Title:
REJUVENATING MOLECULAR SIEVE BY FREEZE DRYING
Document Type and Number:
WIPO Patent Application WO2002053283
Kind Code:
A9
Abstract:
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.
Inventors:
JANSSEN MARCEL J G
VAN OORSCHOT C W M
CLEM KENNETH R
VAN OORSCHOT C W M
CLEM KENNETH R
Application Number:
PCT/US2001/050986
Publication Date:
May 30, 2003
Filing Date:
December 20, 2001
Export Citation:
Assignee:
EXXONMOBIL CHEM PATENTS INC (US)
International Classes:
B01J29/85; B01J37/32; B01J38/02; C07C1/20; (IPC1-7): B01J29/06; B01J37/32; B01J38/02; C07C1/20
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