Patents by Inventor Dionysius Jacobus Maria DE VLIEGER

Dionysius Jacobus Maria DE VLIEGER 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: 20190202760
    Abstract: The invention provides a process for the preparation of glycols from a saccharide-containing feedstock in a reactor system, said process comprising: i) providing a first feed stream comprising said saccharide-containing feedstock in a first solvent at a N temperature of no more than 160° C.; ii) providing a second feed stream comprising a tungsten-based retro-aldol catalytic species and an alkali metal containing species in a second solvent at a temperature in the range of from 150 to 250° C.; iii) combining the first feed stream and the second feed stream, before they are provided to the reactor system, to form a combined feed stream; iv) providing the combined feed stream to the reactor system and operating the reactor at a temperature in the range of from 150° C. to 250° C.; and v) also contacting the combined feed stream with a hydrogenation catalytic species in the presence of hydrogen, wherein the molar ratio of alkali metal:tungsten in the combined feed stream is in the range of from 0.55 to 6.
    Type: Application
    Filed: August 2, 2017
    Publication date: July 4, 2019
    Inventors: Evert VAN DER HEIDE, Pieter HUIZENGA, Dionysius Jacobus Maria DE VLIEGER
  • Patent number: 10336671
    Abstract: A process for recovering a metallic component from a hydrocarbon product stream is disclosed. The hydrocarbon product stream is subjected to a thermal oxidation. A process for preparing glycols from a saccharide-containing feedstock is additionally disclosed.
    Type: Grant
    Filed: September 5, 2016
    Date of Patent: July 2, 2019
    Assignee: SHELL OIL COMPANY
    Inventors: Hendrik Albertus Colijn, Dionysius Jacobus Maria De Vlieger
  • Publication number: 20190111413
    Abstract: A process for the preparation of a catalyst composition for catalysing hydrogenation and hydrogenolysis reactions wherein, (a) a carbon support is contacted with a catalyst precursor solution comprising at least one element from groups 7, 8, 9, 10 and 11 of 5 the periodic table to form a metal impregnated carbon; (b) the metal impregnated carbon is dried at a temperature of no greater than 400° C. and placed in a reactor vessel; (c) the reactor vessel is sealed; and (d) the metal impregnated carbon is treated in the reactor 10 vessel in an atmosphere comprising hydrogen at a temperature of from 25° C. to 350 ° C.
    Type: Application
    Filed: April 7, 2017
    Publication date: April 18, 2019
    Inventors: Hendrik Albertus COLIJN, Dionysius Jacobus Maria DE VLIEGER
  • Publication number: 20190047929
    Abstract: The invention provides a process for the selective hydrogenation of glycolaldehyde in a process stream comprising glycolaldehyde and one or more monosaccharide in a solvent, said process comprising contacting the process stream with hydrogen in the presence of a hydrogenation catalyst composition at a temperature of no more than 150° C. and for a residence time of no more than 90 minutes.
    Type: Application
    Filed: February 6, 2017
    Publication date: February 14, 2019
    Inventors: Dionysius Jacobus Maria DE VLIEGER, Pieter HUIZENGA, Evert VAN DER HEIDE, Smita EDULJI, Jean Paul Andre Marie Joseph Ghislain LANGE
  • Publication number: 20190039979
    Abstract: The invention provides a process for the production of alkylene glycols, said process comprising providing a feed comprising at least 10 wt % of lignocellulose and/or one or more saccharides, on the basis of the overall feed, in water to a reactor; also providing a feed comprising one or more hydrogen-donating organic solvent species to the reactor; contacting the lignocellulose and/or one or more saccharides in the reactor with a retro-aldol catalyst composition at a temperature in the range of from at least 160 to at most 270° C., wherein the combined solvent system within the reactor comprises in the range of from at least 5 to at most 95 wt % of one or more hydrogen-donating organic solvent species and in the range of from at least 5 to at most 95 wt % of water.
    Type: Application
    Filed: February 8, 2017
    Publication date: February 7, 2019
    Inventors: Evert VAN DER HEIDE, Pieter HUIZENGA, Dionysius Jacobus Maria DE VLIEGER
  • Publication number: 20180361357
    Abstract: A catalytic process for the hydrogenation or hydrogenolysis of a reactant in a reactor in the presence of hydrogen and liquid water is disclosed. The catalyst is stable under hydrothermal conditions.
    Type: Application
    Filed: December 15, 2016
    Publication date: December 20, 2018
    Inventors: Dionysius Jacobus Maria DE VLIEGER, Jean Paul Andre Marie Joseph Ghislain LANGE, Hendrik Albertus COLIJN, Smita EDULJI
  • Publication number: 20180345256
    Abstract: The invention provides a catalyst system comprising: a) one or more Group 1 metal phosphotungstate-containing species; and b) one or more catalytic species suitable for hydrogenation; and a process for the preparation of monoethylene glycol from starting material comprising one or more saccharides, by contacting said starting material with hydrogen in a reactor in the presence of a solvent and said catalyst system.
    Type: Application
    Filed: November 17, 2016
    Publication date: December 6, 2018
    Inventors: Reinhard GEYER, Henri PREISING, Dionysius Jacobus Maria DE VLIEGER, Smita EDULJI, Evert VAN DER HEIDE, Jean Paul Andre Marie Joseph Ghislain LANGE
  • Publication number: 20180244594
    Abstract: A process for recovering a metallic component from a hydrocarbon product stream is disclosed. The hydrocarbon product stream is subjected to a thermal oxidation. A process for preparing glycols from a saccharide-containing feedstock is additionally disclosed.
    Type: Application
    Filed: September 5, 2016
    Publication date: August 30, 2018
    Inventors: Hendrik Albertus COLIJN, Dionysius Jacobus Maria DE VLIEGER