发明名称 |
PROCESS FOR PREPARING ETHYLENE AND/OR PROPYLENE AND AN ISO-OLEFIN-DEPLETED C4 OLEFINIC PRODUCT |
摘要 |
The present invention provides a process for preparing ethylene and/or propylene and an iso-olefin-depleted C4 olefinic product, comprising the steps of: a) providing a C4 hydrocarbon stream, comprising normal olefins and iso-olefins; b) subjecting the C4 hydrocarbon stream to an etherification process with methanol and/or ethanol wherein at least part of the 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 C4 olefinic product; d) converting at least part of the tert-alkyl ether in the ether-enriched stream to ethylene and/or propylene by contacting 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.
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申请公布号 |
US2013237714(A1) |
申请公布日期 |
2013.09.12 |
申请号 |
US201213606211 |
申请日期 |
2012.09.07 |
申请人 |
SADASIVAN VIJAYAKUMARI SIVAKUMAR;VAN WESTRENEN JEROEN;SHELL OIL COMPANY |
发明人 |
SADASIVAN VIJAYAKUMARI SIVAKUMAR;VAN WESTRENEN JEROEN |
分类号 |
C07C1/22;C07C29/48;C07C41/06;C07C45/28;C07D301/03 |
主分类号 |
C07C1/22 |
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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