Patents by Inventor Walter R. Derr

Walter R. Derr has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Hydrocracking process for aromatics production
    Patent number: 4435275
    Abstract: A hydrocracking process with improved distillate selectivity is operated at limited conversion without liquid/gas separation between the denitrogenation and hydrocracking catalyst beds or liquid recycle. Conversion is held to a maximum of 50 volume percent to lower boiling products. Relatively mild conditions, especially of pressure, may be employed.
    Type: Grant
    Filed: May 5, 1982
    Date of Patent: March 6, 1984
    Assignee: Mobil Oil Corporation
    Inventors: Walter R. Derr, Michael S. Sarli
  • Method and arrangement of apparatus for hydrogenating hydrocarbons
    Patent number: 4126539
    Abstract: A CHD reactor is modified to include a feed nozzle arrangement which hydrogen-saturates the charged liquid before distribution across the fixed catalyst bed by a pair of gas/liquid distributor trays. Product is recovered from the catalyst bed through an apparatus arrangement comprising Glitsch grid to maintain low pressure drop in the system.
    Type: Grant
    Filed: December 5, 1977
    Date of Patent: November 21, 1978
    Assignee: Mobil Oil Corporation
    Inventors: Walter R. Derr, Jr., Lawrence E. Gallagher, James H. Haddad, Stephen J. McGovern, Klaus W. Schatz, Fritz A. Smith
  • Method for upgrading synthetic oils boiling above gasoline boiling material
    Patent number: 4080397
    Abstract: Upgrading of 350.degree. F plus product of Fischer-Tropsch Synthesis is accomplished by hydrotreating the Fischer-Tropsch Synthesis product and selective cracking the hydrotreated material boiling above about 600.degree. F. A product slate is recovered comprising LPG, gasoline, jet fuel, light and heavy oil fractions.
    Type: Grant
    Filed: July 9, 1976
    Date of Patent: March 21, 1978
    Assignee: Mobile Oil Corporation
    Inventors: Walter R. Derr, Joseph R. McClernon, Stephen J. McGovern, Fritz A. Smith
  • Method for upgrading synthetic oils boiling above gasoline boiling material
    Patent number: 4059648
    Abstract: Upgrading a product of Fischer-Tropsch Synthesis boiling above 300.degree. F is accomplished in a combination operation comprising hydrotreating of the 300.degree. F plus product and selective cracking portions of the hydrotreated product to provide a product slate comprising gas, gasoline, jet fuel, light and heavy oil fractions.
    Type: Grant
    Filed: July 9, 1976
    Date of Patent: November 22, 1977
    Assignee: Mobil Oil Corporation
    Inventors: Walter R. Derr, Joseph R. McClernon, Stephen J. McGovern, Fritz A. Smith