发明名称 |
HYDROGEN SULFIDE REMOVAL PROCESS |
摘要 |
Hydrogen sulfide is removed from gas streams by reaction with sulfur dioxide to produce sulfur. The reaction is effected in a reaction medium comprising a non-aqueous Lewis base with a pKb value of about 6 to about 11. The reaction medium prossesses a specific combination of properties: a) absorbs sulfur dioxide and reacts chemically therewith to form a reaction product; b) absorbs hydrogen sulfide; c) removes the hydrogen sulfide from the gas stream through contact of the gas stream with the reaction medium in the presence of free sulfur dioxide, and/or the reaction product; d) acts as a catalyst for the overall reaction of the hydrogen sulfide with sulfur dioxide to produce sulfur; and e) has the capacity to absorb sulfur dioxide in sufficient quantity to remove substantially all the hydrogen sulfide from the gas stream, notwithstanding short term variations in the stoichiometric balance between the hydrogen sulfide and the sulfur dioxide in the reaction medium.
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申请公布号 |
CA2304590(A1) |
申请公布日期 |
1999.05.20 |
申请号 |
CA19982304590 |
申请日期 |
1998.11.12 |
申请人 |
APOLLO ENVIRONMENTAL SYSTEMS CORP. |
发明人 |
SMITH, JAMES W.;WALTON, PETER S.;ELLENOR, DAVID T.R.;MEFFE, SILVANO |
分类号 |
B01D5/00;B01D53/14;B01D53/52;C01B17/05;C10L3/10;(IPC1-7):C10L3/10 |
主分类号 |
B01D5/00 |
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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