Patents by Inventor Bang Cheng Xu

Bang Cheng Xu 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: 11466218
    Abstract: A catalytic reactor apparatus is disclosed for continuous conversion of plastic wastes into liquid fuels by dispersing a cracking catalyst in molten plastics and cracking plastic macromolecules into smaller hydrocarbons within boiling point range of gasoline and diesel fuel at temperatures significantly lower than thermal pyrolysis and thermal cracking. The catalyst/plastic mixing and heat transfer from the reactor wall to the reaction zone are enhanced using non-Newtonian stirrer. A catalytic membrane filter is used to keep the catalyst fines and unconverted plastic particulates inside the reactor while letting the desirable hydrocarbon vapor be withdrawn out of the reactor.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: October 11, 2022
    Assignee: Molecule Works Inc.
    Inventors: Wei Liu, Bang-Cheng Xu
  • Patent number: 11440797
    Abstract: A process of catalytic partial oxidation of hydrocarbons, particularly methane and/or natural gas to form a product containing hydrogen and carbon monoxide where the first catalyst comprises Co—Ni—Cr—W alloy.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: September 13, 2022
    Inventor: Bang-Cheng Xu
  • Publication number: 20210071088
    Abstract: A catalytic reactor apparatus is disclosed for continuous conversion of plastic wastes into liquid fuels by dispersing a cracking catalyst in molten plastics and cracking plastic macromolecules into smaller hydrocarbons within boiling point range of gasoline and diesel fuel at temperatures significantly lower than thermal pyrolysis and thermal cracking. The catalyst/plastic mixing and heat transfer from the reactor wall to the reaction zone are enhanced using non-Newtonian stirrer. A catalytic membrane filter is used to keep the catalyst fines and unconverted plastic particulates inside the reactor while letting the desirable hydrocarbon vapor be withdrawn out of the reactor.
    Type: Application
    Filed: September 4, 2020
    Publication date: March 11, 2021
    Inventors: Wei LIU, Bang-Cheng XU
  • Publication number: 20210009413
    Abstract: A process of catalytic partial oxidation of hydrocarbons, particularly methane and/or natural gas to form a product containing hydrogen and carbon monoxide where the first catalyst comprises Co—Ni—Cr—W alloy.
    Type: Application
    Filed: July 11, 2019
    Publication date: January 14, 2021
    Inventor: Bang-Cheng XU
  • Patent number: 7981397
    Abstract: A process of catalytic partial oxidation of hydrocarbons, particularly methane and/or natural gas to form a product containing hydrogen and carbon monoxide where the first catalyst at the inlet has a higher thermal conductivity than that of a second catalyst closer to the outlet. The second catalyst closer to the outlet has a higher surface area than that of the first catalyst at the inlet.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: July 19, 2011
    Inventor: Bang-Cheng Xu
  • Patent number: 7922977
    Abstract: A method and apparatus for converting a hydrocarbon and oxygen containing gas feed stream to a product stream, such as syngas, including catalytically partially oxidizing the hydrocarbon feed stream over a catalyst bed. The catalyst bed has a downstream zone which is less resistant to flow than the upstream zone.
    Type: Grant
    Filed: April 12, 2005
    Date of Patent: April 12, 2011
    Assignee: ConocoPhillips Company
    Inventors: Bang Cheng Xu, Sriram Ramani, Kevin L. Ricketson, Gloria I. Straguzzi, Larry D. Swinney, Joe D. Allison
  • Publication number: 20090026420
    Abstract: A process of catalytic partial oxidation of hydrocarbons, particularly methane and/or natural gas to form a product containing hydrogen and carbon monoxide where the first catalyst at the inlet has a higher thermal conductivity than that of a second catalyst closer to the outlet. The second catalyst closer to the outlet has a higher surface area than that of the first catalyst at the inlet.
    Type: Application
    Filed: July 26, 2007
    Publication date: January 29, 2009
    Inventor: Bang-Cheng Xu
  • Publication number: 20090026419
    Abstract: A process of catalytic partial oxidation of hydrocarbons, particularly methane and/or natural gas to form a product containing hydrogen and carbon monoxide where the first catalyst at the inlet has a lower surface area than that of a second catalyst closer to the outlet.
    Type: Application
    Filed: July 23, 2007
    Publication date: January 29, 2009
    Inventor: Bang-Cheng Xu
  • Patent number: 6790431
    Abstract: Embodiments include methods and apparatus for arranging multiple reaction zones such that at least one hot spot in one of the reaction zones is moderated by a cooler spot in an adjacent reaction zone.
    Type: Grant
    Filed: July 16, 2002
    Date of Patent: September 14, 2004
    Assignee: ConocoPhillips Company
    Inventors: Daxiang Wang, Bang Cheng Xu, Yi Jiang
  • Publication number: 20040014826
    Abstract: Embodiments include methods and apparatus for arranging multiple reaction zones such that at least one hot spot in one of the reaction zones is moderated by a cooler spot in an adjacent reaction zone.
    Type: Application
    Filed: July 16, 2002
    Publication date: January 22, 2004
    Applicant: Conoco Inc.
    Inventors: Daxiang Wang, Bang Cheng Xu, Yi Jiang