Patents by Inventor Ajaykumar Chandravadan Gami

Ajaykumar Chandravadan Gami 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).

  • USE OF HYDROCARBON DILUENTS TO ENHANCE CONVERSION IN A DEHYDROGENATION PROCESS AT LOW STEAM/OIL RATIOS
    Publication number: 20140114107
    Abstract: A process for preparing styrene via the catalytic dehydrogenation of ethylbenzene, comprising recirculation of reaction byproducts to the initial reaction stream as an oil based diluent, providing an effective means for reducing the steam to oil ratio required to operate the catalytic dehydrogenation reactor.
    Type: Application
    Filed: October 14, 2013
    Publication date: April 24, 2014
    Applicant: LUMMUS TECHNOLOGY INC.
    Inventor: Ajaykumar Chandravadan Gami
  • Production of styrene from ethylbenzene using azeotropic vaporization and low overall water to ethylbenzene ratios
    Patent number: 8350109
    Abstract: A process for dehydrogenation of alkylaromatic hydrocarbon, including: contacting a reactant vapor stream, comprising an alkylaromatic hydrocarbon and steam and having a first steam to alkylaromatic hydrocarbon ratio, with a dehydrogenation catalyst to form a vapor phase effluent comprising a product hydrocarbon, the steam, and unreacted alkylaromatic hydrocarbon; feeding at least a portion of the effluent to a splitter to separate the product hydrocarbon from the unreacted alkylaromatic hydrocarbon; recovered from the splitter as bottoms and overheads fractions, respectively; recovering heat from a first portion of said overheads fraction by indirect heat exchange with a mixture comprising alkylaromatic hydrocarbon and water to at least partially condense said portion and to form an azeotropic vaporization product comprising alkylaromatic vapor and steam having a second steam to alkylaromatic hydrocarbon ratio; and combining the azeotropic vaporization product with additional alkylaromatic hydrocarbon and ad
    Type: Grant
    Filed: December 13, 2010
    Date of Patent: January 8, 2013
    Assignee: Lummus Technology Inc.
    Inventors: Ajaykumar Chandravadan Gami, Sanjeev Ram
  • PRODUCTION OF STYRENE FROM ETHYLBENZENE USING AZEOTROPIC VAPORIZATION AND LOW OVERALL WATER TO ETHYLBENZENE RATIOS
    Publication number: 20120149960
    Abstract: A process for dehydrogenation of alkylaromatic hydrocarbon, including: contacting a reactant vapor stream, comprising an alkylaromatic hydrocarbon and steam and having a first steam to alkylaromatic hydrocarbon ratio, with a dehydrogenation catalyst to form a vapor phase effluent comprising a product hydrocarbon, the steam, and unreacted alkylaromatic hydrocarbon; feeding at least a portion of the effluent to a splitter to separate the product hydrocarbon from the unreacted alkylaromatic hydrocarbon; recovered from the splitter as bottoms and overheads fractions, respectively; recovering heat from a first portion of said overheads fraction by indirect heat exchange with a mixture comprising alkylaromatic hydrocarbon and water to at least partially condense said portion and to form an azeotropic vaporization product comprising alkylaromatic vapor and steam having a second steam to alkylaromatic hydrocarbon ratio; and combining the azeotropic vaporization product with additional alkylaromatic hydrocarbon and ad
    Type: Application
    Filed: December 13, 2010
    Publication date: June 14, 2012
    Applicant: LUMMUS TECHNOLOGY INC.
    Inventors: Ajaykumar Chandravadan Gami, Sanjeev Ram