Patents by Inventor Robert W. Carr

Robert W. Carr 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: 9180426
    Abstract: An apparatus and method of producing methanol is provided that reacts a methane-containing gas and an oxygen-containing gas in a reactor to provide a product stream comprising methanol and formaldehyde. The product stream is scrubbed using a process component absorbent. After scrubbing the product stream, unprocessed methane gas is mixed with the methane-containing gas for reprocessing through the reactor while methanol and formaldehyde is sent to a rectification process for removal.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: November 10, 2015
    Assignee: Gas Technologies, LLC
    Inventors: Nathan A Pawlak, Robert W Carr
  • Patent number: 8524175
    Abstract: A reactor system for gas phase reacting of at least two fluid feed streams, where the reactor system has an injectively-mixed backmixing reaction chamber in fluid communication with a tubular-flow reactor. The injectively-mixed backmixing reaction chamber has a bulkhead that slides during real-time operation to either diminish or expand the internal volume of the backmixing reaction chamber. In one embodiment, the effective passageway space through the bulkhead is also variably adjustable. In another embodiment, the tubular-flow reactor shares the bulkhead so that axial bulkhead movement commensurately expands one reaction space while diminishing the other reaction space. Input gas streams enter the backmixing reaction chamber with sufficient velocity to turbulently agitate the contents of the injectively-mixed backmixing reaction chamber by injective intermixing of the alkane-containing gas feed stream and the oxygen-containing gas feed stream.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: September 3, 2013
    Assignee: Gas Technologies LLC
    Inventors: Nathan A. Pawlak, Robert W. Carr, Roger J. Grunch
  • Patent number: 8293186
    Abstract: An apparatus and method of producing methanol includes reacting a heated hydrocarbon-containing gas and an oxygen-containing gas in a reactor; to provide a product stream comprising methanol; and transferring heat from the product stream to the hydrocarbon-containing gas to heat the hydrocarbon containing gas. After removing methanol and CO2 from the product stream, unprocessed hydrocarbons are mixed with the hydrocarbon containing gas fro reprocessing through the reactor.
    Type: Grant
    Filed: May 11, 2006
    Date of Patent: October 23, 2012
    Assignee: Gas Technologies LLC
    Inventors: Nathan A. Pawlak, Vladimir Ivanovich Vedeneev, Robert W. Carr
  • Patent number: 8193254
    Abstract: An apparatus and method of producing methanol includes reacting a heated hydrocarbon-containing gas and an oxygen-containing gas in a reactor; to provide a product stream comprising methanol; and transferring heat from the product stream to the hydrocarbon-containing gas to heat the hydrocarbon containing gas. After removing methanol and CO2 from the product stream, unprocessed hydrocarbons are mixed with the hydrocarbon containing gas for reprocessing through the reactor. Reactor byproducts are injected into the ground to increase the output of a hydrocarbon producing well.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: June 5, 2012
    Assignee: Gas Technologies LLC
    Inventors: Nathan A. Pawlak, Walter Breidenstein, Robert W. Carr
  • Publication number: 20110127037
    Abstract: An apparatus and method of producing methanol includes reacting a heated hydrocarbon-containing gas and an oxygen-containing gas in a reactor; to provide a product stream comprising methanol; and transferring heat from the product stream to the hydrocarbon-containing gas to heat the hydrocarbon containing gas. After removing methanol and CO2 from the product stream, unprocessed hydrocarbons are mixed with the hydrocarbon containing gas for reprocessing through the reactor. Reactor byproducts are injected into the ground to increase the output of a hydrocarbon producing well.
    Type: Application
    Filed: December 3, 2010
    Publication date: June 2, 2011
    Applicant: GAS TECHNOLOGIES LLC
    Inventors: Nathan A. Pawlak, Walter Breidenstein, Robert W. Carr
  • Publication number: 20110116990
    Abstract: A reactor system for gas phase reacting of at least two fluid feed streams, where the reactor system has an injectively-mixed backmixing reaction chamber in fluid communication with a tubular-flow reactor. The injectively-mixed backmixing reaction chamber has a bulkhead that slides during real-time operation to either diminish or expand the internal volume of the backmixing reaction chamber. In one embodiment, the effective passageway space through the bulkhead is also variably adjustable. In another embodiment, the tubular-flow reactor shares the bulkhead so that axial bulkhead movement commensurately expands one reaction space while diminishing the other reaction space. Input gas streams enter the backmixing reaction chamber with sufficient velocity to turbulently agitate the contents of the injectively-mixed backmixing reaction chamber by injective intermixing of the alkane-containing gas feed stream and the oxygen-containing gas feed stream.
    Type: Application
    Filed: January 31, 2011
    Publication date: May 19, 2011
    Applicant: GAS TECHNOLOGIES LLC
    Inventors: Nathan A. Pawlak, Robert W. Carr, Roger J. Grunch
  • Patent number: 7910787
    Abstract: An apparatus and method of producing methanol includes reacting a heated hydrocarbon-containing gas and an oxygen-containing gas in a reactor; to provide a product stream comprising methanol; and transferring heat from the product stream to the hydrocarbon-containing gas to heat the hydrocarbon containing gas. After removing methanol and CO2 from the product stream, unprocessed hydrocarbons are mixed with the hydrocarbon containing gas for reprocessing through the reactor. Reactor byproducts are injected into the ground to increase the output of a hydrocarbon producing well.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: March 22, 2011
    Assignee: Gas Technologies LLC
    Inventors: Nathan A Pawlak, Walter Breidenstein, Robert W. Carr
  • Patent number: 7879296
    Abstract: A reactor system for gas phase reacting of at least two fluid feed streams, where the reactor system has an injectively-mixed backmixing reaction chamber in fluid communication with a tubular-flow reactor. The injectively-mixed backmixing reaction chamber has a bulkhead that slides during real-time operation to either diminish or expand the internal volume of the backmixing reaction chamber. In one embodiment, the effective passageway space through the bulkhead is also variably adjustable. In another embodiment, the tubular-flow reactor shares the bulkhead so that axial bulkhead movement commensurately expands one reaction space while diminishing the other reaction space. Input gas streams enter the backmixing reaction chamber with sufficient velocity to turbulently agitate the contents of the injectively-mixed backmixing reaction chamber by injective intermixing of the alkane-containing gas feed stream and the oxygen-containing gas feed stream.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: February 1, 2011
    Assignee: Gas Technologies LLC
    Inventors: Nathan A. Pawlak, Robert W. Carr, Roger J Grunch
  • Patent number: 7687669
    Abstract: A method for alkyl oxygenate (e.g., methanol) manufacture via partial oxidation of alkane (methane) uses an injectively-mixed backmixing reaction chamber in fluid communication with a tubular-flow reactor. Alkyl free radicals are induced in the backmixing reaction chamber prior to being fed through a flow-restriction baffle to the tubular-flow reactor. Injective intermixing of feed streams agitates the backmixing reaction chamber. In one embodiment, a variable position flow restriction baffle is axially moved to commensurately modify the backmixing reaction chamber and tubular-flow reactor volumes. In another embodiment, the tubular-flow reactor is quenched with a variable position quenching input. The method further provides for condensing the output stream from the reaction system in a condensing scrubber and also for recycling a portion of the scrubbed output stream to the reactor system.
    Type: Grant
    Filed: November 18, 2008
    Date of Patent: March 30, 2010
    Assignee: Gas Technologies LLC
    Inventors: Nathan A. Pawlak, Robert W. Carr, Roger J. Grunch
  • Patent number: 7578981
    Abstract: An apparatus for alkyl oxygenate (e.g., methanol) manufacture via partial oxidation of alkane (methane) has an injectively-mixed backmixing reaction chamber in fluid communication with a tubular-flow reactor. The injectively-mixed backmixing reaction chamber induces alkyl free radicals prior to input to the tubular-flow reactor. Injective intermixing of feed streams agitates the backmixing reaction chamber. In one embodiment, a variable position bulkhead axially moves to commensurately modify the backmixing reaction chamber and tubular-flow reactor volumes. In another embodiment, the tubular-flow reactor has a variable position quenching input. Both “hairbrush” and conical input inserts facilitate turbulent injective admixing of the input feed streams in the injectively-mixed backmixing reaction chamber. A condensing scrubber is also used for treating the output stream from the reaction system.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: August 25, 2009
    Assignee: Gas Technologies LLC
    Inventors: Nathan A. Pawlak, Robert W. Carr, Roger J Grunch
  • Publication number: 20090118553
    Abstract: A method for alkyl oxygenate (e.g., methanol) manufacture via partial oxidation of alkane (methane) uses an injectively-mixed backmixing reaction chamber in fluid communication with a tubular-flow reactor. Alkyl free radicals are induced in the backmixing reaction chamber prior to being fed through a flow-restriction baffle to the tubular-flow reactor. Injective intermixing of feed streams agitates the backmixing reaction chamber. In one embodiment, a variable position flow restriction baffle is axially moved to commensurately modify the backmixing reaction chamber and tubular-flow reactor volumes. In another embodiment, the tubular-flow reactor is quenched with a variable position quenching input. The method further provides for condensing the output stream from the reaction system in a condensing scrubber and also for recycling a portion of the scrubbed output stream to the reactor system.
    Type: Application
    Filed: November 18, 2008
    Publication date: May 7, 2009
    Inventors: Nathan A. Pawlak, Robert W. Carr, Roger J. Grunch
  • Patent number: 7456327
    Abstract: A method for alkyl oxygenate (e.g., methanol) manufacture via partial oxidation of alkane (methane) uses an injectively-mixed backmixing reaction chamber in fluid communication with a tubular-flow reactor. Alkyl free radicals are induced in the backmixing reaction chamber prior to being fed through a flow-restriction baffle to the tubular-flow reactor. Injective intermixing of feed streams agitates the backmixing reaction chamber. In one embodiment, a variable position flow restriction baffle is axially moved to commensurately modify the backmixing reaction chamber and tubular-flow reactor volumes. In another embodiment, the tubular-flow reactor is quenched with a variable position quenching input. The method further provides for condensing the output stream from the reaction system in a condensing scrubber and also for recycling a portion of the scrubbed output stream to the reactor system.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: November 25, 2008
    Assignee: Gas Technologies, LLC
    Inventors: Nathan A. Pawlak, Robert W. Carr, Roger J Grunch
  • Patent number: 6265626
    Abstract: A method and apparatus for continuously reacting a feed gas to form a product and separating the product from unreacted feed gas is provided. The apparatus includes a plurality of compartments and means for connecting the compartments in a series, with the last compartment in the series being connected to the first compartment in the series to provide a closed loop. Each compartment may include an upstream reaction zone and a downstream separation zone.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: July 24, 2001
    Assignee: Regents of the University of Minnesota
    Inventors: Robert W. Carr, Anna Lee Y. Tonkovich
  • Patent number: 6258993
    Abstract: A method and apparatus for continuously reacting a feed gas to form a product and separating the product from unreacted feed gas is provided. The apparatus includes a plurality of compartments and means for connecting the compartments in a series, with the last compartment in the series being connected to the first compartment in the series to provide a closed loop. Each compartment may include an upstream reaction zone and a downstream separation zone.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: July 10, 2001
    Assignee: Regents of the University of Minnesota
    Inventors: Robert W. Carr, Anna Lee Y. Tonkovich