Patents by Inventor Atulya V. Saraf

Atulya V. Saraf 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 catalytically cracking paraffin rich feedstocks comprising high and low concarbon components
    Patent number: 5730859
    Abstract: A process for contemporaneously catalytically cracking a paraffin rich feedstock and a heavy feedstock wherein the feedstocks are segregated prior to catalytic cracking in separate reactors with regenerated particulate catalyst solids. The process provides for the separate optimal cracking of paraffinic constituents and heavy naphthenic constituents while maintaining an overall heat balance.
    Type: Grant
    Filed: July 16, 1996
    Date of Patent: March 24, 1998
    Assignee: Stone & Webster Engineering Corporation
    Inventors: Axel R. Johnson, Joseph L. Ross, Atulya V. Saraf
  • Catalytically cracking paraffin rich feedstocks comprising high and low concarbon components
    Patent number: 5565176
    Abstract: An apparatus for contemporaneously catalytically cracking a paraffin rich feedstock and a heavy feedstock wherein the feedstocks are segregated prior to catalytic cracking in separate reactors with regenerated particulate catalyst solids. The apparatus provides for the separate optimal cracking of paraffinic constituents and heavy naphthenic constituents while maintaining an overall heat balance.
    Type: Grant
    Filed: March 23, 1995
    Date of Patent: October 15, 1996
    Assignee: Stone & Webster Engineering Corporation
    Inventors: Axel R. Johnson, Joseph L. Ross, Atulya V. Saraf
  • Process for catalytically cracking feedstocks paraffin rich comprising high and low concarbon components
    Patent number: 5435906
    Abstract: A process for contemporaneously catalytically cracking a paraffin rich feedstock and a heavy feedstock wherein the feedstocks are segregated prior to catalytic cracking in separate reactors with regenerated particulate catalyst solids. The process provides for the separate optimal cracking of paraffinic constituents and heavy naphthenic constituents while maintaining an overall heat balance.
    Type: Grant
    Filed: August 9, 1993
    Date of Patent: July 25, 1995
    Assignee: Stone & Webster Engineering Corporation
    Inventors: Axel R. Johnson, Joseph L. Ross, Atulya V. Saraf