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.