发明名称 |
Process for cleaning a gas containing H2S and CO2. |
摘要 |
<p>Purificn. of a gas contg. combustible components, CO2 and S cpds. (esp. H2S) is carried out by scrubbing with a scrubber soln. which is regenerated by expansion, stripping and hot regeneration, H2S-rich off-gas from the hot regeneration being processed to elementary S and an H2S-contg. residual gas which is contacted with scrubber soln. The novelty comprises (i) partially combusting the H2S-rich off-gas with oxygen(-contg. gas) or air in a combustion chamber to produce a gas mixt. at 1000-2000 deg.C contg. at least 30 mol.% of the introduced sulphur as elementary S and contg. H2S and SO2 in the molar ratio 4-1:1; (ii) cooling the gas mixt. to below the dew point of elementary S and separating the condensed S; (iii) heating the gas mixt. to 180-200 deg.C and subjecting it directly to catalytic hydrogenation and/or hydrolysis to convert residual SO2 into H2S; and (iv) contacting (part of) the treated gas, as H2S-contg. residual gas, with scrubber soln. -</p> |
申请公布号 |
EP0455285(B1) |
申请公布日期 |
1993.10.27 |
申请号 |
EP19910200822 |
申请日期 |
1991.04.09 |
申请人 |
METALLGESELLSCHAFT AKTIENGESELLSCHAFT |
发明人 |
KRIEBEL, MANFRED, DR.;GRUENEWALD, GERHARD;FISCHER, HERBERT |
分类号 |
B01D53/50;B01D53/14;B01D53/52;B01D53/77;C01B17/04;C10L3/10;(IPC1-7):B01D53/14 |
主分类号 |
B01D53/50 |
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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