Patents by Inventor Stephen Arthur Yows
Stephen Arthur Yows 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: 10392250Abstract: A reactor system for partial oxidation gasification includes a reactor vessel that has a defined reaction zone with a reaction zone inlet and a reaction zone outlet. An injector section is operable to inject reactants to the reaction zone inlet. A coolant injector is operable to inject a coolant adjacent a reaction zone outlet. A reactor vessel outlet is located downstream of the coolant injector. A controller is configured to operate the coolant injector with respect to cooling a synthesis gas discharged from the reaction zone outlet and upwardly shifting a ratio H2:CO to a target ratio.Type: GrantFiled: May 14, 2014Date of Patent: August 27, 2019Assignee: GAS TECHNOLOGY INSTITUTEInventors: Steven P. Fusselman, Stephen Arthur Yows, Lisa Bayne, Seth D. Hahn
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Patent number: 9926501Abstract: An entrained-flow gasifier reactor includes a vessel and a first liner within the vessel. The first liner extends around a reaction zone in the vessel and has an inlet end and an exit end with respect to the reaction zone. The first liner includes a drip lip at the exit end. An isolator is arranged near the drip lip. The isolator is operable to thermally isolate the drip lip from a quench zone downstream from the reaction zone such that molten slag at the drip lip remains molten.Type: GrantFiled: June 2, 2014Date of Patent: March 27, 2018Assignee: Gas Technology InstituteInventors: Stephen Arthur Yows, Steven P. Fusselman
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Publication number: 20160332875Abstract: A reactor system for partial oxidation gasification includes a reactor vessel that has a defined reaction zone with a reaction zone inlet and a reaction zone outlet. An injector section is operable to inject reactants to the reaction zone inlet. A coolant injector is operable to inject a coolant adjacent a reaction zone outlet. A reactor vessel outlet is located downstream of the coolant injector. A controller is configured to operate the coolant injector with respect to cooling a synthesis gas discharged from the reaction zone outlet and upwardly shifting a ratio H2:CO to a target ratio.Type: ApplicationFiled: May 14, 2014Publication date: November 17, 2016Applicant: GAS TECHNOLOGY INSTITUTEInventors: Steven P. FUSSELMAN, Stephen Arthur YOWS, Lisa BAYNE, Seth D. HAHN
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Publication number: 20160137935Abstract: An entrained-flow gasifier reactor includes a vessel and a first liner within the vessel. The first liner extends around a reaction zone in the vessel and has an inlet end and an exit end with respect to the reaction zone. The first liner includes a drip lip at the exit end. An isolator is arranged near the drip lip. The isolator is operable to thermally isolate the drip lip from a quench zone downstream from the reaction zone such that molten slag at the drip lip remains molten.Type: ApplicationFiled: June 2, 2014Publication date: May 19, 2016Applicant: Gas Technology InstituteInventors: Stephen Arthur YOWS, Steven P. FUSSELMAN
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Patent number: 9249367Abstract: An impingement injector includes an injector core having a plurality of conduits. The conduits include a first conduit and second conduits disposed circumferentially around the first conduit. The second conduits are at an impinging angle with respect to the first conduit. Replaceable, tunable jets are disposed in corresponding ones of the second conduits.Type: GrantFiled: July 6, 2012Date of Patent: February 2, 2016Assignee: Gas Technology InstituteInventor: Stephen Arthur Yows
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Patent number: 8771604Abstract: A liner for use within a gasifier vessel includes a plurality of elongated channels and a plurality of ceramic sheaths. The elongated channels pass coolant through the gasifier. The ceramic sheaths surround the elongated channels.Type: GrantFiled: February 6, 2007Date of Patent: July 8, 2014Assignee: Aerojet Rocketdyne of DE, Inc.Inventors: Mark A. Fitzsimmons, Stephen Arthur Yows, Steven P. Fusselman
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Patent number: 8673234Abstract: A reactor vessel liner system includes a liner having an inner wall, an outer wall, and a plurality of passages extending between the inner wall and the outer wall. An attachment member extends outwards from the outer wall for securing the liner.Type: GrantFiled: March 4, 2008Date of Patent: March 18, 2014Assignee: Aerojet Rocketdyne of DE, Inc.Inventors: Stephen Arthur Yows, Steven P. Fusselman, Bryan William McEnerney, Kenneth M. Sprouse
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Publication number: 20140008466Abstract: An impingement injector includes an injector core having a plurality of conduits. The conduits include a first conduit and second conduits disposed circumferentially around the first conduit. The second conduits are at an impinging angle with respect to the first conduit. Replaceable, tunable jets are disposed in corresponding ones of the second conduits.Type: ApplicationFiled: July 6, 2012Publication date: January 9, 2014Inventor: Stephen Arthur Yows
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Patent number: 7972572Abstract: A reactor vessel liner system includes a liner having a plurality of first conduits and a plurality of second conduits for conveying a coolant. The plurality of second conduits is located at least partially within corresponding ones of the plurality of first conduits.Type: GrantFiled: March 4, 2008Date of Patent: July 5, 2011Assignee: Pratt & Whitney Rocketdyne, Inc.Inventors: Steven P. Fusselman, Stephen Arthur Yows, Bryan William McEnerney, Kenneth M. Sprouse
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Patent number: 7740671Abstract: A dump-cooled gasifier includes a vessel, a liner, and coolant. The liner has a head end, an aft end, and a plurality of channels extending along a length of the vessel. The aft end of the liner is axially and radially expandable with respect to the head end of the liner. The coolant enters at the head end of the liner, flows through the liner, and is expelled from the aft end of the liner directly into the vessel.Type: GrantFiled: December 18, 2006Date of Patent: June 22, 2010Assignee: Pratt & Whitney Rocketdyne, Inc.Inventors: Stephen Arthur Yows, Steven P. Fusselman
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Publication number: 20090226349Abstract: A reactor vessel liner system includes a liner having an inner wall, an outer wall, and a plurality of passages extending between the inner wall and the outer wall. An attachment member extends outwards from the outer wall for securing the liner.Type: ApplicationFiled: March 4, 2008Publication date: September 10, 2009Inventors: Stephen Arthur Yows, Steven P. Fusselman, Bryan William McEnerney, Kenneth M. Sprouse
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Publication number: 20090226350Abstract: A reactor vessel liner system includes a liner having a plurality of first conduits and a plurality of second conduits for conveying a coolant. The plurality of second conduits is located at least partially within corresponding ones of the plurality of first conduits.Type: ApplicationFiled: March 4, 2008Publication date: September 10, 2009Inventors: Steven P. Fusselman, Stephen Arthur Yows, Bryan William McEnerney, Kenneth M. Sprouse
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Publication number: 20080187877Abstract: A liner for use within a gasifier vessel includes a plurality of elongated channels and a plurality of ceramic sheaths. The elongated channels pass coolant through the gasifier. The ceramic sheaths surround the elongated channels.Type: ApplicationFiled: February 6, 2007Publication date: August 7, 2008Applicant: Pratt & Whitney Rocketdyne Inc.Inventors: Mark Andrew Fitzsimmons, Stephen Arthur Yows, Steven P. Fusselman
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Publication number: 20080141913Abstract: A dump-cooled gasifier includes a vessel, a liner, and coolant. The liner has a head end, an aft end, and a plurality of channels extending along a length of the vessel. The aft end of the liner is axially and radially expandable with respect to the head end of the liner. The coolant enters at the head end of the liner, flows through the liner, and is expelled from the aft end of the liner directly into the vessel.Type: ApplicationFiled: December 18, 2006Publication date: June 19, 2008Applicant: Pratt & Whitney Rocketdyne, Inc.Inventors: Stephen Arthur Yows, Steven P. Fusselman