Patents by Inventor Mark S. Kleefisch
Mark S. Kleefisch 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: 8807218Abstract: A method and apparatus for wellbore perforation in which a laser beam at a downhole location of a wellbore is directed to a target area of a wellbore wall to be perforated. The laser beam is guided through a longitudinally extensible nozzle onto the target area and a purge fluid is introduced into the longitudinally extensible nozzle, thereby longitudinally extending the nozzle toward the target area. The purge fluid in the longitudinally extensible nozzle is passed through a purge fluid outlet of the nozzle onto the target area, thereby removing debris from the target area generated by the laser beam.Type: GrantFiled: August 10, 2011Date of Patent: August 19, 2014Assignee: Gas Technology InstituteInventors: Mark S Kleefisch, Iraj Salehi
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Publication number: 20130037268Abstract: A method and apparatus for wellbore perforation in which a laser beam at a downhole location of a wellbore is directed to a target area of a wellbore wall to be perforated. The laser beam is guided through a longitudinally extensible nozzle onto the target area and a purge fluid is introduced into the longitudinally extensible nozzle, thereby longitudinally extending the nozzle toward the target area. The purge fluid in the longitudinally extensible nozzle is passed through a purge fluid outlet of the nozzle onto the target area, thereby removing debris from the target area generated by the laser beam.Type: ApplicationFiled: August 10, 2011Publication date: February 14, 2013Applicant: GAS TECHNOLOGY INSTITUTEInventors: Mark S. KLEEFISCH, Iraj SALEHI
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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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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: 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: 5723074Abstract: Preparation, structure, and properties of mixed metal oxide compositions and their uses are described. Mixed metal oxide compositions of the invention have stratified crystalline structure identifiable by means of powder X-ray diffraction patterns. In the form of dense ceramic membranes, the present compositions demonstrate an ability to separate oxygen selectively from a gaseous mixture containing oxygen and one or more other volatile components by means of ionic conductivities.Type: GrantFiled: April 1, 1996Date of Patent: March 3, 1998Assignee: Amoco CorporationInventors: Uthamalingam Balachandran, Mark S. Kleefisch, Thaddeus P. Kobylinski, Sherry L. Morissette, Shiyou Pei
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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: 5639437Abstract: Preparation, structure, and properties of mixed metal oxide compositions containing at least strontium, cobalt, iron and oxygen are described. The crystalline mixed metal oxide compositions of this invention have, for example, structure represented bySr.sub..alpha. (Fe.sub.1-x Co.sub.x).sub..alpha.+.beta. O.sub..delta.where x is a number in a range from 0.01 to about 1, .alpha. is a number in a range from about 1 to about 4, .beta. is a number in a range upward from 0 to about 20, and .delta. is a number which renders the compound charge neutral, and wherein the composition has a non-perovskite structure. Use of the mixed metal oxides in dense ceramic membranes which exhibit oxygen ionic conductivity and selective oxygen separation, are described as well as their use in separation of oxygen from an oxygen-containing gaseous mixture.Type: GrantFiled: September 3, 1996Date of Patent: June 17, 1997Assignee: Amoco CorporationInventors: Uthamalingam Balachandran, Mark S. Kleefisch, Thaddeus P. Kobylinski, Sherry L. Morissette, Shiyou Pei
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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: 5580497Abstract: Preparation, structure, and properties of mixed metal oxide compositions containing at least strontium, cobalt, iron and oxygen are described. The crystalline mixed metal oxide compositions of this invention have, for example, structure represented bySr.sub..alpha. (Fe.sub.1-x Co.sub.x).sub..alpha.+.beta. O.sub..delta.where x is a number in a range from 0.01 to about 1, .alpha. is a number in a range from about 1 to about 4, .beta. is a number in a range upward from 0 to about 20, and .delta. is a number which renders the compound charge neutral, and wherein the composition has a non-perovskite structure. Use of the mixed metal oxides in dense ceramic membranes which exhibit oxygen ionic conductivity and selective oxygen separation, are described as well as their use in separation of oxygen from an oxygen-containing gaseous mixture.Type: GrantFiled: March 18, 1994Date of Patent: December 3, 1996Assignee: Amoco CorporationInventors: Uthamalingam Balachandran, Mark S. Kleefisch, Thaddeus P. Kobylinski, Sherry L. Morissette, Shiyou Pei
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Patent number: 5573737Abstract: A functionally gradient material for a membrane reactor for converting methane gas into value-added-products includes an outer tube of perovskite, which contacts air; an inner tube which contacts methane gas, of zirconium oxide, and a bonding layer between the perovskite and zirconium oxide layers. The bonding layer has one or more layers of a mixture of perovskite and zirconium oxide, with the layers transitioning from an excess of perovskite to an excess of zirconium oxide. The transition layers match thermal expansion coefficients and other physical properties between the two different materials.Type: GrantFiled: September 27, 1994Date of Patent: November 12, 1996Assignee: The United States of America as represented by the United States Department of EnergyInventors: Uthamalingam Balachandran, Joseph T. Dusek, Mark S. Kleefisch, Thadeus P. Kobylinski
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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: 5328883Abstract: A contact material composition containing an intimately mixed, mixed oxide of at least one cationic species of a naturally occurring Group IIIB element, at least one cationic species of a Group IIA metal of magnesium, calcium, strontium, and barium and a cationic species of aluminum, as well as methods for hydrocarbon conversion using such contact material compositions are provided.Type: GrantFiled: February 4, 1993Date of Patent: July 12, 1994Assignee: Amoco CorporationInventors: Don M. Washecheck, Mark K. Barr, George A. Huff, Jr., Mark P. Kaminsky, Mark S. Kleefisch, Victor K. Shum