Patents by Inventor Vutukuru Lakshmi Narasimh Murthy

Vutukuru Lakshmi Narasimh Murthy 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).

  • Fluidized catalytic cracking apparatus
    Patent number: 6027696
    Abstract: A fluidized catalytic cracking apparatus for catalytically cracking a heavy hydrocarbon feed to lighter products includes a regenerator shell for heating spent catalyst, the regenerator shell having a bottom riser for introduction of the heavy hydrocarbon feed, a catalyst, and steam, and from which flows a stream, the bottom riser having a distributor for allowing the stream from the bottom riser to be distributed into a plurality of reaction tubes positioned within the regenerator shell; a catalyst separator connected to an upper end of the regenerator shell; a stripper connected to the catalyst separator to cause a stripping of the catalyst and the spent catalyst feed to the regenerator shell; and an air inlet provided in the regenerator shell so as to cause a combustion within the regenerator shell.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: February 22, 2000
    Assignee: Indian Oil Corporation Ltd.
    Inventors: Asit Kumar Das, Debasis Bhattacharyya, Sukumar Mandal, Vutukuru Lakshmi Narasimh Murthy, Sanjeev Singh, Marri Rama Rao, Sobhan Ghosh