Patents Represented by Attorney Henry A. Naylor

Find this attorney in the Justia Lawyer Directory

  • Process for selectively producing light olefins in a fluid catalytic cracking process from a naphtha/steam feed
    Patent number: 6118035
    Abstract: A process for selectively producing C.sub.2 -C.sub.4 olefins from a catalytically cracked or thermally cracked naphtha stream is disclosed. A mixture of the naphtha stream and a stream of steam is feed into a reaction zone where it is contacted with a catalyst containing from about 10 to 50 wt. % of a crystalline zeolite having an average pore diameter less than about 0.7 nanometers at reaction conditions which include temperatures from about 500 to 650.degree. C. and a hydrocarbon partial pressure from about 10 to 40 psia.
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: September 12, 2000
    Assignee: Exxon Research and Engineering Co.
    Inventors: Shun C. Fung, Tan-Jen Chen, Marcel J. G. Janssen, William A. Wachter, Brian Eric Henry, John Ernest Asplin