Patents Represented by Attorney Paul Purwin

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  • Hydroprocessing using hydrothermally-prepared bulk multimetallic catalysts
    Patent number: 7686943
    Abstract: The invention relates to a process for upgrading hydrocarbonaceous feedstreams by hydroprocessing using bulk bimetallic catalysts. More particularly, the invention relates to a catalytic hydrotreating process for the removal of sulfur and nitrogen from a hydrocarbon feed such as a fuel or a lubricating oil feed. The catalyst is a bulk catalyst containing at leas one Group VIII metal and at least one Group VIB metal. The catalyst is prepared hydrothermally.
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: March 30, 2010
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Stuart L. Soled, Sabato Miseo, Sonja Eijsbouts, Frans L. Plantenga