Patents by Inventor Howard D. Simpson
Howard D. Simpson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 4743359Abstract: A hydrocarbon conversion catalyst containing a Group VIB metal on a porous refractory oxide is prepared by impregnating support particles with a solution containing Group VIB metal components and citric acid, followed by drying and calcining. The catalyst is useful for promoting a number of hydrocarbon conversion reactions, particularly those involving hydrogenative desulfurization, demetallization and denitrogenation.Type: GrantFiled: January 31, 1986Date of Patent: May 10, 1988Assignee: Union Oil Company of CaliforniaInventors: Pauline B. Ting, Howard D. Simpson
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Patent number: 4738944Abstract: A hydroprocessing catalyst contains nickel, phosphorus and about 19 to about 21.5 weight percent of molybdenum (MoO.sub.3) components on a porous refractory oxide. The catalyst has a narrow pore size distribution wherein at least 75 percent of the pore volume is in pores of diameter from about 50 to about 110 angstroms, at least 10 percent of the pore volume in pores of diameter less than 70 angstroms and at least 60 percent of the pore volume in pores of diameter within about 20 angstroms above or below the average pore diameter. The catalyst is employed to hydroprocess a hydrocarbon oil, especially those oils containing sulfur and nitrogen components.Type: GrantFiled: December 5, 1986Date of Patent: April 19, 1988Assignee: Union Oil Company of CaliforniaInventors: Paul R. Robinson, Howard D. Simpson
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Patent number: 4568450Abstract: A hydrocarbon conversion catalyst containing a Group VIB metal on a porous refractory oxide is prepared by impregnating support particles with a solution containing Group VIB metal components and citric acid, followed by drying and calcining. The catalyst is useful for promoting a number of hydrocarbon conversion reactions, particularly those involving hydrogenative desulfurization, demetallization and denitrogenation.Type: GrantFiled: March 30, 1984Date of Patent: February 4, 1986Assignee: Union Oil Company of CaliforniaInventors: Pauline B. Ting, Howard D. Simpson
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Patent number: 4568449Abstract: Hydrotreating with a catalyst comprising molybdenum, nickel, and phosphorus active components supported on gamma alumina is prepared with gamma alumina support particles which have been contacted with aqueous ammonia.Type: GrantFiled: February 11, 1985Date of Patent: February 4, 1986Assignee: Union Oil Company of CaliforniaInventors: Paul K. Angmorter, Howard D. Simpson, Ryden L. Richardson
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Patent number: 4548710Abstract: Hydroprocessing of hydrocarbon oils is carried out utilizing a catalyst containing active metal components on a porous refractory oxide and having a narrow pore size distribution, with essentially all pores being of diameter greater than about 100 angstroms, with less than about 10 percent of the total pore volume being in pores of diameter greater than 300 angstroms, and with at least about 60 percent of the total pore volume being in pores of diameter from about 180 to about 240 angstroms. The catalyst is particularly useful for removing of contaminant metals from residuum hydrocarbon oils.Type: GrantFiled: March 30, 1984Date of Patent: October 22, 1985Assignee: Union Oil Company of CaliforniaInventor: Howard D. Simpson
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Patent number: 4540483Abstract: A hydrotreating catalyst comprising molybdenum, nickel, and phosphorus active components supported on gamma alumina is prepared with gamma alumina support particles which have been contacted with aqueous ammonia and is employed in the hydrotreating process to reduce the sulfer and nitrogen content of hydrocarbons.Type: GrantFiled: December 29, 1983Date of Patent: September 10, 1985Assignee: Union Oil Company of CaliforniaInventors: Howard D. Simpson, Ryden L. Richardson, Paul K. Angmorter
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Patent number: 4513097Abstract: A hydrotreating catalyst comprising molybdenum, nickel, and phosphorus active components supported on gamma alumina is prepared with gamma alumina support particles which have been contacted with aqueous ammonia.Type: GrantFiled: March 9, 1984Date of Patent: April 23, 1985Assignee: Union Oil Company of CaliforniaInventors: Paul K. Angmorter, Howard D. Simpson, Ryden L. Richardson
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Patent number: 4500424Abstract: Hydrocarbon conversion catalysts contain at least one Group VIB metal component, at least one Group VIII metal component, and a phosphorus component on a porous refractory oxide and have a narrow pore size distribution including at least about 75 percent of the total pore volume in pores of diameter from about 70 to about 130 angstroms. The catalyst is useful for promoting a number of hydrocarbon conversion reactions, particularly those involving hydrogenative desulfurization.Type: GrantFiled: April 7, 1983Date of Patent: February 19, 1985Assignee: Union Oil Company of CaliforniaInventors: Howard D. Simpson, Ryden L. Richardson, Kenneth Baron
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Patent number: 4460707Abstract: Hydroprocessing of hydrocarbon oils is carried out utilizing a catalyst containing active metal components on a porous refractory oxide and having a narrow pore size distribution, with essentially all pores being of diameter greater than about 100 angstroms, with less than about 10 percent of the total pore volume being in pores of diameter greater than 300 angstroms, and with at least about 60 percent of the total pore volume being in pores of diameter from about 180 to about 240 angstroms. The catalyst is particularly useful for removing of contaminant metals from residuum hydrocarbon oils.Type: GrantFiled: December 28, 1982Date of Patent: July 17, 1984Assignee: Union Oil Company of CaliforniaInventor: Howard D. Simpson
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Patent number: 4455390Abstract: A hydrocarbon conversion catalyst containing a Group VIB metal on a porous refractory oxide is prepared by impregnating support particles with a solution containing Group VIB metal components and citric acid, followed by drying and calcining. The catalyst is useful for promoting a number of hydrocarbon conversion reactions, particularly those involving hydrogenative desulfurization, demetallization and denitrogenation.Type: GrantFiled: August 19, 1982Date of Patent: June 19, 1984Assignee: Union Oil Company of CaliforniaInventors: Pauline B. Ting, Howard D. Simpson
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Patent number: 4447317Abstract: The porosity and surface area of refractory oxides are modified by adding a lithium component thereto and then calcining. The resultant material, having a lower surface area, a lower total pore volume, and a larger average pore diameter in comparison to the original refractory oxide, is highly useful as a catalyst support, particularly with respect to hydrodesulfurization catalysts.Type: GrantFiled: May 5, 1983Date of Patent: May 8, 1984Assignee: Union Oil Company of CaliforniaInventors: J. Wayne Miller, Howard D. Simpson
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Patent number: 4446248Abstract: A hydrotreating catalyst comprising molybdenum, nickel, and phosphorus active components supported on gamma alumina is prepared with gamma alumina support particles which have been contacted with aqueous ammonia.Type: GrantFiled: August 16, 1982Date of Patent: May 1, 1984Assignee: Union Oil Company of CaliforniaInventors: Howard D. Simpson, Ryden L. Richardson
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Patent number: 4431526Abstract: In the catalytic hydroprocessing of hydrocarbons, a hydrocarbon oil is successively contacted with a first hydroprocessing catalyst in a first reaction zone and a second hydroprocessing catalyst in a second reaction zone. The first catalyst has an average pore diameter at least about 30 angstroms larger than the second catalyst, although both have narrow pore size distributions wherein at least about 90 percent of the total pore volume is in pores of diameter from about 100 angstroms to about 300 angstroms, and with essentially all the pores having diameters greater than 100 angstroms.Type: GrantFiled: July 6, 1982Date of Patent: February 14, 1984Assignee: Union Oil Company of CaliforniaInventors: Howard D. Simpson, Dennis P. McArthur
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Patent number: 4396500Abstract: A hydrotreating catalyst comprises molybdenum, nickel, and phosphorus components supported on gamma alumina precalcined at a temperature of at least 1375.degree. F.Type: GrantFiled: July 11, 1980Date of Patent: August 2, 1983Assignee: Union Oil Company of CaliforniaInventor: Howard D. Simpson
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Patent number: 4394302Abstract: The porosity and surface area of refractory oxides are modified by adding a lithium component thereto and then calcining. The resultant material, having a lower surface area, a lower total pore volume, and a larger average pore diameter in comparison to the original refractory oxide, is highly useful as a catalyst support, particularly with respect to hydrodesulfurization catalysts.Type: GrantFiled: October 26, 1981Date of Patent: July 19, 1983Assignee: Union Oil Company of CaliforniaInventors: J. Wayne Miller, Howard D. Simpson
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Patent number: 4302219Abstract: Process for producing synthetic fuel gas from either naturally occurring or synthetic liquid hydrocarbons by reacting the liquid hydrocarbons with hydrogen in the presence of a catalyst to produce methane. The catalyst comprises an interspersed mixture of metals selected from Groups IV(B), V(B), or VI(B) in combination with two Group VIII metals, composited with an inorganic refractory oxide support.Type: GrantFiled: December 5, 1980Date of Patent: November 24, 1981Assignee: Union Oil Company of CaliforniaInventors: Howard D. Simpson, Hugh W. Gowdy, Steven D. Light
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Patent number: 4284531Abstract: Methanation catalysts and process for preparing and using the same are disclosed; said methanation catalysts being especially suitable for producing synthetic fuel gas, from either naturally occurring liquid hydrocarbons or synthetic liquid hydrocarbons produced from solid carbonaceous materials, the product gas having substantially the same heating value and density as natural gas and which may be intermingled therewith and distributed through the same pipe lines.The methanation catalyst comprises an interspersed mixture of metals selected from Groups IV(B), V(B), VI(B) and VIII metals of the Periodic Table, composited with an inorganic refractory oxide support or matrix.Type: GrantFiled: September 5, 1979Date of Patent: August 18, 1981Assignee: Union Oil Co. of CaliforniaInventors: Howard D. Simpson, Hugh W. Gowdy, Steven D. Light
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Patent number: 4255282Abstract: A hydrotreating catalyst comprises molybdenum, nickel, and phosphorus components supported on gamma alumina precalcined at a temperature of at least 1375.degree. F.Type: GrantFiled: May 11, 1979Date of Patent: March 10, 1981Assignee: Union Oil Company of CaliforniaInventor: Howard D. Simpson
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Patent number: 4179410Abstract: Novel, high surface area cobalt-molybdenum-alumina desulfurization catalysts containing 20-30 weight-percent of MoO.sub.3, and being free of X-ray-detectable cobalt molybdate crystallites, are disclosed. A preferred method of preparation thereof involves first comulling boehmite alumina with aqueous ammonium molybdate solution, drying the resulting mixture, then comulling with a soluble cobalt salt and water, thereafter forming the resulting mixture into extrudates, and finally calcining the extrudates under controlled temperature conditions correlated with the molybdenum content of the catalyst so as to preserve adequate surface area and prevent the formation of large crystallites of cobalt molybdate.Type: GrantFiled: January 3, 1978Date of Patent: December 18, 1979Assignee: Union Oil Company of CaliforniaInventor: Howard D. Simpson
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Patent number: 4111795Abstract: Highly active cobalt-molybdenum-alumina desulfurization catalysts containing 18-30 weight-percent of MoO.sub.3 are prepared by first comulling boehmite alumina with aqueous ammonium molybdate solution, drying the resulting mixture, then comulling with a soluble cobalt salt and water, thereafter forming the resulting mixture into extrudates, and finally calcining the extrudates under controlled temperature conditions correlated with the molybdenum content of the catalyst so as to preserve adequate surface area and prevent the formation of large crystallites of cobalt molybdate. This method of preparation permits effective utilization of molybdenum in amounts up to about 30 weight-percent MoO.sub.3, a result not obtainable by conventional impregnation techniques.Type: GrantFiled: November 10, 1977Date of Patent: September 5, 1978Assignee: Union Oil Company of CaliforniaInventor: Howard D. Simpson