Hydrogen sulfide absorption
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Gas composition: H2S, CO2; washing pressure: 0.1–0.2 MPa. MDEA is intended to be used for the selective absorption of hydrogen sulfide. How many trays should be used in the absorption tower? If any expert has practical experience in this area, please feel free to share your insights. 88% 12%
I have seen gas desulfurization in refineries, at levels 21 to 17; I have also seen the absorption of sulfur-containing exhaust gases in oil refineries, at levels 15 to 25.
Friend, where are you from? I think I’d like to find friends in this field to learn from them; I’m very interested in understanding the design principles related to MDEA absorption towers for high-concentration hydrogen sulfide. Could you give me some advice?
My working conditions are a bit special. The hydrogen sulfide content in the gas is particularly high, at 88% (by volume), with the remaining 12% being carbon dioxide. The idea is to selectively absorb hydrogen sulfide through MDEA while removing carbon dioxide, with the regenerated hydrogen sulfide having a purity of over 99%. Experts with experience in this area are encouraged to share their knowledge; there are rewards available
This post was last edited by Eliminate you on 2019-8-11 at 18:46. I’ve never seen the need to purify hydrogen sulfide. . . . .
Desulfurization first, then regeneration (hydrogen sulfide generation)
I understand the principle, but I don’t know how to do it so that the hydrogen sulfide produced contains as little carbon dioxide as possible