Patents by Inventor Rajeswar R. Gattupalli

Rajeswar R. Gattupalli 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 DESULFURIZATION OF NAPHTHA USING IONIC LIQUIDS
    Publication number: 20150001135
    Abstract: A process has been developed in which some of the sulfur in a naphtha feed is removed using ionic liquids. The ionic liquid desulfurization step, which operates at low temperatures and pressures, is followed by a catalytic hydrodesulfurizaton step.
    Type: Application
    Filed: June 27, 2013
    Publication date: January 1, 2015
    Inventors: Rajeswar R. Gattupalli, Soumendra M. Banerjee, Christopher P. Nicholas, Alakananda Bhatacharyya
  • Process for catalyst recovery and optional recycle in a slurry hydrocracking process
    Patent number: 8912111
    Abstract: A process for slurry hydrocracking catalyst recovery is described. In one embodiment, the process includes separating effluent from a slurry hydrocracking zone into a first portion comprising solvent and clarified pitch and a second portion comprising pitch and catalyst. The second portion is contacted with an acid to leach the catalyst out of the pitch forming an aqueous solution and pitch residue. The aqueous solution is contacted with an anion to form an insoluble salt which is the catalyst.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: December 16, 2014
    Assignee: UOP LLC
    Inventors: Rajeswar R. Gattupalli, Grant H. Yokomizo, Bart Dziabala
  • HYDROCARBON CONVERSION PROCESSES USING IONIC LIQUIDS
    Publication number: 20140353208
    Abstract: A method of hydrocarbon conversion is described. The hydrocarbon feed is decontaminated using an ionic liquid and introduced into a conversion zone. The conversion of the decontaminated feed is increased compared to the conversion of the contaminated feed and the yield of the desired product made from the decontaminated hydrocarbon feed is increased compared to the yield of the desired product made from the contaminated hydrocarbon feed.
    Type: Application
    Filed: May 31, 2013
    Publication date: December 4, 2014
    Inventors: Rajeswar R. Gattupalli, Beckay J. Mezza, Alakananda Bhattacharyya, Robert B. James, Massimo Sangalli, Peter Van Opdorp
  • PROCESS FOR REGENERATING IONIC LIQUIDS BY ADDING LIGHT HYDROCARBON STREAM
    Publication number: 20140291208
    Abstract: A process for removing at least one impurity from a hydrocarbon feed such as vacuum gas oil in which the process includes the steps of contacting the feed with a hydrocarbon-immiscible phosphonium ionic liquid to produce a hydrocarbon and hydrocarbon-immiscible phosphonium ionic liquid mixture, and separating the mixture to produce a hydrocarbon effluent having a reduced impurity content relative to the hydrocarbon feed.
    Type: Application
    Filed: March 27, 2013
    Publication date: October 2, 2014
    Applicant: UOP LLC
    Inventors: Rajeswar R. Gattupalli, Massimo Sangalli, Beckay J. Mezza, Alakananda Bhattacharyya
  • PROCESS FOR CATALYST RECOVERY AND OPTIONAL RECYCLE IN A SLURRY HYDROCRACKING PROCESS
    Publication number: 20140045679
    Abstract: A process for slurry hydrocracking catalyst recovery is described. In one embodiment, the process includes separating effluent from a slurry hydrocracking zone into a first portion comprising solvent and clarified pitch and a second portion comprising pitch and catalyst. The second portion is contacted with an acid to leach the catalyst out of the pitch forming an aqueous solution and pitch residue. The aqueous solution is contacted with an anion to form an insoluble salt which is the catalyst.
    Type: Application
    Filed: August 7, 2012
    Publication date: February 13, 2014
    Applicant: UOP LLC
    Inventors: Rajeswar R. Gattupalli, Grant H. Yokomizo, Bart Dziabala
  • HYDROCARBON CONVERSION PROCESS TO REMOVE METALS
    Publication number: 20140001092
    Abstract: The invention involves a process for hydrocarbon conversion. The process can include providing a feed to a primary upgrading zone and then treating the product from the primary upgrading zone with a feed-immiscible ionic liquid to remove metal compounds.
    Type: Application
    Filed: February 6, 2013
    Publication date: January 2, 2014
    Applicant: UOP LLC
    Inventors: Beckay J. Mezza, Haiyan Wang, Christopher P. Nicholas, Alakananda Bhattacharyya, Brenna E. Huovie, Rajeswar R. Gattupalli
  • HYDROCARBON CONVERSION PROCESS TO REMOVE CARBON RESIDUE CONTAMINANTS
    Publication number: 20140001094
    Abstract: The invention involves a process for hydrocarbon conversion. The process can include providing a feed to a primary upgrading zone and then treating the product from the primary upgrading zone with a feed-immiscible ionic liquid to remove carbon residue compounds.
    Type: Application
    Filed: February 6, 2013
    Publication date: January 2, 2014
    Applicant: UOP LLC
    Inventors: Beckay J. Mezza, Haiyan Wang, Christopher P. Nicholas, Alakananda Bhattacharyya, Brenna E. Huovie, Rajeswar R. Gattupalli
  • HYDROCARBON CONVERSION PROCESS
    Publication number: 20140001093
    Abstract: The invention involves a process for hydrocarbon conversion. The process can include providing a feed to a primary upgrading zone and then treating the product from the primary upgrading zone with a feed-immiscible ionic liquid to remove sulfur compounds.
    Type: Application
    Filed: February 6, 2013
    Publication date: January 2, 2014
    Applicant: UOP LLC
    Inventors: Beckay J. Mezza, Haiyan Wang, Christopher P. Nicholas, Alakananda Bhattacharyya, Brenna E. Huovie, Rajeswar R. Gattupalli
  • HYDROCARBON CONVERSION PROCESS
    Publication number: 20140001091
    Abstract: The invention involves a process for hydrocarbon conversion. The process can include providing a feed to a primary upgrading zone and then treating the product from the primary upgrading zone with a feed-immiscible ionic liquid to remove nitrogen compounds.
    Type: Application
    Filed: February 6, 2013
    Publication date: January 2, 2014
    Applicant: UOP LLC
    Inventors: Beckay J. Mezza, Haiyan Wang, Christopher P. Nicholas, Alakananda Bhattacharyya, Brenna E. Huovie, Rajeswar R. Gattupalli