| 摘要 |
<p>CO2 and, where present, H2S are removed from natural gases which contain CO2 or CO2 and H2S, by a process in which the said natural gases are treated, in an absorption stage at from 40 to 100.degree.C, with an aqueous absorption liquid containing from 20 to 70% by weight of methyldiethanolamine. The treated natural gases are taken off at the top of the absorption stage. The aqueous absorption liquid laden with CO2 and, where present, H2S is taken off at the bottom of the absorption stage and then regenerated in one or more flash stages without using any stripping column. Finally the regenerated absorption liquid is recycled to the absorption stage.</p> |
