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Removing H2S and CO2 from a gas mixture including H2S and CO2
Removing H2S and CO2 from a gas mixture including H2S and CO2
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机译:从包括H2S和CO2的混合气体中去除H2S和CO2
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摘要
Removing H2S and CO2 from a gas mixture comprises contacting the gas mixture in absorber (2) at elevated pressure with liquid absorbent, removing purified gas and loaded absorbent from the absorber (2), flashing the loaded absorbent to produce a first off-gas stream and a partly regenerated absorbent, regenerating in regenerator (15) a part of the partly regenerated absorbent to produce a second off-gas stream and a regenerated absorbent, introducing regenerated absorbent into the upper part of the absorber (2), introducing the remaining partly regenerated absorbent into the absorber (2) at an intermediate level, and contacting the first off-gas stream and/or the second off-gas stream in contactor (20) with an aqueous solution containing an oxidizing reactant to produce purified gas and an aqueous solution containing reduced reactant and elemental sulphur. IMAGE
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