发明名称 |
Dual pressure catalytic distillation hydrogenation column system for the front end of an ethylene plant |
摘要 |
The charge gas from the thermal cracking of a hydrocarbon feedstock is processed in a front-end catalytic distillation hydrogenation system of an olefins plant to more effectively recover ethylene and propylene product and to process the by-products. The rate of fouling in the system is reduced by employing two columns in the system with the first column operating at a higher pressure and the second column operating at a lower pressure. The hydrogenation as well as fractionation takes place in the first column while the second column is only a fractionator. The temperature of the bottoms from each column is maintained at a temperature less than 200° C. to avoid fouling.
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申请公布号 |
US7045669(B2) |
申请公布日期 |
2006.05.16 |
申请号 |
US20030635763 |
申请日期 |
2003.08.05 |
申请人 |
CATALYTIC DISTILLATION TECHNOLOGIES |
发明人 |
SUMNER CHARLES;HEINEMAN JEFFREY L.;DI BIASE CHRISTOPHER A. |
分类号 |
C07C5/00;C07C7/04;C07C7/163 |
主分类号 |
C07C5/00 |
代理机构 |
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代理人 |
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地址 |
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