Patents Assigned to Recat, Inc.
  • Process for treating a material wherein the material is suspended in a gaseous atmosphere
    Patent number: 5108968
    Abstract: A process for treating catalytic particles in a vertical chamber is disclosed. The catalytic particles comprise spent catalysts from such hydroprocesses as hydrocracking and hydroreforming. The process comprises suspending the catalytic particles in a gaseous atmosphere of a vertical chamber for a time sufficient to remove the waste products from the catalytic particles. The process can be used to remove carbonaceous and sulfur deposits from the surface of the particles as well as volatile hydrocarbons and hydrates.
    Type: Grant
    Filed: April 6, 1990
    Date of Patent: April 28, 1992
    Assignee: Recat, Inc.
    Inventors: Robert E. Ellingham, James W. Barnes