Carbon Capture Costs: FEED & pre-FEED Cost Reports

The Red Trail Energy (RTE) ethanol facility in Richardton, North Dakota, is implementing a CO₂ capture and liquefaction system designed by Trimeric. The system captures CO₂ from fermentation, compresses it to ~350 psig, dehydrates and liquefies it using an ammonia refrigeration loop, and purifies it via distillation to remove oxygen and other gases. The liquid CO₂ can be stored for sale or geologic sequestration. The facility is designed to process 587 tonnes/day (scalable to 675 tonnes/day), with nearly complete CO₂ recovery.

Linde Inc., with Linde Engineering Americas and BASF, is conducting an initial engineering design for a 3,500 tonnes/day CO₂ capture plant using Linde-BASF’s advanced aqueous amine technology at a Linde-owned steam methane reforming facility. The project will define integration options, establish project requirements, optimize process design, and develop engineering, cost, and schedule packages. BASF will provide the technology design, LEA will deliver detailed engineering and constructability assessments, and Linde will lead techno-economic, environmental, and safety analyses in coordination with the SMR plant operators.

CO₂ capture from the SMR flue gas stacks located in Plant 01 and Plant 09 of the facility. Combined flue gases from each of the two sources would be collected and transported by ducts to the carbon capture facility. The design of the capture facility is 2,100 – 2,200 tpd of CO₂, including the CO₂ captured from the SMRs and additional flue gas generated from the steam boiler supplying the CCS unit. The CCS unit is to be designed for a minimum 30% plant turndown, this is to ensure the operation of CCS unit when flue gas from Plant 01 is the only feed to the CCS unit. For the purposes of the study the carbon capture facility design, including flue gas pretreatment and downstream CO₂ compression and dehydration, is provided by licensor. Hatch designed the flue gas transportation from the stacks to the Carbon Capture and Sequestration (CCS) unit battery limit, flue gas pressure boosting and Balance of Plant (BOP) which includes all the utility and offsite systems