Patents Represented by Attorney E. C. Bakun
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Patent number: 5928502Abstract: The invention comprises a method for reducing the amount of carboxylic acids in petroleum feeds comprising the steps of (a) adding to said petroleum feed a catalytic agent comprising an oil soluble or oil dispersible compound of a metal selected from the group consisting of Group VB, VIB, VIIB and VIII metals, wherein the amount of metal in said petroleum feed is at least about 5 wppm, (b) heating said petroleum feed with said catalytic agent in a reactor at a temperature of about 400 to about 800.degree. F. (about 204.44 to about 426.67.degree. C.) and a pressure of about atmospheric to about 1000 psig (about 6996.33 kPa) in the substantial absence of hydrogen, and (c) sweeping the reactor containing said petroleum feed and said catalytic agent with an inert gas to maintain the combined water and carbon dioxide partial pressure below about 50 psia (344.75 kPa).Type: GrantFiled: May 5, 1998Date of Patent: July 27, 1999Assignee: Exxon Research and Engineering Co.Inventors: Roby Bearden, Saul Charles Blum, William Neergaard Olmstead
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Patent number: 5919725Abstract: The present invention relates to a catalyst composition, its methods of preparation and its use in aromatic alkylation processes. The composition comprises a heteropoly compound selected from the group consisting of heteropoly salts and heteropolyacid salts deposited in the interior of a porous support selected from the group consisting of silica, titania, and zirconia, wherein said salt of said heteropoly salt and said heteropolyacid salt is selected from the group consisting of ammonium, cesium, potassium, and rubidium salts and mixtures thereof, and wherein said heteropoly salt and said heteropolyacid salt are formed with a heteropolyacid selected from the group consisting of 12-tungstophosphoric, 12-tungstosilicic, 12-molybdophosphoric, and 12-molybdosilicic acid.Type: GrantFiled: June 19, 1998Date of Patent: July 6, 1999Assignee: Exxon Research and Engineering Co.Inventors: Stuart Leon Soled, Jose Agusto da Costa Paes, Antonio Gutierrez, Sabato Miseo, William E. Gates, Kenneth L. Riley
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Patent number: 5914030Abstract: The invention comprises a method for reducing the amount of carboxylic acids in petroleum feeds comprising the steps of (a) adding to said petroleum feed a catalytic agent comprising an oil soluble or oil dispersible compound of a metal selected from the group consisting of Group VB, VIB, VIIB and VIII metals, wherein the amount of metal in said petroleum feed is at least about 5 wppm, (b) heating said petroleum feed with said catalytic agent in a reactor at a temperature of about 400 to about 800.degree. F. (about 204.44 to about 426.67.degree. C.), under a hydrogen pressure of 15 psig to 1000 psig (204.75 to 6996.33 kPa), and (c) sweeping the reactor containing said petroleum feed and said catalytic agent with hydrogen-containing gas at a rate sufficient to maintain the combined water and carbon dioxide partial pressure below about 50 psia (about 344.75 kPa).Type: GrantFiled: May 5, 1998Date of Patent: June 22, 1999Assignee: Exxon Research and Engineering. Co.Inventors: Roby Bearden, Saul Charles Blum, William Neergaard Olmstead
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Patent number: 5897768Abstract: Hydrocarbon feeds are upgraded by contact of the stream under hydrodesulfurization (HDS) conditions with a catalyst system comprising a sulfided, transition metal promoted tungsten/molybdenum HDS catalyst, e.g., Ni/Co--Mo/Al.sub.2 O.sub.3 and a solid acid catalyst which is effective for the isomerization/disproportionation/transalkylation of alkyl substituted, condensed ring heterocyclic sulfur compounds present in the feedstream, e.g. zeolite or a heteropolyacid compound. Isomerization, disproportionation and transalkylation reactions convert refractory sulfur compounds such as 4- or 4,6-alkyl dibenzothiophenes into corresponding isomers or disproportionated isomers which can be more readily desulfurized by conventional HDS catalysts to H.sub.2 S and other products.Type: GrantFiled: February 28, 1997Date of Patent: April 27, 1999Assignee: Exxon Research and Engineering Co.Inventors: Gary B. McVicker, Teh C. Ho, Stuart Soled, Michel Daage, Roman Krycak, Sabato Miseo, Viktor Buchholz, William E. Lewis
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Patent number: 5780554Abstract: A saturated polymer having a terminal aldehyde or hydroxy substituent which may be used directly or in a derivative form as a dispersant for both fuel and lubricating oil compositions, wherein the saturated polymer has a M.sub.n of about 300 to 10,000, and is derived from a polyolefin which is derived from a monomer of the formula H.sub.2 C.dbd.CHR.sup.4, wherein R.sup.4 is hydrogen or a straight or branched chain alkyl radical, and wherein the polyolefin has at least about 30% terminal vinylidene unsaturation. Particularly desirable amine derivatives can be formed by either a single step aminomethylation process or a two step hydroformylation and reductive amination process.Type: GrantFiled: November 1, 1996Date of Patent: July 14, 1998Assignee: Exxon Chemical Patents Inc.Inventors: Jacob Emert, Istvan T. Horvath, Richard H. Schlosberg, Warren A. Thaler, David A. Young, Stephen Zushma
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Patent number: 5777041Abstract: A saturated polymer having a terminal aldehyde or hydroxy substituent which may be used directly or in a derivative form as a dispersant for both fuel and lubricating oil compositions, wherein the saturated polymer has a M.sub.n of about 300 to 10,000, and is derived from a polyolefin which is derived from a monomer of the formula H.sub.2 C=CHR.sup.4, wherein R.sup.4 is hydrogen or a straight or branched chain alkyl radical, and wherein the polyolefin has at least about 30% terminal vinylidene unsaturation. Particularly desirable amine derivatives can be formed by either a single step aminomethylation process or a two step hydroformylation and reductive amination process.Type: GrantFiled: January 22, 1997Date of Patent: July 7, 1998Assignee: Exxon Chemical Patents IncInventors: Jacob Emert, Istvan T. Horvath, Richard H. Schlosberg, Warren A. Thaler, David A. Young, Stephen Zushma
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Patent number: 5719107Abstract: Thus, the instant invention is directed toward an oil for diesel engines comprising an admixture of (A) a major amount of an oil of lubricating viscosity, (B) at least 4 mass % dispersant, (C) at least 0.3 mass % of a metal phenate, (D) less than 0.1 mass % friction modifier, (E) less than 0.3 mass % of sulfurized phenols and, (F) less than 0.12 mass % neutral calcium sulfonate.Type: GrantFiled: August 9, 1996Date of Patent: February 17, 1998Assignee: Exxon Chemical Patents IncInventors: Edward Francis Outten, Andrew James Dalziel Ritchie
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Patent number: 5330734Abstract: Microporous materials of low acidity useful as sorbents and catalytic supports have been produced by pillaring tetrasilicic mica with silica polyoxocations generated by hydrolysis of organosilane precursors. Calcination at an intermediate temperature followed by washing of the solid with water is important in producing highly microporous material.Type: GrantFiled: March 9, 1993Date of Patent: July 19, 1994Assignee: Exxon Research and Engineering CompanyInventors: Jack W. Johnson, John F. Brody
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Patent number: 5169821Abstract: A method of preparing catalyst compositions of cobalt composited with ternary metal oxide supports of substituted titania having the general formula Co/Ti.sub.x M.sub.1-x O.sub.2 where x ranges from 0.01 to 0.14 and M is selected from the group consisting of silicon, zirconium, and tantalum and wherein the titania is an anatase polymorph stable under oxidative regeneration temperatures from about 400.degree. to about 750.degree. C.Type: GrantFiled: November 14, 1991Date of Patent: December 8, 1992Assignee: Exxon Research and Engineering CompanyInventors: Stuart L. Soled, Enrique Iglesia, Rocco A. Fiato, Gerald B. Ansell