Patents Examined by Glenn A. Caldalola
  • Short contact time catalytic cracking process
    Patent number: 5824208
    Abstract: Disclosed is a catalytic cracking process which incorporates a short contact time catalytic cracking step. The short contact time cracking step provides for an overall increase in distillate quality as well as provides for an overall increase in the quantity of light olefins product. After the short contact time reaction step, gasoline and high quality distillate products are separated from a gas oil containing bottoms fraction, and the gas oil containing bottoms fraction is reprocessed.
    Type: Grant
    Filed: July 28, 1995
    Date of Patent: October 20, 1998
    Assignee: Exxon Research & Engineering Company
    Inventors: Martin G. Bienstock, Paul K. Ladwig
  • Olefin isomerisation process
    Patent number: 5659104
    Abstract: The invention concerns an isomerisation process for n-olefins containing at most 20 carbon atoms, consisting of bringing a feed containing the olefins into contact with an alumina based catalyst impregnated with 0.03% to 0.6% by weight of titanium and 0.05% to 5% by weight of an oxide of an element from group IIIA. The process can then be carried out in the presence of a small quantity of steam or it can be carried out in the absence of steam.
    Type: Grant
    Filed: January 22, 1996
    Date of Patent: August 19, 1997
    Assignee: Institut Francais Du Petrole
    Inventors: Christine Travers, Jean-Pierre Burzynski, Albert Chaillard