发明名称 |
Removal of sour components from a gas stream. |
摘要 |
<p>Process for the removal of sour components, such as HCN and H2S, from a gas stream comprising the following steps: a) contacting in the presence of a base in a first contactor (1) the gas stream with a first aqueous solution containing dissolved sulphur in order to obtain a purified gas mixture and a second aqueous solution containing reaction products of the base and the sour components; b) cooling the purified gas mixture in cooler (26); c) contacting in a second contactor (36) the purified gas mixture with an aqueous reactant solution containing an oxidant to obtain a further purified gas mixture and an aqueous solution containing elemental sulphur and reduced oxidant; d) oxidizing at least a part of the reduced oxidant in the aqueous solution obtained in step c) in regenerator (45) and separating the aqueous solution in a regenerated aqueous reactant solution and a sulphur-containing stream; e) passing the regenerated aqueous reactant solution to the second contactor (36) for use as aqueous reactant solution; and f) separating in separator (55) the sulphur-containing stream into a sulphur-rich stream and an aqueous waste stream containing dissolved sulphur. u</p> |
申请公布号 |
EP0304989(A1) |
申请公布日期 |
1989.03.01 |
申请号 |
EP19880201737 |
申请日期 |
1988.08.15 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
BOWMAN, DAVID FREDERICK |
分类号 |
B01D53/48;B01D53/14;B01D53/52;B01D53/54;C10K1/10;C10K1/20 |
主分类号 |
B01D53/48 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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