Robert W Lang

US Patent:

43348939, Jun 15, 1982

Filed:

Nov 24, 1980

Appl. No.:

6/210089

Inventors:

Robert J. Lang - Baytown TX

Assignee:

Exxon Research & Engineering Co. - Florham Park NJ

International Classification:

C10J 306
C10J 354

US Classification:

48202

Abstract:

In a coal gasification operation or similar conversion process carried out in the presence of an alkali metal-containing catalyst wherein solid particles containing alkali metal residues are produced, alkali metal constituents are recovered from the particles primarily in the form of water-soluble alkali metal sulphites and bisulphites by treating the particles with a solution of sulfurous acid. During the treating process the water-insoluble alkali metal compounds in the alkali metal residues are converted into water-soluble alkali metal sulphites and bisulphites, which have been found to be catalytically active. The aqueous solution containing water-soluble alkali metal sulphites and bisulphites is then separated from the treated particles and any insoluble material formed during the treatment process, treated to remove soluble aluminum compounds and recycled to the gasification process where the alkali metal sulphites and bisulphites serve as at least a portion of the alkali metal constituents which comprise the alkali metal-containing catalyst.

US Patent:

46170278, Oct 14, 1986

Filed:

Aug 17, 1982

Appl. No.:

6/408990

Inventors:

Robert J. Lang - Baytown TX

Assignee:

Exxon Research and Engineering Co. - Florham Park NJ

International Classification:

C10J 314

US Classification:

48210

Abstract:

A novel process, and the articles of manufacture, or compositions, formed thereby, wherein a Group II-A metal, or compound thereof, can be ion-exchanged onto coal, and thereafter a Group I metal physically admixed or otherwise incorporated therewith, so that the composition can be pyrolyzed, and gasified, to form a high-BTU, intermediate-BTU or synthesis fuel gas. Suitably, the Group II metal, or alkaline earth metal, can be directly ion-exchanged onto a low rank coal, without necessity of any pretreatment, by contact with a basic solution of a Group II-A metal compound since, of course, low rank coals contain natural ion-exchange sites. An alkaline earth metal, or metals, can also be ion-exchanged onto a high rank coal, notably one deficient in natural active exchange sites, such as a subbituminous or bituminous coal, by (a) contacting, heating and soaking the coal in an alkali solution of a Group I-A metal compound sufficient to incorporate said metal compound, or cation portion thereof, into said coal and form ion-exchange sites, (b) or by oxidation of the high rank coal by contact with an oxidizing agent, preferably an oxygen-containing gas (air), peroxygen compound, oxidizing acid or the like, to form ion-exchange sites, ion-exchanging a Group II metal onto the active sites thus created, and thereafter admixing or otherwise incorporating the Group I metal to form the desired article of manufacture, or composition.

US Patent:

48310034, May 16, 1989

Filed:

Sep 14, 1987

Appl. No.:

7/095942

Inventors:

Robert J. Lang - Baytown TX
Peter S. Maa - Baton Rouge LA
Veluswamy R. LaVanga - Baton Rouge LA

Assignee:

Exxon Research and Engineering Company - Florham Park NJ

International Classification:

B01J 2118

US Classification:

502182

Abstract:

A catalyst composition prepared by depositing a metal or metal compound onto a carbon support formed, in effect, simultaneously with the deposition of the metal or metal compound via partial combustion of an unsaturated hydrocarbon and thereafter converting said metal or metal compound to an oxide or sulfide having hydrogenation activity. The metal is selected from the group of metals consisting of Groups II-B, IV-B, IV-A, V-A, VI-A, VII-A and VIII-A metals of the Periodic Table of the Elements. The catalyst compositions are useful in hydroconversion and hydrotreating processes.

US Patent:

43360343, Jun 22, 1982

Filed:

Mar 10, 1980

Appl. No.:

6/128799

Inventors:

Robert J. Lang - Baytown TX
Joanne K. Pabst - Crosby TX

Assignee:

Exxon Research & Engineering Co. - Florham Park NJ

International Classification:

C10J 300
C10J 346

US Classification:

48202

Abstract:

Carbonaceous solids are contacted in the presence of water with potassium sulfate and a calcium compound selected from the group consisting of calcium oxide, calcium hydroxide, and calcium carbonate thereby producing treated carbonaceous solids which are then gasified. The calcium compound apparently activates the relatively noncatalytic potassium sulfate thereby producing a substantial catalytic effect on the gasification reactions.

US Patent:

47202890, Jan 19, 1988

Filed:

Jul 5, 1985

Appl. No.:

6/751927

Inventors:

Stephen N. Vaugh - Webster TX
Robert Lang - Baytown TX

Assignee:

Exxon Research and Engineering Company - Florham Park NJ

International Classification:

C10J 354

US Classification:

48197R

Abstract:

A process for gasifying a non-gaseous solid material wherein a portion of the gasification is accomplished in the presence of steam and another portion of the gasification is accomplished in the presence of hydrogen and in the substantial absence of carbon dioxide and steam. The gasification will be accomplished at an elevated temperature and pressure. The essence of the invention resides in the discovery that carbon alkali metal catalyst, generally used for the gasification of carbonaceous materials, will deactivate in the presence of carbon dioxide, especially if the alkali metal carbonate is stable at gasification conditions and in the discovery that this deactivation can be either significantly reduced if the initial portion of the gasification is completed in the presence of hydrogen and in the substantial absence of steam and carbon dioxide or if after the catalyst has become partially deactivated, the activity is restored by completing a portion of the gasification in the presence of hydrogen and in the substantial absence of steam and carbon dioxide.

US Patent:

42004390, Apr 29, 1980

Filed:

Dec 19, 1977

Appl. No.:

5/861826

Inventors:

Robert J. Lang - Baytown TX

Assignee:

Exxon Research & Engineering Co. - Florham Park NJ

International Classification:

C10J 300
C10J 354

US Classification:

48210

Abstract:

A process wherein Group I-A or Group II-A metals, or both, can be ion-exchanged onto coal, especially a high rank coal, notably a subbituminous or bituminous coal, to produce a highly reactive carbonaceous feed for use in gasification reactions, especially to produce high-BTU fuel gases, but also intermediate-BTU or synthesis gas. The coal is treated by contact with an alkaline solution of an admixture of compounds, inclusive of a soluble alkali metal salt and an excess of an alkaline earth metal hydroxide, each of which interacts one with the other to form an alkali metal hydroxide, and an insoluble alkaline earth metal salt precipitate. The coal is treated in a single step by contact with the solution within which both the Group I-A and II-A metal compounds are dispersed, or dissolved. Where the coal does not contain adequate ion-exchange sites, these are formed by reaction between the alkali metal hydroxide, generated by the reaction, and the coal, and in turn all or a portion of the alkali metal cations are exchanged or replaced by alkaline earth metal cations which are present in the alkali metal hydroxide solution that is formed. Preferably, the treatment is continued until substantially all of the alkali metal cations have been replaced by the alkaline earth metal cations, and then the solution is evaporated while in contact with the coal to redeposit and physically disperse the alkali metal upon the coal.

US Patent:

43187129, Mar 9, 1982

Filed:

May 19, 1980

Appl. No.:

6/151007

Inventors:

Robert J. Lang - Baytown TX
Joanne K. Pabst - Crosby TX

Assignee:

Exxon Research & Engineering Co. - Florham Park NJ

International Classification:

C10J 354

US Classification:

48202

Abstract:

A carbonaceous feed material, a potassium compound having a relatively poor catalytic activity as compared to that of potassium carbonate, and a sodium or lithium salt are introduced into a gasification reactor. The carbonaceous material is then gasified in the presence of the added potassium and sodium or lithium constituents. The added sodium or lithium salt apparently activates the relatively noncatalytic potassium compound thereby producing a substantial catalytic effect on the gasification reactions. In general, activation of the noncatalytic potassium compound will take place when the sodium or lithium compound introduced into the reactor is either a salt of a weak acid or a salt of a strong acid that is converted to a sodium or lithium salt of a weak acid in the reactor at gasification conditions.

US Patent:

50513893, Sep 24, 1991

Filed:

Jun 25, 1990

Appl. No.:

7/542679

Inventors:

Robert J. Lang - Baytown TX
Claude C. Culross - Baton Rouge LA
Lonnie W. Vernon - Baytown TX
William E. Winter - Baton Rouge LA

Assignee:

Exxon Research and Engineering Company - Florham Park NJ

International Classification:

B01J 2118
B01J 2328
B01J 27051
C10G 106

US Classification:

502185

Abstract:

A catalyst composition prepared by depositing a metal or metal compound onto a preformed carbon support and thereafter converting said metal or metal compounds to an oxide or sulfide having hydrogenation activity. The metal is selected from the group of metals consisting of Groups II-B, IV-B, IV-A, V-A, VI-A, VII-A and VIII-A metals of the Periodic Table of the Elements. The catalyst compositions are useful in hydroconversion and hydrotreating processes.

Address:

206 Walnut Bnd Ln, Houston, TX 77042

Phone:

281 463-4255

VIN:

1GYEE63A770136208

Make:

CADILLAC

Model:

SRX

Year:

2007