| 发明名称 |
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| 摘要 |
<p>Removing hydrogen sulphide from a gas mixture comprises contacting in absorber (3) the gas mixture with absorbent to obtain loaded absorbent; introducing loaded absorbent into separation vessel (13) at a reduced pressure to obtain flash-off gas and partially regenerated absorbent; contacting in absorber (19) flash-off gas with absorbent to obtain a lean gas and loaded absorbent; regenerating loaded absorbent and partially regenerated absorbent to regenerator (30) to obtain lean absorbent and regenerator off-gas; supplying the regenerator off-gas to sulphur recovery plant (49) to obtain elemental sulphur and off-gas which includes sulphur dioxide; treating the plant off-gas in convertor (55) to convert sulphur dioxide to hydrogen sulphide to obtain reduced off-gas; mixing the lean gas from absorber (19) with the plant off-gas or with the reduced plant off-gas; and contacting the mixture of reduced off-gas and lean gas in contactor (61) with absorbent to obtain a substantially hydrogen sulphide free off-gas and loaded absorbent which is regenerated in the regenerator (30).</p> |
| 申请公布号 |
JP2948846(B2) |
申请公布日期 |
1999.09.13 |
| 申请号 |
JP19890330971 |
申请日期 |
1989.12.20 |
| 申请人 |
SHERU INTERN RISAACHI MAACHATSUPII BV |
发明人 |
JON GURAHAMU KURISUTEI |
| 分类号 |
B01D53/14;B01D53/34;B01D53/52;B01D53/77;C01B17/04;C10L3/10;(IPC1-7):B01D53/52 |
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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