Patents by Inventor Carl A. Udovich
Carl A. Udovich 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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Publication number: 20050200124Abstract: Composite joints for gas-tight members that exhibit different coefficients of thermal expansion are disclosed. Broadly, apparatus of the invention provides composite joints which include a girdle of a resilient material disposed between mating surfaces of a high strength metallic member and a nonmetallic member in an arrangement wherein a difference in fluid pressures across the joint provides compressive force upon the girdle through tapered mating surfaces thereby improving resistance to fluid leakage. Composite joints of the invention are particularly useful for joining a high strength weldable metallic conduit and a gas-tight ceramic member having a tubular structure, closed at one end, with a tapered mating surface at a distal end thereof contiguous with a portion of the girdle. Processes beneficially using joints in accordance with the invention include converting methane gas into value-added-products, for example, production of synthesis gas comprising carbon monoxide and molecular hydrogen.Type: ApplicationFiled: March 12, 2004Publication date: September 15, 2005Inventors: Mark Kleefisch, Joseph Masin, John Collins, Sherman Xu, Carl Udovich
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Patent number: 6324827Abstract: A method of generating power by passing a dimethyl ether-containing fuel to a dry low NOx combustor of a fired turbine-combustor in the presence of an oxygen-containing gas for combustion in the combustor to form flue gas, and then passing the flue gas to the turbine to generate power, wherein the fuel comprises a mixture of dimethyl ether, at least one alcohol and, optionally, a component selected from the group consisting of water and C1-C6 alkanes. The fuel composition used in the inventive method permits a safe and highly efficient operation of a dry low NOx combustion system, while at the same time, minimizing the generation of NOx and carbon monoxide emissions.Type: GrantFiled: July 1, 1997Date of Patent: December 4, 2001Assignee: BP Corporation North America Inc.Inventors: Arunabha Basu, Theo H. Fleisch, Carl A. Udovich, Alakananda Bhattacharyya, Michael J. Gradassi
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Patent number: 6293978Abstract: A process for converting organic compounds using composite materials in membrane reactors. The composite materials include a gas-tight ceramic, a porous metallic support, and an interfacial zone therebetween eliminate the need for mechanical seals between two such dissimilar materials. Oxygen ion-conducting dense ceramic membranes are formed on a porous metallic alloy to provide an interfacial zone identifiable by a gradient of composition in at least one metallic element across the interfacial zone between the dense ceramic membrane and the porous support. Processes using composite materials in accordance with the invention are, for example, used for production of synthesis gas comprising carbon monoxide and molecular hydrogen, whereby the synthesis gas is, advantageously, free of deleterious and/or inert gaseous diluents such as nitrogen.Type: GrantFiled: January 9, 2001Date of Patent: September 25, 2001Assignee: BP Corporation North America Inc.Inventors: Mark S. Kleefisch, Carl A. Udovich, Joseph G. Masin, Thaddeus P. Kobylinski
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Patent number: 6270541Abstract: A diesel fuel composition comprising from about 70 to about 95 weight percent of dimethyl ether, up to about 20 weight percent of methanol, and from about 0.1 to about 20 weight percent of water is disclosed.Type: GrantFiled: June 5, 1995Date of Patent: August 7, 2001Assignee: BP Corporation North America Inc.Inventors: Arunabha Basu, Theodore H. Fleisch, Christopher I. McCarthy, Svend-Erik Mikkelsen, Carl A. Udovich
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Publication number: 20010003232Abstract: Composite materials of the invention, which include a gas-tight ceramic, a porous metallic support, and an interfacial zone therebetween eliminate the need for mechanical seals between two such dissimilar materials. Oxygen ion-conducting dense ceramic membranes are formed on a porous metallic alloy to provide an interfacial zone identifiable by a gradient of composition in at least one metallic element across the interfacial zone between the dense ceramic membrane and the porous support. Processes using composite materials in accordance with the invention are, for example, used for production of synthesis gas comprising carbon monoxide and molecular hydrogen, whereby the synthesis gas is, advantageously, free of deleterious and/or inert gaseous diluents such as nitrogen.Type: ApplicationFiled: January 9, 2001Publication date: June 14, 2001Inventors: Mark S. Kleefisch, Carl A. Udovich, Joseph G. Masin, Thaddeus P. Kobylinski
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Patent number: 6200541Abstract: Composite materials of the invention, which include a gas-tight ceramic, a porous metallic support, and an interfacial zone therebetween eliminate the need for mechanical seals between two such dissimilar materials. Oxygen ion-conducting dense ceramic membranes are formed on a porous metallic alloy to provide an interfacial zone identifiable by a gradient of composition in at least one metallic element across the interfacial zone between the dense ceramic membrane and the porous support. Processes using composite materials in accordance with the invention are, for example, used for production of synthesis gas comprising carbon monoxide and molecular hydrogen, whereby the synthesis gas is, advantageously, free of deleterious and/or inert gaseous diluents such as nitrogen.Type: GrantFiled: May 7, 1999Date of Patent: March 13, 2001Assignee: BP Amoco CorporationInventors: Mark S. Kleefisch, Carl A. Udovich, Joseph G. Masin, Thaddeus P. Kobylinski
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Patent number: 5980840Abstract: The present invention relates to devices for conducting, simultaneously, exothermic and endothermic chemical conversions with transfer of heat therebetween. More particularly, this invention relates to autothermic modules using oxygen ion-conducting dense ceramic membranes to separate, selectively, oxygen from an oxygen-containing gas and supply it directly to partial combustion of gaseous organic compounds. Processes using autothermic modules in accordance with this invention are, advantageously, used for production of synthesis gas comprising carbon monoxide and molecular hydrogen which synthesis gas is substantially free of deleterious and/or inert gaseous diluents such as nitrogen. In particular, for conversions, within the integral autothermic module, of natural gas or other forms of gaseous lower alkanes to synthesis gas by means of partial combustion followed by reforming.Type: GrantFiled: April 25, 1997Date of Patent: November 9, 1999Assignee: BP Amoco CorporationInventors: Mark S. Kleefisch, Carl A. Udovich, Alakananda Bhattacharyya, Thaddeus P. Kobylinski
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Patent number: 5939353Abstract: A direct, simplified and relatively salt-free process is described for making anionic, hydrotalcite-type pillared clay compositions which contain nickel, and their heat-treated derivatives. Compositions of the invention are manufactured from ractants which contain a relatively minor amount of metal salts or, preferably, contain essentially no metal salts. Preferred compositions made by the process form a number of new nickel-containing catalytic materials which are unusually resistant to deactivation, for example resistant to coke formation when used to catalyze chemical conversions of a hydrocarbyl compound with an oxygen-containing gas at elevated temperatures to form synthesis gas.Type: GrantFiled: September 22, 1997Date of Patent: August 17, 1999Assignee: BP Amoco CorporationInventors: Alakananda Bhattacharyya, Wen-Dong Chang, Mark S. Kleefisch, Carl A. Udovich
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Patent number: 5935533Abstract: The present invention relates to composite materials for membrane reactors which include a gas-tight ceramic, a porous support, and an interfacial zone therebetween. More particularly, this invention relates to composite materials using oxygen ion-conducting dense ceramic membranes formed on a porous support comprising a metallic alloy to provide an interfacial zone identifiable by a gradient of composition in at least one metallic element across the interfacial zone between the dense ceramic membrane and the porous support. Processes using composite materials in accordance with the invention are, for example, used for production of synthesis gas comprising carbon monoxide and molecular hydrogen which synthesis gas is, advantageously, free of deleterious and/or inert gaseous diluents such as nitrogen.Type: GrantFiled: October 28, 1997Date of Patent: August 10, 1999Assignee: BP Amoco CorporationInventors: Mark S. Kleefisch, Carl A. Udovich, Joseph G. Masin, Thaddeus P. Kobylinski
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Patent number: 5906664Abstract: The invention relates to high energy, oxygenated fuel compositions suitable for use in compression ignition internal combustion engines which fuel compositions contain a synergistic combination of dimethyl ether, methanol, and water, the combination providing a single liquid phase with good ignition characteristics. More particularly fuels comprising from about 72 to about 95 weight percent of dimethyl ether, from about 0.1 to about 20 weight percent of methanol, and from about 0.1 to about 20 weight percent of water are disclosed.Type: GrantFiled: March 26, 1998Date of Patent: May 25, 1999Assignee: Amoco CorporationInventors: Arunabha Basu, Theodore H. Fleisch, Christopher I. McCarthy, Svend-Erik Mikkelsen, Carl A. Udovich
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Patent number: 5767040Abstract: A method and nickel-containing catalyst are disclosed for preparing synthesis gas by the reforming of a hydrocarbyl compound using an oxygen-containing compound.Type: GrantFiled: May 22, 1995Date of Patent: June 16, 1998Assignee: Amoco CorporationInventors: Alakananda Bhattacharyya, Wen-Dong Chang, Mark S. Kleefisch, Carl A. Udovich
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Patent number: 5653774Abstract: A method and nickel-containing catalyst are disclosed for preparing synthesis gas by the reforming of a hydrocarbyl compound using an oxygen-containing compound.Type: GrantFiled: May 22, 1995Date of Patent: August 5, 1997Assignee: Amoco CorporationInventors: Alakananda Bhattacharyya, Wen-Dong Chang, Mark S. Kleefisch, Carl A. Udovich
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Patent number: 5632786Abstract: A method is described for operating a spark ignition internal combustion engine utilizing an improved composition containing dimethyl ether and propane as fuel. An engine incorporating the invention produces a lesser amount of certain atmospheric pollutants, such as carbon monoxide and unburned hydrocarbons, as compared to the amount of pollutants produced when the engine is operated at identical conditions with propane as fuel. Also described is an improved fuel composition which exhibits a lower vapor pressure than, for example, propane and, therefore, is relatively easier to liquefy and transport.Type: GrantFiled: September 14, 1995Date of Patent: May 27, 1997Assignee: Amoco CorporationInventors: Arunabha Basu, Theo H. Fleisch, Christopher I. McCarthy, Carl A. Udovich
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Patent number: 5614163Abstract: A process is disclosed for preparing a synthesis gas comprising hydrogen and carbon monoxide by partial oxidation of hydrocarbyl compounds using a source of oxygen comprising molecular oxygen, carbon dioxide, or mixtures thereof in the presence of a catalyst comprising thermally stable mixtures formed by heat treating a hydrotalcite-like compound.Type: GrantFiled: July 26, 1995Date of Patent: March 25, 1997Assignee: Amoco CorporationInventors: Alakananda Bhattacharyya, Mark S. Kleefisch, Carl A. Udovich
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Patent number: 5591238Abstract: A method and nickel-containing catalyst are disclosed for preparing synthesis gas by the reforming of a hydrocarbyl compound using an oxygen-containing compound.Type: GrantFiled: December 9, 1994Date of Patent: January 7, 1997Assignee: Amoco CorporationInventors: Alakananda Bhattacharyya, Wen-Dong Chang, Mark S. Kleefisch, Carl A. Udovich
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Patent number: 5439861Abstract: A process is disclosed for preparing a synthesis gas comprising hydrogen and carbon monoxide by partial oxidation of hydrocarbyl compounds using a source of oxygen comprising molecular oxygen, carbon dioxide, or mixtures thereof in the presence of a catalyst comprising thermally stable mixtures formed by heat treating a hydrotalcite-like compound.Type: GrantFiled: April 16, 1993Date of Patent: August 8, 1995Assignee: Amoco CorporationInventors: Alakananda Bhattacharyya, Mark S. Kleefisch, Carl A. Udovich
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Patent number: 5399537Abstract: A method and nickel-containing catalyst are disposed for preparing synthesis gas by the reforming of a hydrocarbyl compound using an oxygen-containing compound.Type: GrantFiled: August 20, 1993Date of Patent: March 21, 1995Assignee: Amoco CorporationInventors: Alakananda Bhattacharyya, Wen-Dong Chang, Mark S. Kleefisch, Carl A. Udovich
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Patent number: 5356728Abstract: This invention discloses cross-flow electrochemical reactor cells containing oxygen permeable materials which have both electron conductivity and oxygen ion conductivity, cross-flow reactors, and electrochemical processes using cross-flow reactor cells having oxygen permeable monolithic cores to control and facilitate transport of oxygen from an oxygen-containing gas stream to oxidation reactions of organic compounds in another gas stream. These cross-flow electrochemical reactors comprise a hollow ceramic blade positioned across a gas stream flow or a stack of crossed hollow ceramic blades containing a channel or channels for flow of gas streams. Each channel has at least one channel wall disposed between a channel and a portion of an outer surface of the ceramic blade, or a common wall with adjacent blades in a stack comprising a gas-impervious mixed metal oxide material of a perovskite structure having electron conductivity and oxygen ion conductivity.Type: GrantFiled: April 16, 1993Date of Patent: October 18, 1994Assignee: Amoco CorporationInventors: Uthamalingam Balachandran, Roger B. Poeppel, Mark S. Kleefisch, Thaddeus P. Kobylinski, Carl A. Udovich
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Patent number: 5210353Abstract: A process is provided for transaralkylating a class of starting compounds comprised of aryl-substituted lower alkanes and aryl-substituted fused alkylene ring compounds to produce derivatives of such compounds wherein benzyl substituents thereof have different alkyl substituents compared to the starting compounds. The process is carried out by admixing such a starting compound with a lower alkyl-substituted aromatic compound under liquid phase conditions in the presence of a catalytically effective amount of a Friedel-Crafts catalyst. The process makes possible new and economical routes for synthesizing desired lower alkyl-substituted benzyl group containing compounds, such as 2,2-di(lower alkyl-substituted) phenyl propanes and 1,3,3-trimethyl-1-(lower alkyl-substituted)-phenyl indans. Thus, there is provided a three-step process for making dixylylpropane from alpha methyl styrene and also a two-step process for making 1,3,3,6-tetramethyl-1-o-xylyl indan from alpha-4-dimethyl styrene.Type: GrantFiled: November 30, 1990Date of Patent: May 11, 1993Assignee: Amoco CorporationInventors: Carl A. Udovich, E. William Breder, Jr., Ibrahim Ghanayem, Mark W. Meszaros, Thomas E. Nemo, Thomas G. Smith
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Patent number: 4929761Abstract: There is disclosed a process for the preparation of a benzophenone, which process comprises contacting a feed comprising an aromatic carboxylic acid in the vapor phase and under suitable conditions with a catalyst which is capable of catalyzing the conversion of an aromatic carboxylic acid to a benzophenone to provide a yield of at least 10% benzophenone and which comprises at least one oxide that is an oxide of an element having an atomic number of at least 60. Typical catalysts are neodymium trioxide and a mixture of thorium dioxide and magnesium oxide.Type: GrantFiled: December 22, 1986Date of Patent: May 29, 1990Assignee: Amoco CorporationInventors: Gregory P. Hussmann, Carl A. Udovich