REGENERATION OF CATALYSTS FOR CARBON MONOXIDE HYDROGENATION

Title:

REGENERATION OF CATALYSTS FOR CARBON MONOXIDE HYDROGENATION

Document Type and Number:

WIPO Patent Application WO2003064034

Kind Code:

A3

Abstract:

There is provided a process for regenerating the activity of used metal catalysts for the hydrogenation of carbon monoxide comprising decreasing the hydrocarbon content thereof, calcining under an oxidant-containing atmosphere, impregnating with a solution of at least one of a metal compound, calcining under an oxidant-containing atmosphere and activating by contacting with a hydrogen-contacting gas at elevated temperatures to form an active catalyst. Th-e process regenerates and enhances both supported and dispersed active metal (DAM) catalysts. Used catalysts enhanced by the process are initially treated to decrease their hydrocarbon content. The treatment may be carried out in a single reactor, or by carrying out up to all steps after catalyst may be withdrawn from a reactor and returned to at least one reactor, both preferably during operation thereof Up to all steps may be effected in a subsequent reactor, or in specialized apparatus.

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Inventors:

DAAGE MICHEL A
KOVEAL RUSSELL JOHN JR
CHANG MIN

Application Number:

PCT/US2003/000150

Publication Date:

November 27, 2003

Filing Date:

January 03, 2003

Export Citation:

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Assignee:

EXXONMOBIL RES & ENG CO (US)

International Classes:

B01J23/94; B01J23/96; B01J38/10; B01J38/12; B01J38/48; B01J38/56; B01J38/68; C07B61/00; C07C1/04; C07C9/04; C10G2/00; B01J23/75; B01J38/00; (IPC1-7): B01J23/94; B01J23/96; B01J38/68

Domestic Patent References:

WO1998027181A1

1998-06-25

Foreign References:

US5928980A	1999-07-27
US2348418A	1944-05-09
US5154819A	1992-10-13
US5071538A	1991-12-10
DD119138A1	1976-04-12
GB533459A	1941-02-13
US2582713A	1952-01-15
US2481841A	1949-09-13
US5977192A	1999-11-02

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