发明名称 METHOD FOR REMOVING SULFUR-CONTAINING CONTAMINANTS, AROMATICS AND HYDROCARBONS FROM GAS
摘要 <p>The invention relates to a method for removing sulfur-containing contaminants in the form of mercaptans and H2S from a hydrocarbon gas, which may also contain CO2 and higher aliphatic and aromatic hydrocarbons, and recovering elemental sulfur, wherein in a first absorption step the sulfur-containing contaminants are removed from the gas, to form on the one hand a purified gas stream and on the other hand a sour gas, which sour gas is hydrogenated in order to convert the greater part of the mercaptans to H2S, whereafter the hydrogenated sour gas is fed to a second absorption stage in which the sour gas is separated into an H2S-enriched first gas stream, which is fed to a Claus plant, followed by a selective oxidation step of H2S to elemental sulfur in the tail gas, and an H2S-reduced second gas stream, which second gas stream is combusted.</p>
申请公布号 WO1997026069(A1) 申请公布日期 1997.07.24
申请号 NL1997000018 申请日期 1997.01.20
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