Carbon Capture Costs: FEED & pre-FEED Cost Reports

Dastur International Inc., with Cleveland-Cliffs Inc., is designing a carbon capture system for the 5 mtpa integrated steel plant in Burns Harbor, Indiana, to capture 50–70% of CO₂ emissions from blast furnace gas. The system will combine a gas flow distribution network, a specialized conditioning process, and ION Clean Energy’s solvent-based capture technology with 90–98% efficiency, with water-gas shift reactors enabling higher capture rates. Dastur will lead overall plant integration and engineering, while ION designs the capture island and Dastur Energy optimizes design and energy performance.

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 8-stage compression to 1,500 psig

Electric Power Research Institute (EPRI), with Fluor Corporation and California Resources Corporation (CRC), conducted a FEED study to assess the feasibility of retrofitting Fluor’s solvent for post-combustion CO₂ capture at the 550 MW Elk Hills NGCC power plant. The system aims to capture approximately 4,000 tonnes of CO₂ per day (75% of total emissions, or 90% of an 83% slipstream), with the captured CO₂ intended for enhanced oil recovery. Deliverables include the full engineering design package—such as process flow diagrams, equipment datasheets, and capital cost estimates—optimized for site-specific performance, operations, and construction practices.