Title:
PROCESS FOR SELECTIVELY PRODUCING PROPYLENE IN A FLUID CATALYTIC CRACKING PROCESS
Document Type and Number:
WIPO Patent Application WO2001090278
Kind Code:
A3
Abstract:
A process for producing polypropylene from olefins selectively produced from a catalytically cracked or thermally cracked naphtha stream is disclosed herein. The naphtha stream is contacted with a catalyst containing from 10 to 50 wt.% of a crystalline zeolite having an average pore diameter less than 0.7 nanometers at reaction conditions which include temperatures from 500 DEG C to 650 DEG C and a hydrocarbon partial pressure from 10 to 40 psia. The catalyst may be pre-coked with a carbonaceous feed. Alternatively, the carbonaceous feed used to coke the catalyst may be co-fed with the naphtha feed.
Inventors:
LADWIG PAUL K
ASPLIN JOHN E
STUNTZ GORDON F
WACHTER WILLIAM A
HENRY BRIAN ERIK
ASPLIN JOHN E
STUNTZ GORDON F
WACHTER WILLIAM A
HENRY BRIAN ERIK
Application Number:
PCT/US2001/016020
Publication Date:
March 28, 2002
Filing Date:
May 19, 2001
Export Citation:
Assignee:
EXXONMOBIL CHEM PATENTS INC (US)
International Classes:
C07B61/00; C07C4/06; C07C4/04; C07C11/02; C07C11/06; C08F10/06; C10G11/02; C10G11/04; C10G11/05; C10G11/18; C10G35/02; C10G35/04; C10G35/06; C10G35/095; C10G51/02; C10G51/04; C10G57/02; (IPC1-7): C10G11/05; C10G11/18
Domestic Patent References:
| WO1993022400A1 | 1993-11-11 | |||
| WO1999057086A1 | 1999-11-11 |
Foreign References:
| EP0849347A2 | 1998-06-24 | |||
| US4892643A | 1990-01-09 |
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