Patents by Inventor John Q. Chen

John Q. Chen 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).

  • Publication number: 20140058133
    Abstract: Methods and systems are provided for converting methane in a feed stream to acetylene. The method includes processing the acetylene to form a stream having acrylic acid. The hydrocarbon stream is introduced into a supersonic reactor and pyrolyzed to convert at least a portion of the methane to acetylene. The reactor effluent stream is be treated to convert acetylene to acrylic acid. The method according to certain aspects includes controlling the level of carbon monoxide to prevent undesired reactions in downstream processing units.
    Type: Application
    Filed: June 11, 2013
    Publication date: February 27, 2014
    Inventors: Jeffery C. Bricker, John Q. Chen, Peter K. Coughlin
  • Publication number: 20140058127
    Abstract: Methods and systems are provided for converting methane in a feed stream to acetylene. The method includes processing the acetylene to form a stream having vinyl acetate. A hydrocarbon stream is introduced into a supersonic reactor and pyrolyzed to convert at least a portion of the methane to acetylene. The reactor effluent stream is treated to convert acetylene to vinyl acetate. The method according to certain aspects includes controlling the level of carbon monoxide to prevent undesired reactions in downstream processing units.
    Type: Application
    Filed: June 11, 2013
    Publication date: February 27, 2014
    Inventors: Jeffery C. Bricker, John Q. Chen, Peter K. Coughlin
  • Publication number: 20140058156
    Abstract: Methods and systems are provided for converting methane in a feed stream to acetylene. The method includes heat management in the process for further converting the acetylene stream to form a subsequent hydrocarbon stream. The hydrocarbon stream is introduced into a supersonic reactor and pyrolyzed to convert at least a portion of the methane to acetylene. The reactor effluent stream can be used to transfer heat to process streams used in downstream process units, and in particular streams that are fed to endothermic reactors.
    Type: Application
    Filed: August 14, 2013
    Publication date: February 27, 2014
    Inventors: Jeffery C. Bricker, John Q. Chen, Peter K. Coughlin
  • Publication number: 20140058138
    Abstract: Methods and systems are provided for converting methane in a feed stream to butanediol. The method includes processing acetylene as an intermediate stream to form a hydrocarbon stream including butanediol. A hydrocarbon stream is introduced into a supersonic reactor and pyrolyzed to convert at least a portion of the methane to acetylene. The reactor effluent stream is treated to convert acetylene to another hydrocarbon process. The method according to certain aspects includes controlling the level of carbon monoxide to prevent undesired reactions in downstream processing units.
    Type: Application
    Filed: June 11, 2013
    Publication date: February 27, 2014
    Inventors: Jeffery C. Bricker, John Q. Chen, Peter K. Coughlin
  • Publication number: 20140058128
    Abstract: Methods and systems are provided for converting methane in a feed stream to acetylene. The hydrocarbon stream is introduced into a supersonic reactor and pyrolyzed to convert at least a portion of the methane to acetylene. The reactor effluent stream is further processed to generate larger hydrocarbons in a second reactor. The reactor effluent stream can be processed before the second reactor to remove waste products such as carbon monoxide and nitrogen in the reactor effluent stream.
    Type: Application
    Filed: June 11, 2013
    Publication date: February 27, 2014
    Inventors: Jeffery C. Bricker, John Q. Chen, Peter K. Coughlin
  • Publication number: 20140058144
    Abstract: Methods and systems are provided for converting methane in a feed stream to acetylene. The hydrocarbon stream is introduced into a supersonic reactor and pyrolyzed to convert at least a portion of the methane to acetylene. The reactor effluent stream may be treated to convert acetylene to a process stream having aromatic compounds. The acetylene stream can be reacted to generate larger hydrocarbon compounds, which are passed to a cyclization and aromatization reactor to generate aromatics. The method according to certain aspects includes controlling the level of carbon oxides in the hydrocarbon stream.
    Type: Application
    Filed: June 11, 2013
    Publication date: February 27, 2014
    Inventors: Jeffery C. Bricker, John Q. Chen, Peter K. Coughlin
  • Publication number: 20140058145
    Abstract: Methods and systems are provided for converting methane in a feed stream to acetylene. The method includes the further conversion of the acetylene to a hydrocarbon stream having olefins. The hydrocarbon stream is introduced into a supersonic reactor and pyrolyzed to convert at least a portion of the methane to acetylene. The reactor effluent stream is be treated to convert acetylene to another hydrocarbon, and in particular olefins. The method according to certain aspects includes controlling the level of contaminants in the hydrocarbon stream.
    Type: Application
    Filed: August 14, 2013
    Publication date: February 27, 2014
    Inventors: Jeffery C. Bricker, John Q. Chen, Peter K. Coughlin, John J. Senetar, Debarshi Majumder
  • Publication number: 20140058142
    Abstract: Methods and systems are provided for converting methane in a feed stream to acetylene. The method includes processing the acetylene to form a hydrocarbon stream having vinyl chloride. The hydrocarbon stream is introduced into a supersonic reactor and pyrolyzed to convert at least a portion of the methane to acetylene. The reactor effluent stream is be treated to convert acetylene to other hydrocarbon processes. The method according to certain aspects includes controlling the level of carbon monoxide in the hydrocarbon stream to limit downstream side reactions in the downstream processing units.
    Type: Application
    Filed: June 11, 2013
    Publication date: February 27, 2014
    Inventors: Jeffery C. Bricker, John Q. Chen, Peter K. Coughlin
  • Publication number: 20140058146
    Abstract: Methods and systems are provided for converting methane in a feed stream to acetylene. The method includes processing the acetylene to form a stream having butadiene. The hydrocarbon stream is introduced into a supersonic reactor and pyrolyzed to convert at least a portion of the methane to acetylene. The reactor effluent stream is be treated to convert acetylene to butadiene. The method according to certain aspects includes controlling the level of carbon monoxide to prevent undesired reactions in downstream processing units.
    Type: Application
    Filed: June 11, 2013
    Publication date: February 27, 2014
    Inventors: Jeffery C. Bricker, John Q. Chen, Peter K. Coughlin, Debarshi Majumder
  • Publication number: 20140056803
    Abstract: Methods and systems are provided for converting methane in a feed stream to acetylene. The hydrocarbon stream is introduced into a supersonic reactor and pyrolyzed to convert at least a portion of the methane to acetylene. The reactor effluent stream may be treated to convert acetylene to nitrogen based hydrocarbon compounds such as pyridines. The method includes the reaction of acetylene with ammonia and controlling the ratio of acetylene to ammonia to generate the desired nitrogen based hydrocarbon compound.
    Type: Application
    Filed: June 11, 2013
    Publication date: February 27, 2014
    Inventors: Jeffery C. Bricker, John Q. Chen, Peter K. Coughlin, Debarshi Majumder
  • Publication number: 20140058135
    Abstract: Methods and systems are provided for converting methane in a feed stream to acetylene. The method includes processing acetylene as an intermediate stream to form a stream having oxygenates. The hydrocarbon stream is introduced into a supersonic reactor and pyrolyzed to convert at least a portion of the methane to acetylene. The reactor effluent stream may be treated to convert acetylene to oxygenates through subsequent reactors.
    Type: Application
    Filed: June 11, 2013
    Publication date: February 27, 2014
    Inventors: Jeffery C. Bricker, John Q. Chen, Peter K. Coughlin
  • Patent number: 8410319
    Abstract: A catalytic process for generating at least one polyol from a feedstock comprising cellulose is performed in a continuous manner. The process involves, contacting, continuously, hydrogen, water, and a feedstock comprising cellulose, with a catalyst to generate an effluent stream comprising at least one polyol, water, hydrogen, and at least one co-product. The water, hydrogen, and at least one co-product are separated from the effluent stream and recycled to the reaction zone. The polyol is recovered from the effluent stream.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: April 2, 2013
    Assignees: UOP LLC, Dalian Institute of Chemical Physics, Chinese Academy of Sciences
    Inventors: Tom N. Kalnes, John Q. Chen, Joseph A. Kocal, Tao Zhang, Aiqin Wang, Mingyuan Zheng, Changzhi Li, Jifeng Pang
  • Patent number: 8404908
    Abstract: A process is presented for the production of high value chemicals from lignin. The process comprises combining several internal steps to use the hydrogen generated by the process, rather than adding an external source of hydrogen. The process can combine the decomposition of oxygenates formed during the deoxygenation process with hydrogenation of deoxygenated lignin compounds.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: March 26, 2013
    Assignee: UOP LLC
    Inventor: John Q. Chen
  • Patent number: 8323937
    Abstract: A catalytic process for generating at least one polyol from a feedstock comprising cellulose is performed in a continuous manner using a catalyst comprising nickel tungsten carbide. The process involves, contacting, continuously, hydrogen, water, and a feedstock comprising cellulose, with the catalyst to generate an effluent stream comprising at least one polyol and recovering the polyol from the effluent stream.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: December 4, 2012
    Assignees: UOP LLC, Dalian Institute of Chemical Physics
    Inventors: Tao Zhang, Aiqin Wang, Mingyuan Zheng, Changzhi Li, Jifeng Pang, Tom N. Kalnes, John Q. Chen, Joseph A. Kocal
  • Patent number: 8222463
    Abstract: A process for generating at least one polyol from a feedstock comprising saccharide is performed in a continuous or batch manner. The process involves, contacting hydrogen, water, and a feedstock comprising saccharide, with a catalyst system to generate an effluent stream comprising at least one polyol and recovering the polyol from the effluent stream. The catalyst system comprises at least one metal component with an oxidation state greater than or equal to 2+.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: July 17, 2012
    Assignee: UOP LLC
    Inventors: Tom N. Kalnes, Joseph A. Kocal, John Q. Chen
  • Patent number: 8222465
    Abstract: A catalytic process for generating at least one polyol from a feedstock comprising cellulose is performed in a continuous manner. The process involves, contacting, continuously, hydrogen, water, and a feedstock comprising cellulose, with a catalyst to generate an effluent stream comprising at least one polyol, water, hydrogen, and at least one co-product. The water, hydrogen, and at least one co-product are separated from the effluent stream and recycled to the reaction zone. The polyol is recovered from the effluent stream.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: July 17, 2012
    Assignee: UOP LLC
    Inventors: Tom N. Kalnes, John Q. Chen, Joseph A. Kocal
  • Patent number: 8222462
    Abstract: A process for generating at least one polyol from a feedstock comprising saccharide is performed in a continuous or batch manner. The process involves, contacting, hydrogen, water, and a feedstock comprising saccharide, with a catalyst system to generate an effluent stream comprising at least one polyol and recovering the polyol from the effluent stream. The catalyst system comprises at least one unsupported component and at least one supported component.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: July 17, 2012
    Assignee: UOP LLC
    Inventors: Tom N. Kalnes, Joseph A. Kocal, John Q. Chen
  • Patent number: 8222464
    Abstract: A catalytic process for generating at least one polyol from a feedstock comprising cellulose is performed in a continuous manner. The process involves, contacting, continuously, hydrogen, water, and a feedstock comprising cellulose, with a catalyst to generate an effluent stream comprising at least one polyol, water, hydrogen, and at least one co-product. The water, hydrogen, and at least one co-product are separated from the effluent stream and recycled to the reaction zone. The polyol is recovered from the effluent stream.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: July 17, 2012
    Assignee: UOP LLC
    Inventors: Tom N. Kalnes, John Q. Chen, Joseph A. Kocal
  • Publication number: 20120168101
    Abstract: One exemplary embodiment can be a process for reducing one or more insoluble solids in a black liquor. The process may include hydrothermal processing the black liquor to a temperature of about 250-less than about 300° C. for an effective time to reduce the one or more insoluble solids by more than about 40%, by weight, based on a weight of the one or more insoluble solids prior to hydrothermal processing.
    Type: Application
    Filed: September 20, 2011
    Publication date: July 5, 2012
    Applicant: UOP, LLC
    Inventors: John Q. Chen, Mark B. Koch
  • Patent number: 8129576
    Abstract: The invention provides a method to avoid catalyst damage and achieve longer catalyst life by selecting appropriate materials for reactor spacers, liners, catalyst binders, and supports, in particular, by not using crystalline silica-containing and high phosphorus-containing materials, if the presence of even small amount of steam is anticipated. In addition, alkali metals and alkaline earth metals are avoided due to potential damage to the catalyst.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: March 6, 2012
    Assignee: UOP LLC
    Inventors: Timur V. Voskoboynikov, Paul T. Barger, John Q. Chen