| 摘要 |
<p>Disclosed is an improved acid gas physical absorption process of the kind in which a feedstock gas containing the acid components is contacted with a solvent, preferably a polyethylene glycoldimethylether, at relatively low temperature and relatively high pressure to absorb the acid gas components thereof. The solvent, after enriching, is regenerated by stripping the acid gas components therefrom by applying heat energy, preferably steam as a stripping gas at relatively high temperature and relatively low pressure. In the improved process, a bottom stream is withdrawn from the stripping tower (24) and it is flashed at a relatively low pressure, then compressed in compressor (33) and reintroduced into the stripper tower (24) at a lower portion thereof to serve as part of the stripping gas. The improved process thus reduces requirements for utility steam.</p> |
