Patents by Inventor Brian R. Kromer

Brian R. Kromer 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).

  • Patent number: 9365422
    Abstract: A method and system for producing a synthesis gas in an oxygen transport membrane based reforming system that utilizes a combined feed stream having a steam to carbon ratio between about 1.6 and 3.0 and a temperature between about 500° C. and 750° C. The combined feed stream is comprised a pre-reformed hydrocarbon feed, superheated steam, and a reaction product stream created by the reaction of a hydrogen containing stream reacted with the permeated oxygen at the permeate side of the oxygen transport membrane elements and wherein the hydrogen containing stream is a recycled portion of the synthesis gas.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: June 14, 2016
    Assignee: PRAXAIR TECHNOLOGY, INC.
    Inventors: Shrikar Chakravarti, Brian R. Kromer, Keith A. Craigie, Sean M. Kelly, Juan Li
  • Patent number: 9238201
    Abstract: A method and apparatus for producing heat used in a synthesis gas production process is provided. The disclosed method and apparatus include a plurality of tubular oxygen transport membrane elements adapted to separate oxygen from an oxygen containing stream contacting the retentate side of the membrane elements. The permeated oxygen is combusted with a hydrogen containing synthesis gas stream contacting the permeate side of the tubular oxygen transport membrane elements thereby generating a reaction product stream and radiant heat. The present method and apparatus also includes at least one catalytic reactor containing a catalyst to promote the steam reforming reaction wherein the catalytic reactor is surrounded by the plurality of tubular oxygen transport membrane elements. The view factor between the catalytic reactor and the plurality of tubular oxygen transport membrane elements radiating heat to the catalytic reactor is greater than or equal to 0.5.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: January 19, 2016
    Assignee: PRAXAIR TECHNOLOGY, INC.
    Inventors: Sean M. Kelly, Brian R. Kromer, Michael M. Litwin, Lee J. Rosen, Gervase Maxwell Christie, Jamie R. Wilson, Lawrence W. Kosowski, Charles Robinson
  • Patent number: 9180419
    Abstract: A method and apparatus for producing a synthesis gas product having one or more oxygen transport membrane elements thermally coupled to one or more catalytic reactors such that heat generated from the oxygen transport membrane element supplies endothermic heating requirements for steam methane reforming reactions occurring within the catalytic reactor through radiation and convention heat transfer. A hydrogen containing stream containing no more than 20 percent methane is combusted within the oxygen transport membrane element to produce the heat and a heated combustion product stream. The heated combustion product stream is combined with a reactant stream to form a combined stream that is subjected to the reforming within the catalytic reactor. The apparatus may include modules in which tubular membrane elements surround a central reactor tube.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: November 10, 2015
    Assignee: PRAXAIR TECHNOLOGY, INC.
    Inventors: Sean M. Kelly, Brian R. Kromer, Michael M. Litwin, Lee J. Rosen, Gervase Maxwell Christie, Jamie R. Wilson, Lawrence W. Kosowski, Charles Robinson
  • Patent number: 9115045
    Abstract: A method and system for producing methanol that employs both an oxygen transport membrane (OTM) based reforming system together with a more traditional steam methane reforming (SMR) and/or autothermal (ATR) synthesis gas production system is disclosed. The dual mode system and method for producing the synthesis gas in a methanol production process optimizes the efficiency and productivity of the methanol plant by using the OTM based reforming system as an independent source of synthesis gas. The disclosed methods and systems are configurable either as a retrofit to existing methanol production facilities or as an integrated package into newly constructed methanol production facilities.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: August 25, 2015
    Assignee: PRAXAIR TECHNOLOGY, INC.
    Inventors: Shrikar Chakravarti, Minish M. Shah, Raymond Francis Drnevich, Wladimir Y. Sarmiento-Darkin, Brian R. Kromer, Sean M. Kelly
  • Publication number: 20140323599
    Abstract: A method and system for producing methanol that employs both an oxygen transport membrane (OTM) based reforming system together with a more traditional steam methane reforming (SMR) and/or autothermal (ATR) synthesis gas production system is disclosed. The dual mode system and method for producing the synthesis gas in a methanol production process optimizes the efficiency and productivity of the methanol plant by using the OTM based reforming system as an independent source of synthesis gas. The disclosed methods and systems are configurable either as a retrofit to existing methanol production facilities or as an integrated package into newly constructed methanol production facilities.
    Type: Application
    Filed: November 15, 2013
    Publication date: October 30, 2014
    Inventors: Shrikar Chakravarti, Minish M. Shah, Raymond Francis Drnevich, Wladimir Y. Sarmiento-Darkin, Brian R. Kromer, Sean M. Kelly
  • Publication number: 20140319427
    Abstract: A method and system for producing a synthesis gas in an oxygen transport membrane based reforming system that utilizes a combined feed stream having a steam to carbon ratio between about 1.6 and 3.0 and a temperature between about 500° C. and 750° C. The combined feed stream is comprised a pre-reformed hydrocarbon feed, superheated steam, and a reaction product stream created by the reaction of a hydrogen containing stream reacted with the permeated oxygen at the permeate side of the oxygen transport membrane elements and wherein the hydrogen containing stream is a recycled portion of the synthesis gas.
    Type: Application
    Filed: December 6, 2013
    Publication date: October 30, 2014
    Inventors: Shrikar Chakravarti, Brian R. Kromer, Keith A. Craigie, Sean M. Kelly, Juan Li
  • Publication number: 20140183866
    Abstract: A method and system for generating electrical power is provided in which a high pressure synthesis gas stream generated in a gasifier is partially oxidized in an oxygen transport membrane based reactor, expanded and thereafter, is combusted in an oxygen transport membrane based boiler. A low pressure synthesis gas slip stream is split off downstream of the expanders and used as the source of fuel in the oxygen transport membrane based partial oxidation reactors to allow the oxygen transport membrane to operate at low fuel pressures with high fuel utilization. The combustion within the boiler generates heat to raise steam to in turn generate electricity by a generator coupled to a steam turbine. The resultant flue gas can be purified to produce a carbon dioxide product.
    Type: Application
    Filed: December 23, 2013
    Publication date: July 3, 2014
    Inventors: Brian R. Kromer, Michael M. Litwin, Sean M. Kelly
  • Publication number: 20140056774
    Abstract: A method and apparatus for producing heat used in a synthesis gas production process is provided. The disclosed method and apparatus include a plurality of tubular oxygen transport membrane elements adapted to separate oxygen from an oxygen containing stream contacting the retentate side of the membrane elements. The permeated oxygen is combusted with a hydrogen containing synthesis gas stream contacting the permeate side of the tubular oxygen transport membrane elements thereby generating a reaction product stream and radiant heat. The present method and apparatus also includes at least one catalytic reactor containing a catalyst to promote the steam reforming reaction wherein the catalytic reactor is surrounded by the plurality of tubular oxygen transport membrane elements. The view factor between the catalytic reactor and the plurality of tubular oxygen transport membrane elements radiating heat to the catalytic reactor is greater than or equal to 0.5.
    Type: Application
    Filed: October 31, 2013
    Publication date: February 27, 2014
    Inventors: Sean M. Kelly, Brian R. Kromer, Michael M. Litwin, Lee J. Rosen, Gervase Maxwell Christie, Jamie R. Wilson, Lawrence W. Kosowski, Charles Robinson
  • Patent number: 8623241
    Abstract: A method and apparatus for producing heat used in a synthesis gas production process is provided. The disclosed method and apparatus include a plurality of tubular oxygen transport membrane elements adapted to separate oxygen from an oxygen containing stream contacting the retentate side of the membrane elements. The permeated oxygen is combusted with a hydrogen containing synthesis gas stream contacting the permeate side of the tubular oxygen transport membrane elements thereby generating a reaction product stream and radiant heat. The present method and apparatus also includes at least one catalytic reactor containing a catalyst to promote the steam reforming reaction wherein the catalytic reactor is surrounded by the plurality of tubular oxygen transport membrane elements. The view factor between the catalytic reactor and the plurality of tubular oxygen transport membrane elements radiating heat to the catalytic reactor is greater than or equal to 0.5.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: January 7, 2014
    Assignee: Praxair Technology, Inc.
    Inventors: Sean M. Kelly, Brian R. Kromer, Michael M. Litwin, Lee J. Rosen, Gervase Maxwell Christie, Jamie R. Wilson, Lawrence W. Kosowski, Charles Robinson
  • Publication number: 20130084221
    Abstract: A method and apparatus for producing a synthesis gas product having one or more oxygen transport membrane elements thermally coupled to one or more catalytic reactors such that heat generated from the oxygen transport membrane element supplies endothermic heating requirements for steam methane reforming reactions occurring within the catalytic reactor through radiation and convention heat transfer. A hydrogen containing stream containing no more than 20 percent methane is combusted within the oxygen transport membrane element to produce the heat and a heated combustion product stream. The heated combustion product stream is combined with a reactant stream to form a combined stream that is subjected to the reforming within the catalytic reactor. The apparatus may include modules in which tubular membrane elements surround a central reactor tube.
    Type: Application
    Filed: November 26, 2012
    Publication date: April 4, 2013
    Inventors: Sean M. Kelly, Brian R. Kromer, Michael M. Litwin, Lee J. Rosen, Gervase Maxwell Christie, Jamie R. Witson, Lawrence W. Kosowski, Charles Robinson
  • Publication number: 20130009100
    Abstract: A method and apparatus for producing a synthesis gas product having one or more oxygen transport membrane elements thermally coupled to one or more catalytic reactors such that heat generated from the oxygen transport membrane element supplies endothermic heating requirements for steam methane reforming reactions occurring within the catalytic reactor through radiation and convention heat transfer. A hydrogen containing stream containing no more than 20 percent methane is combusted within the oxygen transport membrane element to produce the heat and a heated combustion product stream. The heated combustion product stream is combined with a reactant stream to form a combined stream that is subjected to the reforming within the catalytic reactor. The apparatus may include modules in which tubular membrane elements surround a central reactor tube.
    Type: Application
    Filed: July 8, 2011
    Publication date: January 10, 2013
    Inventors: Sean M. KELLY, Brian R. KROMER, Michael M. LITWIN, Lee J. ROSEN, Gervase Maxwell CHRISTIE, Jamie R. WILSON, Lawrence W. KOSOWSKI, Charles ROBINSON
  • Publication number: 20130009102
    Abstract: A method and apparatus for producing heat used in a synthesis gas production process is provided. The disclosed method and apparatus include a plurality of tubular oxygen transport membrane elements adapted to separate oxygen from an oxygen containing stream contacting the retentate side of the membrane elements. The permeated oxygen is combusted with a hydrogen containing synthesis gas stream contacting the permeate side of the tubular oxygen transport membrane elements thereby generating a reaction product stream and radiant heat. The present method and apparatus also includes at least one catalytic reactor containing a catalyst to promote the steam reforming reaction wherein the catalytic reactor is surrounded by the plurality of tubular oxygen transport membrane elements. The view factor between the catalytic reactor and the plurality of tubular oxygen transport membrane elements radiating heat to the catalytic reactor is greater than or equal to 0.5.
    Type: Application
    Filed: July 5, 2012
    Publication date: January 10, 2013
    Inventors: Sean M. KELLY, Brian R. KROMER, Michael M. LITWIN, Lee J. ROSEN, Gervase Maxwell CHRISTIE, Jamie R. WILSON, Lawrence W. KOSOWSKI, Charles ROBINSON
  • Patent number: 8349214
    Abstract: A method and apparatus for producing a synthesis gas product having one or more oxygen transport membrane elements thermally coupled to one or more catalytic reactors such that heat generated from the oxygen transport membrane element supplies endothermic heating requirements for steam methane reforming reactions occurring within the catalytic reactor through radiation and convention heat transfer. A hydrogen containing stream containing no more than 20 percent methane is combusted within the oxygen transport membrane element to produce the heat and a heated combustion product stream. The heated combustion product stream is combined with a reactant stream to form a combined stream that is subjected to the reforming within the catalytic reactor. The apparatus may include modules in which tubular membrane elements surround a central reactor tube.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: January 8, 2013
    Assignee: Praxair Technology, Inc.
    Inventors: Sean M. Kelly, Brian R. Kromer, Michael M. Litwin, Lee J. Rosen, Gervase Maxwell Christie, Jamie R. Wilson, Lawrence W. Kosowski, Charles Robinson