Patents by Inventor Charles Morris Yarbrough

Charles Morris Yarbrough 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).

  • Olefin hydration process
    Patent number: 9266801
    Abstract: The invention is directed to improvements in the indirect hydration process for the production of alcohols that enable high alcohol yield by increasing ether recycle in an olefin hydration process, such as the hydration process to produce isopropyl alcohol (IPA) from propylene or the hydration process to produce sec-butyl alcohol (SBA) from butylene.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: February 23, 2016
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Charles Morris Yarbrough, Seth McConkie Washburn, Dennis Jay Davoren, Michael Alan Better
  • Lowering nitrogen-containing Lewis bases in molecular sieve oligomerisation
    Patent number: 9169169
    Abstract: A process for the oligomerization of olefins includes treating, e.g., water washing, an olefin-containing hydrocarbon stream to lower the concentration of an organic nitrogen-containing Lewis base contained therein until the treated hydrocarbon stream is substantially free of the Lewis base; and subsequently contacting the treated hydrocarbon stream with a molecular sieve catalyst to produce a product including at least one oligomer.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: October 27, 2015
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: John Stephen Godsmark, George Marie Karel Mathys, Hubertus Joseph Beckers, Charles Morris Yarbrough, Stephen Harold Brown, Yeo-Meng Lim
  • Olefin Hydration Process
    Publication number: 20120172635
    Abstract: The invention is directed to improvements in the indirect hydration process for the production of alcohols that enable high alcohol yield by increasing ether recycle in an olefin hydration process, such as the hydration process to produce isopropyl alcohol (IPA) from propylene or the hydration process to produce sec-butyl alcohol (SBA) from butylene.
    Type: Application
    Filed: June 17, 2010
    Publication date: July 5, 2012
    Inventors: Charles Morris Yarbrough, Seth McConkie Washburn, Dennis Jay Davoren, Michael Alan Better
  • Lowering Nitrogen-Containing Lewis Bases In Molecular Sieve Oligomerisation
    Publication number: 20110282092
    Abstract: Nitrogen-containing Lewis bases act as poisons for molecular sieve catalysts used in oligomerisation reactions. Lowering their presence in the feed prior to the contacting thereof with the molecular sieve brings a significant extension of catalyst life. Thus, processes that are directed to the lowering of these poisons are provided.
    Type: Application
    Filed: June 24, 2011
    Publication date: November 17, 2011
    Inventors: John Stephen Godsmark, George Marie Karel Mathys, Hubertus Joseph Beckers, Charles Morris Yarbrough, Stephen Harold Brown, Yeo-Meng Lim
  • Lowering nitrogen-containing Lewis bases in molecular sieve oligomerisation
    Patent number: 7989668
    Abstract: Nitrogen-containing Lewis bases act as poisons for molecular sieve catalysts used in oligomerisation reactions. A lowering of their presence in the feed prior to the contacting thereof with the molecular sieve brings a significant extension of catalyst life. Excessive elimination of these poisons may be disadvantageous. Lowering the levels of these catalyst poisons to more manageable concentrations is therefore preferred.
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: August 2, 2011
    Assignee: Exxonmobil Chemical Patents Inc.
    Inventors: John Stephen Godsmark, Georges Marie Karel Mathys, Hubertus Joseph Beckers, Charles Morris Yarbrough, Stephen Harold Brown, Yeo-Meng Lim
  • Lowering nitrogen-containing Lewis bases in molecular sieve oligomerisation
    Publication number: 20070213575
    Abstract: Nitrogen-containing Lewis bases act as poisons for molecular sieve catalysts used in oligomerisation reactions. A lowering of their presence in the feed prior to the contacting thereof with the molecular sieve brings a significant extension of catalyst life. Excessive elimination of these poisons may be disadvantageous. Lowering the levels of these catalyst poisons to more manageable concentrations is therefore preferred.
    Type: Application
    Filed: February 1, 2007
    Publication date: September 13, 2007
    Inventors: John Stephen Godsmark, Georges Marie Karel Mathys, Hubertus Joseph Beckers, Charles Morris Yarbrough, Stephen Harold Brown, Yeo-Meng Lim
  • Selective decomposition of ethers
    Patent number: 7102037
    Abstract: A process for selectively converting a dialkyl ether to the corresponding alkene and alkanol comprises contacting a feed containing at least one dialkyl ether with a catalyst comprising a mixed metal oxide which comprises at least one metal selected from Group 4 of the Periodic Table of Elements and at least one metal selected from Group 3 (including the Lanthanides and Actinides) and Group 6 of the Periodic Table of Elements.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: September 5, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Doron Levin, Shifang Luo, James Clarke Vartuli, Charles Morris Yarbrough, Dane Clark Grenoble