Patents by Inventor Duncan Seddon

Duncan Seddon 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).

  • Patent number: 4695670
    Abstract: Process for conversion of a light olefinic feedstock into gasoline by contact with a zeolite catalyst, characterized in that the catalyst contains at least 0.5% of weight by a Group IA metal oxide, has an X-ray powder diffraction pattern (Co radiation) exhibiting the presence of ZSM-5 zeolite and characterized by a peak in the region 2.theta.=27.0.+-.0.2 which is greater in intensity than peaks at both 2.theta.=9.29.+-.0.2 and 2.theta.=10.25.+-.0.2 degrees.
    Type: Grant
    Filed: April 2, 1986
    Date of Patent: September 22, 1987
    Assignees: The Broken Hill Proprietary Co., Ltd., Commonwealth Scientific and Industrial Research Organisation
    Inventor: Duncan Seddon
  • Patent number: 4675460
    Abstract: Gasoline capable of further processing into diesel fuel is produced by catalytic conversion of lower olefins, using a zeolite catalyst which has been modified by substituting a significant portion of the cation sites thereof by basic cations. A preferred catalyst comprises a zeolite and a binder, said catalyst containing at least 0.2% by weight of exchangeable basic cations. The gasoline so produced is readily converted by contact with a Friedel Crafts catalyst into a hydrocarbon product having a significant fraction boiling in the distillate range.
    Type: Grant
    Filed: January 13, 1986
    Date of Patent: June 23, 1987
    Assignees: The Broken Hill Propietary Company Limited, Commonwealth Scientific & Industrial Research Organization
    Inventors: Duncan Seddon, Sandra Bessell
  • Patent number: 4499314
    Abstract: A process for producing hydrocarbons comprising contacting, under conversion conditions, an aqueous methanol with a crystalline aluminosilicate zeolite catalyst which is hydrothermally stable in the temperature range of from 250.degree. C. to 500.degree. C. and is capable of converting methanol to hydrocarbons, and with a promoter comprising one or more compounds selected from the group consisting of aromatic hydrocarbons, precursors to aromatic hydrocarbons, olefins, precursors to olefins and aldehydes to form a mixture comprising light olefins, lower alkanes and monocyclic aromatic hydrocarbons and recovering said hydrocarbons.
    Type: Grant
    Filed: April 30, 1984
    Date of Patent: February 12, 1985
    Assignee: Imperial Chemical Industries PLC
    Inventors: Duncan Seddon, Thomas Mole, Judy A. Whiteside