发明名称 |
VERFAHREN ZUR ABTRENNUNG VON SCHWEFELVERBINDUNGEN |
摘要 |
<p>A method of separating sulphur compounds out of a gas containing carbon dioxide and hydrogen sulphide, in a gas washing system, said gas being obtained by gasification of spent cellulose liquor. According to the invention the gas washing system has a gas-liquid contact zone (5) operating at a pressure exceeding atmospheric pressure as well as a regeneration zone (8) operating at a pressure substantially less than the pressure in the gas-liquid contact zone (5). The carbon dioxide partial pressure in the gas prior to entering the gas-liquid contact zone exceeds 0.2 atm. Furthermore the gas comes into contact with an alkaline absorption liquid in the gas-liquid contact zone, and alkaline liquid containing alkali hydrogen sulphide is withdrawn from the gas-liquid contact zone and transferred to the regeneration zone, in which zone hydrogen sulphide is expelled from said liquid containing alkali hydrogen sulphide and withdrawn in the form of a gas.</p> |
申请公布号 |
DE69412079(T2) |
申请公布日期 |
1999.01.07 |
申请号 |
DE1994612079T |
申请日期 |
1994.03.04 |
申请人 |
KVAERNER PULPING AB, KARLSTAD, SE |
发明人 |
STIGSSON, LARS, S-663 02 HAMMAROE, SE |
分类号 |
B01D53/14;B01D53/52;B01D53/77;C01B17/16;D21C11/00;D21C11/06;D21C11/12;(IPC1-7):D21C11/12;B01D53/34 |
主分类号 |
B01D53/14 |
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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