| abstract |
Disclosed a kind of for from containing CO at this 2 Gas flow in remove CO 2 Method, wherein should contain CO 2 Gas flow contact with a kind of water-based ammonium salt solution. This water-based ammonium salt solution comprises that the ammonia of 0.1%-40%w/v, v/v/w/w and a kind of concentration range are the soluble salt of 0.01%-10%wt or v/v or w/v, the cation that this soluble salt has is the group that is selected from IA, IIA, IIIA and IVA family metal, is anion, the NO that is selected from VIIA family element together with counter anion 3 - 、SO 4 2- 、OH - 、PO 4 3- And HCO 3 - Group. The present invention also expands to a kind of CO that comprises water-based ammonium salt solution and above soluble salt 2 Trapping solvent. |