Patents by Inventor Paul K. Chao

Paul K. Chao 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).

  • Control of temperature exotherms in the conversion of methanol to gasoline hydrocarbons
    Patent number: 4544781
    Abstract: A reactor bed, particularly one designed for converting alcohols to gasoline, is provided with a section downstream of the catalyst bed filled with high heat capacity thermal absorptive material. When the circulation of recycled gas to the system is temporarily suspended automatic valves terminate the injection of alcohol feedstock and begin the injection of inert gases such as methane into the system, thereby avoiding the formation of a hot spot which would subsequently damage the catalyst and equipment downstream.
    Type: Grant
    Filed: January 9, 1985
    Date of Patent: October 1, 1985
    Assignee: Mobil Oil Corporation
    Inventors: Paul K. Chao, Kevin J. Knob, Sergei Yurchak