| 摘要 |
The invention provides a method for the capture of carbon dioxide gas which comprises contacting the carbon dioxide with a composition comprising at least two compounds selected from basic compounds, at least one of which is an organic compound and at least one of which is an inorganic salt. The composition may be in a solid or liquid form, but preferably comprises an aqueous solution. The inorganic salts preferably comprise alkali metal salts of phosphoric acid. Typical basic organic compounds may comprise amino compounds, or salts obtained by treatment of weakly acidic organic compounds with bases. Certain embodiments of the invention additionally include the step of releasing the captured carbon dioxide from said composition. 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. |
