发明名称 |
Reducing temperature differences within the regenerator of an oxygenate to olefin process |
摘要 |
The present invention provides a process for making an olefin product from an oxygenate feedstock which comprises: a) contacting the feedstock in a reaction zone with a catalyst comprising i) a molecular sieve having defined pore openings and ii) a CO oxidation metal, under conditions effective to convert the feedstock into an olefin product stream comprising C<SUB>2</SUB>-C<SUB>3 </SUB>olefins and to form carbonaceous deposits on the catalyst so as to provide a carbon-containing catalyst; b) contacting at least a portion of the carbon-containing catalyst with a regeneration medium comprising oxygen in a regeneration zone comprising a fluid bed regenerator having a dense fluid phase and a dilute fluid phase under conditions effective to obtain a regenerated catalyst portion, wherein the difference between the temperature of the dilute phase and the temperature of the dense phase is no greater than 100° C.; c) introducing said regenerated catalyst portion into said reaction zone; and d) repeating steps a)-c).
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申请公布号 |
US7053260(B2) |
申请公布日期 |
2006.05.30 |
申请号 |
US20020170939 |
申请日期 |
2002.06.13 |
申请人 |
EXXONMOBIL CHEMICAL PATENTS INC. |
发明人 |
XU TENG;CHISHOLM PAUL N.;VAUGHN STEPHEN NEIL;FUNG SHUN CHONG;KUECHLER KEITH HOLROYD;LATTNER JAMES R.;CLEM KENNETH RAY;MAHER PATRICK J.;DRAEMEL DEAN C. |
分类号 |
C07C1/20;B01J29/90;B01J35/00;B01J38/36;C10G3/00 |
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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