Patents Examined by In Suk March
  • Hydrofining process using bulk group VIII/Group VIB catalysts
    Patent number: 7232515
    Abstract: A process for hydrofining a lubricating oil feedstock comprising contacting the feedstock with a hydrofining catalyst in a hydrofining zone under hydrofining conditions wherein the hydrofining catalyst comprises a bulk metal catalyst containing non-noble Group VIII metal molybdate in which at least a portion but less than all of the molybdenum is replaced by tungsten.
    Type: Grant
    Filed: January 14, 2000
    Date of Patent: June 19, 2007
    Assignee: Exxonmobil Research and Engineering Company
    Inventors: Richard Alan Demmin, Kenneth Lloyd Riley, Stuart Leon Soled, Sabato Miseo