Low Energy CO2 Capture Enabled by Biocatalyst Delivery System

摘要: Abstract This work presents research and development progress to improve biocatalysts, solvents, system integration reduce the cost of CO2 capture from flue gas. Laboratory data field demonstration illustrate potential biocatalyst-enhanced coal generated gas using non-volatile alkali salt solutions. The first generation biocatalyst (coated packing) demonstrated 6 7-fold enhancement in volumetric average mass transfer coefficient at 40 °C with 3460 hours on 80% average. 2800 hours operated an aqueous solution 20% K2CO3, final 660 hours a new higher capacity alkaline (AKM24). Lessons learned delivery are summarized. A second (biocatalyst microparticles) is introduced that shows greater for rate laboratory tests. also provides lower method addition replacement on-stream. Preliminary modeling estimates show total equivalent less than 220 kWh/t (including compression 150 bar) two possible process configurations. analysis demonstrates more 30% reduction costs relative NETL Case 12, version 2 (30% MEA 75 psig cross over steam, bituminous power plant).