Patents Represented by Attorney R. D. Touslee

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  • Process for purifying waste water streams by inclusion complexation of polynuclear aromatic hydrocarbons
    Patent number: 5190663
    Abstract: A process to reduce the concentration of dissolved polynuclear aromatic hydrocarbons in an aqueous composition, particularly a refinery waste water stream, by contacting the aqueous composition with a water insoluble inclusion agent comprising an anchored cyclodextrin, said cyclodextrin having an inclusion cavity diameter of at least about 10 angstroms, under conditions which facilitate the selective formation of an inclusion complex between a cyclodextrin and a polynuclear aromatic hydrocarbon.
    Type: Grant
    Filed: April 16, 1992
    Date of Patent: March 2, 1993
    Assignee: Chevron Research and Technology Company
    Inventor: John C. Fetzer
  • Low temperature regeneration of coke deactivated reforming catalysts
    Patent number: 5155075
    Abstract: A process for regenerating a coke contaminated reforming catalyst comprising platinum on a molecular sieve, said process consisting essentially of contacting said catalyst with a halogen-free oxygen-containing gas at a temperature of less than 780.degree. F. for a sufficient period of time such that the aromatization activity is restored to within 20.degree. F. of the activity said catalyst possessed at the start of the previous run cycle.
    Type: Grant
    Filed: March 1, 1991
    Date of Patent: October 13, 1992
    Assignee: Chevron Research and Technology Company
    Inventors: Robert A. Innes, Dennis L. Holtermann, Bernard F. Mulaskey
  • Staged catalyst reforming to produce optimum octane barrel per calendar day reformate production
    Patent number: 5073250
    Abstract: A naphtha feed is contacted in a penultimate reforming stage under catalytic reforming conditions with a first catalyst. The effluent from the penultimate reforming stage is contacted in a final reforming stage under catalytic reforming conditions and at substantially the same pressure as is maintained in the penultimate reforming stage with a second catalyst. The reforming pressure is selected to provide optimal OB/CD production of product reformate of a desired RON from the final stage.
    Type: Grant
    Filed: March 2, 1990
    Date of Patent: December 17, 1991
    Assignee: Chevron Research & Technology Company
    Inventors: Jules M. Kline, Stephen J. Miller, Bernard F. Mulaskey