Patents by Inventor Gerald W. G. McDonald

Gerald W. G. McDonald 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).

  • Hydrocarbon conversion process for removing sulfur and nitrogen with passage of catalyst particles in a series of spaced beds
    Patent number: 4051020
    Abstract: A gas phase and a liquid phase pass countercurrently through a reaction vessel, and solid particles move from stage to stage in the reactor concurrently with either the liquid phase or the gas phase. In one embodiment of the invention the liquid phase is a hydrocarbon oil to be treated, for example, desulphurized, the gas phase is hydrogen, and the solid particles are hydrodesulphurization catalyst particles.
    Type: Grant
    Filed: June 14, 1976
    Date of Patent: September 27, 1977
    Assignee: Commonwealth Oil Refining Co. Inc.
    Inventor: Gerald W. G. McDonald
  • Multi-stage reactor
    Patent number: 4026674
    Abstract: A gas phase and a liquid phase pass countercurrently through a reaction vessel, and solid particles move from stage to stage in the reactor concurrently with either the liquid phase or the gas phase. In one embodiment of the invention the liquid phase is a hydrocarbon oil to be treated, for example, desulphurized, the gas phase is hydrogen, and the solid particles are hydrodesulphurization catalyst particles.
    Type: Grant
    Filed: October 30, 1975
    Date of Patent: May 31, 1977
    Assignee: Commonwealth Oil Refining Co., Inc.
    Inventor: Gerald W. G. McDonald