| 摘要 |
This invention relates to a process for the removal of carbon dioxide present in gases which includes the step of bringing a carbon dioxide-containing gas into contact with an aqueous solution containing, as an absorbent, at least one amine compound of the general formula (1) RN(CH2CH2OH)2 wherein R represents an alkyl group of 2 to 4 carbon atoms, or an aqueous solution containing both at least one amine compound of the above general formula (1) and at least one other amine compound, as well as a system therefor. This invention can provide a process for the removal of carbon dioxide present in gases by use of an absorbing fluid containing an absorbent having higher CO2-absorbing power and CO2-releasing power and being more advantageous from the viewpoint of energy efficiency, as compared with the conventionally used absorbing fluid. |
