Patents by Inventor Michael John Girgis

Michael John Girgis 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: 11135575
    Abstract: We provide a process for regenerating a spent acidic ionic liquid, comprising contacting the spent acidic ionic liquid with hydrogen and without an addition of a hydrogenation catalyst; wherein a conjunct polymer content is decreased in the spent acidic ionic liquid to produce regenerated acidic ionic liquid. We also provide a process for making an alkylate gasoline blending component, comprising: a) alkylating a mixture of isoparaffins and olefins using an acidic ionic liquid and an alkyl halide or a hydrogen halide, wherein a conjunct polymer accumulates in a spent acidic ionic liquid; and b) feeding the spent acidic ionic liquid and a hydrogen, and without an addition of a hydrogenation catalyst, to a regeneration reactor operated under selected hydrogenation conditions to produce a regenerated acidic ionic liquid that is used for the alkylating, wherein the conjunct polymer in the regenerated acidic ionic liquid is decreased by at least 50 wt %.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: October 5, 2021
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Michael John Girgis, Huping Luo, Bong Kyu Chang, Hye-Kyung Cho Timken, Steven Xugi Song, Michael Sean Driver
  • Patent number: 10486131
    Abstract: An integrated reactor system for performing an ionic liquid-catalyzed hydrocarbon conversion is provided. The integrated reactor system provides intimate and rapid mixing between hydrocarbon reactants and ionic liquid catalysts while simultaneously removing reaction heat with a heat exchanger that is internal to the hydrocarbon conversion reactor.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: November 26, 2019
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Michael John Girgis, Huping Luo
  • Publication number: 20190126232
    Abstract: We provide an integrated reactor system for performing an ionic liquid-catalyzed hydrocarbon conversion, comprising: a. a bundle of a heat exchanger tubing that extends predominantly through an internal length of a hydrocarbon conversion reactor; b. baffles extending across at least a portion of the hydrocarbon conversion reactor; c. multiple high speed jet flow nozzles configured to direct an ionic liquid catalyst and reactants into the hydrocarbon conversion reactor, external to the heat exchanger tubing; and d. a settling zone internal to the hydrocarbon conversion reactor.
    Type: Application
    Filed: October 26, 2017
    Publication date: May 2, 2019
    Inventors: Michael John Girgis, Huping Luo
  • Patent number: 10173194
    Abstract: We provide systems for ionic liquid catalyzed hydrocarbon conversion that comprise a modular reactor comprising a plurality of mixer modules. The mixer modules may be arranged in series. One or more feed modules are disposed between the mixer modules. Such systems may be used for ionic liquid catalyzed alkylation reactions. Processes for ionic liquid catalyzed hydrocarbon conversion are also disclosed.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: January 8, 2019
    Assignee: Chevron U.S.A. Inc.
    Inventors: Huping Luo, Arthur William Etchells, III, Donald Henry Mohr, Hye Kyung Cho Timken, Moinudden Ahmed, Krishniah Parimi, Bong Kyu Chang, Michael John Girgis
  • Publication number: 20180207629
    Abstract: We provide a process for regenerating a spent acidic ionic liquid, comprising contacting the spent acidic ionic liquid with hydrogen and without an addition of a hydrogenation catalyst; wherein a conjunct polymer content is decreased in the spent acidic ionic liquid to produce regenerated acidic ionic liquid. We also provide a process for making an alkylate gasoline blending component, comprising: a) alkylating a mixture of isoparaffins and olefins using an acidic ionic liquid and an alkyl halide or a hydrogen halide, wherein a conjunct polymer accumulates in a spent acidic ionic liquid; and b) feeding the spent acidic ionic liquid and a hydrogen, and without an addition of a hydrogenation catalyst, to a regeneration reactor operated under selected hydrogenation conditions to produce a regenerated acidic ionic liquid that is used for the alkylating, wherein the conjunct polymer in the regenerated acidic ionic liquid is decreased by at least 50 wt %.
    Type: Application
    Filed: March 22, 2018
    Publication date: July 26, 2018
    Inventors: Michael John Girgis, Huping Luo, Bong Kyu Chang, Hye-Kyung Timken, Steven Xugi Song, Michael Sean Driver
  • Patent number: 10005057
    Abstract: We provide a segmented reactor for regenerating a spent acidic ionic liquid via a hydrogenation reaction and hydrocracking, comprising: no solid hydrogenation catalyst; a gas inlet on one side for feeding a gas feed comprising a hydrogen; a liquid inlet on an opposite side for feeding a spent acidic ionic liquid; partitions along an axis of the reactor that create segments, wherein each segment functions as a bubble column reactor; and an outlet from which a regenerated acidic ionic liquid flows out of the segmented reactor.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: June 26, 2018
    Assignee: Chevron U.S.A. Inc.
    Inventors: Michael John Girgis, Huping Luo
  • Patent number: 9956552
    Abstract: We provide a process for regenerating a spent acidic ionic liquid, comprising contacting the spent acidic ionic liquid with hydrogen and without an addition of a hydrogenation catalyst; wherein a conjunct polymer content is decreased in the spent acidic ionic liquid to produce regenerated acidic ionic liquid. We also provide a process for making an alkylate gasoline blending component, comprising: a) alkylating a mixture of isoparaffins and olefins using an acidic ionic liquid and an alkyl halide or a hydrogen halide, wherein a conjunct polymer accumulates in a spent acidic ionic liquid; and b) feeding the spent acidic ionic liquid and a hydrogen, and without an addition of a hydrogenation catalyst, to a regeneration reactor operated under selected hydrogenation conditions to produce a regenerated acidic ionic liquid that is used for the alkylating, wherein the conjunct polymer in the regenerated acidic ionic liquid is decreased by at least 50 wt %.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: May 1, 2018
    Assignee: Chevron U.S.A. Inc.
    Inventors: Michael John Girgis, Huping Luo, Bong Kyu Chang, Hye-Kyung Timken, Steven Xugi Song, Michael Sean Driver
  • Patent number: 9802186
    Abstract: We provide a segmented reactor for regenerating a spent acidic ionic liquid via hydrogenation and hydrocracking, comprising: no solid hydrogenation catalyst; a gas inlet for feeding a gas feed comprising a hydrogen; a liquid inlet for feeding a spent acidic ionic liquid; partitions along an axis of the reactor that create segments, wherein each segment functions as a bubble column reactor; and an outlet from which a regenerated acidic ionic liquid flow out of the segmented reactor. We also provide a process for regenerating a spent acidic ionic liquid, comprising contacting the spent acidic ionic liquid with hydrogen and without an addition of a solid hydrogenation catalyst in the segmented reactor.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: October 31, 2017
    Assignee: Chevron U.S.A. Inc.
    Inventors: Huping Luo, Michael John Girgis, Hye-Kyung Timken
  • Patent number: 9796642
    Abstract: Systems and apparatus for ionic liquid catalyzed hydrocarbon conversion, such as alkylation, using vaporization to remove reaction heat from an ionic liquid reactor and to provide mixing therein, wherein hydrocarbon vapors are withdrawn from the ionic liquid reactor and the withdrawn hydrocarbon vapor is recovered by a hydrocarbon vapor recovery unit in fluid communication with the ionic liquid reactor for recycling condensed hydrocarbons to the ionic liquid reactor. Processes for ionic liquid catalyzed alkylation are also disclosed.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: October 24, 2017
    Assignee: Chevron U.S.A. Inc.
    Inventors: Donald Henry Mohr, Huping Luo, Clifford Michael Lowe, Hye Kyung Cho Timken, Krishniah Parimi, Michael John Girgis, Bong-Kyu Chang
  • Publication number: 20170216827
    Abstract: We provide a process for regenerating a spent acidic ionic liquid, comprising contacting the spent acidic ionic liquid with hydrogen and without an addition of a hydrogenation catalyst; wherein a conjunct polymer content is decreased in the spent acidic ionic liquid to produce regenerated acidic ionic liquid. We also provide a process for making an alkylate gasoline blending component, comprising: a) alkylating a mixture of isoparaffins and olefins using an acidic ionic liquid and an alkyl halide or a hydrogen halide, wherein a conjunct polymer accumulates in a spent acidic ionic liquid; and b) feeding the spent acidic ionic liquid and a hydrogen, and without an addition of a hydrogenation catalyst, to a regeneration reactor operated under selected hydrogenation conditions to produce a regenerated acidic ionic liquid that is used for the alkylating, wherein the conjunct polymer in the regenerated acidic ionic liquid is decreased by at least 50 wt %.
    Type: Application
    Filed: January 29, 2016
    Publication date: August 3, 2017
    Inventors: Michael John Girgis, Huping Luo, Bong Kyu Chang, Hye-Kyung Timken, Steven Xugi Song, Michael Sean Driver
  • Publication number: 20170216828
    Abstract: We provide a segmented reactor for regenerating a spent acidic ionic liquid via hydrogenation and hydrocracking, comprising: no solid hydrogenation catalyst; a gas inlet for feeding a gas feed comprising a hydrogen; a liquid inlet for feeding a spent acidic ionic liquid; partitions along an axis of the reactor that create segments, wherein each segment functions as a bubble column reactor; and an outlet from which a regenerated acidic ionic liquid flow out of the segmented reactor. We also provide a process for regenerating a spent acidic ionic liquid, comprising contacting the spent acidic ionic liquid with hydrogen and without an addition of a solid hydrogenation catalyst in the segmented reactor.
    Type: Application
    Filed: January 29, 2016
    Publication date: August 3, 2017
    Inventors: Huping Luo, Michael John Girgis, Hye-Kyung Timken
  • Publication number: 20170197195
    Abstract: We provide systems for ionic liquid catalyzed hydrocarbon conversion that comprise a modular reactor comprising a plurality of mixer modules. The mixer modules may be arranged in series. One or more feed modules are disposed between the mixer modules. Such systems may be used for ionic liquid catalyzed alkylation reactions. Processes for ionic liquid catalyzed hydrocarbon conversion are also disclosed.
    Type: Application
    Filed: March 13, 2017
    Publication date: July 13, 2017
    Inventors: Huping Luo, Arthur William Etchells, III, Donald Henry Mohr, Hye Kyung Cho Timken, Moinudden Ahmed, Krishniah Parimi, Bong Kyu Chang, Michael John Girgis
  • Patent number: 9545614
    Abstract: Systems and apparatus for ionic liquid catalyzed hydrocarbon conversion, such as alkylation, using vaporization to remove reaction heat from an ionic liquid reactor and to provide mixing therein, wherein hydrocarbon vapors are withdrawn from the ionic liquid reactor and the withdrawn hydrocarbon vapor is recovered by a hydrocarbon vapor recovery unit in fluid communication with the ionic liquid reactor for recycling condensed hydrocarbons to the ionic liquid reactor. Processes for ionic liquid catalyzed alkylation are also disclosed.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: January 17, 2017
    Assignee: Chevron U.S.A. Inc.
    Inventors: Donald Henry Mohr, Huping Luo, Clifford Michael Lowe, Hye Kyung Cho Timken, Krishniah Parimi, Michael John Girgis, Bong-Kyu Chang
  • Publication number: 20160263547
    Abstract: Systems and apparatus for ionic liquid catalyzed hydrocarbon conversion, such as alkylation, using vaporization to remove reaction heat from an ionic liquid reactor and to provide mixing therein, wherein hydrocarbon vapors are withdrawn from the ionic liquid reactor and the withdrawn hydrocarbon vapor is recovered by a hydrocarbon vapor recovery unit in fluid communication with the ionic liquid reactor for recycling condensed hydrocarbons to the ionic liquid reactor. Processes for ionic liquid catalyzed alkylation are also disclosed.
    Type: Application
    Filed: March 13, 2015
    Publication date: September 15, 2016
    Inventors: Donald Henry Mohr, Huping Luo, Clifford Michael Lowe, Hye Kyung Cho Timken, Krishniah Parimi, Michael John Girgis, Bong-Kyu Chang
  • Publication number: 20160264494
    Abstract: Systems and apparatus for ionic liquid catalyzed hydrocarbon conversion, such as alkylation, using vaporization to remove reaction heat from an ionic liquid reactor and to provide mixing therein, wherein hydrocarbon vapors are withdrawn from the ionic liquid reactor and the withdrawn hydrocarbon vapor is recovered by a hydrocarbon vapor recovery unit in fluid communication with the ionic liquid reactor for recycling condensed hydrocarbons to the ionic liquid reactor. Processes for ionic liquid catalyzed alkylation are also disclosed.
    Type: Application
    Filed: March 13, 2015
    Publication date: September 15, 2016
    Inventors: Donald Henry Mohr, Huping Luo, Clifford Michael Lowe, Hye Kyung Cho Timken, Krishniah Parimi, Michael John Girgis, Bong-Kyu Chang
  • Patent number: 9388093
    Abstract: Systems for ionic liquid catalyzed hydrocarbon conversion comprise a reactor vessel, a mixing device in fluid communication with the reactor vessel, and at least one circulation loop in fluid communication with the reactor vessel and the mixing device. The mixing device may comprise an upper venturi, at least one feed injection component, and a lower venturi. Such systems may be used for ionic liquid catalyzed alkylation reactions. Processes for ionic liquid catalyzed hydrocarbon conversion are also disclosed.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: July 12, 2016
    Assignee: Chevron U.S.A. Inc.
    Inventors: Huping Luo, Moinuddin Ahmed, Krishniah Parimi, Bong Kyu Chang, Michael John Girgis, Donald Henry Mohr, Hye Kyung Cho Timken
  • Publication number: 20160001255
    Abstract: Systems and apparatus for ionic liquid catalyzed hydrocarbon conversion may comprise a modular reactor comprising a plurality of mixer modules. The mixer modules may be arranged in series. One or more feed modules may be disposed between the mixer modules. Such systems may be used for ionic liquid catalyzed alkylation reactions. Processes for ionic liquid catalyzed hydrocarbon conversion are also disclosed.
    Type: Application
    Filed: July 3, 2014
    Publication date: January 7, 2016
    Applicant: Chevron U.S.A. Inc.
    Inventors: Huping Luo, Arthur William Etchells, III, Donald Henry Mohr, Hye Kyung Cho Timken, Moinuddin Ahmed, Krishniah Parimi, Bong Kyu Chang, Michael John Girgis
  • Publication number: 20160002125
    Abstract: Systems for ionic liquid catalyzed hydrocarbon conversion comprise a reactor vessel, a mixing device in fluid communication with the reactor vessel, and at least one circulation loop in fluid communication with the reactor vessel and the mixing device. The mixing device may comprise an upper venturi, at least one feed injection component, and a lower venturi. Such systems may be used for ionic liquid catalyzed alkylation reactions. Processes for ionic liquid catalyzed hydrocarbon conversion are also disclosed.
    Type: Application
    Filed: July 3, 2014
    Publication date: January 7, 2016
    Applicant: Chevron U.S.A. Inc.
    Inventors: Huping Luo, Moinuddin Ahmed, Krishniah Parimi, Bong Kyu Chang, Michael John Girgis, Donald Henry Mohr, Hye Kyung Cho Timken
  • Publication number: 20090299065
    Abstract: A method for preparing an alkali metal salt comprising: (a) condensing a disilyloxydiene with an aldehyde in the presence of a titanium (IV) catalyst in an inert solvent to form a 5(S)-hydroxy-3-ketoester; (b) reducing the 5(S)-hydroxy-3-ketoester to a 3(R),5(S)-dihydroxyester in the presence of a di(lower alkyl)methoxyborane; and (c) hydrolyzing the 3(R),5(S)-dihydroxyester in the presence of an aqueous base to form an alkali metal salt.
    Type: Application
    Filed: July 2, 2009
    Publication date: December 3, 2009
    Inventors: Guang-Pei Chen, Prasad Koteswara Kapa, Eric M. Loeser, Ulrich Beutler, Werner Zaugg, Michael John Girgis
  • Publication number: 20090131707
    Abstract: Improved processes for preparing intermediates useful for preparing antibacterial N-[1-oxo2-alkyl-3-(N-hydroxyformamido)-propyl}-(carbonylamino-aryl or -heteroaryl)-azacyclo4-7alkanes or thiazacyclo4-7alkanes, which have one or more of the following features: (1) make use of a particular I3-lactam intermediate; (2) which make use of a particular resolving agents, enantiomerically pure substituted propionic acids, especially (R)-2-butyl-3-hydroxypropionic acid; (3) which avoid the use of hydrogen peroxide; and (4) which facilitate selective debenzylation reducing production of waste by-products.
    Type: Application
    Filed: November 17, 2008
    Publication date: May 21, 2009
    Applicant: NOVARTIS AG
    Inventors: Mahavir Prashad, Hong-Yong Kim, Bin Hu, Joel Slade, Prasad Koteswara Kapa, Michael John Girgis