Patents by Inventor Sriganesh Gandham

Sriganesh Gandham 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).

  • Patent number: 10294174
    Abstract: A catalyst composition is provided for isomerization of paraffins comprising of at least one heteropoly acid and reduced graphene oxide. Further provided are a process for preparation of the catalyst composition and a process for isomerization of paraffins using the catalytic composition.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: May 21, 2019
    Assignee: Hindustan Petroleum Corporation Ltd.
    Inventors: Raman Ravishankar, Safinaz Saif, Peddy Venkatachallapathy Rao, Venkateswarlu Choudary Nettem, Sriganesh Gandham
  • Patent number: 10287511
    Abstract: In accordance with the present subject matter there is provided a catalyst composition including 70-98% of a non-zeolitic material; and 2-30% of at least one zeolite material, the percentage being based on weight of the catalyst composition. The subject matter also relates to a method for preparation of the catalyst composition. The subject matter further relates to a process for the fluid catalytic cracking of a hydrocarbon feedstock.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: May 14, 2019
    Assignee: Hindustan Petroleum Corporation Ltd.
    Inventors: Pramod Kumar, Somanath Kukade, Hrishikesh Shriram Shidhaye, Venkata Chalapathi Rao Peddy, Venkateswarlu Choudary Nettem, Sriganesh Gandham
  • Publication number: 20180195011
    Abstract: The present disclosure relates to a catalyst for slurry phase hydrocracking of refinery residue and a process for its preparation. The present disclosure provides a very simple method for exfoliation of metal sulphide, and a process of that provides effective slurry phase hydrocracking of refinery residue with a high yield.
    Type: Application
    Filed: June 17, 2016
    Publication date: July 12, 2018
    Inventors: Venkateswarlu Choudary Nettem, Naga Raja Kanuparthy, Raman Ravishankar, Bipul Sarkar, Valavarasu Gnanesekaran, Chalapathi Rao Peddy Venkata, Sriganesh Gandham
  • Patent number: 9919984
    Abstract: The present disclosure relates to a process for the preparation of isomers of xylene. The process includes method step of contacting an activated alkylation catalyst composite with toluene and methanol in the presence of an inert gas, at a temperature of 300 to 500° C. to obtain isomers of xylene. The alkylation catalyst composite used in accordance with the present disclosure comprises a molecular sieve loaded with at least one metal ion. The metal loaded on the molecular sieve is at least one alkali earth metal selected from the group consisting of barium, strontium, magnesium and calcium.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: March 20, 2018
    Assignee: Hindustan Petroleum Corporation Limited
    Inventors: Raman Ravishankar, Venkata Chalapathi Rao Peddy, Venkateswarlu Choudary Nettem, Ganapati Shanbhag, Vijaykumar Marakatti, Anand Halgeri, Sriganesh Gandham
  • Patent number: 9908109
    Abstract: The present disclosure relates to a zeolite based catalyst composition comprising i. at least one rare earth metal, ii. at least one zeolite, and iii. optionally, at least one promoter; wherein, said rare earth metal is impregnated in said zeolite. The amount of said rare earth metal in said composition is in the range of 0.1 to 20 w/w %. The present disclosure also relates to a process for preparing a catalyst composition. Further, the present disclosure relates to a process for reducing olefin content in a hydrocarbon stream using the catalyst of the present disclosure.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: March 6, 2018
    Assignee: Hindustan Petroleum Corporation Limited
    Inventors: Raman Ravishankar, Sunil Mehla, Peddy Venkata Chalapathi Rao, Nettem Venkateswarlu Choudary, Sriganesh Gandham
  • Patent number: 9901910
    Abstract: The present disclosure relates to a catalyst composition comprising (a) at least one rare earth metal, (b) at least one zeolite, and (c) at least one diluent, wherein, said rare earth metal is impregnated in at least one of (b) and (c); the ratio of said zeolite to said diluent ranges from 1:9 to 9:1; and the amount of said rare earth metal is in the range of 0.1 to 20 w/w %. The present disclosure also relates to a process for preparing a catalyst composition. Further, the present disclosure relates to a process for reducing the olefin content in a hydrocarbon stream using the catalyst of the present disclosure.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: February 27, 2018
    Assignee: Hindustan Petroleum Corporation Limited
    Inventors: Raman Ravishankar, Sunil Mehla, Peddy Venkata Chalapathi Rao, Nettem Venkateswarlu Choudary, Sriganesh Gandham
  • Publication number: 20180002612
    Abstract: In accordance with the present subject matter there is provided a catalyst composition including 70-98% of a non-zeolitic material; and 2-30% of at least one zeolite material, the percentage being based on weight of the catalyst composition. The subject matter also relates to a method for preparation of the catalyst composition. The subject matter further relates to a process for the fluid catalytic cracking of a hydrocarbon feedstock.
    Type: Application
    Filed: June 3, 2016
    Publication date: January 4, 2018
    Inventors: Pramod Kumar, Somanath Kukade, Hrishikesh Shriram Shidhaye, Venkata Chalapathi Rao Peddy, Venkateswarlu Choudary Nettem, Sriganesh Gandham
  • Publication number: 20170174544
    Abstract: The present subject matter relates to the development of active catalyst composite based on supported transition metal oxides, especially, Cu, Co that are effective in the removal sulfides in the diluted spent caustic. The process for the reduction of sulfides in spent caustic comprises of reacting various organic and inorganic sulfides with molecular oxygen in the presence of active catalyst at various reaction temperatures ranging ambient to 200° C. and pressures between atmospheric pressure to 60 bars. The process also relates to complete scheme for the removal of sulfides in spent caustic.
    Type: Application
    Filed: May 6, 2015
    Publication date: June 22, 2017
    Inventors: Ramesh Kanaparthi, Peddy Venkat Chalapathi Rao, Nettem Venkateswarlu Choudary, Sriganesh Gandham
  • Publication number: 20170114288
    Abstract: Accordingly, the present invention provides a catalyst composition suitable for converting light naphtha comprising one or more of C5 to C8 carbon atoms to aromatic compounds ranging from C6 to C10 carbon atoms, said catalyst composition comprising: (a) a medium pore size zeolite; (b) 0.1 to 5.0 wt % of zinc; and (c) 0.1 to 5 wt % of gallium. Also, the present invention provides a process for converting light naphtha comprising one or more of C5 to C8 carbon atoms to aromatic compounds ranging from C6 to C10 carbon atoms, said process comprising the step of contacting a feedstock comprising the light naphtha with a catalyst composition comprising (a) a medium pore size zeolite; (b) 0.1 to 5.0 wt % of zinc; and (c) 0.1 to 5 wt % of gallium in presence of carrier gas at temperatures ranging from 400° to 600° C.
    Type: Application
    Filed: August 25, 2014
    Publication date: April 27, 2017
    Inventors: Raman Ravishankar, Peddy Venkat Chalapathi Rao, Nettem Venkateswarlu Choudary, Ganapati V. Shanbhag, Hodala Lakshminarayan Janardhan, Anand B. Halgeri, Sriganesh Gandham
  • Publication number: 20170001924
    Abstract: A catalyst composition is provided for isomerization of paraffins comprising of at least one heteropoly acid and reduced graphene oxide. Further provided are a process for preparation of the catalyst composition and a process for isomerization of paraffins using the catalytic composition.
    Type: Application
    Filed: December 15, 2015
    Publication date: January 5, 2017
    Inventors: RAMAN RAVISHANKAR, SAFINAZ SAIF, PEDDY VENKATACHALLAPATHY RAO, VENKATESWARLU CHOUDARY NETTEM, SRIGANESH GANDHAM
  • Publication number: 20170001180
    Abstract: A catalyst composition for isomerization of paraffins includes at least one metal, at least one heteropoly acid and a support material. Further provided are a process for preparation of the catalyst composition and a process for isomerization of paraffins using the catalytic composition.
    Type: Application
    Filed: December 15, 2015
    Publication date: January 5, 2017
    Inventors: RAMAN RAVISHANKAR, SAFINAZ SAIF, SUNIL MEHLA, BENNET CHELLIAN, PEDDY VENKATACHALLAPATHY RAO, VENKATESWARLU NETTEM, SRIGANESH GANDHAM
  • Publication number: 20160221893
    Abstract: The present disclosure relates to a process for the preparation of isomers of xylene. The process includes method step of contacting an activated alkylation catalyst composite with toluene and methanol in the presence of an inert gas, at a temperature of 300 to 500° C. to obtain isomers of xylene. The alkylation catalyst composite used in accordance with the present disclosure comprises a molecular sieve loaded with at least one metal ion. The metal loaded on the molecular sieve is at least one alkali earth metal selected from the group consisting of barium, strontium, magnesium and calcium.
    Type: Application
    Filed: October 25, 2013
    Publication date: August 4, 2016
    Inventors: Raman Ravishankar, Venkata Chalapathi Rao Peddy, Venkateswarlu Choudary Nettem, Ganapati Shanbhag, Vijaykumar Marakatti, Anand Halgeri, Sriganesh Gandham
  • Publication number: 20150273451
    Abstract: The present disclosure relates to a zeolite based catalyst composition comprising i. at least one rare earth metal, ii. at least one zeolite, and iii. optionally, at least one promoter; wherein, said rare earth metal is impregnated in said zeolite. The amount of said rare earth metal in said composition is in the range of 0.1 to 20 w/w %. The present disclosure also relates to a process for preparing a catalyst composition. Further, the present disclosure relates to a process for reducing olefin content in a hydrocarbon stream using the catalyst of the present disclosure.
    Type: Application
    Filed: March 31, 2015
    Publication date: October 1, 2015
    Inventors: Raman Ravishankar, Sunil Mehla, Peddy Venkata Chalapathi Rao, Nettem Venkateswarlu Choudary, Sriganesh Gandham
  • Publication number: 20150273448
    Abstract: The present disclosure relates to a catalyst composition comprising (a) at least one rare earth metal, (b) at least one zeolite, and (c) at least one diluent, wherein, said rare earth metal is impregnated in at least one of (b) and (c); the ratio of said zeolite to said diluent ranges from 1:9 to 9:1; and the amount of said rare earth metal is in the range of 0.1 to 20 w/w %. The present disclosure also relates to a process for preparing a catalyst composition. Further, the present disclosure relates to a process for reducing the olefin content in a hydrocarbon stream using the catalyst of the present disclosure.
    Type: Application
    Filed: March 27, 2015
    Publication date: October 1, 2015
    Inventors: Raman Ravishankar, Sunil Mehla, Peddy Venkata Chalapathi Rao, Nettem Venkateswarlu Choudary, Sriganesh Gandham