Patent ID: 8329460

Claim:
An enzymatic bioreactor for treatment of a CO 2 -containing gas with carbonic anhydrase, the bioreactor comprising: a reaction chamber for accommodating an absorption reaction of CO 2 in an aqueous solution containing the carbonic anhydrase, the carbonic anhydrase catalyzing the absorption reaction, thereby producing a CO 2 -depleted gas stream and a liquid stream including hydrogen and bicarbonate ions, the carbonic anhydrase flowing through the reaction chamber; a liquid inlet in fluid communication with the reaction chamber for feeding the aqueous solution containing carbonic anhydrase into the reaction chamber; a gas inlet in fluid communication with the reaction chamber for feeding the CO 2 -containing gas into the reaction chamber; a liquid outlet in fluid communication with the reaction chamber for releasing the liquid stream, the liquid stream comprising the carbonic anhydrase; a gas outlet in fluid communication with the reaction chamber to release the CO 2 -depleted gas stream; and a unit provided outside the reaction chamber for receiving the liquid stream from the liquid outlet and for removing the carbonic anhydrase from the liquid stream.