发明名称 |
MULTI-BED SELECTIVE HYDROGENATION OF ACETYLENES |
摘要 |
Compensation for catalyst activity decline in multi-bed selective hydrogenation of acetylenes in the presence of olefins by providing inter-bed heating so that the product from the first bed is heated before it is fed to the second bed, and the temperature at which the product from the first bed is fed to the second bed is increased as the catalyst activity declines. In a modification, when the catalyst is fresh, the product from the first bed is cooled before it is fed to the second bed, but, as the catalyst activity declines the temperature at which the product from the first bed is fed to the second bed is increased, so that after a period of use the product from the first bed is heated before it is fed to the second bed.
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申请公布号 |
WO9515365(A1) |
申请公布日期 |
1995.06.08 |
申请号 |
WO1994GB02501 |
申请日期 |
1994.11.14 |
申请人 |
IMPERIAL CHEMICAL INDUSTRIES PLC;CREWDSON, BERNARD, JOHN;HANCOCK, FREDERICK, ERNEST |
发明人 |
CREWDSON, BERNARD, JOHN;HANCOCK, FREDERICK, ERNEST |
分类号 |
C07C5/08;C07C11/24;C10G45/32;C10G70/02;(IPC1-7):C10G70/02 |
主分类号 |
C07C5/08 |
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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