Improvement of Alstom's Chilled Ammonia Process Large Pilot with the Use of Membrane Technology


Technology Centre Mongstad CAP pilot plant
Technology Centre Mongstad CAP pilot plant
Alstom Power, Inc.
Website:  Alstom Power Inc.
Award Number:  FE0026589
Project Duration:  10/01/2015 – 09/30/2016
Total Award Value:  $729,889
DOE Share:  $540,727
Performer Share:  $189,161
Technology Area:  Post-Combustion Capture
Key Technology:  Solvents
Location:  Windsor, Connecticut

Project Description

Alstom Power Inc. (Alstom) has teamed with Technology Centre Mongstad (TCM), the Georgia Institute of Technology, General Electric Power & Water, Purecowater, and ElectroSep Inc. to improve Alstom’s Chilled Ammonia Process (CAP) carbon dioxide (CO2) capture technology using commercially-available membrane technologies to reduce energy and capital costs. Concepts incorporating liquid-liquid reverse osmosis and bipolar electrodialysis membrane technologies will be tested at an existing 15 MWe CAP facility at TCM. Alstom will utilize previous bench-scale results to properly select the membrane technologies. Phase I project objectives are to complete preliminary design and economic analyses for the test program, including four membrane concepts; develop the cost estimate and schedule to modify the existing large-pilot facility at TCM; and complete preliminary techno-economic and technology gap analyses for the CAP technology at the 550-MWe scale.

Projects for the large-scale (equivalent of 10 to +25 MWe) pilot testing of post-combustion CO2 capture technology systems are being conducted in two phases, with a competitive downselect to continue from Phase I into Phase II. This project was selected for Phase I; a Phase II application must be submitted to be considered for the full project.

Project Benefits

The improvement of Alstom’s CAP CO2 capture technology through commercially-available membrane technologies can provide a 20 percent reduction in the cost of electricity compared to the baseline CO2 capture approaches while achieving greater than 90 percent capture with greater than 99.5 percent CO2 purity. The CAP, previously tested at the large pilot size, is expected to be available for demonstration in 2020 and ready for commercial application in 2025.

Contact Information

Federal Project Manager 
Steven Mascaro:
Technology Manager 
Lynn Brickett:
Principal Investigator 
David Muraskin:

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