| 摘要 |
Sour gas streams containing significant quantities of contaminating H2S and aromatic hydrocarbons are contacted with an aqueous absorbent to remove the contaminants and produce a sweet gas, the contaminants are desorbed and contacted with a selective absorbent which absorbs the aromatic hydrocarbons and rejects the H2S, and the aromatic hydrocarbons are recovered. If CO2 is also present in the sour gas, provision is also made for its removal from the gas stream.
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