Patents by Inventor Thu-Huong Nguyen

Thu-Huong Nguyen 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).

  • Hydrogenation of middle distillate using a counter-current reactor
    Patent number: 7247235
    Abstract: A process for the hydrogenation of a hydrocarbon feed includes contacting a major amount of the hydrocarbon feed with hydrogen in a counter-current manner in a first reaction zone under hydrogenation reaction conditions in the presence of a hydrogenation catalyst in at least a first catalyst bed wherein a liquid effluent exits at a bottom end of the first reaction zone and a hydrogen-containing gaseous effluent exits at a top end of the first reaction zone, and contacting a minor portion of the hydrocarbon feed with said hydrogen-containing gaseous effluent in a co-current manner in a second reaction zone having a catalyst bed positioned to receive the hydrogen-containing effluent of the first reaction zone.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: July 24, 2007
    Assignee: ABB Lummus Global Inc,
    Inventors: Harjeet Virdi, Arup Roy, Thu-Huong Nguyen
  • Hydrogenation of middle distillate using a counter-current reactor
    Publication number: 20040238409
    Abstract: A process for the hydrogenation of a hydrocarbon feed includes contacting a major amount of the hydrocarbon feed with hydrogen in a counter-current manner in a first reaction zone under hydrogenation reaction conditions in the presence of a hydrogenation catalyst in at least a first catalyst bed wherein a liquid effluent exits at a bottom end of the first reaction zone and a hydrogen-containing gaseous effluent exits at a top end of the first reaction zone, and contacting a minor portion of the hydrocarbon feed with said hydrogen-containing gaseous effluent in a co-current manner in a second reaction zone having a catalyst bed positioned to receive the hydrogen-containing effluent of the first reaction zone.
    Type: Application
    Filed: May 30, 2003
    Publication date: December 2, 2004
    Inventors: Harjeet Virdi, Arup Roy, Thu-Huong Nguyen