Patents by Inventor Stuart H. SHIH

Stuart H. SHIH 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).

  • Hydroprocessing with drum blanketing gas compositional control
    Patent number: 9850435
    Abstract: A catalytic naphtha hydrodesulfurization process is operated in a process unit having a surge drum with equipped for gas blanketing with a blanketing gas containing controlled levels of CO and CO2. If the gas selected for blanketing normally contains more than the acceptable level of these inhibitors, they should be reduced to the levels appropriate for retention of catalyst functionality.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: December 26, 2017
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Stuart H. Shih, William J. Novak
  • HYDROPROCESSING WITH DRUM BLANKETING GAS COMPOSITIONAL CONTROL
    Publication number: 20160060547
    Abstract: A catalytic naphtha hydrodesulfurization process is operated in a process unit having a surge drum with equipped for gas blanketing with a blanketing gas containing controlled levels of CO and CO2. If the gas selected for blanketing normally contains more than the acceptable level of these inhibitors, they should be reduced to the levels appropriate for retention of catalyst functionality.
    Type: Application
    Filed: July 27, 2015
    Publication date: March 3, 2016
    Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Stuart H. SHIH, William J. NOVAK