Patents by Inventor Aaron J. Imrie

Aaron J. Imrie 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).

  • Aromatics isomerization using a dual-catalyst system
    Patent number: 6576581
    Abstract: This invention is drawn to a catalyst system comprising two or more molecular sieves, including at least one non-zeolitic molecular sieve and one zeolitic aluminosilicate, having specified contrasting pore structures and to a process for isomerizing a non-equilibrium mixture of xylenes and ethylbenzene using the subject catalyst system to obtain an improved yield of para-xylene from the mixture relative to prior-art processes.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: June 10, 2003
    Assignee: UOP LLC
    Inventors: Sanjay B. Sharma, Aaron J. Imrie
  • Aromatics isomerization using a dual-catalyst system
    Patent number: 6222086
    Abstract: This invention is drawn to a catalyst system comprising two or more molecular sieves, including at least one non-zeolitlc molecular sieve and one zeolitic aluminosilicate, having specified contrasting pore structures and to a process for isomerizing a non-equilibrium mixture of xylenes and ethylbenzene using the subject catalyst system to obtain an improved yield of para-xylene from the mixture relative to prior-art processes.
    Type: Grant
    Filed: July 2, 1999
    Date of Patent: April 24, 2001
    Assignee: UOP LLC
    Inventors: Sanjay B. Sharma, Aaron J. Imrie