Patents Assigned to ExxonMobil Reasearch and Engineering Company
  • METHOD FOR OPTIMIZING CATALYST/OIL MIXING IN AN FCC REACTOR FEED ZONE
    Publication number: 20140305841
    Abstract: A method of improving the uniformity of the contacting of a heavy oil feed with FCC cracking catalyst in the feed zone of an FCC cracking riser in which the heavy oil feed is injected into the catalyst in the riser by means of feed injectors located around the riser, the method comprising minimizing the differences in the temperature profile in the oil/catalyst mixture across the feed zone by varying the oil feed rate to the injectors.
    Type: Application
    Filed: April 11, 2013
    Publication date: October 16, 2014
    Applicant: ExxonMobil Reasearch and Engineering Company
    Inventors: Bing Du, Alvin U. Chen, Christopher G. Smalley, Kentaro Kobayashi, Masaaki Sugita
  • Synthetic diesel fuel and process for its production
    Patent number: 6822131
    Abstract: Clean distillate useful as a diesel fuel or diesel blending stock is produced from Fischer-Tropsch wax by separating wax into heavier and lighter fractions; further separating the lighter fraction and hydroisomerizing the heavier fraction and that portion of the light fraction below about 500° F. The isomerized product is blended with the untreated portion of the lighter fraction.
    Type: Grant
    Filed: November 17, 1997
    Date of Patent: November 23, 2004
    Assignee: ExxonMobil Reasearch and Engineering Company
    Inventors: Paul J. Berlowitz, Robert J. Wittenbrink, Bruce R. Cook