Patents by Inventor Mainak Ghosh

Mainak Ghosh 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).

  • Patent number: 6289988
    Abstract: The present invention provides a process for the management of H2S containing gas streams and high alkalinity water streams in which process the H2S is selectively removed from the gas stream and combusted to form an SO2 rich waste gas stream. The SO2 gas stream is then scrubbed with the water stream to substantially remove the SO2 from the gas while subsequent treatment of the water such as softening or settling is improved.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: September 18, 2001
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Ronald Damian Myers, John Brenton MacLeod, Norman A. Chambers, Mainak Ghosh
  • Patent number: 6277269
    Abstract: A bitumen is rendered pipelineable by partially hydroconverting the bitumen and then adding sufficient diluent to the partially hydroconverted bitumen to provide a mixture having an API gravity at 15° C. of at least 19° and a viscosity at 40° C. in the range of about 35 to about 60 cP.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: August 21, 2001
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Ronald Damian Myers, John Brenton MacLeod, Mainak Ghosh, Tapan Chakrabarty
  • Patent number: 6096192
    Abstract: A bitumen is rendered pipelineable by partially hydroconverting the bitumen and then adding sufficient diluent to the partially hydroconverted bitumen to provide a mixture having an API gravity at 15.degree. C. of at least 19.degree. and a viscosity at 40.degree. C. in the range of about 35 to about 60 cP.
    Type: Grant
    Filed: July 14, 1998
    Date of Patent: August 1, 2000
    Assignee: Exxon Research and Engineering Co.
    Inventors: Ronald Damian Myers, John Brenton MacLeod, Mainak Ghosh, Tapan Chakrabarty
  • Patent number: 5807478
    Abstract: A method for lowering the viscosity and specific gravity of a heavy hydrocarbon to render it pipelineable is disclosed. The method comprises adding a vanadium and nickel containing coke fly ash to the heavy hydrocarbon; reacting the heavy hydrocarbon in the presence of the fly ash with a molecular hydrogen containing gas under hydroconversion conditions for a time sufficient to lower the viscosity of the hydrocarbon in the range of about 20 to 60 centipoise at 40.degree. C. and to lower the specific gravity in the range of from about 0.925 to about 0.940 at 15.degree. C., whereby the heavy hydrocarbon is rendered pipelineable.
    Type: Grant
    Filed: May 16, 1997
    Date of Patent: September 15, 1998
    Assignee: Exxon Research and Engineering Company
    Inventors: Ronald Damian Myers, Mainak Ghosh, John Brenton MacLeod