Patents by Inventor Tommy W. Doggett

Tommy W. Doggett 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).

  • Methanol carbonylation system with multiple absorber feed options
    Patent number: 10010841
    Abstract: A methanol carbonylation system 10 includes an absorber tower 75 adapted for receiving a vent gas stream and removing methyl iodide therefrom with a scrubber solvent, the absorber tower being coupled to first and second scrubber solvent sources 16, 56 which are capable of supplying different first and second scrubber solvents. A switching system including valves 90, 92, 94, 96, 98 alternatively provides first or second scrubber solvents to the absorber tower and returns the used solvent and sorbed material to the carbonylation system to accommodate different operating modes.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: July 3, 2018
    Assignee: Celanese International Corporation
    Inventors: Raymond J. Zinobile, Tommy W. Doggett, Lun-kuang Liu
  • Methanol carbonylation system with multiple absorber feed options
    Patent number: 9446363
    Abstract: A methanol carbonylation system 10 includes an absorber tower 75 adapted for receiving a vent gas stream and removing methyl iodide therefrom with a scrubber solvent, the absorber tower being coupled to first and second scrubber solvent sources 16, 56 which are capable of supplying different first and second scrubber solvents. A switching system including valves 90, 92, 94, 96, 98 alternatively provides first or second scrubber solvents to the absorber tower and returns the used solvent and sorbed material to the carbonylation system to accommodate different operating modes.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: September 20, 2016
    Assignee: Celanese International Corporation
    Inventors: Raymond J. Zinoble, Tommy W. Doggett, Lun-kuang Liu
  • Methanol Carbonylation System with Multiple Absorber Feed Options
    Publication number: 20160059177
    Abstract: A methanol carbonylation system 10 includes an absorber tower 75 adapted for receiving a vent gas stream and removing methyl iodide therefrom with a scrubber solvent, the absorber tower being coupled to first and second scrubber solvent sources 16, 56 which are capable of supplying different first and second scrubber solvents. A switching system including valves 90, 92, 94, 96, 98 alternatively provides first or second scrubber solvents to the absorber tower and returns the used solvent and sorbed material to the carbonylation system to accommodate different operating modes.
    Type: Application
    Filed: November 6, 2015
    Publication date: March 3, 2016
    Inventors: Raymond J. Zinoble, Tommy W. Doggett, Lun-kuang Liu
  • Methanol carbonylation system having absorber with multiple solvent options
    Patent number: 8318977
    Abstract: A methanol carbonylation system 10 includes an absorber tower 75 adapted for receiving a vent gas stream and removing methyl iodide therefrom with a scrubber solvent, the absorber tower being coupled to first and second scrubber solvent sources 16, 56 which are capable of supplying different first and second scrubber solvents. A switching system including valves 90, 92, 94, 96, 98 alternatively provides first or second scrubber solvents to the absorber tower and returns the used solvent and sorbed material to the carbonylation system to accommodate different operating modes.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: November 27, 2012
    Assignee: Celanese International Corporation
    Inventors: Raymond J. Zinobile, Tommy W. Doggett, Lun-kuang Liu
  • Methanol carbonylation system having absorber with multiple solvent options
    Publication number: 20090270651
    Abstract: A methanol carbonylation system 10 includes an absorber tower 75 adapted for receiving a vent gas stream and removing methyl iodide therefrom with a scrubber solvent, the absorber tower being coupled to first and second scrubber solvent sources 16, 56 which are capable of supplying different first and second scrubber solvents. A switching system including valves 90, 92, 94, 96, 98 alternatively provides first or second scrubber solvents to the absorber tower and returns the used solvent and sorbed material to the carbonylation system to accommodate different operating modes.
    Type: Application
    Filed: April 23, 2009
    Publication date: October 29, 2009
    Inventors: Raymond J. Zinobile, Tommy W. Doggett, Lun-kuang Liu