| 发明名称 |
Process for preparing ethylene and/or propylene and an iso-olefin-depleted olefinic product |
| 摘要 |
The present invention provides a process for preparing ethylene and/or propylene and an iso-olefin-depleted olefinic product, comprising the steps of:
a) providing a C5 hydrocarbon-comprising stream, comprising C5 cyclopentene and C5 iso-olefins;b) subjecting the C5 hydrocarbon-comprising stream to an etherification process with methanol and/or ethanol wherein at least part of the C5 iso-olefins are converted with methanol and/or ethanol to an tert-alkyl ether, and retrieving an etherification product stream;c) separating at least part of the etherification product stream into at least an ether-enriched stream and a first iso-olefin-depleted olefinic product;d) converting at least part of the tert-alkyl ether in the ether-enriched stream to ethylene and/or propylene by contacting at least part of the ether-enriched stream with a molecular sieve-comprising catalyst at a temperature in the range of from 350 to 1000° C. and retrieving a second olefinic product comprising ethylene and/or propylene. |
| 申请公布号 |
US8742188(B2) |
申请公布日期 |
2014.06.03 |
| 申请号 |
US201213606269 |
申请日期 |
2012.09.07 |
| 申请人 |
Shell Oil Company |
发明人 |
Chewter Leslie Andrew;Ramesh Rajaram;Sadasivan Vijayakumari Sivakumar;Van Westrenen Jeroen |
| 分类号 |
C07C2/00 |
主分类号 |
C07C2/00 |
| 代理机构 |
|
代理人 |
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| 主权项 |
1. A process for preparing ethylene and/or propylene and an iso-olefin-depleted olefinic product, comprising the steps of:
a) providing a C5 hydrocarbon-comprising stream, comprising C5 cyclopentene and C5 iso-olefins; b) subjecting the C5 hydrocarbon-comprising stream to an etherification process with methanol and/or ethanol wherein at least part of the C5 iso-olefins are converted with methanol and/or ethanol to an tert-alkyl ether, and retrieving an etherification product stream; c) separating at least part of the etherification product stream into at least an ether-enriched stream and a first iso-olefin-depleted olefinic product; d) converting at least part of the tert-alkyl ether in the ether-enriched stream to ethylene and/or propylene by contacting at least part of the ether-enriched stream with a molecular sieve-comprising catalyst at a temperature in the range of from 350 to 1000° C. and retrieving a second olefinic product comprising ethylene and/or propylene.
|
| 地址 |
Houston TX US |
