Carbon Capture Costs: FEED & pre-FEED Cost Reports

Southern Company Services, with Linde Gas North America, is conducting a FEED study for a commercial-scale CO₂ capture system using Linde-BASF’s advanced aqueous amine technology at an NGCC plant of at least 375 MWe. The project will evaluate Alabama Power’s Plant Barry and Mississippi Power’s Plant Daniel to select the optimal host site, define project requirements, optimize process design, and deliver engineering packages along with a cost and schedule estimate within 15% accuracy. The study will build on prior feasibility work and site-specific testing.

Linde Inc., with Linde Engineering Americas, Linde Engineering Dresden, and Svante Inc., is completing an initial engineering design for a commercial-scale CO₂ capture plant at its steam methane reforming hydrogen facility in Port Arthur, Texas. Using Svante’s VeloxoTherm™ solid adsorbent technology, the system will capture about 1 million tonnes of CO₂ annually at ≥90% efficiency while producing 99.97% pure “blue” hydrogen. The design will include ISBL units for flue gas conditioning and CO₂ purification, OSBL components, and a techno-economic analysis of capture costs and hydrogen production economics.

The CEMEX Balcones Carbon Capture project is a DOE-supported Front-End Engineering Design (FEED) study evaluating commercial-scale deployment of RTI International’s non-aqueous solvent (NAS) technology at the Balcones cement plant in New Braunfels, Texas. The study assessed capture of approximately 2.4 million tonnes of CO₂ per year at roughly 95% capture efficiency from cement kiln flue gas and an associated natural gas–fired boiler, developing an AACE Class 3 cost estimate and detailed engineering design to support future investment decisions. Led by RTI International with KBR as EPC engineering contractor and SLB Capturi as owner’s engineer and technology licensor, the project evaluated integration challenges such as limited cooling water availability, resulting in a hybrid air- and water-cooling configuration. The FEED estimated total project capital costs of about $849 million and annual operating costs of approximately $109 million, providing a techno-economic basis for large-scale cement decarbonization and future project execution planning.