Disclosed is a method of rejuvenating molecular sieve and molecular sieve catalyst. The method includes freeze drying a molecular sieve having a methanol conversion ratio of less than 1, or a caalyst containing molecular sieve and a binder having a methanol conversion ratio of less than 1. The rejuvenated molecular sieve or catalyst is used to make an olefin product from an oxygenate. The olefin product containing ethylene and propylene can then be used to make polyethylene and polypropylene, respectively.
申请公布号
WO02053283(A3)
申请公布日期
2002.09.06
申请号
WO2001US50986
申请日期
2001.12.20
申请人
EXXONMOBIL CHEMICAL PATENTS INC.
发明人
JANSSEN, MARCEL, J., G.;VAN OORSCHOT, C., W., M.;CLEM, KENNETH, R.