Patents Examined by Pal Asok
  • Co oxidation promoter and use thereof for catalytic cracking
    Patent number: 5565399
    Abstract: CO promoter particles for an FCC unit comprising transition alumina and containing at least 3% cerium oxide and from 2 to 8% lanthanum oxide.
    Type: Grant
    Filed: June 29, 1994
    Date of Patent: October 15, 1996
    Inventors: Dan Fraenkel, Inez L. Moselle
  • Regeneration of HF-based alkylation catalyst
    Patent number: 5386076
    Abstract: The present invention provides a method for separating conjunct polymers which are formed as byproducts of acid catalyzed isoparaffin-olefin alkylation and sulfolane from a mixture containing conjunct polymers, sulfolane, and hydrofluoric acid, which method provides a sulfolane recycle stream which requires no further drying before charging the stream to the alkylation reaction zone.
    Type: Grant
    Filed: August 23, 1993
    Date of Patent: January 31, 1995
    Assignee: Mobil Oil Corporation
    Inventors: Jonathan E. Child, Tomas R. Melli