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).

  • CATALYTIC PROCESS FOR CONTINUOUSLY GENERATING POLYOLS
    Publication number: 20110313209
    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: Application
    Filed: July 28, 2011
    Publication date: December 22, 2011
    Applicant: UOP LLC
    Inventors: Tom N. Kalnes, John Q. Chen, Joseph A. Kocal
  • CATALYST SYSTEM FOR GENERATION OF POLYOLS FROM SACCHARIDE CONTAINING FEEDSTOCK
    Publication number: 20110312488
    Abstract: A catalyst system for generating at least one polyol from a feedstock comprising saccharide is disclosed. Generating the polyol 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: Application
    Filed: July 28, 2011
    Publication date: December 22, 2011
    Applicant: UOP LLC
    Inventors: John Q. Chen, Tom N. Kalnes, Joseph A. Kocal
  • PROCESS FOR GENERATION OF POLYOLS FROM SACCHARIDE CONTAINING FEEDSTOCK
    Publication number: 20110312051
    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: Application
    Filed: July 28, 2011
    Publication date: December 22, 2011
    Applicant: UOP LLC
    Inventors: Tom A. Kalnes, Joseph A. Kocal, John Q. Chen
  • PROCESS FOR GENERATION OF POLYOLS FROM SACCHARIDES
    Publication number: 20110313208
    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: Application
    Filed: July 28, 2011
    Publication date: December 22, 2011
    Applicant: UOP LLC
    Inventors: Tom N. Kalnes, Joseph A. Kocal, John Q. Chen
  • CONTINUOUS CATALYTIC GENERATION OF POLYOLS FROM CELLULOSE WITH RECYCLE
    Publication number: 20110313212
    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: Application
    Filed: July 28, 2011
    Publication date: December 22, 2011
    Applicant: UOP LLC
    Inventors: Tom N. Kalnes, John Q. Chen, Joseph A. Kocal, Tao Zhang, Aiqin Wang, Mingyuan Zheng, Changzhi Li, Jifeng Pang
  • CONTINUOUS CATALYTIC GENERATION OF POLYOLS FROM CELLULOSE
    Publication number: 20110312050
    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: Application
    Filed: July 28, 2011
    Publication date: December 22, 2011
    Applicant: UOP LLC
    Inventors: Tao Zhang, Aiqin Wang, Mingyuan Zheng, Changzhi Li, Jifeng Pang, Tom N. Kalnes, John Q. Chen, Joseph A. Kocal
  • CATALYST SYSTEM FOR GENERATION OF POLYOLS FROM SACCHARIDES
    Publication number: 20110312487
    Abstract: A catalyst system for generating at least one polyol from a feedstock comprising saccharide is performed in a continuous or batch manner. Generating the polyol 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: Application
    Filed: July 28, 2011
    Publication date: December 22, 2011
    Applicant: UOP LLC
    Inventors: John Q. Chen, Tom N. Kalnes, Joseph A. Kocal
  • CATALYTIC PROCESS FOR CONTINUOUSLY GENERATING POLYOLS
    Publication number: 20110313210
    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: Application
    Filed: July 28, 2011
    Publication date: December 22, 2011
    Applicant: UOP LLC
    Inventors: Tom N. Kalnes, John Q. Chen, Joseph A. Kocal
  • Enhancement of molecular sieve performance
    Patent number: 7977273
    Abstract: A catalyst for converting methanol to light olefins and the process for making and using the catalyst are disclosed and claimed. SAPO-34 is a specific catalyst that benefits from its preparation in accordance with this invention. A seed material is used in making the catalyst that has a higher content of the EL metal than is found in the principal part of the catalyst. The molecular sieve has predominantly a roughly rectangular parallelepiped morphology crystal structure with a lower fault density and a better selectivity for light olefins.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: July 12, 2011
    Assignee: UOP LLC
    Inventors: Wharton Sinkler, Robert W. Broach, Natasha Erdman, Thomas M. Reynolds, John Q. Chen, Stephen T. Wilson, Paul T. Barger
  • Enhancement of molecular sieve performance
    Patent number: 7973208
    Abstract: A catalyst for converting methanol to light olefins and the process for making and using the catalyst are disclosed and claimed. SAPO-34 is a specific catalyst that benefits from its preparation in accordance with this invention. A seed material is used in making the catalyst that has a higher content of the EL metal than is found in the principal part of the catalyst. The molecular sieve has predominantly a roughly rectangular parallelepiped morphology crystal structure with a lower fault density and a better selectivity for light olefins.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: July 5, 2011
    Assignee: UOP LLC
    Inventors: Wharton Sinkler, Robert W. Broach, Natasha Erdman, Thomas M. Reynolds, John Q. Chen, Stephen T. Wilson, Paul T. Barger
  • Enhancement of molecular sieve performance
    Patent number: 7972989
    Abstract: A catalyst for converting methanol to light olefins and the process for making and using the catalyst are disclosed and claimed. SAPO-34 is a specific catalyst that benefits from its preparation in accordance with this invention. A seed material is used in making the catalyst that has a higher content of the EL metal than is found in the principal part of the catalyst. The molecular sieve has predominantly a roughly rectangular parallelepiped morphology crystal structure with a lower fault density and a better selectivity for light olefins.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: July 5, 2011
    Assignee: UOP LLC
    Inventors: Wharton Sinkler, Robert W. Broach, Natasha Erdman, Thomas M. Reynolds, John Q. Chen, Stephen T. Wilson, Paul T. Barger
  • Methanol-to-olefins process with reduced coking
    Patent number: 7763766
    Abstract: A process for producing light olefins from oxygenates wherein internal reactor are protected from metal-catalyzed coking preferably by employing a protective layer.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: July 27, 2010
    Assignee: UOP LLC
    Inventors: Andrea G. Bozzano, Steven A. Bradley, Ricardo L. Castillo, John Q. Chen
  • Combination of Hydrogenation and Base Catalyzed Depolymerization for Lignin Conversion
    Publication number: 20100137663
    Abstract: A process for the conversion of lignin to chemical precursors is presented. The process comprises treating the lignin to form less acidic compounds. The process includes reacting lignin with a hydrogenation catalyst under a hydrogen atmosphere to convert acidic oxygenate compounds to less acidic oxygenates or hydrocarbons. The oxygenate compounds are reacted in a dehydrogenation and deoxygenation process to remove the oxygen and to convert the cyclic hydrocarbons back to aromatic compounds.
    Type: Application
    Filed: February 27, 2009
    Publication date: June 3, 2010
    Inventors: John Q. Chen, Mark B. Koch
  • Process for Lignin Conversion to Chemicals or Fuels with H2 Generated from Lignin Depolymerization Products
    Publication number: 20100137665
    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: Application
    Filed: October 13, 2009
    Publication date: June 3, 2010
    Applicant: UOP LLC
    Inventor: John Q. Chen
  • PROTECTION OF SOLID ACID CATALYSTS FROM DAMAGE BY VOLATILE SPECIES
    Publication number: 20100081564
    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: Application
    Filed: December 7, 2009
    Publication date: April 1, 2010
    Applicant: UOP LLC
    Inventors: Timur V. Voskoboynikov, Paul T. Barger, John Q. Chen
  • Enhancement of Molecular Sieve Performance
    Publication number: 20090209406
    Abstract: A catalyst for converting methanol to light olefins and the process for making and using the catalyst are disclosed and claimed. SAPO-34 is a specific catalyst that benefits from its preparation in accordance with this invention. A seed material is used in making the catalyst that has a higher content of the EL metal than is found in the principal part of the catalyst. The molecular sieve has predominantly a roughly rectangular parallelepiped morphology crystal structure with a lower fault density and a better selectivity for light olefins.
    Type: Application
    Filed: April 28, 2009
    Publication date: August 20, 2009
    Inventors: WHARTON SINKLER, ROBERT W. BROACH, NATASHA ERDMAN, THOMAS M. REYNOLDS, JOHN Q. CHEN, STEPHEN T. WILSON, PAUL T. BARGER
  • Enhancement of Molecular Sieve Performance
    Publication number: 20090209798
    Abstract: A catalyst for converting methanol to light olefins and the process for making and using the catalyst are disclosed and claimed. SAPO-34 is a specific catalyst that benefits from its preparation in accordance with this invention. A seed material is used in making the catalyst that has a higher content of the EL metal than is found in the principal part of the catalyst. The molecular sieve has predominantly a roughly rectangular parallelepiped morphology crystal structure with a lower fault density and a better selectivity for light olefins.
    Type: Application
    Filed: April 28, 2009
    Publication date: August 20, 2009
    Inventors: WHARTON SINKLER, ROBERT W. BROACH, NATASHA ERDMAN, THOMAS M. REYNOLDS, JOHN Q. CHEN, STEPHEN T. WILSON, PAUL T. BARGER
  • Enhancement of Molecular Sieve Performance
    Publication number: 20090209411
    Abstract: A catalyst for converting methanol to light olefins and the process for making and using the catalyst are disclosed and claimed. SAPO-34 is a specific catalyst that benefits from its preparation in accordance with this invention. A seed material is used in making the catalyst that has a higher content of the EL metal than is found in the principal part of the catalyst. The molecular sieve has predominantly a roughly rectangular parallelepiped morphology crystal structure with a lower fault density and a better selectivity for light olefins.
    Type: Application
    Filed: April 28, 2009
    Publication date: August 20, 2009
    Inventors: Wharton Sinkler, Robert W. Broach, Natasha Erdman, Thomas M. Reynolds, John Q. Chen, Stephen T. Wilson, Paul T. Barger
  • Methods for recovering activity of molecular sieve catalysts
    Patent number: 7550403
    Abstract: The invention is directed to a method of rejuvenating silicoaluminophosphate molecular sieve catalyst that has been deactivated hydrothermally as well as a method of using the rejuvenated catalyst to make an olefin product from an oxygenate feed. In particular, the invention is directed to rejuvenating the catalyst by contacting it with warm water, ammonium salts, dilute acids or low pressure steam until the catalytic activity level of the catalyst has been increased to the desired extent.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: June 23, 2009
    Assignee: UOP LLC
    Inventor: John Q. Chen
  • Methods for recovering activity of molecular sieve catalysts
    Patent number: 7550641
    Abstract: The invention is directed to a method of rejuvenating silicoaluminophosphate molecular sieve catalyst that has been deactivated hydrothermally as well as a method of using the rejuvenated catalyst to make an olefin product from an oxygenate feed. In particular, the invention is directed to rejuvenating the catalyst by contacting it with warm water, ammonium salts, dilute acids or low pressure steam until the catalytic activity level of the catalyst has been increased to the desired extent.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: June 23, 2009
    Assignee: UOP LLC
    Inventor: John Q. Chen