Patents by Inventor Francisco N. Nazario

Francisco N. Nazario 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 the liquefaction of solid carbonaceous materials wherein nitrogen is separated from hydrogen via ammonia synthesis
    Patent number: 4341618
    Abstract: In a process for the liquefaction of solid carbonaceous materials wherein bottoms residues are upgraded with a process wherein air is employed, the improvement wherein nitrogen buildup in the system is avoided by ammonia synthesis. In a preferred embodiment hydrogen from other portions of the liquefaction process will be combined with hydrogen produced as a result of the bottoms upgrading to increase the H.sub.2 :N.sub.2 ratio in the ammonia reactor.
    Type: Grant
    Filed: May 29, 1980
    Date of Patent: July 27, 1982
    Assignee: Exxon Research & Engineering Co.
    Inventors: Steven S. Stetka, Francisco N. Nazario