Carbon Capture Costs: FEED & pre-FEED Cost Reports

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

Analysis sets the design and cost-estimating basis for evaluating pulp and board mills with and without CCS. Two base cases are considered: a market pulp mill and an integrated pulp and board mill. Six CCS cases are evaluated, capturing CO₂ from the recovery boiler, multi-fuel boiler, lime kiln, or their combinations. The mills are assumed to be energy independent, with black liquor and bark burned to produce steam and electricity, and excess electricity exported to the grid. The CO₂ capture system uses post-combustion MEA technology with a 90% capture rate, and if on-site electricity is insufficient, an auxiliary boiler firing forest residues will supply the additional energy. Capture of CO2 in Kraft, Multi-fuel Boilers & Lime Kiln

Bechtel National Inc., with the Electric Power Research Institute, is conducting a FEED study to retrofit Panda Power Funds’ 758 MWe natural gas combined cycle plant in Sherman, Texas, with a post-combustion CO₂ capture system. Using an open-access design and a conventional amine absorber-stripper system with a non-proprietary solvent such as MEA, the project targets CO₂ capture for enhanced oil recovery.