Carbon Capture Costs: FEED & pre-FEED Cost Reports

Prairie State Generating Company is conducting a FEED study for a carbon capture facility on its 816 MWe Unit #2 in Illinois, using Mitsubishi Heavy Industries’ KM CDR Process™ with KS-21™ solvent. Designed to treat all flue gas from the unit, it would be the world’s largest post-combustion capture plant, compressing CO₂ for off-site sequestration. The project will leverage engineering support from Kiewit, Sargent & Lundy, and MHI.

Membrane Technology & Research Inc., with Sargent & Lundy and CEMEX, is designing a full-scale Polaris membrane CO₂ capture system for the CEMEX Balcones cement plant in New Braunfels, Texas, targeting about 1 million tonnes of CO₂ capture annually. The study will develop the design basis, process design, cost estimates, permitting and safety reviews, constructability assessment, and a techno-economic analysis. Sargent & Lundy will lead the design work, while CEMEX will provide site-specific data for integration.

The University of Illinois at Urbana-Champaign is leading a FEED study for a commercial-scale CO₂ capture system at Holcim’s Ste. Genevieve cement plant in Missouri, targeting 95% capture efficiency. Using Air Liquide’s Cryocap™ technology, which combines PSA pre-concentration with cryogenic purification, the system will produce high-purity CO₂ for storage near the Prairie State Generating Company in Illinois. UIUC will manage the project and perform economic and impact analyses, while Air Liquide, Kiewit, Visage Energy, and Holcim will contribute to design, safety, environmental, and site integration efforts.