Patents by Inventor Willem J. A. H. Schoeber

Willem J. A. H. Schoeber 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).

  • Process for removing fly ash particles from a gas at elevated pressure
    Patent number: 4516989
    Abstract: In a process for separating fly-ash from crude synthesis gas a high-pressure cyclone is used, having a central pipe ranging from above its gas outlet to below its solids outlet. Through this pipe gas is removed which emanates from a sluice system to which the cyclone is connected by means of its solids outlet. In this way the efficiency of the cyclone is improved.
    Type: Grant
    Filed: May 31, 1984
    Date of Patent: May 14, 1985
    Assignee: Shell Oil Company
    Inventors: Bernardus H. Mink, Willem J. A. H. Schoeber
  • Process for the preparation of hydrocarbons from carbon-containing material
    Patent number: 4433065
    Abstract: Pulverized coal is converted by means of a gaseous mixture and partial oxidation into synthesis gas which is subsequently utilized as a feedstock for the production of hydrocarbons. A gaseous mixture containing non-converted synthesis gas and low boiling hydrocarbons is separated from the higher boiling hydrocarbons and recycled to the coal conversion step.
    Type: Grant
    Filed: March 5, 1982
    Date of Patent: February 21, 1984
    Assignee: Shell Oil Company
    Inventors: Maarten J. van der Burgt, Sikke J. A. Boelema, Willem J. A. H. Schoeber, Pieter L. Zuideveld