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US 7,740,689 B2Granted
CO2 absorption solution
AssigneeCO2 Solution Inc.
InventorsSylvie Fradette, Olivera Ceperkovic
Life of this patent
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Abstract
Disclosed is a formulation for the absorption of CO2, which comprises water, at least one CO2 absorption compound and a carbonic anhydrase as an activator to enhance the absorption capacity of the CO2 absorption compound. The invention also concerns the use of carbonic anhydrase, in a CO2 absorption solution to increase the CO2 absorption rate of such solution.
Claims12
A formulation for the absorption of CO2, comprising:
- water and
- at least one CO2 absorption compound selected from the group consisting of N-methyldiethanolamine (MDEA), piperazine (PZ) and 2-(2-aminoethylamino)ethanol (AEE), forming a solution;
- and
- carbonic anhydrase as an activator to enhance the absorption of the solution.
1 more element
A method to activate a CO2 absorption solution, which comprises:
- contacting gaseous CO2 with an aqueous CO2 absorption solution comprising at least one CO2 absorption compound selected from the group consisting of N-methyldiethanolamine (MDEA), piperazine (PZ) and 2-(2-aminoethylamino)ethanol (AEE);
- and
- adding carbonic anhydrase to said CO2 absorption solution while it is contacted with said gaseous CO2.
Dependencies are inferred from the claim text.