Carbon Capture Costs: FEED & pre-FEED Cost Reports

Electricore Inc., with Svante Inc. and Kiewit Engineering Group Inc., is conducting a pre-FEED study for a 1 million tonnes/year VeloxoTherm™ carbon capture system at LafargeHolcim’s cement plant in Florence, Colorado. The system will capture CO₂ from both kiln flue gas (14% concentration) and a natural gas-fired steam generator (8.5% concentration), with storage options including saline formations, depleted oil reservoirs, and the Sheep Mountain CO₂ reservoir. The study will also evaluate expansion to 2 million tonnes/year and target DOE’s $30/tonne capture cost goal, progressing from design selection (FEL-1) to pre-FEED engineering (FEL-2).

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.

This report summarizes Trimeric’s Phase II work under the SSEB ECO2S project in Kemper County, Mississippi, focused on Task 7 – Infrastructure Development. Trimeric evaluated CO₂ compression and dehydration costs, compared pumping versus compression for dense phase CO₂, and developed pipeline transport cost estimates. Using experience from past projects, screening-level designs and cost estimates were prepared for a nominal 1 MTPY case and scaled to site-specific conditions. Results showed that increasing discharge pressure modestly raises costs, with pumping offering slight savings and operational flexibility but added complexity. Pipeline costs were estimated using NPC benchmarks, while compression and dehydration costs were scaled for Plant Daniel, Plant Miller, and Kemper. Overall, capital costs were roughly three times equipment costs, with electricity for compression as the dominant operating expense. The costs are associated with Six-stage compression directly to 2,050 psig