发明申请
- 专利标题: ENZYME ENHANCED CO2 CAPTURE AND DESORPTION PROCESSES
- 专利标题(中): ENZYME增强二氧化碳捕获和解吸过程
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申请号: US13503808申请日: 2011-10-28
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公开(公告)号: US20130203155A1公开(公告)日: 2013-08-08
- 发明人: Nathalie J.M.C. Penders , Peter W.J. Derks , Geert F. Versteeg , Sylvie Fradette
- 申请人: Nathalie J.M.C. Penders , Peter W.J. Derks , Geert F. Versteeg , Sylvie Fradette
- 申请人地址: CA QC Quebec
- 专利权人: CO2 SOLUTIONS INC.
- 当前专利权人: CO2 SOLUTIONS INC.
- 当前专利权人地址: CA QC Quebec
- 国际申请: PCT/CA11/01210 WO 20111028
- 主分类号: B01D53/84
- IPC分类号: B01D53/84 ; C12F3/02
摘要:
An enzyme-catalyzed desorption process for releasing CO2 gas from an ion-rich solution containing bicarbonate ions includes providing carbonic anhydrase in the ion-rich solution such that in a desorption unit the carbonic anhydrase is allowed to flow with the ion-rich solution while promoting conversion of the bicarbonate ions into CO2 gas and generating an ion-depleted solution and releasing the CO2 gas and the ion-depleted solution from the desorption unit. A CO2 capture process includes contacting a CO2-containing gas with a solution in an absorption unit, to convert CO2 into ions; feeding an ion-rich solution to a desorption unit wherein carbonic anhydrase is present within the ion-rich solution to generate an ion-depleted solution and, preferably, recycling the ion-depleted solution. Methods of decreasing the CO2 desorption temperature in a desorption unit, decreasing the CO2 desorption reactor size, and decreasing the CO2 desorption energy input in a desorption unit, are also described.