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).
申请公布号
AU2002360559(A1)
申请公布日期
2003.07.30
申请号
AU20020360559
申请日期
2002.12.12
申请人
EXXONMOBIL CHEMICAL PATENTS INC.
发明人
TENG XU;PAUL, N. CHISHOLM;STEPHEN, N. VAUGHN;SHUN, C. FUNG;KEITH, H. KUECHLER;JAMES, R. LATTNER;KENNETH, R. CLEM;PATRICK, J. MAHER;DEAN, C. DRAEMEL