公开(公告)号：US20180221818A1

公开(公告)日：2018-08-09

申请号：US15506701

申请日：2015-08-27

Applicant: CO2 SOLUTIONS INC.

Inventor： Normand VOYER ,  Richard DAIGLE ,  Éric MADORE ,  Sylvie FRADETTE

IPC: B01D53/84 ,  B01D53/14 ,  B01D53/86

CPC classification number: B01D53/84 ,  B01D53/1425 ,  B01D53/1475 ,  B01D53/62 ,  B01D53/86 ,  B01D53/8671 ,  B01D2251/95 ,  B01D2252/10 ,  B01D2252/20421 ,  B01D2252/20426 ,  B01D2252/20431 ,  B01D2252/20484 ,  B01D2252/20489 ,  B01D2252/20494 ,  B01D2252/602 ,  B01D2255/804 ,  B01D2257/504 ,  B01D2258/0283 ,  Y02A50/2358 ,  Y02C10/02 ,  Y02C10/04 ,  Y02C10/06

Abstract: Methods for enzyme-enhanced CO2 capture include contacting a CO2-containing gas with an aqueous absorption solution at process conditions—such as high temperature, high pH, and/or using carbonate-based solutions—in the presence of Thermovibrio ammonificans carbonic anhydrase (TACA) or functional derivative thereof for catalyzing the hydration reaction of CO2 into bicarbonate and hydrogen ions and/or catalyzing the desorption reaction to produce a CO2 gas. The TACA may be provided to flow with the solution to cycle through a CO2 capture system that includes an absorber and a stripper.

公开(公告)号：US20190136220A1

公开(公告)日：2019-05-09

申请号：US15757301

申请日：2016-09-02

Applicant: CO2 SOLUTIONS INC.

Inventor： Normand VOYER ,  Richard DAIGLE ,  Éric MADORE ,  Sylvie FRADETTE

IPC: C12N9/88 ,  B01D53/62 ,  B01D53/14 ,  B01D53/84 ,  C12N15/74

CPC classification number: C12N9/88 ,  B01D53/1475 ,  B01D53/1493 ,  B01D53/62 ,  B01D53/84 ,  B01D2252/204 ,  B01D2252/205 ,  B01D2257/504 ,  C12N15/74 ,  C12P3/00 ,  C12Y402/01001 ,  Y02A50/2358 ,  Y02C10/02 ,  Y02C10/04 ,  Y02C10/06 ,  Y02P20/152 ,  Y02P20/59

Abstract: The present description relates to recombinant or engineered carbonic anhydrase polypeptides, variants, and functional derivatives thereof, having improved properties that make them advantageous for use in CO2 capture operations (e.g., CO2 capture solvents, alkaline pH, and/or elevated temperatures), as well as polynucleotides and vectors encoding same. The present description also relates to methods, processes and systems for CO2 capture which make use of the recombinant or engineered carbonic anhydrase polypeptides, variants, and functional derivatives thereof.