Patents Examined by Tanaga Anne Booger
  • Hydrodealkylation process
    Patent number: 5689026
    Abstract: A process for hydrodealkylating C.sub.9 -C.sub.12 alkyl-substituted benzenes (preferably trimethylbenzenes) to C.sub.6 -C.sub.8 aromatic hydrocarbons (in particular, toluene and xylenes) and C.sub.1 -C.sub.5 alkanes employs a catalyst containing zeolite Beta, nickel, molybdenum and sulfur (preferably as sulfides of nickel and of molybdenum).
    Type: Grant
    Filed: April 24, 1996
    Date of Patent: November 18, 1997
    Assignee: Phillips Petroleum Company
    Inventors: An-hsiang Wu, Charles A. Drake, Ralph J. Melton