Patents by Inventor Jan W. Verwijs

Jan W. Verwijs 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: 8129436
    Abstract: The present invention provides a method for simplifying manufacture of a mixed alcohol or mixed oxygenate product from synthesis gas. The mixed alcohol or mixed oxygenate product contains ethanol and other oxygenates with two or more carbon atoms per molecule. The method includes stripping a portion of carbon dioxide and inert gases contained in a mixed alcohol synthesis reaction product using a methanol-containing stream, such as one produced as part of the method, as a medium to absorb said carbon dioxide and inert gases and recycling light products and heavy products to one or more of synthesis gas generation, mixed alcohol synthesis and separation of desired mixed alcohol or mixed oxygenate products from other components of a mixed alcohol synthesis stream.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: March 6, 2012
    Assignee: Dow Global Technologies LLC
    Inventors: Max M. Tirtowidjojo, Barry B. Fish, Hendrik L. Pelt, Dennis W. Jewell, Mark D. Bearden, John G. Pendergast, Jr., Jon H. Siddall, Brien A. Stears, Haivan D. Tran, Jan W. Verwijs, Aaltje Verwijs-van den Brink, legal representative, Lena Verwijs, legal representative, Hendrika Gerrita Verwijs, legal representative, Richard M. Wehmeyer
  • Publication number: 20110152580
    Abstract: A process for converting multihydroxylated-aliphatic hydrocarbon compound(s) and/or ester(s) thereof to chlorohydrins and/or esters thereof is disclosed in which one or more of multihydroxylated-aliphatic hydrocarbon compound(s) and/or ester(s) thereof and/or monochlorohydrin(s) and/or ester(s) thereof with at least one chlorinating feed stream comprising at least one chlorinating agent and at least one impurity having a boiling point below the boiling point of the chlorohydrin product having the lowest boiling under hydrochlorination conditions, optionally in the presence of water, one or more catalyst(s), and/or one or more heavy byproduct(s) in a reaction vessel under hydrochlorination conditions, wherein the liquid-phase reaction mixture is maintained at a temperature below the boiling point of the chlorohydrin product having the lowest boiling point under hydrochlorination conditions and greater than the boiling point(s) of the at least one impurity and a vapor phase vent stream comprising the at least o
    Type: Application
    Filed: April 11, 2008
    Publication date: June 23, 2011
    Inventors: Bruce D. Hook, Anna Forlin, Andrei S. Merenov, Danil Tirtowidjolo, Anil J. Mehta, Jan W. Verwijs, Aaltje Verwijs-van den Brink, Lena Verwijs, Hendrika Gerrita Verwijs, Wilma Hensen
  • Publication number: 20100069515
    Abstract: The present invention provides a method for simplifying manufacture of a mixed alcohol or mixed oxygenate product from synthesis gas. The mixed alcohol or mixed oxygenate product contains ethanol and other oxygenates with two or more carbon atoms per molecule. The method includes stripping a portion of carbon dioxide and inert gases contained in a mixed alcohol synthesis reaction product using a methanol-containing stream, such as one produced as part of the method, as a medium to absorb said carbon dioxide and inert gases and recycling light products and heavy products to one or more of synthesis gas generation, mixed alcohol synthesis and separation of desired mixed alcohol or mixed oxygenate products from other components of a mixed alcohol synthesis stream.
    Type: Application
    Filed: March 21, 2007
    Publication date: March 18, 2010
    Inventors: Max M. Tirtowidjojo, Barry B. Fish, Hendrik L. Pelt, Dennis W. Jewell, Mark D. Bearden, John G. Pendergast, JR., Jon H. Siddall, Brien A. Stears, Haivan D. Tran, Jan W. Verwijs, Richard M. Wehmeyer
  • Publication number: 20080221281
    Abstract: A continuous process and system for producing polyether polyols that allows for continuously adding an unreacted oxide to a loop reactor while adding at least one thermally deactivating catalyst capable of thermally deactivating prior to decomposition of polyether polyol which can allow for greater concentrations of unreacted oxides and/or a rate of reaction in the loop reactor is at a rate at least two times faster than a rate of reaction in a loop reactor containing less than 14 weight percent unreacted oxide. In a preferred embodiment, the catalyst is a double metal cyanide catalyst and a plug flow reactor is formed in series with the loop reactor wherein neither reactor contains a vapor space.
    Type: Application
    Filed: March 25, 2008
    Publication date: September 11, 2008
    Applicant: Dow Global Technologies Inc.
    Inventors: Jan W. Verwijs, Walter J. S. Papadopulos, John W. Weston, Richard J. Elwell, Carlos M. Villa
  • Patent number: 7378559
    Abstract: A continuous process and system for producing polyether polyols that allows for continuously adding an unreacted oxide to a loop reactor while adding at least one thermally deactivating catalyst capable of thermally deactivating prior to decomposition of polyether polyol which can allow for greater concentrations of unreacted oxides and/or a rate of reaction in the loop reactor is at a rate at least two times faster than a rate of reaction in a loop reactor containing less than 14 weight percent unreacted oxide. In a preferred embodiment, the catalyst is a double metal cyanide catalyst and a plug flow reactor is formed in series with the loop reactor wherein neither reactor contains a vapor space.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: May 27, 2008
    Assignee: Dow Global Technologies Inc.
    Inventors: Jan W. Verwijs, John W. Weston, Walter J. S. Papadopulos, Richard J. Elwell, Carlos M. Villa