Patents by Inventor Jagannathan Govindhakannan

Jagannathan Govindhakannan 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).

  • Publication number: 20220040629
    Abstract: Processes for the treatment of waste streams from the hydroconversion of heavy hydrocarbons containing additives and catalysts are described. At least one of the SHC pitch stream, SDA pitch stream, and the heavy residue stream is sent to a thermal oxidation system. The metals in the SHC and SDA pitch streams and the heavy residue stream are oxidized and can be easily recovered as clean powdered metal oxides which can be reused or sold. The processes produce chemicals which can be recovered and sold.
    Type: Application
    Filed: June 29, 2021
    Publication date: February 10, 2022
    Inventors: Nicholas R. Edmoundson, William J. Whyman, Randall Tucker Watts, Kenny M. Arnold, Jagannathan Govindhakannan, Gary R. Brierley, Christopher J. Anderle, Mark Van Wees, Jan De Ren
  • Patent number: 10703994
    Abstract: Solvent deasphalting (SDA) in series is used to extract deasphalted oil from heavier hydrocarbons in series. Instead of stripping the pitch material of solvent in the second stage which can stick in the pitch stripper and inhibit flow, a dryer is used to vaporize solvent for recycle to the second SDA unit and produce pitch solids.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: July 7, 2020
    Assignee: UOP LLC
    Inventors: Jagannathan Govindhakannan, Hans G. Lefebvre
  • Publication number: 20190233746
    Abstract: Solvent deasphalting (SDA) is used to extract deasphalted oil from heavier hydrocarbons in series. The pitch stream from solvent deasphalting is calcined to recover volatile hydrocarbon vapor products and calcined solids. The hydrocarbon vapors can be fractionated to recover valuable transportation range fuel products. The pitch stream can be first fed to the fractionation column before calcination.
    Type: Application
    Filed: January 31, 2018
    Publication date: August 1, 2019
    Inventors: Jagannathan Govindhakannan, Hans G. Lefebvre
  • Publication number: 20190093025
    Abstract: Solvent deasphalting (SDA) in series is used to extract deasphalted oil from heavier hydrocarbons in series. Instead of stripping the pitch material of solvent in the second stage which can stick in the pitch stripper and inhibit flow, a dryer is used to vaporize solvent for recycle to the second SDA unit and produce pitch solids.
    Type: Application
    Filed: September 28, 2017
    Publication date: March 28, 2019
    Inventors: Jagannathan Govindhakannan, Hans G. Lefebvre
  • Patent number: 10041011
    Abstract: A process for recovering hydrocarbons from a slurry hydrocracking reactor. The hydrocarbons are recovered by taking a drag stream of the slurry in the reactor. After separating lighter hydrocarbons in a separation zone, the heavier hydrocarbons can be processed in a deashing zone, with a vacuum column bottoms from a separation of the effluent stream recovered from the reactor. The deashing zone can recover the heavier hydrocarbons in a deashed pitch. Additionally, a VGO rich stream from the deashing zone may be recycled back to the reactor.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: August 7, 2018
    Assignee: UOP LLC
    Inventors: Jagannathan Govindhakannan, Robert Haizmann, Trung Pham, Hans G. Lefebvre
  • Patent number: 10041004
    Abstract: A process for de-ashing pitch. The pitch from a slurry hydrocracking process is mixed with a solvent. The mixture is separated into solvent and soluble materials and insoluble materials. The insoluble materials can be dried to recover solvent which may be recycled. The solvent and soluble materials are separated. The solvent may be recovered and recycled. Hi-Sol 15 may be the solvent. Additionally, CSO may be the solvent and a portion thereof may be used with the de-ashed pitch to make an asphalt binder.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: August 7, 2018
    Assignee: UOP LLC
    Inventors: Jagannathan Govindhakannan, Grant H. Yokomizo, Robert Haizmann, Hans G. Lefebvre, Trung Pham, Andrew J. Towarnicky
  • Patent number: 9783748
    Abstract: One exemplary embodiment can be a process for producing a diesel fuel. The process can include providing a hydrocarbon feed to a residue processing unit. Generally, the residue processing unit includes a solvent deasphalting zone, a hydroprocessing zone, and a hydroprocessing fractionation zone. The process can further include recycling at least a portion of an unconverted oil stream from the hydroprocessing fractionation zone, and sending one part of the at least a portion of the recycled unconverted oil stream to the unconverted oil fractionation zone providing a light unconverted oil stream downstream of the solvent deasphalting zone and a heavy unconverted oil stream to the solvent deasphalting zone.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: October 10, 2017
    Assignee: UOP LLC
    Inventors: Craig Harvey, Haiyan Wang, B. Daniel Thomas, Brian Ganyu, Jagannathan Govindhakannan
  • Patent number: 9567654
    Abstract: A binder for making metallurgical coke and a process for making the binder. The binder is thermally hydrocracked pitch which has been de-ashed. The binder may be mixed with low rank bituminous coal, heated to make coke which is acceptable as a metallurgical coke. The thermally hydrocracked pitch may be de-ashed by mixing with a solvent, and separating the insoluble portions from the soluble portions using a centrifuge. The soluble portions may be separated from the solvent, for example, in a fractionating section, and used as the binder with poor coking coal to make metallurgical coke.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: February 14, 2017
    Assignee: UOP LLC
    Inventor: Jagannathan Govindhakannan
  • Publication number: 20160130511
    Abstract: A process for recovering hydrocarbons from a slurry hydrocracking reactor. The hydrocarbons are recovered by taking a drag stream of the slurry in the reactor. After separating lighter hydrocarbons in a separation zone, the heavier hydrocarbons can be processed in a deashing zone, with a vacuum column bottoms from a separation of the effluent stream recovered from the reactor. The deashing zone can recover the heavier hydrocarbons in a deashed pitch. Additionally, a VGO rich stream from the deashing zone may be recycled back to the reactor.
    Type: Application
    Filed: November 6, 2014
    Publication date: May 12, 2016
    Inventors: Jagannathan Govindhakannan, Robert Haizmann, Trung Pham, Hans G. Lefebvre
  • Publication number: 20160130506
    Abstract: A process for de-ashing pitch. The pitch from a slurry hydrocracking process is mixed with a solvent. The mixture is separated into solvent and soluble materials and insoluble materials. The insoluble materials can be dried to recover solvent which may be recycled. The solvent and soluble materials are separated. The solvent may be recovered and recycled. Hi-Sol 15 may be the solvent. Additionally, CSO may be the solvent and a portion thereof may be used with the de-ashed pitch to make an asphalt binder.
    Type: Application
    Filed: November 6, 2014
    Publication date: May 12, 2016
    Inventors: Jagannathan Govindhakannan, Grant H. Yokomizo, Robert Haizmann, Hans G. Lefebvre, Trung Pham, Andrew J. Towarnicky
  • Publication number: 20160068767
    Abstract: One exemplary embodiment can be a process for producing a diesel fuel. The process can include providing a hydrocarbon feed to a residue processing unit. Generally, the residue processing unit includes a solvent deasphalting zone, a hydroprocessing zone, and a hydroprocessing fractionation zone. The process can further include recycling at least a portion of an unconverted oil stream from the hydroprocessing fractionation zone, and sending one part of the at least a portion of the recycled unconverted oil stream to the unconverted oil fractionation zone providing a light unconverted oil stream downstream of the solvent deasphalting zone and a heavy unconverted oil stream to the solvent deasphalting zone.
    Type: Application
    Filed: September 9, 2014
    Publication date: March 10, 2016
    Inventors: Craig Harvey, Haiyan Wang, B. Daniel Thomas, Brian Ganyu, Jagannathan Govindhakannan
  • Publication number: 20150368745
    Abstract: A binder for making metallurgical coke and a process for making the binder. The binder is thermally hydrocracked pitch which has been de-ashed. The binder may be mixed with low rank bituminous coal, heated to make coke which is acceptable as a metallurgical coke. The thermally hydrocracked pitch may be de-ashed by mixing with a solvent, and separating the insoluble portions from the soluble portions using a centrifuge. The soluble portions may be separated from the solvent, for example, in a fractionating section, and used as the binder with poor coking coal to make metallurgical coke.
    Type: Application
    Filed: June 24, 2014
    Publication date: December 24, 2015
    Inventor: Jagannathan Govindhakannan
  • Patent number: 9127216
    Abstract: One exemplary embodiment can be a process for recycling a deashed pitch to a slurry hydrocracking zone. The process may include adding a solvent to a neat pitch to obtain a mixture, separating a supernate and a precipitate from the mixture, segregating the solvent from the supernate, and recycling the deashed pitch from the supernate to the slurry hydrocracking zone.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: September 8, 2015
    Assignee: UOP LLC
    Inventors: Jagannathan Govindhakannan, Grant Yokomizo
  • Publication number: 20140332442
    Abstract: One exemplary embodiment can be a process for recycling a deashed pitch to a slurry hydrocracking zone. The process may include adding a solvent to a neat pitch to obtain a mixture, separating a supernate and a precipitate from the mixture, segregating the solvent from the supernate, and recycling the deashed pitch from the supernate to the slurry hydrocracking zone.
    Type: Application
    Filed: May 7, 2013
    Publication date: November 13, 2014
    Inventors: Jagannathan Govindhakannan, Grant Yokomizo