Patents by Inventor Xiang-Dong Peng

Xiang-Dong Peng 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: 11897769
    Abstract: A process for producing syngas that uses the syngas product from an oxygen-fired reformer to provide all necessary heating duties, which eliminates the need for a fired heater. Without the flue gas stream leaving a fired heater, all of the carbon dioxide produced by the reforming process is concentrated in the high-pressure syngas stream, allowing essentially complete carbon dioxide capture.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: February 13, 2024
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Xiang-Dong Peng, Yu Zhang, Tori Dawn Courtney
  • Publication number: 20230331549
    Abstract: A process for producing syngas that uses the syngas product from a partial oxidation reactor to provide all necessary heating duties, which eliminates the need for a fired heater. Soot is removed from the syngas using a dry filter to avoid a wet scrubber quenching the syngas stream and wasting the high-quality heat. Without the flue gas stream leaving a fired heater, all of the carbon dioxide produced by the reforming process is concentrated in the high-pressure syngas stream, allowing essentially complete carbon dioxide capture.
    Type: Application
    Filed: June 21, 2023
    Publication date: October 19, 2023
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Xiang-Dong Peng, Henry Choisun Chan, Kelly Danielle Aguilar, Shihong Yan, Qiong Zhou, Shylaja Gowda
  • Publication number: 20230331548
    Abstract: A process for producing syngas that uses the syngas product from an oxygen-fired reformer to provide all necessary heating duties, which eliminates the need for a fired heater. Without the flue gas stream leaving a fired heater, all of the carbon dioxide produced by the reforming process is concentrated in the high-pressure syngas stream, allowing essentially complete carbon dioxide capture.
    Type: Application
    Filed: June 21, 2023
    Publication date: October 19, 2023
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Xiang-Dong Peng, Yu Zhang, Tori Dawn Courtney
  • Patent number: 11753299
    Abstract: A process for producing syngas that uses the syngas product from a partial oxidation reactor to provide all necessary heating duties, which eliminates the need for a fired heater. Soot is removed from the syngas using a dry filter to avoid a wet scrubber quenching the syngas stream and wasting the high-quality heat. Without the flue gas stream leaving a fired heater, all of the carbon dioxide produced by the reforming process is concentrated in the high-pressure syngas stream, allowing essentially complete carbon dioxide capture.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: September 12, 2023
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Xiang-Dong Peng, Henry Choisun Chan, Kelly Danielle Aguilar, Shihong Yan, Qiong Zhou, Shylaja Gowda
  • Publication number: 20230053522
    Abstract: A process for producing syngas that uses the syngas product from a partial oxidation reactor to provide all necessary heating duties, which eliminates the need for a fired heater. Soot is removed from the syngas using a dry filter to avoid a wet scrubber quenching the syngas stream and wasting the high-quality heat. Without the flue gas stream leaving a fired heater, all of the carbon dioxide produced by the reforming process is concentrated in the high-pressure syngas stream, allowing essentially complete carbon dioxide capture.
    Type: Application
    Filed: August 20, 2021
    Publication date: February 23, 2023
    Applicant: Air Products and Chemicals, Inc.
    Inventors: XIANG-DONG PENG, Henry Choisun Chan, Kelly Danielle Aguilar, Shihong Yan, Qiong Zhou, Shylaja Gowda
  • Publication number: 20230059012
    Abstract: A process for producing syngas that uses the syngas product from an oxygen-fired reformer to provide all necessary heating duties, which eliminates the need for a fired heater. Without the flue gas stream leaving a fired heater, all of the carbon dioxide produced by the reforming process is concentrated in the high-pressure syngas stream, allowing essentially complete carbon dioxide capture.
    Type: Application
    Filed: August 20, 2021
    Publication date: February 23, 2023
    Applicant: Air Products and Chemicals, Inc.
    Inventors: XIANG-DONG PENG, YU ZHANG, TORI DAWN COURTNEY
  • Patent number: 11391457
    Abstract: A segregated steam system and process in a hydrogen production facility wherein boiler feed water is heated by indirect heat exchange with a reformate, the heated boiler feed water is used to heat water condensate formed from the reformate, the heated water condensate is passed to a first steam drum for producing steam for a reformer feed gas mixture, and a second portion of the heated boiler feed water is passed to a second steam drum for producing steam for export.
    Type: Grant
    Filed: August 2, 2019
    Date of Patent: July 19, 2022
    Assignee: Air Products and Chemicals, Inc.
    Inventor: Xiang-Dong Peng
  • Patent number: 11173443
    Abstract: Pressure swing adsorption process for reducing fluctuations in the flow rate of tail gas from the adsorption unit and reducing fluctuations in the stoichiometric oxidant flow rate required to completely combust the tail gas in a reformer furnace. Constant flow rate and constant fuel property can be obtained by intelligent mixing designs.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: November 16, 2021
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Xiang-Dong Peng, Elizabeth M. D'Addio, Jeffrey Raymond Hufton, Yu Zhang
  • Patent number: 11052365
    Abstract: Reactive diluent fluid (22) is introduced into a stream of synthesis gas (or “syngas”) produced in a heat-generating unit such as a partial oxidation (“POX”) reactor (12) to cool the syngas and form a mixture of cooled syngas and reactive diluent fluid. Carbon dioxide and/or carbon components and/or hydrogen in the mixture of cooled syngas and reactive diluent fluid is reacted (26) with at least a portion of the reactive diluent fluid in the mixture to produce carbon monoxide-enriched and/or solid carbon depleted syngas which is fed into a secondary reformer unit (30) such as an enhanced heat transfer reformer in a heat exchange reformer process. An advantage of the invention is that problems with the mechanical integrity of the secondary unit arising from the high temperature of the syngas from the heat-generating unit are avoided.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: July 6, 2021
    Inventors: Shoou-I Wang, John Michael Repasky, Shankar Nataraj, Xiang-Dong Peng
  • Publication number: 20210053009
    Abstract: Pressure swing adsorption process for reducing fluctuations in the flow rate of tail gas from the adsorption unit and reducing fluctuations in the stoichiometric oxidant flow rate required to completely combust the tail gas in a reformer furnace. Constant flow rate and constant fuel property can be obtained by intelligent mixing designs.
    Type: Application
    Filed: August 21, 2019
    Publication date: February 25, 2021
    Applicant: Air Products and Chemicals, Inc.
    Inventors: XIANG-DONG PENG, ELIZABETH M. D'ADDIO, JEFFREY RAYMOND HUFTON, YU ZHANG
  • Publication number: 20210033275
    Abstract: A segregated steam system and process in a hydrogen production facility wherein boiler feed water is heated by indirect heat exchange with a reformate, the heated boiler feed water is used to heat water condensate formed from the reformate, the heated water condensate is passed to a first steam drum for producing steam for a reformer feed gas mixture, and a second portion of the heated boiler feed water is passed to a second steam drum for producing steam for export.
    Type: Application
    Filed: August 2, 2019
    Publication date: February 4, 2021
    Applicant: Air Products and Chemicals, Inc.
    Inventor: XIANG-DONG PENG
  • Publication number: 20200215511
    Abstract: Reactive diluent fluid (22) is introduced into a stream of synthesis gas (or “syngas”) produced in a heat-generating unit such as a partial oxidation (“POX”) reactor (12) to cool the syngas and form a mixture of cooled syngas and reactive diluent fluid. Carbon dioxide and/or carbon components and/or hydrogen in the mixture of cooled syngas and reactive diluent fluid is reacted (26) with at least a portion of the reactive diluent fluid in the mixture to produce carbon monoxide-enriched and/or solid carbon depleted syngas which is fed into a secondary reformer unit (30) such as an enhanced heat transfer reformer in a heat exchange reformer process. An advantage of the invention is that problems with the mechanical integrity of the secondary unit arising from the high temperature of the syngas from the heat-generating unit are avoided.
    Type: Application
    Filed: January 9, 2019
    Publication date: July 9, 2020
    Inventors: Shoou-I Wang, John Michael Repasky, Shankar Nataraj, Xiang-Dong Peng
  • Patent number: 10450195
    Abstract: Reactive diluent fluid (22) is introduced into a stream of synthesis gas (or “syngas”) produced in a heat-generating unit such as a partial oxidation (“PDX”) reactor (12) to cool the syngas and form a mixture of cooled syngas and reactive diluent fluid. Carbon dioxide and/or carbon components and/or hydrogen in the mixture of cooled syngas and reactive diluent fluid is reacted (26) with at least a portion of the reactive diluent fluid in the mixture to produce carbon monoxide-enriched and/or solid carbon depleted syngas which is fed into a secondary reformer unit (30) such as an enhanced heat transfer reformer in a heat exchange reformer process. An advantage of the invention is that problems with the mechanical integrity of the secondary unit arising from the high temperature of the syngas from the heat-generating unit are avoided.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: October 22, 2019
    Assignee: Niquan Energy LLC
    Inventors: Shoou-I Wang, John Michael Repasky, Shankar Nataraj, Xiang-Dong Peng
  • Publication number: 20190284047
    Abstract: Reactive diluent fluid (22) is introduced into a stream of synthesis gas (or “syngas”) produced in a heat-generating unit such as a partial oxidation (“POX”) reactor (12) to cool the syngas and form a mixture of cooled syngas and reactive diluent fluid. Carbon dioxide and/or carbon components and/or hydrogen in the mixture of cooled syngas and reactive diluent fluid is reacted (26) with at least a portion of the reactive diluent fluid in the mixture to produce carbon monoxide-enriched and/or solid carbon depleted syngas which is fed into a secondary reformer unit (30) such as an enhanced heat transfer reformer in a heat exchange reformer process. An advantage of the invention is that problems with the mechanical integrity of the secondary unit arising from the high temperature of the syngas from the heat-generating unit are avoided.
    Type: Application
    Filed: January 9, 2019
    Publication date: September 19, 2019
    Inventors: Shoou-I Wang, John Michael Repasky, Shankar Nataraj, Xiang-Dong Peng
  • Publication number: 20170115246
    Abstract: Method and apparatus for determining a heating value of a sample hydrocarbon-containing mixture having hydrocarbons and non-hydrocarbons as mixture components. The sample is reacted with an excess amount of oxidant gas in a reaction chamber to form a product gas containing residual oxygen. The molecular weight of the sample is measured and the residual oxygen concentration of the product gas is measured. The heating value is calculated from the measurements of the molecular weight and the residual oxygen concentration. Pure component hydrocarbon gases may be used to calibrate the system.
    Type: Application
    Filed: June 14, 2016
    Publication date: April 27, 2017
    Applicant: Air Products and Chemicals, Inc.
    Inventors: Blaine Edward Herb, Matthew H. MacConnell, Xiang-Dong Peng
  • Patent number: 9586819
    Abstract: Process for producing hydrogen where multiple streams are heated in parallel with reformate that has passed from the shift reactor. Each of the multiple streams are heated from a temperature below the dew point of the reformate to a temperature above the dew point of the reformate by reformate that is cooled from a temperature above the dew point of the reformate to a temperature below the dew point of the reformate. The multiple streams can include two or more of water condensate, boiler feed water, hydrocarbon feedstock, and pressure swing adsorption unit by-product gas.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: March 7, 2017
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Jianguo Xu, Xiang-Dong Peng
  • Publication number: 20160332876
    Abstract: Process for producing hydrogen where multiple streams are heated in parallel with reformate that has passed from the shift reactor. Each of the multiple streams are heated from a temperature below the dew point of the reformate to a temperature above the dew point of the reformate by reformate that is cooled from a temperature above the dew point of the reformate to a temperature below the dew point of the reformate. The multiple streams can include two or more of water condensate, boiler feed water, hydrocarbon feedstock, and pressure swing adsorption unit by-product gas.
    Type: Application
    Filed: May 15, 2015
    Publication date: November 17, 2016
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Jianguo Xu, Xiang-Dong Peng
  • Patent number: 9309130
    Abstract: Process for producing a hydrogen-containing product and one or more liquid water products using catalytic steam-hydrocarbon reforming. In the process, a portion of the make-up water is heated by the reformate and another portion of the make-up water is heated by the combustion product gas prior to introducing the make-up water to a deaerator. Water in the combustion product gas is condensed to form a liquid water product. The process may be integrated with a thermal water desalination process.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: April 12, 2016
    Assignee: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Xiang-Dong Peng, Derek Miller, Geoffrey Colling Achilles, Xianming Jimmy Li
  • Publication number: 20160016793
    Abstract: Reactive diluent fluid (22) is introduced into a stream of synthesis gas (or “syngas”) produced in a heat-generating unit such as a partial oxidation (“PDX”) reactor (12) to cool the syngas and form a mixture of cooled syngas and reactive diluent fluid. Carbon dioxide and/or carbon components and/or hydrogen in the mixture of cooled syngas and reactive diluent fluid is reacted (26) with at least a portion of the reactive diluent fluid in the mixture to produce carbon monoxide-enriched and/or solid carbon depleted syngas which is fed into a secondary reformer unit (30) such as an enhanced heat transfer reformer in a heat exchange reformer process. An advantage of the invention is that problems with the mechanical integrity of the secondary unit arising from the high temperature of the syngas from the heat-generating unit are avoided.
    Type: Application
    Filed: April 20, 2015
    Publication date: January 21, 2016
    Inventors: Shoou-I Wang, John Michael Repasky, Shankar Nataraj, Xiang-Dong Peng
  • Publication number: 20150110708
    Abstract: Process for producing a hydrogen-containing product and one or more liquid water products using catalytic steam-hydrocarbon reforming. In the process, a portion of the make-up water is heated by the reformate and another portion of the make-up water is heated by the combustion product gas prior to introducing the make-up water to a deaerator. Water in the combustion product gas is condensed to form a liquid water product. The process may be integrated with a thermal water desalination process.
    Type: Application
    Filed: October 23, 2013
    Publication date: April 23, 2015
    Applicant: AIR PRODUCTS AND CHEMICAL INC.
    Inventors: Xiang-Dong Peng, Derek Miller, Geoffrey Colling Achilles, Xianming Jimmy Li