Patents by Inventor Roomi Kalita

Roomi Kalita 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).

  • Hexane as a by-product of isomerization unit using a dividing wall column
    Patent number: 11834405
    Abstract: A dividing wall column system for producing hexane includes a dividing wall column including a dividing wall that divides the dividing wall column at least partially into a first side and a second side, with one side of the first and second sides configured to operate as a deisohexanizer column and the other side of the first and second side configured to operate as a hexane column to produce hexane.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: December 5, 2023
    Assignees: BHARAT PETROLEUM CORPORATION LIMITED, SULZER MANAGEMENT AG
    Inventors: Manish Bhargava, Roomi Kalita, Amit Kanda, Pamaraju V Ravitej, Kondapalli Shreya Chaudhary
  • HEXANE AS A BY-PRODUCT OF ISOMERIZATION UNIT USING A DIVIDING WALL COLUMN
    Publication number: 20220227688
    Abstract: A dividing wall column system for producing hexane includes a dividing wall column including a dividing wall that divides the dividing wall column at least partially into a first side and a second side, with one side of the first and second sides configured to operate as a deisohexanizer column and the other side of the first and second side configured to operate as a hexane column to produce hexane.
    Type: Application
    Filed: May 14, 2020
    Publication date: July 21, 2022
    Inventors: Manish BHARGAVA, Roomi KALITA, Amit KANDA, Pamaraju V RAVITEJ, Kondapalli Shreya CHAUDHARY
  • Use of top dividing wall in isomerization unit
    Patent number: 11161055
    Abstract: The invention is directed to a combined naphtha hydrotreating (NHT) and isomerization process scheme, which includes dividing wall columns (DWC) that replace multiple distillation columns and allow optimized heat integration within the system. The disclosed design provides reductions in both capital and energy costs compared to conventional schemes.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: November 2, 2021
    Assignee: SULZER MANAGEMENT AG
    Inventors: Manish Bhargava, Roomi Kalita, Joseph C. Gentry
  • USE OF TOP DIVIDING WALL IN ISOMERIZATION UNIT
    Publication number: 20200223771
    Abstract: The invention is directed to a combined naphtha hydrotreating (NHT) and isomerization process scheme, which includes dividing wall columns (DWC) that replace multiple distillation columns and allow optimized heat integration within the system. The disclosed design provides reductions in both capital and energy costs compared to conventional schemes.
    Type: Application
    Filed: September 18, 2018
    Publication date: July 16, 2020
    Inventors: Manish Bhargava, Roomi Kalita, Joseph C. Gentry
  • Use of top dividing wall in isomerization unit
    Patent number: 10653974
    Abstract: The invention is directed to a combined naphtha hydrotreating (NHT) and isomerization process scheme, which includes dividing wall columns (DWC) that replace multiple distillation columns and allow optimized heat integration within the system. The disclosed design provides reductions in both capital and energy costs compared to conventional schemes.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: May 19, 2020
    Assignee: GTC Technology US LLC
    Inventors: Manish Bhargava, Roomi Kalita, Joseph C. Gentry
  • Network of dividing-wall columns in complex processing units
    Patent number: 10653975
    Abstract: A processing unit includes a naphtha hydrotreating unit comprising a first divided wall column, a naphtha splitter system, and a deisopentanizer column coupled to an output of a naphtha splitter of the naphtha splitter system, an isomerization unit coupled to an outlet of the deisopentanizer column, and a second divided wall column. The processing unit also includes an isomerization reactor coupled between the deisopentanizer column and the stabilizer column.
    Type: Grant
    Filed: April 27, 2019
    Date of Patent: May 19, 2020
    Assignee: GTC Technology US LLC
    Inventors: Manish Bhargava, Roomi Kalita, Amit Kanda
  • NETWORK OF DIVIDING-WALL COLUMNS IN COMPLEX PROCESSING UNITS
    Publication number: 20190329151
    Abstract: A processing unit includes a naphtha hydrotreating unit comprising a first divided wall column. The first divided wall column includes a wall dividing a top portion of the first divided wall column, an outlet associated with the second top section of the first divided wall column for recovery of liquid petroleum gas, and an outlet associated with a bottoms portion of the first divided wall column and coupled to a naphtha splitter system. The processing unit also includes a deisopentanizer column coupled to an output of a naphtha splitter of the naphtha splitter system, an isomerization unit coupled to an outlet of the deisopentanizer column, and a second divided wall column.
    Type: Application
    Filed: April 27, 2019
    Publication date: October 31, 2019
    Inventors: Manish Bhargava, Roomi Kalita, Amit Kanda
  • USE OF TOP DIVIDING WALL IN ISOMERIZATION UNIT
    Publication number: 20190083898
    Abstract: The invention is directed to a combined naphtha hydrotreating (NHT) and isomerization process scheme, which includes dividing wall columns (DWC) that replace multiple distillation columns and allow optimized heat integration within the system. The disclosed design provides reductions in both capital and energy costs compared to conventional schemes.
    Type: Application
    Filed: September 18, 2018
    Publication date: March 21, 2019
    Inventors: Manish Bhargava, Roomi Kalita, Joseph C. Gentry