REJUVENATING SAPO AND/OR ALPO MOLECULAR SIEVE WITH ANHYDROUS LIQUID OR VAPOR
摘要
<p>This invention is to a method of rejuvenating a molecular sieve. The method includes contacting a molecular sieve having a methanol uptake index of less than 1, or a catalyst containing molecular sieve having a methanol uptake index of less than 1, with anhydrous liquid or vapor until the methanol uptake index is increased by at least 10%. The rejuvenated molecular sieve or catalyst can be used to make an olefin product from an oxygenate-containing feedstock. The preferred molecular sieve is a silicoaluminophosphate (SAPO) molecular sieve.</p>
申请公布号
EP1276564(A2)
申请公布日期
2003.01.22
申请号
EP20010930737
申请日期
2001.04.26
申请人
EXXONMOBIL CHEMICAL PATENTS INC.
发明人
JANSSEN, MARCEL, J., G.;VAN OORSCHOT, CORNELIUS, W., M.;CLEM, KENNETH, R.