Carbonic anhydrase enhanced reaction methods and formulations
Disclosed is a formulation for the absorption of CO 2 , which comprises water, at least one CO 2 absorption compound and a carbonic anhydrase as an activator to enhance the absorption capacity of the CO 2 absorption compound. The invention also concerns the use of carbonic anhydrase, in a CO 2 absorption solution to increase the CO 2 absorption rate of such solution.
1. A formulation for catalysis of the reaction CO 2 +H 2 O⇄HCO 3 − +H + , comprising water and at least one reaction compound selected from N-methyldiethanolamine (MDEA), piperazine (PZ), 2-(2-aminoethylamino)ethanol (AEE), and 2-amino-2-methyl-1-propanol (AMP), the water and the at least one reaction compound forming a solution; and carbonic anhydrase to catalyze the reaction.
2. The formulation of claim 1 , wherein the at least one reaction compound comprises MDEA.
3. The formulation of claim 1 , wherein the at least one reaction compound comprises PZ.
4. The formulation of claim 1 , wherein the at least one reaction compound comprises AEE.
5. The formulation of claim 1 , wherein the at least one reaction compound comprises AMP.
6. The formulation of claim 1 , wherein the carbonic anhydrase is supported by a support.
7. The formulation of claim 1 , wherein the carbonic anhydrase is immobilised on a support.
8. The formulation of claim 1 , wherein the carbonic anhydrase is a component of the solution.
9. The formulation of claim 1 , wherein the reaction is a forward reaction for absorption of CO 2 from a CO 2 containing gas into the solution.
10. A method for catalysis of the reaction CO 2 +H 2 O⇄HCO 3 − +H + , comprising:
providing a formulation in a reactor, the formulation comprising water, at least one reaction compound selected from N-methyldiethanolamine (MDEA), piperazine (PZ), 2-(2-aminoethylamino)ethanol (AEE), and 2-amino-2-methyl-1-propanol (AMP), the water and the at least one reaction compound forming a solution, and carbonic anhydrase; and
operating the reactor such that the carbonic anhydrase catalyzes the reaction relative to the same formulation without the carbonic anhydrase.
11. The method of claim 10 , wherein the at least one reaction compound comprises MDEA.
12. The method of claim 10 , wherein the at least one reaction compound comprises PZ.
13. The method of claim 10 , wherein the at least one reaction compound comprises AEE.
14. The method of claim 10 , wherein the at least one reaction compound comprises AMP.
15. The method of claim 10 , wherein the carbonic anhydrase is supported by a support.
16. The method of claim 10 , wherein the carbonic anhydrase is immobilised on a support.
17. The method of claim 10 , wherein the carbonic anhydrase is a component of the solution.
18. The method of claim 10 , wherein the reactor is a packed reactor.
19. The method of claim 18 , wherein the carbonic anhydrase is immobilised on a packing within the packed reactor.
20. The method of claim 18 , wherein the carbonic anhydrase is a component of the solution.
21. The method of claim 10 , wherein the reaction is a forward reaction for absorption of CO 2 from a CO 2 containing gas into the solution.
22. A method for catalysis of the reaction CO 2 +H 2 O⇄HCO 3 − +H + , comprising:
providing a formulation in a reactor, the formulation comprising water, at least one secondary or tertiary alkanolamine reaction compound, the water and the at least one secondary or tertiary alkanolamine reaction compound forming a solution, and carbonic anhydrase; and
operating the reactor such that the carbonic anhydrase catalyzes the reaction relative to the same formulation without the carbonic anhydrase.
23. The method of claim 22 , wherein the carbonic anhydrase is supported by a support.
24. The method of claim 22 , wherein the carbonic anhydrase is immobilised on a support.
25. The method of claim 22 , wherein the carbonic anhydrase is a component of the solution.
26. The method of claim 22 , wherein the reactor is a packed reactor.
27. The method of claim 26 , wherein the carbonic anhydrase is immobilised on a packing within the packed reactor.
28. The method of claim 26 , wherein the carbonic anhydrase is a component of the solution.
29. The method of claim 22 , wherein the reaction is a forward reaction for absorption of CO 2 from a CO 2 containing gas into the solution.