Patents Represented by Attorney Marthe L. Gibbons

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  • Fluid coking with the addition of polymetaphosphoric acid catalysts
    Patent number: 4400262
    Abstract: A fluid coking process is provided in which a polymetaphosphoric acid, a salt of a polymetaphosphoric acid or precursors thereof are present in the fluid coking zone.
    Type: Grant
    Filed: May 20, 1982
    Date of Patent: August 23, 1983
    Assignee: Exxon Research and Engineering Co.
    Inventors: Roby Bearden, Jr., Robert C. Schucker
  • Two-stage hydrorefining process
    Patent number: 4392945
    Abstract: A heavy hydrocarbonaceous oil containing certain types of organic sulfur compounds, such as, dibenzothiophenes, is hydrorefined in two stages with interstage removal of hydrogen sulfide and ammonia. A nickel-containing hydrorefining catalyst is used in the first hydrorefining stage and a cobalt-containing hydrorefining catalyst is used in the second hydrorefining stage.
    Type: Grant
    Filed: February 5, 1982
    Date of Patent: July 12, 1983
    Assignee: Exxon Research and Engineering Co.
    Inventors: Kent A. Howard, Duane A. Goetsch
  • Hydrocarbon conversion catalysts and processes utilizing the same
    Patent number: 4376039
    Abstract: A catalyst, having a specified amount of rare earth metal content and a specified amount of alkali metal content, suitable for conversion of hydrocarbon oils to lower boiling products comprises a crystalline aluminosilicate zeolite, such as zeolite Y, an inorganic oxide matrix and, optionally discrete particles of alumina dispersed in the matrix. The zeolite prior to being composited with the matrix has a unit cell size above about 24.5 Angstroms. A cracking process utilizing the catalyst is also provided.
    Type: Grant
    Filed: February 1, 1982
    Date of Patent: March 8, 1983
    Assignee: Exxon Research and Engineering Co.
    Inventors: Elroy M. Gladrow, William E. Winter, William L. Schuette
  • Coal liquefaction process
    Patent number: 4369106
    Abstract: In a process for catalytically converting coal in a diluent wherein the catalyst is prepared in situ in the coal-diluent mixture by converting a metal compound to a metal-containing catalyst, the metal compound is added to the coal-diluent mixture in a liquid medium comprising at least 30 weight percent of a phenol.
    Type: Grant
    Filed: March 16, 1981
    Date of Patent: January 18, 1983
    Assignee: Exxon Research and Engineering Co.
    Inventors: Clyde L. Aldridge, Roby Bearden, Jr.
  • Hydrocarbon hydrocracking process
    Patent number: 4368113
    Abstract: A hydrocracking process is provided in which the heavy bottoms fraction recovered from the hydrocracked product is heat treated prior to being recycled to the hydrocracking zone. The resulting hydrocracked product has an increased amount of constituents boiling in the middle distillate range.
    Type: Grant
    Filed: August 31, 1981
    Date of Patent: January 11, 1983
    Assignee: Exxon Research and Engineering Co.
    Inventors: William E. Winter, Mafer E. Tunison, David W. Staubs
  • Fluid coking with the addition of solids
    Patent number: 4366048
    Abstract: A fluid coking process is provided in which inert particles, such as coke, are added to the coker feed, in a specified amount.
    Type: Grant
    Filed: July 9, 1981
    Date of Patent: December 28, 1982
    Assignee: Exxon Research and Engineering Co.
    Inventors: William J. Metrailer, Steven Wiechert
  • Combination hydrorefining, heat-treating and hydrocracking process
    Patent number: 4366047
    Abstract: A process for upgrading a heavy hydrocarbonaceous oil is provided in which the oil is hydrorefined, heat-treated and hydrocracked to increase the selectivity of the hydrocracked product to components boiling in the range of 350.degree. to 675.degree. F.
    Type: Grant
    Filed: June 2, 1981
    Date of Patent: December 28, 1982
    Assignee: Exxon Research and Engineering Co.
    Inventors: William E. Winter, Bong H. Chang
  • Catalysts and hydrocarbon treating processes utilizing the same
    Patent number: 4357229
    Abstract: A catalyst comprising a composition comprising a catalytic metal component, carbon and hydrogen deposited on a low surface area metal or metal alloy support is provided. Hydrocarbon treating and conversion processes utilizing the catalyst are also provided. The catalyst is particularly suitable for slurry processes.
    Type: Grant
    Filed: March 23, 1981
    Date of Patent: November 2, 1982
    Assignee: Exxon Research and Engineering Co.
    Inventors: Roby Bearden, Jr., Clyde L. Aldridge
  • Catalysts and hydrocarbon treating processes utilizing the same
    Patent number: 4348270
    Abstract: A catalyst is provided which comprises a composition comprising a catalytic metal component, carbon and hydrogen deposited on a low surface area aluminum alloy powder support prepared by atomizing the metal alloy. Hydrocarbon treating and conversion processes utilizing the catalyst are also provided. The catalyst is particularly suitable for slurry processes.
    Type: Grant
    Filed: March 23, 1981
    Date of Patent: September 7, 1982
    Assignee: Exxon Research And Engineering Co.
    Inventors: Roby Bearden, Jr., Clyde L. Aldridge, Lloyd A. Pine
  • Method of ion exchange zeolites
    Patent number: 4346067
    Abstract: An improved ion exchange method is provided in which an alkali metal cation-containing crystalline metallosilicate zeolite is contacted with an ion exchange medium comprising an ammonium ion, urea and water. The resulting mixture is heated to a temperature sufficient to evaporate the water and solidify the remaining mixture. An ammonium exchanged zeolite having a decreased content of alkali metal is recovered.
    Type: Grant
    Filed: June 29, 1981
    Date of Patent: August 24, 1982
    Assignee: Exxon Research & Engineering Co.
    Inventor: William A. Wachter
  • Hydroprocessing catalysts
    Patent number: 4344867
    Abstract: A catalyst comprising Group VIB and Group VIII metal components and a support prepared by treating alpha alumina monohydrate with an acid solution comprising a hydrolyzable metal salt, such as zirconium nitrate.
    Type: Grant
    Filed: August 13, 1979
    Date of Patent: August 17, 1982
    Assignee: Exxon Research & Engineering Co.
    Inventors: Neville L. Cull, Willard H. Sawyer
  • Hydrocarbon conversion catalysts
    Patent number: 4339354
    Abstract: A catalyst, having a specified amount of rare earth metal content and a specified amount of alkali metal content, suitable for conversion of hydrocarbon oils to lower boiling products comprises a crystalline aluminosilicate zeolite, such as zeolite Y, an inorganic oxide matrix and, optionally discrete particles of alumina dispersed in the matrix. The zeolite prior to being composited with the matrix has a unit cell size above about 24.5 Angstroms. A cracking process utilizing the catalyst is also provided.
    Type: Grant
    Filed: October 10, 1980
    Date of Patent: July 13, 1982
    Assignee: Exxon Research & Engineering Co.
    Inventors: Elroy M. Gladrow, William E. Winter, William L. Schuette
  • Fluid coking and gasification process
    Patent number: 4331529
    Abstract: An integrated fluid coking and gasification process is provided in which a portion of the coke is gasified in a first gasification zone in the presence of an oxygen-containing gas to produce a hot gas and hot coke. A portion of the resulting hot coke is gasified in a second gasification zone in the presence of steam to produce a gas comprising hydrogen and carbon monoxide, which is suitable, after conventional shift and clean up, for use as synthesis gas.
    Type: Grant
    Filed: November 5, 1980
    Date of Patent: May 25, 1982
    Assignee: Exxon Research & Engineering Co.
    Inventors: Merlan M. Lambert, Joseph P. Matula
  • Hydroconversion process
    Patent number: 4330392
    Abstract: Nitrogen-containing carbonaceous feeds such as hydrocarbonaceous oils and coal are hydroconverted in the presence of a solid vanadium-containing catalyst and a hydrogen halide.
    Type: Grant
    Filed: August 29, 1980
    Date of Patent: May 18, 1982
    Assignee: Exxon Research & Engineering Co.
    Inventors: Roby Bearden, Jr., Clyde L. Aldridge, William C. Baird, Jr.
  • Hydrocracking over alumina-aluminum fluorophosphate-containing catalysts
    Patent number: 4326947
    Abstract: A catalyst is provided which comprises an ultrastable Y-type crystalline aluminosilicate zeolite, an alumina-aluminum fluorophosphate and a hydrogenation component. Hydrocarbon hydroprocessing processes utilizing the catalyst are also provided.
    Type: Grant
    Filed: December 8, 1980
    Date of Patent: April 27, 1982
    Assignee: Exxon Research & Engineering Co.
    Inventors: Willard H. Sawyer, Neville L. Cull
  • Catalytic fluid coking and gasification process
    Patent number: 4325815
    Abstract: An integrated catalytic fluid coking and gasification process is provided in which a portion of the coke produced in the coker is steam gasified to produce a hydrogen-containing gas and a catalytic partially gasified coke. Subsequently, a portion of the catalytic partially gasified coke is burned to provide heated partially gasified coke which is recycled to the gasification zone. A portion of the catalytic partially gasified coke is passed from the gasification zone to the coker to contact the coker vapor phase product comprising normally liquid hydrocarbons and to crack at least a portion of the normally liquid hydrocarbons. Optionally, solid fines recovered from the gaseous effluent of the gasification zone may be recycled to the carbonaceous chargestock of the coker.
    Type: Grant
    Filed: September 2, 1980
    Date of Patent: April 20, 1982
    Assignee: Exxon Research & Engineering Co.
    Inventor: William J. Metrailer
  • Hydrocracking process utilizing high surface area catalysts
    Patent number: 4313818
    Abstract: A hydrocracking process is provided utilizing high surface area metal-containing catalysts prepared by dispersing a thermally decomposable metal compound in a hydrocarbon oil having a Conradson carbon content of up to about 50 weight percent, the thermally decomposable metal compound being added in an amount sufficient to obtain a specified ratio of atoms of Conradson carbon of the oil chargestock to atoms of metal constituent of the thermally decomposable compound, heating the compound in the presence of a gas comprising either hydrogen or hydrogen sulfide or hydrogen and hydrogen sulfide to form a solid high surface area catalyst. The metal constituent of the thermally decomposable metal compound may be a metal of Groups II, III, IV, V, VIB, VIIB, VIII or mixtures thereof.
    Type: Grant
    Filed: December 19, 1979
    Date of Patent: February 2, 1982
    Assignee: Exxon Research & Engineering Co.
    Inventors: Clyde L. Aldridge, Roby Bearden, Jr.
  • Catalyst and hydroconversion process utilizing the same
    Patent number: 4309278
    Abstract: A catalyst is provided which comprises a hydrogenation component and a support comprising agglomerates of alumina having initially not more than 0.20 cubic centimeters per gram of its pore volume in pores greater than about 400 Angstroms in diameter and a minor amount of silica. A process for the hydroconversion of hydrocarbonaceous oils utilizing the catalyst is also provided.
    Type: Grant
    Filed: November 24, 1980
    Date of Patent: January 5, 1982
    Assignee: Exxon Research & Engineering Co.
    Inventor: Willard H. Sawyer
  • Hydroconversion of an oil-coal mixture
    Patent number: 4298454
    Abstract: A process for catalytically hydroconverting a mixture of coal and a hydrocarbonaceous oil is effected by forming a mixture of a thermally decomposable metal compound, oil and coal, converting the compound to a catalyst within the mixture and reacting the mixture with hydrogen. Preferred compounds are molybdenum compounds.
    Type: Grant
    Filed: October 11, 1979
    Date of Patent: November 3, 1981
    Assignee: Exxon Research and Engineering Company
    Inventors: Clyde L. Aldridge, Roby Bearden, Jr.
  • Fluid coking process
    Patent number: 4295956
    Abstract: A fluid coking process is provided in which the recycling of coke particles of less than about 44 microns in diameter to the coking reactor is minimized by passing the stream of coke withdrawn from the coking reactor to a vessel comprising a fluidized bed of solids separated into two zones. The coke withdrawn from the coker is passed into one zone where seed generation for the process is performed. Coke recycled to the coker is withdrawn from the second zone which is operated as an elutriation zone. The solid fines of less than 44 microns are removed overhead from the vessel with the gaseous effluent of the vessel. This improvement is particularly suitable for once-through fluid coking to minimize small fines being present in the coker liquid product.
    Type: Grant
    Filed: March 3, 1980
    Date of Patent: October 20, 1981
    Assignee: Exxon Research & Engineering Co.
    Inventor: William J. Metrailer