Patents by Inventor Larry E. Hoglen

Larry E. Hoglen 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).

  • Dual catalyst system for hydroisomerization of Fischer-Tropsch wax and waxy raffinate
    Patent number: 7704379
    Abstract: The present invention relates to a process for converting Fischer-Tropsch wax to high quality lube basestocks using a molecular sieve Beta catalyst followed by a unidimensional intermediate pore molecular sieve with near circular pore structures having an average diameter of 0.50 nm to 0.65 nm wherein the difference between the maximum diameter and the minimum is ?0.05 nm. Both catalysts comprise one or more Group VIII metals. For example, a cascaded two-bed catalyst system consisting of a first bed Pt/Beta catalyst followed by a second bed Pt/ZSM-48 catalyst is highly selective for wax isomerization and lube hydrodewaxing with minimal gas formation.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: April 27, 2010
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Zhaozhong Jiang, Terry Eugene Helton, Randall David Partridge, Larry E. Hoglen
  • Dual catalyst system for hydroisomerization of Fischer-Tropsch wax and waxy raffinate
    Publication number: 20040065581
    Abstract: The present invention relates to a process for converting Fischer-Tropsch wax to high quality lube basestocks using a molecular sieve Beta catalyst followed by a unidimensional intermediate pore molecular sieve with near circular pore structures having an average diameter of 0.50 nm to 0.65 nm wherein the difference between the maximum diameter and the minimum is ≦0.05 nm. Both catalysts comprise one or more Group VIII metals. For example, a cascaded two-bed catalyst system consisting of a first bed Pt/Beta catalyst followed by a second bed Pt/ZSM-48 catalyst is highly selective for wax isomerization and lube hydrodewaxing with minimal gas formation.
    Type: Application
    Filed: October 8, 2002
    Publication date: April 8, 2004
    Inventors: Zhaozhong Jiang, Terry Eugene Helton, Randall David Partridge, Larry E. Hoglen
  • Process for co-production of dialkyl carbonate and alkanediol
    Patent number: 6342623
    Abstract: A method is provided for co-producing dialkyl carbonate and alkanediol by reacting alkylene carbonate with alkanol in the presence of an amorphous aluminosilicate catalyst containing alkali metal, alkaline earth metal, or a combination thereof.
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: January 29, 2002
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Clarence D. Chang, Larry E. Hoglen, Zhaozhong Jiang, Rene B. LaPierre
  • Process for co-production of dialkyl carbonate and alkanediol
    Patent number: 6166240
    Abstract: A method is provided for co-producing dialkyl carbonate and alkanediol by reacting alkylene carbonate with alkanol in the presence of a Group 5 or Group 6 metal oxide catalyst.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: December 26, 2000
    Assignee: Mobil Oil Corporation
    Inventors: Clarence D. Chang, Larry E. Hoglen, Zhaozhong Jiang, Rene B. LaPierre
  • Process for co-production of dialkyl carbonate and alkanediol
    Patent number: 6162940
    Abstract: A method is provided for co-producing dialkyl carbonate and alkanediol by reacting alkylene carbonate with alkanol in the presence of a complex salt catalyst having a formula A.sub.x (M.sub.y O.sub.z), wherein A is an alkali metal or alkaline earth metal, M is a Group 5 or Group 6 transition metal, O is oxygen, x is 1 or 2, y is 1 or 2, and z is an integer from 3 to 6.
    Type: Grant
    Filed: December 14, 1999
    Date of Patent: December 19, 2000
    Assignee: Mobil Oil Corporation
    Inventors: Clarence D. Chang, Larry E. Hoglen, Zhaozhong Jiang, Rene B. LaPierre