发明名称 |
Process for increasing the selectivity of a reaction to convert oxygenates to olefins |
摘要 |
Disclosed is a method of making an olefin product from an oxygenate feedstock comprising, contacting the feedstock in a reaction zone containing 15 volume percent or less of a catalyst, preferably a catalyst comprising a silicoaluminophosphate molecular sieve. In order to obtain the desired product content, i.e., an olefin product having a low level of by-products, conversion of the feedstock in the 15 volume percent or less reaction zone should be maintained between 80 wt % and 99 wt % at the conditions effective to convert 100 wt % of the feedstock when the reaction zone contains at least 33 volume percent of the catalyst material.
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申请公布号 |
US6137022(A) |
申请公布日期 |
2000.10.24 |
申请号 |
US19990333278 |
申请日期 |
1999.06.15 |
申请人 |
EXXON CHEMICAL PATENTS INC |
发明人 |
KUECHLER, KEITH H.;SUN, HSIANG-NING;KUECHLER, WILLIAM |
分类号 |
C07C1/20;C07C1/26;C07C1/32;(IPC1-7):C07C1/00 |
主分类号 |
C07C1/20 |
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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