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Title: Reducing fischer-tropsch catalyst attrition losses in high agitation reaction systems

Abstract

A method for reducing catalyst attrition losses in hydrocarbon synthesis processes conducted in high agitation reaction systems; a method of producing an attrition-resistant catalyst; a catalyst produced by such method; a method of producing an attrition-resistant catalyst support; and a catalyst support produced by such method. The inventive method of reducing catalyst attrition losses comprises the step of reacting a synthesis gas in a high agitation reaction system in the presence of a catalyst. In one aspect, the catalyst preferably comprises a .gamma.-alumina support including an amount of titanium effective for increasing the attrition resistance of the catalyst. In another aspect, the catalyst preferably comprises a .gamma.-alumina support which has been treated, after calcination, with an acidic, aqueous solution. The acidic aqueous solution preferably has a pH of not more than about 5. In another aspect, the catalyst preferably comprises cobalt on a .gamma.-alumina support wherein the cobalt has been applied to the .gamma.-alumina support by totally aqueous, incipient wetness-type impregnation. In another aspect, the catalyst preferably comprises cobalt on a .gamma.-alumina support with an amount of a lanthana promoter effective for increasing the attrition resistance of the catalyst. In another aspect, the catalyst preferably comprises a .gamma.-alumina support producedmore » from boehmite having a crystallite size, in the 021 plane, in the range of from about 30 to about 55 .ANG.ngstrons. In another aspect, the inventive method of producing an attrition-resistant catalyst comprises the step of treating a .gamma.-alumina support, after calcination of and before adding catalytic material to the support, with an acidic solution effective for increasing the attrition resistance of the catalyst. In another aspect, the inventive method of producing an attrition-resistant catalyst support comprises the step of treating calcined .gamma.-alumina with an acidic, aqueous solution effective for increasing the attrition resistance of the .gamma.-alumina.

Inventors:
 [1];  [2];  [3]
+ Show Inventor Affiliations
  1. Baden, PA
  2. Gibsonia, PA
  3. Cranberry Township, PA
Issue Date:
Research Org.:
ENERGY INTERNATIONAL INC
OSTI Identifier:
873861
Patent Number(s):
6262132
Assignee:
Energy International Corporation (Pittsburgh, PA)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS
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DOE Contract Number:  
AC22-92PC92108
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
reducing; fischer-tropsch; catalyst; attrition; losses; agitation; reaction; systems; method; hydrocarbon; synthesis; processes; conducted; producing; attrition-resistant; produced; support; inventive; comprises; step; reacting; gas; presence; aspect; preferably; gamma; -alumina; including; amount; titanium; effective; increasing; resistance; treated; calcination; acidic; aqueous; solution; ph; cobalt; applied; totally; incipient; wetness-type; impregnation; lanthana; promoter; boehmite; crystallite; size; 021; plane; range; 30; 55; ang; ngstrons; treating; adding; catalytic; material; calcined; attrition resistance; catalyst comprises; synthesis process; hydrocarbon synthesis; catalyst support; fischer-tropsch catalyst; aqueous solution; synthesis gas; preferably comprises; catalytic material; acidic aqueous; acidic solution; inventive method; support including; attrition losses; agitation reaction; catalyst attrition; support comprises; comprises cobalt; reaction systems; crystallite size; incipient wetness; resistant catalyst; preferably comprise; losses comprises; alumina support; /518/502/

Citation Formats

Singleton, Alan H, Oukaci, Rachid, and Goodwin, James G. Reducing fischer-tropsch catalyst attrition losses in high agitation reaction systems. United States: N. p., 2001. Web.
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Singleton, Alan H, Oukaci, Rachid, & Goodwin, James G. Reducing fischer-tropsch catalyst attrition losses in high agitation reaction systems. United States.
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Singleton, Alan H, Oukaci, Rachid, and Goodwin, James G. Mon . "Reducing fischer-tropsch catalyst attrition losses in high agitation reaction systems". United States. https://www.osti.gov/servlets/purl/873861.
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@article{osti_873861,
title = {Reducing fischer-tropsch catalyst attrition losses in high agitation reaction systems},
author = {Singleton, Alan H and Oukaci, Rachid and Goodwin, James G},
abstractNote = {A method for reducing catalyst attrition losses in hydrocarbon synthesis processes conducted in high agitation reaction systems; a method of producing an attrition-resistant catalyst; a catalyst produced by such method; a method of producing an attrition-resistant catalyst support; and a catalyst support produced by such method. The inventive method of reducing catalyst attrition losses comprises the step of reacting a synthesis gas in a high agitation reaction system in the presence of a catalyst. In one aspect, the catalyst preferably comprises a .gamma.-alumina support including an amount of titanium effective for increasing the attrition resistance of the catalyst. In another aspect, the catalyst preferably comprises a .gamma.-alumina support which has been treated, after calcination, with an acidic, aqueous solution. The acidic aqueous solution preferably has a pH of not more than about 5. In another aspect, the catalyst preferably comprises cobalt on a .gamma.-alumina support wherein the cobalt has been applied to the .gamma.-alumina support by totally aqueous, incipient wetness-type impregnation. In another aspect, the catalyst preferably comprises cobalt on a .gamma.-alumina support with an amount of a lanthana promoter effective for increasing the attrition resistance of the catalyst. In another aspect, the catalyst preferably comprises a .gamma.-alumina support produced from boehmite having a crystallite size, in the 021 plane, in the range of from about 30 to about 55 .ANG.ngstrons. In another aspect, the inventive method of producing an attrition-resistant catalyst comprises the step of treating a .gamma.-alumina support, after calcination of and before adding catalytic material to the support, with an acidic solution effective for increasing the attrition resistance of the catalyst. In another aspect, the inventive method of producing an attrition-resistant catalyst support comprises the step of treating calcined .gamma.-alumina with an acidic, aqueous solution effective for increasing the attrition resistance of the .gamma.-alumina.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2001},
month = {Mon Jan 01 00:00:00 EST 2001}
}
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Works referenced in this record:

Ruthenium Promotion of Co/Al2O3Fischer–Tropsch Catalysts
journal, April 1996

Carbon dioxide reforming of methane over lanthanum-modified catalysts in a fluidized-bed reactor
journal, December 1994

Design parameters estimations for bubble column reactors
journal, May 1982

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