Patents by Inventor David Michael Singleton

David Michael Singleton 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).

  • Phosphorous removal and diene removal, when using diene sensitive catalyst, during conversion of olefins to branched primary alcohols
    Patent number: 7102038
    Abstract: A process for making a selectively branched alcohol composition contacting a lower olefin feed comprising linear olefins having at least 3 carbon atoms and a concentration of phosphorous-containing compounds with a sorbent comprising a metal or metal oxide on a support, thereby substantially reducing the concentration of phosphorous-containing compounds and producing a purified lower olefin feed. The purified lower olefin feed is skeletally isomerized and then treated to selectively hydrogenate dienes before hydroformylation to produce selectively branched alcohols.
    Type: Grant
    Filed: August 9, 2002
    Date of Patent: September 5, 2006
    Assignee: Shell Oil Company
    Inventors: Brendan Dermont Murray, Paul Benjerman Himelfarb, Zaida Diaz, David Michael Singleton
  • Removal of phosphorus-containing impurities from an olefin feedstock
    Patent number: 6653514
    Abstract: The invention pertains to a process of removing phosphorous-containing impurities and preferably also dienes, from an olefin stream using a sorbent selected from the group consisting of an acidic ion exchange resin, an acidic zeolite, an acidic alumina, a neutral alumina, and an activated carbon. The olefin stream preferably comprises primarily olefins having at least 6 carbon atoms.
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: November 25, 2003
    Assignee: Shell Oil Company
    Inventors: Brendan Dermot Murray, David Michael Singleton, Zaida Diaz
  • Phosphorous removal and diene removal, when using diene sensitive catalyst, during conversion of olefins to branched primary alcohols
    Publication number: 20030149313
    Abstract: A process for making a selectively branched alcohol composition contacting a lower olefin feed comprising linear olefins having at least 3 carbon atoms and a concentration of phosphorous-containing compounds with a sorbent comprising a metal or metal oxide on a support, thereby substantially reducing the concentration of phosphorous-containing compounds and producing a purified lower olefin feed. The purified lower olefin feed is skeletally isomerized and then treated to selectively hydrogenate dienes before hydroformylation to produce selectively branched alcohols.
    Type: Application
    Filed: August 9, 2002
    Publication date: August 7, 2003
    Inventors: Brendan Dermot Murray, Paul Benjerman Himelfarb, Zaida Diaz, David Michael Singleton
  • Process for preparation of selectively branched detergent products
    Patent number: 6566565
    Abstract: The invention pertains to a process of making selectively branched alcohol compositions by oligomerizing a lower olefin feed. The lower olefin feed preferably comprises linear olefins having at least three carbon atoms.
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: May 20, 2003
    Assignee: Shell Oil Company
    Inventors: Brendan Dermot Murray, David Michael Singleton