Patents by Inventor Ronald E. Ritter

Ronald E. Ritter 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).

  • Catalytic cracking catalysts and additives
    Patent number: 5364516
    Abstract: Catalytic cracking catalysts/additives which comprise rare-earth, preferably lanthanum, oxide and/or oxychloride dispersed in an acid reacted metakaolin matrix. The catalysts/additives may be combined with zeolite-containing cracking catalysts to enhance catalytic activity/selectivity in the presence of metals (Ni and V).
    Type: Grant
    Filed: June 21, 1993
    Date of Patent: November 15, 1994
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Ranjit Kumar, Ronald E. Ritter, Howard J. Schaeffer, III
  • Catalytic cracking catalysts and additives
    Patent number: 5248642
    Abstract: Catalytic cracking catalysts/additives which comprise rare-earth, preferably lanthanum, oxide and/or oxychloride dispersed in an acid reacted metakaolin matrix. The catalysts/additives may be combined with zeolite-containing cracking catalysts to enhance catalytic activity/selectivity in the presence of metals (Ni and V).
    Type: Grant
    Filed: August 12, 1992
    Date of Patent: September 28, 1993
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Ranjit Kumar, Ronald E. Ritter, Howard J. Schaeffer, III
  • Cracking catalyst/sulfur oxide gettering agent compositions
    Patent number: 4918036
    Abstract: Sulfur oxide gettering agents which comprise a metal sulfate, such as magnesium sulfate, are described. These getterin agents are used to reduce sulfur oxide emissions from a variety of processes and units, including fluid catalytic cracking (FCC) units.
    Type: Grant
    Filed: July 7, 1988
    Date of Patent: April 17, 1990
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Leo A. Rheaume, Ronald E. Ritter
  • Catalytic cracking of hydrocarbons
    Patent number: 4390416
    Abstract: Nitrogen containing hydrocarbon feedstocks are catalytically cracked in the presence of an acid. The acid is combined with the feedstock immediately prior to contact with a cracking catalyst in the riser section of a fluid catalytic cracking unit.
    Type: Grant
    Filed: December 7, 1981
    Date of Patent: June 28, 1983
    Assignee: W. R. Grace & Co.
    Inventors: Ronald E. Ritter, Donald S. Henderson
  • Addition of olefins to cat cracker feed to modify product selectivity and quality
    Patent number: 4146465
    Abstract: A process for increasing the octane rating of gasoline and decreasing the quantity of coke produced by a catalytic cracking process by adding C.sub.2 to C.sub.6 linear olefins to the feed to the reactor with a zeolite containing cracking catalyst. The olefins may be added separately or mixed with the gas oil feed just before the oil preheat section ahead of the reactor.
    Type: Grant
    Filed: February 10, 1978
    Date of Patent: March 27, 1979
    Assignee: W. R. Grace & Co.
    Inventors: James J. Blazek, Sr., Ronald E. Ritter