Title:
PROCESS FOR THE CAPTURE OF CARBON DIOXIDE
Document Type and Number:
WIPO Patent Application WO/2010/049739
Kind Code:
A3
Abstract:
The invention provides a method for the capture of carbon dioxide gas which comprises contacting the carbon dioxide with at least one acid or a salt thereof, wherein said acid has a pKa value in the range of from 0 to 14, and said acid does not include an amino group. The at least one acid or a salt thereof may be in a solid or liquid form, but preferably comprises an aqueous solution. The acid may be inorganic or organic. Preferred acids have pKa values in the range from 4 to 13. Suitable organic acids may comprise aliphatic, carbocyclic or heterocyclic acids and mono- or poly-acids. Preferably, the acid is present as a salt. The method offers a convenient and simple process which uses inexpensive consumables which are preferably largely biocompatible and renewable, and thereby offers significant advantages over the methods of the prior art.
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Inventors:
RAYNER CHRISTOPHER MARK (GB)
RAYNEL GUILLAUME ROBERT JEAN-FRANCOIS (GB)
BALA SHASHI (GB)
RAYNEL GUILLAUME ROBERT JEAN-FRANCOIS (GB)
BALA SHASHI (GB)
Application Number:
PCT/GB2009/051470
Publication Date:
June 24, 2010
Filing Date:
October 31, 2009
Export Citation:
Assignee:
UNIV LEEDS (GB)
RAYNER CHRISTOPHER MARK (GB)
RAYNEL GUILLAUME ROBERT JEAN-FRANCOIS (GB)
BALA SHASHI (GB)
RAYNER CHRISTOPHER MARK (GB)
RAYNEL GUILLAUME ROBERT JEAN-FRANCOIS (GB)
BALA SHASHI (GB)
International Classes:
B01D53/62
Foreign References:
| GB786669A | 1957-11-20 | |||
| FR2914301A1 | 2008-10-03 | |||
| GB1330604A | 1973-09-19 | |||
| US3037844A | 1962-06-05 | |||
| GB1091261A | 1967-11-15 |
Attorney, Agent or Firm:
HARRISON GODDARD FOOTE (Belgrave Street, Leeds Yorkshire LS2 8DD, GB)
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