Patents Examined by E. D. Trzinski
  • Novel platinum-iridium reforming catalysts
    Patent number: 4966879
    Abstract: A reforming catalyst comprised of platinum, iridium, and optionally rhenium, on a modified alumina support which modifier is comprised of about 100 to 500 wppm Si and at least about 10 wppm of one or more alkaline earth metals selected from Ca, Mg, Ba, and Sr wherein the total amount of modifier does not exceed about 5,000 wppm.
    Type: Grant
    Filed: July 3, 1989
    Date of Patent: October 30, 1990
    Assignee: Exxon Research & Engineering Company
    Inventor: William C. Baird, Jr.