Patents by Inventor Christopher M. Lew

Christopher M. Lew 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).

  • Alkylation reaction using delaminated zeolite supports as catalysts
    Patent number: 10253270
    Abstract: Provided is an improved alkylation process using a delaminated SSZ-70 catalyst. The process comprises contacting a hydrocarbon feedstock comprising olefins and isoparaffins with a catalyst comprising delaminated SSZ-70 under alkylating reaction conditions. The delaminated SSZ-70 offers a zeolite layer with a single unit cell of thickness in one dimension, allowing an elimination of mass transfer in comparison with regular SSZ-70. This prevents coke formation inside zeolite channels and improves catalyst stability.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: April 9, 2019
    Assignee: Chevron U.S.A. Inc.
    Inventors: Bi-Zeng Zhan, Stacey Ian Zones, Christopher M. Lew
  • Olefin oligomerization using delaminated zeolite supports as catalyst
    Patent number: 9783461
    Abstract: Provided is an improved process for olefin oligomerization allowing one to realize superior selectivity. The process comprises contacting a hydrocarbon feed comprised of straight and branched chain olefins under oligomerization conditions with a catalyst comprising delaminated SSZ-70. The delaminated SSZ-70 offers a zeolite layer with a single unit cell of thickness in one dimension, allowing for elimination of mass transfer in comparison with regular SSZ-70. The result is superior selectivity.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: October 10, 2017
    Assignee: Chevron U.S.A. Inc.
    Inventors: Bi-Zeng Zhan, Stacey Ian Zones, Christopher M. Lew
  • Hydroprocessing of hydrocarbons using delaminated zeolite supports as catalysts
    Patent number: 9738838
    Abstract: Provided is an improved hydroprocessing process allowing one to realize superior isoselectivity. The process comprises contacting a feed comprised of normal hydrocarbons under hydroprocessing conditions with a catalyst comprising delaminated SSZ-70. The delaminated SSZ-70 has been found to provide unexpected improvements in the catalysis of hydroprocessing hydrocarbons. Delaminated SSZ-70 offers a zeolite layer with a single unit cell of thickness in one dimension, allowing an elimination of mass transfer in comparison with non-delaminated SSZ-70.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: August 22, 2017
    Assignee: Chevron U.S.A. Inc.
    Inventors: Bi-Zeng Zhan, Stacey Ian Zones, Christopher M. Lew
  • ALKYLATION REACTION USING DELAMINATED ZEOLITE SUPPORTS AS CATALYSTS
    Publication number: 20160122260
    Abstract: Provided is an improved alkylation process using a delaminated SSZ-70 catalyst. The process comprises contacting a hydrocarbon feedstock comprising olefins and isoparaffins with a catalyst comprising delaminated SSZ-70 under alkylating reaction conditions. The delaminated SSZ-70 offers a zeolite layer with a single unit cell of thickness in one dimension, allowing an elimination of mass transfer in comparison with regular SSZ-70. This prevents coke formation inside zeolite channels and improves catalyst stability.
    Type: Application
    Filed: October 21, 2015
    Publication date: May 5, 2016
    Applicant: CHEVRON U.S.A. INC.
    Inventors: Bi-Zeng Zhan, Stacey Ian Zones, Christopher M. Lew
  • OLEFIN OLIGOMERIZATION USING DELAMINATED ZEOLITE SUPPORTS AS CATALYST
    Publication number: 20160122258
    Abstract: Provided is an improved process for olefin oligomerization allowing one to realize superior selectivity. The process comprises contacting a hydrocarbon feed comprised of straight and branched chain olefins under oligomerization conditions with a catalyst comprising delaminated SSZ-70. The delaminated SSZ-70 offers a zeolite layer with a single unit cell of thickness in one dimension, allowing for elimination of mass transfer in comparison with regular SSZ-70. The result is superior selectivity.
    Type: Application
    Filed: October 21, 2015
    Publication date: May 5, 2016
    Applicant: Chevron U.S.A. Inc.
    Inventors: Bi-Zeng Zhan, Stacey Ian Zones, Christopher M. Lew
  • HYDROPROCESSING OF HYDROCARBONS USING DELAMINATED ZEOLITE SUPPORTS AS CATALYSTS
    Publication number: 20160115396
    Abstract: Provided is an improved hydroprocessing process allowing one to realize superior isoselectivity. The process comprises contacting a feed comprised of normal hydrocarbons under hydroprocessing conditions with a catalyst comprising delaminated SSZ-70. The delaminated SSZ-70 has been found to provide unexpected improvements in the catalysis of hydroprocessing hydrocarbons. Delaminated SSZ-70 offers a zeolite layer with a single unit cell of thickness in one dimension, allowing an elimination of mass transfer in comparison with non-delaminated SSZ-70.
    Type: Application
    Filed: October 21, 2015
    Publication date: April 28, 2016
    Applicant: CHEVRON U.S.A. INC.
    Inventors: Bi-Zeng Zhan, Stacey Ian Zones, Christopher M. Lew
  • HYDROPROCESSING OF HYDROCARBONS USING DELAMINATED ZEOLITE SUPPORTS AS CATALYSTS
    Publication number: 20160115397
    Abstract: Provided is an improved hydroprocessing process allowing one to realize superior isoselectivity. The process comprises contacting a feed comprised of normal hydrocarbons under hydroprocessing conditions with a catalyst comprising delaminated SSZ-70.
    Type: Application
    Filed: October 22, 2014
    Publication date: April 28, 2016
    Applicant: CHEVRON U.S.A. INC.
    Inventors: Bi-Zeng Zhan, Stacey Ian Zones, Christopher M. Lew