Patents by Inventor Reenen Andre De Villiers

Reenen Andre De Villiers 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).

  • Moving bed solid catalyst hydrocarbon alkylation process
    Patent number: 5849976
    Abstract: Hydrocarbons are alkylated using slowly moving cylindrical beds of solid catalyst in a process featuring a cooling zone within the reaction zone and a moving bed catalyst regeneration zone. The catalyst passes downward through both zones, which may be stacked upon one another. The reaction zone is operated at liquid-phase conditions, and the catalyst is periodically subjected to a regeneration procedure employing a hydrogen-containing stream. Direct heat exchange within the reaction zone removes the heat of the reaction.
    Type: Grant
    Filed: April 29, 1996
    Date of Patent: December 15, 1998
    Assignee: UOP LLC
    Inventors: Christopher David Gosling, Daniel L. Weiler, Reenen Andre De Villiers