Protecting power plant chimneys
Pennguard™ The most versatile acid resistant chimney lining for fossil fired power plants.

PennguardTM Block Lining System

Can be installed onto:

  • Steel
  • Concrete
  • Ceramic Brick
  • Organic Coating
  • FRP

Unique product features

  • Chemical resistance
    For low temperature wet flue gas to high temperature untreated gas, even with a high SO₃ content
  • Temperature resistance
    Up to 200 °C or even higher for short periods
  • Thermal Shock resistance
    Most thermal shocks have no effect on PennguardTM linings
  • Low weight
    12 – 15 kg/m², does not require anchors, earthquake resistant
  • Long service life
    virtually no maintenance

HADEK SERVICES

Hadek is the expert on power plant chimney and FGD ductwork protection, and the global distributor of the PennguardTM Block Lining System.

We deliver:

  • Research and feasibility studies
  • Detail engineering
  • Installation supervision
  • Lifetime Performance Monitoring System
  • 10 year limited warranty
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Years of experience

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  • Opatovice Power Station

    Wet Stack Design Study

    Opatovice PP Play the full video

    Wet Stack Design Study

    Opatovice PP
    Opatovice Power Station
    Lignite fired power station renews its flue gas desulphurization system and converts its existing chimney to a PennguardTM lined wet stack

    When a power station changes over to non-reheated FGD wet stack operation, it is very important to consider the risk of "spitting", which is the emission of droplets with acidic condensate from the top of the chimney. This risk and possible remedies, can be investigated through a Wet Stack Design Study, which models the behavior of droplets in the outlet ducts and industrial chimney downstream of the FGD system.

    Read more

    Key facts

    • Lignite fired power station, 330 MWe and 650MWt
    • Wet limestone FGD
    • 135 m high reinforced concrete chimney with sectional brick flue
    • PennguardTM lining applied directly onto internal surface of the brick flue

  • Opatovice Power Station

    Opatovice Power Station
    • PennguardTM lining: installed in existing chimney with brick flue
    • Flue gas treatment: wet limestone FGD
    • Flue gas: 60ºC desulfurized, non-reheated (wet stack)
    Read more
  • Sadara steam station
    Sadara steam station
    Oil and gas fired steam station in Saudi Arabia uses PennguardTM lined free-standing steel chimneys downstream of its FGD systems

    Weld it. Stack it. Line it. - The construction of a very large project like the Sadara chemical complex requires that each and every part is completed reliably, on time, and on budget. This rule also applies to the welding, the erection, and the lining of the six steel chimneys. Once the industrial chimneys were in place, the PennguardTM lining was installed in three steps.

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    Key facts

    • 6 x 80 MW oil and gas fired steam plant
    • Alstom New Integrated Design (NID) FGD system (Semi dry)
    • Six free-standing steel chimneys
    • PennguardTM lining system installed in the steel chimneys

  • Sadara steam station

    Sadara steam station
    • PennguardTM lining: installed in six new steel chimneys
    • Flue gas treatment: Semy-dry FGD
    • Flue gas: desulfurized, non-reheated to 81˚C
    Read more
  • Rybnik Power Station
    Rybnik Power Station
    Coal fired Power Station in Poland uses PennguardTM linings to protect corroded steel chimney flues while leaving old organic coating in place

    To maximize efficiency of the FGD plants, the owner decided to operate wet stack. To protect the steel flues of the industrial chimney against corrosion, they were both lined with a sprayable organic coating. The coating appeared not to be fully resistant to the demanding environment. In 2012 and 2013 Rybnik repaired both flues by installing PennguardTM linings directly over the existing coating, avoiding costly and time consuming repairs.

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    Key facts

    • 1,775 MW coal fired power station
    • Two wet FGD plants for four 215 MW units
    • 120 m high FGD wet stack with two steel flues
    • PennguardTM lining applied directly onto organic lining inside corroded chimney flues

  • Rybnik Power Station

    Rybnik Power Station
    • PennguardTM lining: installation in existing concrete chimney in two steel flues
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 52°C (wet stack)
    Read more
  • Amercentrale power station unit 9 (2013 project)
    Amercentrale power station unit 9
    Large coal-fired power station increases its efficiency by eliminating flue gas reheat and converting its industrial chimney to a PennguardTM lined wet stack

    After some 20 years of operation, the steam reheater of Amercentrale 9 had come to an end. The owner then considered the options of replacing the reheater, or converting the chimney to a ‘wet stack’. Not operating a reheater would deliver a significant increase in overall power plant efficiency. Also, sealing the brick flue with PennguardTM was achievable within the already scheduled 31-day outage.

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    Key facts

    • 640 MW coal-fired power station
    • Wet limestone FGD
    • 181 m high reinforced concrete industrial chimney with sectional brick flue
    • PennguardTM lining applied directly onto the brick flue’s internal surface in two phases

  • Amercentrale power station unit 9

    Amercentrale power station unit 9
    • PennguardTM lining: installation in existing concrete chimney with one sectional brick flue
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 50-55°C
    Read more
  • Hongsa Power Station
    Hongsa Power Station
    Very large mine mouth, lignite fired power station in Laos uses Wet Limestone FGD and industrial chimney with PennguardTM lined steel flues

    Just across the border of Northern Thailand, a consortium of two Thai companies, Banpu Power and Ratchaburi Electricity, along with the Lao Government are constructing one of the world’s largest new mine mouth power stations. The mild steel chimney flues were protected with 18,263 m2 of PennguardTM linings to a high quality standard, on schedule and under challenging conditions. How?

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    Key facts

    • 3 x 626 MW lignite fired power station
    • Wet Limestone FGD system with GGH reheat
    • 250 m high reinforced concrete industrial chimney
    • Three PennguardTM lined steel chimney flues

  • Hongsa Power Station

    Hongsa Power Station
    • PennguardTM lining: installation in new concrete chimney with three steel flues
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, reheated 81-84°C
    Read more
  • Medupi and Kusile power stations
    Medupi and Kusile power stations
    Two 4800 MW, newly built coal fired power stations in South Africa use industrial chimneys with PennguardTM lined steel flues

    State electricity producer Eskom decided to construct two new 4800 MW coal fired Medupi and Kusile power stations to secure the power supply in South Africa. All twelve steel chimney flues were protected with PennguardTM linings. Two experts from TÜV Rheinland visited the Kusile site to perform a safety audit during a large scale PennguardTM installation over a period of several days. Is it safe?

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    Key facts

    • Two 6 x 800 MW coal-fired power stations
    • FGD to be retrofitted to Medupi Power Station
    • Wet limestone FGD, no reheat for Kusile Power Station
    • Two, 220m-high reinforced concrete chimneys for each station
    • Three PennguardTM- lined steel flues in each chimney

  • Medupi Power Station

    Medupi and Kusile power stations
    • PennguardTM lining: installed in two concrete chimneys each with three steel flues
    • flue gas treatment: wet limestone FGD
    • Flue gas: initially non FGD, followed by desulfurized, non-reheated flue gas 52°C (wet stack)
    Read more

  • Kusile Power Station

    Kusile Power Station
    • PennguardTM lining: installation in new concrete chimneys with three steel flues
    • flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized,non-reheated 48-52°C (wet stack)
    Read more
  • Elektrowni Dolna Odra Unit 5-8
    Elektrowni Dolna Odra Unit 5-8
    Coal fired power station in Poland modifies existing chimney for FGD wet stack operation by installing PennguardTM lining onto concrete windshield

    To make the industrial chimney suitable for wet stack operation, the contractor has removed the brick flue and its supports, and then installed a PennguardTM lining directly onto the concrete windshield. This design change results in a chimney top diameter of 12.6 m and a very safe gas flow velocity of ca. 11 m/s. No spitting is expected at this low gas velocity. This Project Report shows the modification step-by-step.

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    Key facts

    • Unit 5 - 8 (2 x 222 MW and 2 x 232 MW) use a single industrial chimney
    • Since 2002: FGD with reheat for Unit 7 & 8
    • After 2012: FGD for all Units, no reheat

  • Elektrowni Dolna Odra Unit 5-8

    Elektrowni Dolna Odra Unit 5-8
    • PennguardTM lining: installation in existing concrete shell directly
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 49°C
    Read more
  • Pecém and Itaqui power stations
    Pecém and Itaqui power stations
    Three new coal fired power stations in Brazil use New Chimney DesignTM to minimize chimney construction cost and maximize long term reliability

    MPX Energia constructed three coal fired thermal power plants (TPPs) in Brazil with semi dry scrubbers to reduce SO₂. The 67ºC scrubbed flue gas temperature, is well below the sulphuric acid dewpoint. Consequently, the internal surfaces of the industrial chimneys must be resistant to sulphuric acid condensate. The owner chose New Chimney Design (NCD) chimneys, to achieve both low construction cost and long term durability.

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    Key facts

    • Pecém I: 2 x 360 MW power station Pecém II: 1 x 360 MW power station Itaqui: 1 x 360 MW power station
    • Semi dry FGD for SO₂ reduction
    • Flue gas temperature 67 °C
    • Four PennguardTM lined concrete chimneys (New Chimney Design)

  • Porto do Pecem Power Station

    Pecém and Itaqui power stations
    • PennguardTM lining: installation in new concrete chimneys, on concrete shell directly (New Chimney Design).
    • Flue gas treatment: Semi dry FGD
    • Flue gas: desulfurized, non-reheated 67°C
    Read more

  • Porto do Itaqui Power Station

    Porto do Itaqui Power Station
    • PennguardTM lining: installation in new concrete chimney, on concrete shell directly (New Chimney Design).
    • Flue gas treatment: Semi dry FGD
    • Flue gas: desulfurized, non-reheated 67°C
    Read more
  • Patnow II Power Station
    Patnow Power Station
    Large power station in Poland saves money, time and space by using the New Chimney Design for two new FGD wet stacks

    As the existing chimneys were not suitable for wet stack operation, the owner decided to construct two PennguardTM lined concrete chimneys (New Chimney Design). Even though two industrial chimneys seemed more expensive than one twin flue chimney, the cost of two chimneys could be kept low, by applying the PennguardTM lining directly to a slender concrete shell, avoiding the use of internal flues.

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    Key facts

    • 4 x 200 MW lignite fired units
    • Two wet limestone FGD systems
    • No flue gas reheat
    • Each FGD absorber is connected to a PennguardTM lined concrete chimney (New Chimney Design)

  • Patnow Power Station Unit 1-4

    Patnow Power Station Unit 1-4
    • PennguardTM lining: installed in 2 new concrete chimneys, on concrete shell directly (New Chimney Design).
    • Flue gas treatment: wet limestone FGD.
    • Flue gas: desulfurized, non-reheated 67°C (wet stack).
    Read more

  • Patnow II Power Station

    Patnow II Power Station
    • PennguardTM lining: in existing chimney with sectional brick flue
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 67°C
  • Tanjung Bin Power Station
    Tanjung Bin Power Station
    Large new coal fired power station in Malaysia uses PennguardTM lining system for protection of its three steel chimney flues

    To protect the steel chimney flues against the very corrosive and variable operating regime, PennguardTM linings were applied over their full height. In total, the three steel chimney flues use 13,037 m2 of PennguardTM linings. The builders of the Tanjung Bin chimney (BEC) chose for pre-lined cans and bolted flanges.

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    Key facts

    • 3 x 700 MW coal fired power station
    • Sea Water FGD on all three units
    • Partial FGD bypass
    • 200 m reinforced concrete chimney with three, PennguardTM lined steel flues

  • Tanjung Bin Power Station

    Tanjung Bin Power Station
    • PennguardTM lining: installed in 3 new FRP outlet ducts
    • Flue gas treatment: sea water FGD / bypass reheat
    • Flue gas: desulfurized, reheated, mix of scrubbed 36°C and unscrubbed 160°C

  • Tanjung Bin Power Station

    Tanjung Bin Power Station
    • PennguardTM lining: installed in new concrete chimney with 3 steel flues
    • Flue gas treatment: sea water FGD / bypass reheat
    • Flue gas: desulfurized, reheated 75°C, FGD bypass 137°C
    Read more

  • Tanjung Jati B Power Station

    Tanjung Bin Power Station
    • PennguardTM lining: in new concrete chimney with two steel flues
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, reheated 53 - 80˚C

  • Tanjung Bin 4 Power Station

    Tanjung Bin 4 Power Station
    • PennguardTM lining: installation in new concrete chimney with one steel flue
    • Flue gas treatment: sea water FGD
    • Flue gas: desulfurized, reheated 75°C
  • Colbun Power Station
    Colbun and Bocamina Power Stations
    Two new coal fired power stations in Chile use New Chimney Design and find their industrial chimneys undamaged after strong earthquake

    Both Colbun and Bocamina power stations have ‘New Chimney Design’ (NCD) chimneys, protected by lightweight, insulating PennguardTM linings applied directly to its inside concrete surface. NCD chimneys are lighter than conventional chimneys with internal flues. This makes the design safer during earthquakes. This Project Report describes the NCD chimneys in strong earthquakes in theory and in practice.

    Read more

    Key facts

    • 1 x 370 MW coal fired power stations
    • FGD for SO₂ reduction
    • Flue gas reheated to 60 - 80 °C
    • PennguardTM lined concrete chimneys (New Chimney Design)

  • Colbun Power Station

    Colbun Power Station
    • PennguardTM lining: installation in new concrete chimney, on concrete shell directly (New Chimney Design)
    • Flue gas treatment: sea water FGD
    • Flue gas: desulfurized, reheated 60°C
    Read more

  • Bocamina II Power Station

    Bocamina II Power Station
    • PennguardTM lining: installation in new concrete chimney, on concrete shell directly (New Chimney Design)
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, reheated 80°C
    Read more
  • Rovinari power station
    Rovinari power station
    Lignite fired power station in Romania fits FGD with Wet Booster Fans and PennguardTM lined concrete chimneys for maximum efficiency

    One significant decision was to place the required booster fans downstream, rather than upstream of the FGD absorbers. The second decision was to use PennguardTM lined concrete chimneys (New Chimney Design), to lower the construction cost compared to traditional chimneys and to minimize the condensate formation within the wet stacks.

    Read more

    Key facts

    • 4 x 330 MW lignite fired power station
    • Wet limestone FGD with Wet Booster Fan for Units 3 - 6
    • No flue gas reheat
    • Four PennguardTM lined concrete chimneys (New Chimney Design)

  • Rovinari power station

    Rovinari power station
    • PennguardTM lining: installation in four new concrete chimneys, on concrete shell directly (New Chimney Design)
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 62°C (wet stack)
    Read more
  • Quang Ninh I Thermal Power Plant
    Quang Ninh Power Plant
    New 4 x 300 MW coal fired power station in Vietnam uses FGD chimneys with PennguardTM lined steel flues

    Owners expect near 100% availability from every component of their plant, including the industrial chimney lining. The steel flues of the two Quang Ninh Power Station chimneys have been lined with 331,200 pieces of PennguardTM Block. To meet the owner’s expectations, the production, engineering and installation of the PennguardTM lining system followed a rigorous step-by-step quality control process.

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    Key facts

    • 4 x 300 MW coal fired power station
    • Wet limestone FGD
    • Reheat by rotating gas-to-gas heaters
    • 2 concrete chimneys each with two PennguardTM lined steel flues

  • Quang Ninh I Thermal Power Plant

    Quang Ninh I Thermal Power Plant
    • PennguardTM lining: new chimney with two steel flues
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, reheated to 80°C
    Read more

  • Quang Ninh II Thermal Power Plant

    Quang Ninh II Thermal Power Plant
    • PennguardTM lining: installation in new concrete chimney with two steel flues.
    • Flue gas treatment: wet limestone FGD.
    • Flue gas: desulfurized, reheated to 80°C.
    Read more
  • Spurlock Power Station Unit 1 and 2
    Spurlock Power Station
    Large coal fired power station in Kentucky builds two industrial chimneys with PennguardTM lined steel flues for FGD wet stack service

    The East Kentucky Power Cooperative (EKPC) produces electricity for 16 regional power cooperatives, which between them serve one million consumers in 89 counties. The Spurlock Power Station near Maysville, Kentucky is EKPC’s largest power station. Spurlock station has completed two wet limestone flue gas desulphurization (FGD) systems, each with a new, PennguardTM lined chimney.

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    Key facts

    • 1 x 325 MW, 1 x 525 MW and 2 x 268 MW coal fired power station
    • Wet limestone FGD on Unit 1 and Unit 2
    • No flue gas reheat
    • Two new concrete chimneys with a PennguardTM lined steel flue

  • Spurlock Power Station Unit 1 and 2

    Spurlock Power Station Unit 1 and 2
    • PennguardTM lining: in 2 new concrete chimneys with a steel flue
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 52°C (wet stack)
    Read more
  • Castle Peak B Power Station Unit 1 – 4
    Castle Peak B Power Station Unit 1 – 4
    Largest coal fired power station in Hong Kong fits FGD and installs PennguardTM linings in 250 m high chimney with four flues

    Due to the FGD retrofit, the flue gas temperature would drop well below its acid dewpoint, resulting the need to protect the unprotected steel flues with a chimney flue lining system. CLP Power decided to install PennguardTM linings within scheduled outage times only. More than just being quick, the work would have to result in a lining service life exceeding 20 years, without significant maintenance or repair.

    Read more

    Key facts

    • 4 x 677 MW coal fired boilers
    • FGD for SO₂ reduction
    • Flue gas reheated to 80°C
    • PennguardTM linings installed in existing 250 m industrial chimney with 4 steel flues

  • Castle Peak B Power Station Unit 1 – 4

    Castle Peak B Power Station Unit 1 – 4
    • PennguardTM lining: installation in existing concrete chimney with 4 steel flues
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, reheated 80°C, FGD bypass 150°C
    Read more
  • San Juan Generating Station Unit 3 and 4
    San Juan Generating Station
    Coal fired power station in the western United States prepares its four industrial chimneys for wet stack operation by installing PennguardTM linings in the brick flues

    Ever since the introduction of FGD plants, owners have decided to re-use their existing, brick lined chimneys for low temperature, acid condensing operation. Brick flues have been prepared for aggressive FGD operating conditions in various ways and PennguardTM linings have proven to be the most effective, durable technology. Why?

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    Key facts

    • 2 x 350 MW and 2 x 550 MW coal fired power station
    • wet FGD on all four units
    • No flue gas reheat
    • All four existing chimneys with brick flues to be lined with PennguardTM

  • San Juan Generating Station Unit 1 and 2

    San Juan Generating Station Unit 1 and 2
    • PennguardTM lining: installed autumn 2008/ spring 2009 in 2 existing concrete chimneys with brick liner
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 52°C (wet stack)
    Read more

  • San Juan Generating Station Unit 3 and 4

    • PennguardTM lining: installed in 2 existing chimneys with brick liner
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 52°C (wet stack)
    Read more
  • Aberthaw Power Station
    Aberthaw Power Station
    Coal fired power station in Wales prepares existing chimney for FGD operation by installing PennguardTM linings in brick flues

    RWE npower decided to fit Sea Water Flue Gas Desulfurization (FGD) at Aberthaw power station based on more stringent SO₂ emissions regulations. This would have consequence for the existing 40 year old brick flue chimney. This Project Report describes the industrial chimney modification process in a step-by-step process and explains in detail how a PennguardTM lining protects a brick flue from thermal stress.

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    Key facts

    • 3 x 500 MW coal fired power station
    • Seawater FGD
    • 153 m concrete chimney with 3 sectional brick flues
    • PennguardTM lining directly applied onto the brick flues for safe wet stack operation

  • Aberthaw Power Station

    • PennguardTM lining: installed in existing chimney with 3 brick liners
    • Flue gas treatment: sea water FGD
    • Flue gas: desulfurized, reheated 50°C, FGD bypass 130°C
    Read more
  • Cottam Power Station
    Cottam Power Station
    British coal-fired power station uses PennguardTM linings to prepare its existing multi-flue chimney for wet stack operation

    For environmentally safe operation of the wet stack, EDF Energy contracted Alden Research Laboratory, to study the options for the outlet ducts and the industrial chimney flues. Based on the consultant’s recommendations, the existing chimney was modified by removing the brick linings from the 4 concrete flues and by protecting the inner concrete surface with PennguardTM linings directly. How? Click on read more.

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    Key facts

    • 4 x 500 MW coal fired power station
    • Wet FGD fitted to all 4 units
    • No flue gas reheat
    • Existing 4-flue chimney modified for wet stack use
    • Brick removed, PennguardTM lining applied to concrete flues

  • Cottam Power Station

    Cottam Power Station
    • PennguardTM lining: installed in 4 existing concrete chimneys each with 4 concrete flues
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 50°C (wet stack)
    Read more
  • Coleson Cove Generating Station
    Coleson Cove Generating Station
    Canadian power station fits FGD for 25 more years of service and constructs a new chimney with PennguardTM lined flues

    To convert Coleson Cove station into a low cost generator, NB Power decided to make the station suitable for firing Orimulsion and to operate wet stack. For this, a new chimney with two PennguardTM lined steel flues was constructed. The Project Report also describes how insulating PennguardTM linings will help to reduce condensate formation within wet stacks during start-ups.

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    Key facts

    • 3 x 350 MW heavy fuel oil fired power station
    • Wet FGD and wet precipitator
    • 182 m concrete chimney with two PennguardTM lined steel flues
    • PennguardTM linings help to reduce condensate formation during start-ups

  • Coleson Cove Generating Station

    Coleson Cove Generating Station
    • PennguardTM lining: installed in new concrete chimney with 2 steel chimney flues
    • Flue gas treatment: wet FGD and wet precipitator
    • Flue gas: desulfurized, non-reheated 57°C (wet stack)
    Read more
  • Craiova Power Station
    Craiova Power Station
    Romanian power station modifies concrete chimney using PennguardTM Block Lining System

    A technical survey of the chimney showed that the concrete shell and the brick lining supports were under attack from sulphuric acid condensate. Also, thermal cycling had created wide cracks in the concrete windshield. Any further deterioration of the industrial chimney would be an unacceptable risk, also considering the earthquake risk. This Project Report describes the chimney refurbishment project.

    Read more

    Key facts

    • 400 MW coal fired power station
    • Coal with 8 – 12% sulfur
    • Unscrubbed flue gas 140 – 160 ºC
    • Modification of 200 m high concrete chimney with brick liner
    • Brick liner removed and PennguardTM linings installed onto concrete shell

  • Craiova Power Station

    Craiova Power Station
    • PennguardTM lining: installed in existing chimney on concrete shell
    • Flue gas treatment: no FGD at present time
    • Flue gas: unscrubbed 140 - 160°C
    Read more
  • West Burton Power Station
    West Burton Power Station
    Large coal fired power station in England uses PennguardTM linings for its new FGD chimneys

    An increasing number of coal fired power stations are experiencing frequent start-ups and shutdowns as they have to follow the demands of a free electricity market. West Burton Power Station is a good example; outside of the winter season, it often operates on a “two-shift” schedule, starting its 500 MW units every morning and stopping them every night. This cycling operating schedule creates many challenges for the station.

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    Key facts

    • PennguardTM lining: installed in 2 new concrete chimneys with each 2 steel flues
    • Flue gas treatment: wet FGD with gas-gas-reheat
    • Flue gas: desulfurized, reheated 88°C

  • West Burton Power Station

    West Burton Power Station
    • PennguardTM lining: installed in 2 new concrete chimneys with each 2 steel flues
    • Flue gas treatment: wet FGD with gas-gas-reheat
    • Flue gas: desulfurized, reheated 88°C
    Read more
  • Hadong Power Station 5 and 6
    Hadong Power Station
    South Korean Power Station installs PennguardTM linings to prepare six concrete chimneys for FGD operation

    Before the introduction of FGD, the standard chimney design for KEPCO’s coal fired power stations was a 150m high concrete chimney, protected internally with a sectional ceramic brick liner. The addition of FGD absorbers to all six units would create a technical problem for the old chimney design. The customer chose PennguardTM linings in 6 concrete industrial chimneys in 3 different ways.

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    Key facts

    • 6 x 500 MW coal fired power station, South Korea
    • Wet FGD with gas-gas-reheater for all units
    • Modification of six 150 m high concrete chimneys
    • PennguardTM linings applied directly onto brick and concrete substrates

  • Hadong Power Station 1 and 2

    Hadong Power Station 1 and 2
    • PennguardTM lining: installed in two existing concrete chimneys with brick chimney liner.
    • Flue gas treatment: wet FGD with gas-gas-reheat.
    • Flue gas: desulfurized, reheated 85°C
    Read more

  • Hadong Power Station 3 and 4

    Hadong Power Station 3 and 4
    • PennguardTM lining: installed in two new concrete chimneys with PennguardTM on concrete
    • Flue gas treatment: wet FGD with gas-gas-reheat
    • Flue gas: desulfurized, reheated 85°C
    Read more

  • Hadong Power Station 5 and 6

    Hadong Power Station 5 and 6
    • PennguardTM lining: installed in 2 new chimneys, directly onto concrete shell
    • Flue gas treatment: wet FGD with gas-gas-reheat
    • Flue gas: desulfurized, reheated 85°C
    Read more
  • Pha-Lai 2 Power Station
    Pha-Lai 2 Power Station
    Vietnam’s most modern coal fired power station uses PennguardTM chimney flue linings

    For the 200m high reinforced concrete chimney with two 4.5m diameter steel flues, the contractor decided to line the 7.2m high steel cans with PennguardTM on ground level first. Then, the pre-lined cans were placed inside the industrial chimney and welded to the flue. The chosen work method proved to be fast and efficient. The PennguardTM lined flues were installed within 8 weeks.

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    Key facts

    • 2 x 300 MW Power Station, Vietnam
    • 0,5 – 0,7% sulphur antracite coal
    • Wet FGD with 15% bypass
    • 200 m concrete chimney with two PennguardTM lined steel flues
    • Successful lining installation in tropical climate with high humidity

  • Pha-Lai 2 Power Station

    Pha-Lai 2 Power Station
    • PennguardTM lining: installed in new concrete chimney with 2 steel chimney flues
    • Flue gas treatment: wet FGD with 15% bypass
    • Flue gas: desulfurized, reheated 60°C
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  • Teruel Power Station Unit 1,2 and 3
    Teruel Power Station
    PennguardTM linings protect the FGD outlet ducts of a lignite fired power station

    The FGD outlet ducts are exposed to highly corrosive operating conditions and sometimes to a total or partial FGD bypass of the unscrubbed gas stream. The PennguardTM Block Lining System was chosen for the internal protection of the three large FGD outlet ducts. After mounting the three large outlet ducts onto their support construction, the PennguardTM lining installation followed.

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    Key facts

    • 3 x 350 MW high sulfur lignite fired plant, Spain
    • Wet FGD with hot air reheat to 75 – 85 ºC
    • 3 steel outlet ducts, PennguardTM lined

  • Teruel Power Plant

    Teruel Power Plant
    • PennguardTM lining: installed in 3 new steel outlet ducts
    • Flue gas treatment: wet FGD with hot air reheat
    • Flue gas: desulfurized, reheated 85 °C
    Read more
  • Sual Power Station
    Sual Power Station
    PennguardTM protects the steel chimney flues of the largest coal fired power station in the Philippines

    During the selection of a suitable lining for the steel chimney flues, it became clear that the Sual project presented several specific challenges. The main points of consideration were the chemical environment in the flues, the seismic activity of the region and the adverse local climate conditions.

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    Key facts

    • 2 x 609 MW coal fired power station, Philippines
    • Wet FGD with 30% bypass operation
    • New concrete chimney with two PennguardTM lined steel flues
    • Plant located in seismically active region

  • Sual Power Station

    Sual Power Station
    • PennguardTM lining: installed in new concrete chimney with two steel chimney liners
    • Flue gas treatment: wet FGD with 30% bypass
    • Flue gas: desulfurized, reheated 74 – 80 °C
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  • Amercentrale, Unit 9
    Amercentrale, Unit 9
    PennguardTM seals and protects leaking brick chimney liner

    In 1996, it was discovered that the lower part of the internal brick liner of the Unit 9 industrial chimney was under attack by highly acidic flue gas condensate. This condensate was permeating the brick liner and threatening to attack the concrete support structure. An impermeable PennguardTM lining was installed directly onto the brick flue surface to prevent further leaking. Click on Read More, for details.

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    Key facts

    • 1 x 645 Mw coal fired power station
    • Wet FGD with reheat
    • 181 m high chimney with sectional brick flue
    • Lower part brick flue under acid condensate attack, therefore sealed with PennguardTM linings

  • Amercentrale, Unit 9

    Amercentrale, Unit 9
    • PennguardTM lining: concrete chimney with one sectional brick flue
    • Flue gas treatment: wet limestone FGD with gas fired reheater
    • Flue gas: desulfurized, reheated 60°C
    Read more (1996)
  • Dunamenti Power Station
    Dunamenti Power Station
    PennguardTM protects steel chimney liners in a heavy oil fired power plant

    6 x 220 MW heavy oil fired Dunamenti Power Station had a problem in its industrial chimneys. The station had two 200m high chimneys, each with three internal steel flues. Even though the gas temperature was 150 – 160°C, the steel flues were under strong acid attack, especially around ‘cold spots’. In order to solve the problem, the steel flues were repaired and partially relined with the PennguardTM Block Lining System.

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    Key facts

    • 9 x 220 MW power station
    • Heavy fuel oil firing
    • Unscrubbed flue gas 150 – 160 ºC
    • Three 200 m high concrete chimneys each with 3 steel flues
    • Problems and solution for cold spots

  • Dunamenti Power Station

    Dunamenti Power Station
    • PennguardTM lining: installed in 3 existing concrete chimneys each with three steel chimney flues
    • Flue gas treatment: no flue gas treatment
    • Flue gas: unscrubbed 160°C
    Read more

  • Taichung Power Station 1 - 8

    Taichung Power Station 1 - 8
    • PennguardTM lining: installed in new steel FGD ducts
    • Flue gas treatment: wet FGD
    • Flue gas: desulfurized, non-reheated 50°C

  • Petersburg Power Station Units 1 & 2

    Petersburg Power Station Units 1 and 2
    • PennguardTM lining: installed in new steel FGD inlet and outlet ducts
    • Flue gas treatment: wet FGD
    • Flue gas: unscrubbed 140°C, desulfurized, non-reheated 50°C

  • Petersburg Power Station Unit 1

    Petersburg Power Station Unit 1
    • PennguardTM lining: installed in existing concrete bypass chimney with steel flue
    • Flue gas treatment: wet FGD
    • Flue gas: unscrubbed 140°C

  • Amercentrale, Unit 8

    Amercentrale Unit 8
    • PennguardTM lining: installed in existing steel FGD outlet duct
    • Flue gas treatment: wet FGD with gas fired reheat
    • Flue gas: desulfurized, reheated 60°C

  • Centrale de Cordemais, 4 and 5

    Centrale de Cordemais, 4 and 5
    • PennguardTM lining: installed in new steel duct
    • Flue gas treatment: wet FGD with gas-gas-reheat
    • Flue gas: unscrubbed 130°C – 150°C

  • Centrale du Havre, Unit 4

    Centrale du Havre, Unit 4
    • PennguardTM lining: installed in new steel duct (hot side)
    • Flue gas treatment: wet FGD with gas-gas-reheat
    • Flue gas: unscrubbed 130°C – 150°C

  • Boryung Power Station 3 to 6

    Boryung Power Station 3 to 6
    • PennguardTM lining: installed in 4 existing concrete chimneys with brick liner
    • Flue gas treatment: wet FGD with gas-gas-reheat
    • Flue gas: desulfurized, reheated 85°C

  • Taean Power Station 1 to 4

    Taean Power Station 1 to 4
    • PennguardTM lining: 4 existing concrete chimneys with internal brick liner
    • Flue gas treatment: wet FGD with gas-gas-reheat
    • Flue gas: desulfurized, reheated 85°C

  • Teruel Power Station Unit 1,2 and 3

    Teruel Power Station Unit 1,2 and 3
    • PennguardTM lining: installed in lower 51 m of existing single brick chimney liner
    • Flue gas treatment: wet FGD with hot air reheat
    • Flue gas: desulfurized, reheated 75 - 85°C

  • Ho-Ping Power Station

    Ho-Ping Power Station
    • PennguardTM lining: installed in new concrete chimney with 2 steel flues
    • Flue gas treatment: wet FGD with gas-gas-reheat
    • Flue gas: desulfurized, reheated 90°C

  • Samchonpo Power Station 1 - 4

    Samchonpo Power Station 1 - 4
    • PennguardTM lining: installed in 2 existing steel chimneys with 4 steel flues each
    • Flue gas treatment: wet FGD with gas-gas-reheat
    • Flue gas: desulfurized, reheated 85°C

  • Vasilikos Phase II, Unit 3

    Vasilikos Phase II, Unit 3
    • PennguardTM lining: installed in new concrete chimney with 3 steel flues
    • Flue gas treatment: sea water FGD / GGH reheat
    • Flue gas: desulfurized, reheated 84°C

  • Craig Generating Station 2

    Craig Generating Station 2
    • PennguardTM lining: installation in existing concrete chimney with free
    • standing brick liner (upper 75 %)
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 48°C

  • Tanners Creek Unit 4

    Tanners Creek Unit 4
    • PennguardTM lining: installed in existing freestanding steel chimney
    • Flue gas: unscrubbed 155°C

  • Uong Bi Power Station

    Uong Bi Power Station
    • PennguardTM lining: installed in new concrete chimney with 1 steel flue
    • Flue gas treatment: wet FGD with partial bypass
    • Flue gas: desulfurized, reheated 60°C

  • KW Weisweiler Block G/H

    KW Weisweiler Block G/H
    • PennguardTM lining: installed in existing chimney with 1 brick flue
    • Flue gas treatment: combined cycle
    • Flue gas: unscrubbed 98°C, up to 160°C

  • Dallmann Power Station

    Dallmann Power Station
    • PennguardTM lining: installed in existing chimney with brick liner
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 50°C (wet stack)

  • Killen Station Unit 2

    Killen Station Unit 2
    • PennguardTM lining: installed in existing chimney with brick liner
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 50°C, FGD bypass 139°C (wet stack)

  • Killen Station Unit 2

    Killen Station Unit 2
    • PennguardTM lining: installed in existing steel bypass duct
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 50°C, FGD bypass 139°C

  • Marshall Steam Station Unit 1, 2, 3 and 4

    Marshall Steam Station Unit 1 2 3 and 4
    • PennguardTM lining: installed in new steel ductwork
    • Flue gas treatment: wet limestone FGD
    • Flue gas: mix of 5% air and unscrubbed flue gas of 138°C (open-bypass system)

  • Mitchell Power Station

    Mitchell Power Station
    • PennguardTM lining: installed in new steel FGD outlet and chimney breeching ducts
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 52°C

  • Maritsa East 2 Power Station Unit 7 & 8

    Maritsa East 2 Power Station Unit 7 and 8
    • PennguardTM lining: installed in existing chimney with concrete / brick liner
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 73°C, emergency bypass 160°C (wet stack)

  • Rabigh Power and Desalination Plant

    Rabigh Power and Desalination Plant
    • PennguardTM lining: installed in 3 new steel chimneys
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 58°C, emergency bypass 163°C (wet stack)

  • Rabigh Power and Desalination Plant

    Rabigh Power and Desalination Plant
    • PennguardTM lining: installed in new steel inlet ducts
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 58°C

  • Jimah Power Station

    Jimah Power Station
    • PennguardTM lining: installed in new concrete chimney with 2 steel chimney flues
    • Flue gas treatment: sea water FGD / bypass reheat.
    • Flue gas: desulfurized, reheated 75°C, FGD bypass 140°C

  • Zimmer Generating Station

    Zimmer Generating Station
    • PennguardTM lining: installed in existing concrete chimney with free standing brick liner
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, reheated 57°C

  • Kilroot Power Station

    Kilroot Power Station
    • PennguardTM lining: installed in existing concrete chimney with 2 steel flues
    • Flue gas treatment: sea water FGD / GGH reheat
    • Flue gas: desulfurized, reheated 57°C, emergency bypass 155°C

  • Kilroot Power Station

    Kilroot Power Station
    • PennguardTM lining: installed in 2 existing steel outlet ducts
    • Flue gas treatment: sea water FGD / GGH reheat
    • Flue gas: desulfurized, reheated 50 - 80°C / emergency bypass 155°C

  • Fiddler’s Ferry Power Station Units 2,3 and 4

    Fiddler’s Ferry Power Station Units 2,3 and 4
    • PennguardTM lining: installed in 3 existing brick lined concrete flues within a 4-flue chimney
    • Flue gas treatment: wet limestone FGD with gas-gas-reheat
    • Flue gas: desulfurized, reheated 82°C, FGD bypass 130°C

  • Ferrybridge Power Station Units 3 and 4

    Ferrybridge Power Station Units 3 and 4
    • PennguardTM lining: installed in existing concrete chimney with brick liner
    • Flue gas treatment: wet limestone FGD with gas-gas-reheat
    • Flue gas: desulfurized, reheated 82°C, FGD bypass 130°C

  • Rugeley Power Station

    Rugeley Power Station
    • PennguardTM lining: installed in new concrete chimney with 2 steel flues
    • Flue gas treatment: wet limestone FGD with gas-gas-reheat
    • Flue gas: desulfurized, reheated 80-90°C, FGD bypass 130°C

  • Plant Hammond Unit 1, 2, 3 and 4

    Plant Hammond Unit 1, 2, 3 and 4
    • PennguardTM lining: installed in new steel ductwork between electrostatic precipitators and FGD absorber
    • Flue gas treatment: wet limestone FGD
    • Flue gas: mix of 5% air and unscrubbed flue gas of 140°C (open-bypass system)

  • Centrale de Provence Unit 5

    Centrale de Provence Unit 5
    • PennguardTM lining: installed in new steel ductwork between scrubber and chimney
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 50°C

  • Mondi Packaging Paper Mill

    Mondi Packaging Paper Mill
    • PennguardTM lining: installation in new concrete chimney, directly onto concrete shell (New Chimney Design)
    • Flue gas treatment: no FGD
    • Flue gas: unscrubbed 140°C

  • Haiphong I Thermal Power Plant

    Haiphong I Thermal Power Plant
    • PennguardTM lining: installed in new concrete chimney with 2 steel flues
    • Flue gas treatment: wet limestone FGD with partial bypass
    • Flue gas: desulfurized, reheated 60°C

  • Mayo Generating Station Unit 1

    Mayo Generating Station Unit 1
    • PennguardTM lining: installation spring 2008, in new concrete chimney with steel chimney flue
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 52°C (wet stack)

  • Mayo Generating Station Unit 1

    Mayo Generating Station Unit 1
    • PennguardTM lining: installed in new steel outlet duct
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 52°C

  • Amos Power Station Unit 1, 2 and 3

    Amos Power Station Unit 1, 2 and 3
    • PennguardTM lining: installed in new steel FGD outlet and chimney inlet ducts
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 52°C

  • Oak Grove Generating Station Unit 1 and 2

    Oak Grove Generating Station Unit 1 and 2
    • PennguardTM lining: installed in 2 new concrete chimneys with a steel chimney flue
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 60°C (wet stack)

  • Jimah Power Station

    Jimah Power Station
    • PennguardTM lining: installed in 2 new FRP outlet ducts
    • Flue gas treatment: sea water FGD / bypass reheat
    • Flue gas: mix of desulfurized 36°C flue gas and max. 160°C untreated flue gas

  • Guacolda Power Station, Unit 3

    Guacolda Power Station Unit 3
    • PennguardTM lining:In a concrete chimney, on concrete shell directly (New Chimney Design)
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 55°C

  • Nueva Vantanas Power Station Unit 3

    Nueva Vantanas Power Station Unit 3
    • PennguardTM lining: installed in concrete chimney, on concrete shell directly (New Chimney Design)
    • Flue gas treatment: semi dry FGD
    • Flue gas: desulfurized, non-reheated 90°C

  • Cholla Generating Station, Unit 4

    Cholla Generating Station Unit 4
    • PennguardTM lining: installed in existing concrete chimney with brick liner
    • Flue gas treatment: wet FGD
    • Flue gas: desulfurized, non-reheated 50°C

  • Stanton Energy Center, Unit 1 and 2

    Stanton Energy Center Unit 1 and 2
    • PennguardTM lining: installed in new steel outlet ductwork
    • Flue gas treatment: wet FGD
    • Flue gas: desulfurized, non-reheated 50°C

  • Oglethorpe Paper Mill

    Oglethorpe Paper Mill
    • PennguardTM lining: installed in existing chimney, on concrete shell directly
    • Flue gas treatment: wet FGD / by-pass reheat
    • Flue gas: desulfurized, reheated 90°C / unscrubbed

  • St. John's Power Park, Unit 1 and 2

    Saint Johns Power Park Unit 1 and 2
    • PennguardTM lining: installed in new steel outlet ductwork
    • Flue gas treatment: wet FGD
    • Flue gas: desulfurized, non-reheated 50°C

  • Fayette Station Unit 3

    Fayette Station Unit 3
    • PennguardTM lining: installation in existing chimney with free standing brick liner
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 52°C (wet stack)

  • Fayette Station Unit 3

    Fayette Station Unit 3
    • PennguardTM lining: installed in new steel outlet ductwork
    • Flue gas treatment: wet FGD
    • Flue gas: desulfurized, non-reheated 50°C

  • Campiche Power Station

    Campiche Power Station
    • PennguardTM lining: installation in a new concrete chimney, on concrete shell directly (New Chimney Design)
    • Flue gas treatment: Semi dry FGD
    • Flue gas: desulfurized, non-reheated 90°C

  • Angamos Power Station units 1 and 2

    Angamos Power Station units 1 and 2
    • PennguardTM lining: installation in new concrete chimney, on concrete shell directly (New Chimney Design)
    • Flue gas treatment: Semi dry FGD
    • Flue gas: desulfurized 90°C

  • Yanbu Steam Power Station, Units 3 and 4

    Yanbu Steam Power Station, Units 3 and 4
    • PennguardTM lining: installation in new concrete chimney with a steel flue
    • Flue gas treatment: wet limestone FGD on Unit 4
    • Flue gas: mix of desulfurized, reheated 80°C

  • Guacolda Power Station, Unit 4

    Guacolda Power Station Unit 4
    • PennguardTM lining: installation in new concrete chimney, on concrete shell directly (New Chimney Design)
    • Flue gas treatment: no FGD
    • Flue gas: unscrubbed 147°C

  • Bonanza Power Station

    Bonanza Power Station
    • PennguardTM lining: installation in existing freestanding brick chimney liner
    • Flue gas: treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 52°C (wet stack)

  • C.E.T. Sud Bucuresti Unit 1

    C.E.T. Sud Bucuresti Unit 1
    • PennguardTM lining: installation in existing concrete chimney, on concrete shell directly
    • Flue gas treatment: no FGD
    • Flue gas: Unscrubbed 140-170°C

  • Stanton Energy Center Unit 1

    Stanton Energy Center Unit 1
    • PennguardTM lining: installed in existing chimney with free standing brick liner
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 52°C (wet stack)

  • Uong Bi II Thermal Power Plant

    Uong Bi II Thermal Power Plant
    • PennguardTM lining: installation in new concrete chimney with steel flue
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 47°C (wet stack)

  • R.D. Morrow Generating Station

    R.D. Morrow Generating Station
    • PennguardTM lining: modification of existing chimney with two free standing brick flues
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 54°C (wet stack)

  • Crist Unit 4, 5, 6 en 7

    Crist Unit 4 5 6 and 7
    • PennguardTM lining: installed in new steel ductwork between electrostatic precipitators and FGD absorber
    • Flue gas treatment: wet limestone FGD
    • Flue gas: mix of 5% air and unscrubbed Flue gas: unscrubbed 140°C

  • Siekierki Power Station Unit 1-4

    Siekierki Power Station Unit 1-4
    • PennguardTM lining: installation in new concrete chimney, on concrete shell directly (New Chimney Design)
    • Flue gas treatment: Unit 1,2,3,4 non-desulfurized, Unit 2 Semi dry FGD
    • Flue gas:desulfurized, and reheated 138°C

  • Cholla Unit 3

    Cholla Unit 3
    • PennguardTM lining: installation in concrete chimney with two steel flues
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 53°C (wet stack)

  • Big Bend Power Station Unit 4

    Big Bend Power Station Unit 4
    • PennguardTM lining: installation in existing concrete chimney with free standing brick liner
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 52°C (wet stack)

  • Hardingstreet Power Station Unit 7

    Hardingstreet Power Station Unit 7
    • PennguardTM lining: installation in new chimney with steel flue
    • Flue gas treatment: wet limestone FGD
    • Flue gas: unscrubbed 149°C

  • GHECO-ONE power station

    GHECO-ONE power station
    • PennguardTM lining: in new concrete chimney with steel flue
    • Flue gas treatment: sea water FGD
    • Flue gas: desulfurized, reheated 80°C

  • Rabigh IPP

    Rabigh IPP
    • PennguardTM lining: installation in new concrete chimney with two steel flues
    • Flue gas treatment: sea water FGD
    • Flue gas: desulfurized, reheated 80°C

  • Rabigh VI

    Rabigh VI
    • PennguardTM lining: installation in new concrete chimneys with two steel flues.
    • Flue gas treatment: sea water FGD
    • Flue gas: desulfurized, reheated 60-72°C.

  • Jim Bridger Power Station Unit 4

    Jim Bridger Power Station Unit 4
    • PennguardTM lining: installed in existing chimney with free standing brick flue
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 52°C (wet stack)

  • Schahfer Generating Station

    Schahfer Generating Station
    • PennguardTM lining: installation in existing chimney with free standing brick liner
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 54°C (wet stack)

  • Jorf Lasfar Power Station Unit 5 and 6

    Jorf Lasfar Power Station Unit 5 and 6
    • PennguardTM lining: installation in new concrete chimney with two steel flues
    • Flue gas treatment: sea water FGD
    • Flue gas: desulfurized, reheated 129°C

  • Yanbu 2 Power Station

    Yanbu 2 Power Station
    • PennguardTM lining: installation in new concrete chimney in one of two steel flues
    • Flue gas treatment: sea water FGD
    • Flue gas: desulfurized, reheated 112°C

  • Janamanjung 4 Power Station

    Janamanjung 4 Power Station
    • PennguardTM lining: installation in new concrete chimney with one steel flue
    • Flue gas treatment: sea water FGD
    • Flue gas: desulfurized, reheated 82 - 92°C

  • Craig Generating Station 1 and 2

    Craig Generating Station 1 and 2
    • PennguardTM lining: installed in 2 existing concrete chimneys with brick liner
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 48°C (wet stack)

  • Vinh Tan 2 Thermal Power Plant

    Vinh Tan 2 Thermal Power Plant
    • PennguardTM lining: installation in new concrete chimney with two steel flues
    • Flue gas treatment: sea water FGD
    • Flue gas: desulfurized, reheated 80°C

  • Magnetation Pellet Plant

    Magnetation Pellet Plant
    • PennguardTM lining: installation in new concrete chimney, directly onto concrete shell (New Chimney Design)
    • Flue gas: unscrubbed

  • Cochrane Power Plant

    Cochrane Power Plant
    • PennguardTM lining: installation in new concrete chimney, on concrete shell directly (New Chimney Design)
    • Flue gas treatment: Semi dry FGD
    • Flue gas: desulfurized, non-reheated to 83˚C

  • Jeddah South Thermal Power Plant

    Jeddah South Thermal Power Plant
    • PennguardTM lining: installation in new concrete chimney with two steel flues
    • Flue gas treatment: sea water FGD
    • Flue gas: desulfurized, reheated 85°C

  • Cilacap Phase II Power Plant

    Cilacap Phase II Power Plant
    • PennguardTM lining: installation in new concrete chimney with one steel flue
    • Flue gas treatment: sea water FGD
    • Flue gas: during FGD operation 65˚C, FGD bypass 133˚C

  • Duyen Hai 1 Thermal Power Plant

    Duyen Hai 1 Thermal Power Plant
    • PennguardTM lining: installed in concrete chimney with two steel flues
    • Flue gas treatment: sea water FGD
    • Flue gas: desulfurized, reheated 70°C

  • Gibson Generating Station

    Gibson Generating station
    • PennguardTM lining: installation in existing chimney with brick liner
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, none-reheated 53°C

  • Duyen Hai 3 Thermal Power Plant and Duyen Hai 3 Extension project

    Duyen Hai 3 Thermal Power Plant
    • PennguardTM lining: installed in concrete chimney with three steel flues
    • Flue gas treatment: sea water FGD
    • Flue gas: desulfurized, reheated 70°C

  • Shuqaiq Steam Power Plant

    Shuqaiq Steam Power Plant
    • PennguardTM lining: installation in new concrete chimney with two steel flues
    • Flue gas treatment: sea water FGD
    • Flue gas: desulfurized, none-reheated 85°C

  • Thai Bin 2 Thermal Power Plant

    Thai Bin 2 Thermal Power Plant
    • PennguardTM lining: installation in new concrete chimney with two steel flues
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, reheated 67°C

  • Vinh Tan 4 Thermal Power Plant

    Vinh Tan 4 Thermal Power Plant
    • PennguardTM lining: installation in new concrete chimney with two steel flues
    • Flue gas treatment: sea water FGD
    • Flue gas: desulfurized, reheated 80°C

  • Janamanjung 5 Power Station

    Janamanjung 5 Power Station
    • PennguardTM lining: installation in new concrete chimney with one steel flues
    • Flue gas treatment: sea water FGD
    • Flue gas: desulfurized, reheated 82 - 92°C

  • Safi Power Plant

    Safi Power Plant
    • PennguardTM lining: installation in new concrete chimney with two steel flues
    • Flue gas treatment: sea water FGD
    • Flue gas: desulfurized, reheated 95°C

  • Haiphong II Thermal Power Station

    Haiphong II Thermal Power Station
    • PennguardTM lining: installation in new concrete chimney with two steel flues
    • Flue gas treatment: wet limestone FGD (with partial bypass)
    • Flue gas: desulfurized, reheated 80°C

  • Mong Duong II Power Station

    Mong Duong II Power Station
    • PennguardTM lining: installation in new concrete chimney with two steel flues
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, reheated 80°C

  • Escalante Generating Station

    Escalante Generating Station
    • PennguardTM lining: installation in existing chimney with free standing brick liner
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, non-reheated 54°C (wet stack)

  • PLTU Keban Agung Power Station

    PLTU Keban Agung Power Station
    • PennguardTM lining: installation in new concrete chimney, on concrete shell directly ( New Chimney Design)
    • Flue gas treatment: no FGD
    • Flue gas: unscrubbed 130°C

  • East Bend Generating Station

    East Bend Generating Station
    • PennguardTM lining: installation in existing chimney with free standing brick liner
    • Flue gas treatment: wet FGD
    • Flue gas: desulfurized, non-reheated 52°C (wet stack)

  • Elektrarna Tusimice II

    Elektrarna Tusimice II
    • PennguardTM lining: installed in existing steel duct between GGH and scrubber (hot side)
    • Flue gas treatment: wet FGD with gas-gas-reheat
    • Flue gas: unscrubbed 130°C – 140°C

  • Mae Moh PP Unit 4 - 7 Replacement

    Mae Moh PP Unit 4 - 7 Replacement
    • PennguardTM lining: installed in new concrete chimney with one steel flue
    • Flue gas treatment: wet limestone FGD
    • Flue gas: desulfurized, reheated 91ºC, FGD bypass 152ºC

  • Pagbilao Power Plant Extension

    Pagbilao Power Plant Extension
    • PennguardTM lining: installed in new concrete chimney with one steel flue
    • Flue gas treatment: sea water FGD
    • Flue gas: desulfurized, reheated 105ºC, FGD bypass 170ºC

  • Jimah East Power CFPP

    Jimah East Power CFPP
    • PennguardTM lining: installed in new concrete chimney with two steel flues
    • Flue gas treatment: sea water FGD
    • Flue gas: desulfurized, reheated 90ºC, FGD bypass possible

Most recent project report

Opatovice power station

Lignite fired power station renews its flue gas desulphurization system and converts its existing chimney to a PennguardTM lined wet stack
  • Lignite fired power station, 330 MWe and 650MWt
  • Wet limestone FGD
  • 135 m high reinforced concrete chimney with sectional brick flue
  • PennguardTM lining applied directly onto internal surface of the brick flue
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Our latest news

Discover the publications and study reports

STEAG Energy Services releases study on economics of wet stack modifications
It is more and more important for coal fired power stations in Europe to maximize their operational efficiency and minimize their emissions. A study by STEAG shows that under some conditions, eliminating reheat and modifying the chimney for wet stack operation can bring economical and environmental advantages.
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