Resumes
Resumes
Claude Culross Phones & Addresses
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16027 Chantilly Ave, Baton Rouge, LA 70817 (225) 751-4529
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Baytown, TX
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Houston, TX
Work
Position:
Administrative Support Occupations, Including Clerical Occupations
Publications
Us Patents
Process For Increasing Carbon Monoxide Hydrogenation Activity Of Catalysts Via Low Temperature Oxidation With Water, Steam Or Mixture Thereof
View pageUS Patent:
6531517, Mar 11, 2003
Filed:
Aug 1, 2000
Appl. No.:
09/630279
Inventors:
William Augustine Wachter - Baton Rouge LA
Gregg Johnston Howsmon - Baton Rouge LA
Jeffrey Thomas Elks - Baton Rouge LA
Leroy Russell Clavenna - Baton Rouge LA
Hyung Suk Woo - Baton Rouge LA
Claude Clarence Culross - Baton Rouge LA
Charles Harrison Mauldin - Baton Rouge LA
Christine Esther Kliewer - Clinton NJ
Gregg Johnston Howsmon - Baton Rouge LA
Jeffrey Thomas Elks - Baton Rouge LA
Leroy Russell Clavenna - Baton Rouge LA
Hyung Suk Woo - Baton Rouge LA
Claude Clarence Culross - Baton Rouge LA
Charles Harrison Mauldin - Baton Rouge LA
Christine Esther Kliewer - Clinton NJ
Assignee:
ExxonMobil Research and Engineering Company - Annandale NJ
International Classification:
C07C 2700
US Classification:
518709, 518715, 518700, 502 20, 502 22, 502 23, 502241, 502325, 502326, 208 15, 208 18, 208 61, 208 33
Abstract:
A process for increasing the hydrogenation activity, particularly the carbon monoxide hydrogenation activity, of a catalyst or catalyst precursor comprised of a particulate solids support component and a catalytic metal, or metals component, preferably cobalt; cobalt alone or cobalt and an additional metal, or metals added to promote or modify the reaction produced by the cobalt. Treatment of the catalyst, or catalyst precursor is conducted at low temperature ranging from ambient to about 275Â C. sufficient to form on the surface of a catalyst precursor, e. g. , a cobalt catalyst precursor, a cobalt metal hydroxide, low valence cobalt metal oxide, or mixture of cobalt metal hydroxide and low valence cobalt metal oxide. Sometimes also metallic metal, e. g. , cobalt, is also formed, and dispersed on the surface of the support.
Slurry Catalyst Rejuvenation In-Situ In Slurry Reactor
View pageUS Patent:
6541525, Apr 1, 2003
Filed:
Mar 27, 2001
Appl. No.:
09/818437
Inventors:
Claude Clarence Culross - Baton Rouge LA
Assignee:
ExxonMobil Research and Engineering Company - Annandale NJ
International Classification:
C07C 2700
US Classification:
518709, 518715, 502 21
Abstract:
A process for rejuvenating reversibly deactivated catalyst particles in a three-phase slurry body of gas bubbles and catalyst particles in a slurry liquid, includes passing slurry from the top down to the bottom of the body through a slurry catalyst rejuvenating means. The slurry is sequentially passed through a first gas bubble reducing zone, a catalyst rejuvenating gas contacting zone, a second gas bubble reducing zone and then a downcomer transfer zone. The gas bubble reducing, contacting and at least a portion of transfer occur in slurry body. At least part of the means is in the slurry body.
Carbon Monoxide Hydrogenation Process
View pageUS Patent:
6624204, Sep 23, 2003
Filed:
Sep 1, 2000
Appl. No.:
09/653914
Inventors:
Michel A. Daage - Baton Rouge LA
Russell John Koveal - Baton Rouge LA
David Chester Long - Baton Rouge LA
Leroy Russell Clavenna - Baton Rouge LA
James Dirickson Mumford - Long Valley NJ
Claude Clarence Culross - Baton Rouge LA
Russell John Koveal - Baton Rouge LA
David Chester Long - Baton Rouge LA
Leroy Russell Clavenna - Baton Rouge LA
James Dirickson Mumford - Long Valley NJ
Claude Clarence Culross - Baton Rouge LA
Assignee:
ExxonMobil Research and Engineering Company - Annandale NJ
International Classification:
C07C 2700
US Classification:
518709, 518700, 518715, 502 20, 502301, 502326, 502331
Abstract:
A method is disclosed for renewing the activity of a Dispersed Active Metal (DAM) catalyst during operation of a reactor wherein the hydrogenation of carbon monoxide to produce a mixture of hydrocarbons is being carried out comprising withdrawing a mixture of hydrocarbons and a portion of the DAM catalyst, reducing the hydrocarbon content thereof, heating the mixture above the melting temperature of at least one of the metals of the DAM to form a melt, removing any slag that forms on the melt, cooling the melt to form a solid, reducing the particle size thereof to form a renewed particulate DAM catalyst, which is then returned to the reactor. Wherein the DAM catalyst is a Raney catalyst, a leachable metal is added to the reduced hydrocarbon mixture or the melt under non-oxidizing conditions and, after the solid is reduced to a fine particle size, extracting the leachable metal with caustic. The activity of the DAM may be modified or enhanced during the process by the addition of promoter metals, or prior to being returned to the reactor, by slurry low temperature oxidation followed by reduction at elevated temperature, and may further be enhanced by being passivated prior to being returned to the reactor. The catalyst may be withdrawn and replaced periodically or continuously during the operation of the reactor.
Slurry Catalyst Rejuvenation In-Situ In Slurry Reactor
View pageUS Patent:
6703430, Mar 9, 2004
Filed:
Dec 17, 2002
Appl. No.:
10/321111
Inventors:
Claude Clarence Culross - Baton Rouge LA
Assignee:
ExxonMobil Research and Engineering Company - Annandale NJ
International Classification:
C07C 2700
US Classification:
518709, 518700, 422197, 422205
Abstract:
A process for rejuvenating reversibly deactivated catalyst particles in a three-phase slurry body of gas bubbles and catalyst particles in a slurry liquid, includes passing slurry from the top down to the bottom of the body through a slurry catalyst rejuvenating means. The slurry is sequentially passed through a first gas bubble reducing zone, a catalyst rejuvenating gas contacting zone, a second gas bubble reducing zone and then a downcomer transfer zone. The gas bubble reducing, contacting and at least a portion of transfer occur in slurry body. At least part of the means is in the slurry body.
Coal Hydroconversion Process Comprising Solvent Extraction And Combined Hydroconversion And Upgrading
View pageUS Patent:
50715402, Dec 10, 1991
Filed:
Dec 21, 1989
Appl. No.:
7/455652
Inventors:
Claude C. Culross - Baton Rouge LA
Steve D. Reynolds - Baton Rouge LA
Steve D. Reynolds - Baton Rouge LA
Assignee:
Exxon Research & Engineering Company - Florham Park NJ
International Classification:
C10G 106
US Classification:
208414
Abstract:
An improved process for the hydroconversion of coal comprising pretreating coal in an aqeuous carbon monoxide-containing environment, followed by extracting a soluble hydrocarbon material from the coal, and subsequently hydroconverting the extracted material in a hydroconversion reactor with a high catalyst loading to obtain a nearly finished product with low heteroatom levels. The extracted material consists of a relatively hydrogen-rich material which is readily converted to valuable liquid products in high yield. The residue from the extraction stage is relatively hydrogen deficient material which can be gasified to produce hydrogen and carbon monoxide for the hydroconversion and pretreatment stages, respectively.
Liquefaction Process
View pageUS Patent:
53384415, Aug 16, 1994
Filed:
Oct 13, 1992
Appl. No.:
7/960335
Inventors:
Steve C. LeViness - Baton Rouge LA
Steve J. Hsia - Baton Rouge LA
Michael Y. Wen - Baton Rouge LA
Stephen M. Davis - Baton Rouge LA
Claude C. Culross - Baton Rouge LA
Peter S. Maa - Baton Rouge LA
Steve J. Hsia - Baton Rouge LA
Michael Y. Wen - Baton Rouge LA
Stephen M. Davis - Baton Rouge LA
Claude C. Culross - Baton Rouge LA
Peter S. Maa - Baton Rouge LA
Assignee:
Exxon Research and Engineering Company - Florham Park NJ
International Classification:
C10G 106
C10G 108
C10G 108
US Classification:
208419
Abstract:
The present invention relates to a catalytic process for converting a solid carbonaceous material, such as coal, to a liquid product in the presence of hydrogen. More particularly, this invention relates to a coal liquefaction process wherein a mixture of coal, bottoms, solvent and a sulfiding agent is subjected to liquefaction conditions in the presence of a catalyst precursor. This catalyst or catalyst precursor is comprised of a thermally decomposable compound of Groups IIB, IVB, VB, VIB, VIIB, and VIII of the Periodic Table of the Elements such as molybdenum.
Small Catalyst Particle Addition To Slurry Reactor
View pageUS Patent:
59771925, Nov 2, 1999
Filed:
Nov 13, 1998
Appl. No.:
9/192037
Inventors:
Gregg J. Howsmon - Baton Rouge LA
Robert J. Wittenbrink - Baton Rouge LA
Claude C. Culross - Baton Rouge LA
Louis F. Burns - Baton Rouge LA
Robert J. Wittenbrink - Baton Rouge LA
Claude C. Culross - Baton Rouge LA
Louis F. Burns - Baton Rouge LA
Assignee:
Exxon Research and Engineering Co. - Florham Park NJ
International Classification:
C07C 2700
C07B 6302
C10G 4702
C10G 4500
C07B 6302
C10G 4702
C10G 4500
US Classification:
518700
Abstract:
Small particle size catalysts having an average particle size of less than 20 or 10 microns, which agglomerate when contacted with a hydrocarbon liquid, are easily dispersed in the hydrocarbon liquid by first forming a mixture comprising the catalyst particles and one or more non-acidic, liquid polar oxygenates, such as an alcohol, ketone, ester, ether or mixture thereof. The mixture is contacted with the hydrocarbon liquid in which the particles then readily disperse. This process is useful for adding fresh or regenerated small particle size catalyst to catalytic hydroprocessing process slurries, including a reactive Fischer-Tropsch hydrocarbon synthesis slurry. One to four carbon atom alcohols are preferred oxygenates for use with a Fischer-Tropsch slurry.
Method For Atomically Dispersing Catalytic Metals Into Support Materials
View pageUS Patent:
53786734, Jan 3, 1995
Filed:
Dec 23, 1992
Appl. No.:
7/996261
Inventors:
Stephen D. Reynolds - Baton Rouge LA
Claude C. Culross - Baton Rouge LA
Claude C. Culross - Baton Rouge LA
Assignee:
Exxon Research and Engineering Company - Florham Park NJ
International Classification:
B01J 3702
B01J 3708
B01J 2356
B01J 2374
B01J 3708
B01J 2356
B01J 2374
US Classification:
502174
Abstract:
A process for the atomic dispersion of metals into support materials, preferably silica, alumina, and amorphous and zeolitic alumino-silicates. The support material is contacted with an aqueous composition of a metal carbonate, or bicarbonate. This results in the metal being atomically dispersed in the support material.