Patents by Inventor Shailendra Arora

Shailendra Arora 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 recovery of propylene and LPG from FCC fuel gas using stripped main column overhead distillate as absorber oil
    Patent number: 8618344
    Abstract: A process is disclosed for enhanced recovery of propylene and LPG from the fuel gas produced in Fluid catalytic cracking unit by contacting a heavier hydrocarbon feed with FCC catalyst. In the conventional process, the product mixture from FCC main column overhead comprising naphtha, LPG and fuel gas, are first condensed and gravity separated to produce unstabilized naphtha, which is subsequently used in the absorber to absorb propylene and LPG from fuel gas. However, the recovery of propylene beyond 97 wt % is difficult in this process since unstabilized naphtha already contains propylene of 5 mol % or above. In the present invention, C4 and lighter components from unstabilized naphtha are first stripped off in a separate column to obtain a liquid fraction almost free from propylene (<0.1 mol %) and other LPG components. Such a stripped liquid fraction, after cooling to 20° C. to 30° C.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: December 31, 2013
    Assignee: Reliance Industries Limited
    Inventors: Manoj Yadav, Sukumar Mandal, Asit Kumar Das, Yogesh Gupta, Minaz Makhania, Gobind Tulsi, Shailendra Arora, Shubhangi Jaguste
  • PROCESS FOR RECOVERY OF PROPYLENE AND LPG FROM FCC FUEL GAS USING STRIPPED MAIN COLUMN OVERHEAD DISTILLATE AS ABSORBER OIL
    Publication number: 20120172649
    Abstract: A process is disclosed for enhanced recovery of propylene and LPG from the fuel gas produced in Fluid catalytic cracking unit by contacting a heavier hydrocarbon feed with FCC catalyst. In the conventional process, the product mixture from FCC main column overhead comprising naphtha, LPG and fuel gas, are first condensed and gravity separated to produce unstabilized naphtha, which is subsequently used in the absorber to absorb propylene and LPG from fuel gas. However, the recovery of propylene beyond 97 wt % is difficult in this process since unstabilized naphtha already contains propylene of 5 mol % or above. In the present invention, C4 and lighter components from unstabilized naphtha are first stripped off in a separate column to obtain a liquid fraction almost free from propylene (<0.1 mol %) and other LPG components. Such a stripped liquid fraction, after cooling to 20° C. to 30° C.
    Type: Application
    Filed: June 9, 2010
    Publication date: July 5, 2012
    Inventors: Manoj Yadav, Sukumar Mandal, Asit Kumar Das, Yogesh Gupta, Minaz Makhania, Gobind Tulsi, Shailendra Arora, Shubhangi Jaguste