Patents by Inventor Bipul Sarkar

Bipul Sarkar 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: 20240025820
    Abstract: The present invention is related to a process for the conversion of used cooking oil into aromatics (BTEX) hydrocarbon as petrochemical building blocks. The process provides an aromatic rich hydrocarbon from used cooking oil in the presence and absence of steam/hydrogen over supported bimetallic alumina-silicates zeolites. The catalyst contains no precious metal entities and may contain one metal form zinc (Zn), a second metal (X), comprising at least one selected from cobalt (Co), gallium (Ga), chromium (Cr), Iron (Fe) and third elements from cerium (Ce), boron (B) supported on alumina-silicates zeolites. The present invention relates to a catalyst excluding novel metals to produce aromatics in a continuous fixed bed reactor system under atmospheric pressure. More particularly, the present invention relates to a low-temperature process to produce aromatic over alumina-silicates zeolites. The process provides used cooking oil conversion of 84-89% with aromatic selectivity of 87-91%.
    Type: Application
    Filed: July 19, 2023
    Publication date: January 25, 2024
    Applicant: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH AN INDIAN REGISTERED BODY INCORPORATED
    Inventors: Bipul SARKAR, Om Vir SINGH, Ankit AGRAWAL, Anjan RAY, Sanat KUMAR, Bhanu Prasad VEMPATAPU, Jagdish KUMAR
  • Patent number: 11654420
    Abstract: A process and catalyst are provided for the non-oxidative dehydrogenation of propane for the production of propylene as petrochemical building blocks. The process provides a direct single-step gas-phase dehydration of propane mixed with nitrogen in the presence and absence of steam/hydrogen over supported bimetallic alumina-silicates zeolites. The catalyst contains no precious metal entities and may contain one metal from group VIB in combination with another metal from group IIIA or IVA supported on FAU, MFI, KFI, BEA type alumina-silicates zeolites. The process provides a propane conversion of 18% to 52% with a propylene yield of 10% to 25%.
    Type: Grant
    Filed: July 1, 2021
    Date of Patent: May 23, 2023
    Assignee: Council of Scientific & Industrial Research
    Inventors: Bipul Sarkar, Ankit Agrawal, Om Vir Singh, Indrajit Kumar Ghosh, Shailendra Tripathi, Sanat Kumar, Anjan Ray
  • Publication number: 20220001359
    Abstract: A process and catalyst are provided for the non-oxidative dehydrogenation of propane for the production of propylene as petrochemical building blocks. The process provides a direct single-step gas-phase dehydration of propane mixed with nitrogen in the presence and absence of steam/hydrogen over supported bimetallic alumina-silicates zeolites. The catalyst contains no precious metal entities and may contain one metal from group VIB in combination with another metal from group IIIA or IVA supported on FAU, MFI, KFI, BEA type alumina-silicates zeolites. The process provides a propane conversion of 18% to 52% with a propylene yield of 10% to 25%.
    Type: Application
    Filed: July 1, 2021
    Publication date: January 6, 2022
    Inventors: Bipul Sarkar, Ankit Agrawal, Om Vir Singh, Indrajit Kumar Ghosh, Shailendra Tripathi, Sanat Kumar, Anjan Ray
  • Patent number: 10717940
    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: Grant
    Filed: June 17, 2016
    Date of Patent: July 21, 2020
    Assignee: Hindustan Petroleum Corporation Limited
    Inventors: Nettem Venkateswarlu Choudary, Kanuparthy Naga Raja, Raman Ravishankar, Bipul Sarkar, Valavarasu Gnanesekaran, Peddy Venkata Chalapathi Rao, 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: 9908101
    Abstract: The present invention provides a process and catalyst for the direct and selective conversion of ethane to ethylene. The process provides a direct single step vapor phase selective dehydrogenation/oxidative dehydrogenation of ethane to ethylene over Mo supported nanocrystalline TiO2. The process provides ethane conversion of 65-96% and selectivity of ethylene up to 100%. The process may be conducted in the presence or absence of oxygen.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: March 6, 2018
    Assignee: Council of Scientific & Industrial Research
    Inventors: Rajaram Bal, Bipul Sarkar, Rajib Kumar Singha, Chandrashekar Pendem, Shubhra Acharyya Shankha, Shilpi Ghosh
  • Patent number: 9889434
    Abstract: The present invention provides a process and catalyst for the autothermal and dry reforming of methane to produce syngas. The process provides a direct single step gas phase reforming of methane or natural gas to syngas over Ni—Pt supported nanocrystalline ZrO2. The process provides methane conversion of 54-99% with H2/CO ratio of 1.14 to 1.42 (mol %) in the temperature range of 250 to 750 800° C. at atmospheric pressure.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: February 13, 2018
    Assignee: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Rajaram Bal, Bipul Sarkar, Reena Goyal, Ankur Bordoloi, Chandrashekar Pendem, Laxmi Narayan Sivakumar Konathala
  • Publication number: 20170043324
    Abstract: The present invention provides a process and catalyst for the autothermal and dry reforming of methane to produce syngas. The process provides a direct single step gas phase reforming of methane or natural gas to syngas over Ni—Pt supported nanocrystalline ZrO2. The process provides methane conversion of 54-99% with H2/CO ratio of 1.14 to 1.42 (mol %) in the temperature range of 250 to 750 800° C. at atmospheric pressure.
    Type: Application
    Filed: August 10, 2016
    Publication date: February 16, 2017
    Inventors: Rajaram Bal, Bipul Sarkar, Reena Goyal, Ankur Bordoloi, Chandrashekar Pendem, Laxmi Narayan Sivakumar Konathala
  • Patent number: 9409847
    Abstract: The present invention provides a process and a solid catalyst for oxydehydration of glycerol to acrylic acid with H2O2 under mild experimental condition at atmospheric pressure. The process provides a single step liquid phase selective oxidation glycerol to acrylic acid over nanocrystalline Cu supported ?-MnO2 catalyst. The process provides glycerol conversion of 20-78% and selectivity of acrylic acid up to 86%.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: August 9, 2016
    Assignee: Council of Scientific & Industrial Research
    Inventors: Rajaram Bal, Bipul Sarkar, Rajib Kumar Singha, Chandrashekar Pendem, Shubhra Acharyya Shankha, Shilpi Ghosh
  • Patent number: 9192923
    Abstract: The present invention provides a coke resistant catalyst and process for sequestration of carbon dioxide via reforming of methane to synthesis gas (a mixture of CO and H2). The process provides a direct single step selective vapor phase carbon dioxide reforming of methane to syngas over gadolinium promoted mesoporous Ni-ZSM catalyst. The process provides almost 11-95% conversion of methane with H2 to CO ratio of 0.82 to 1.
    Type: Grant
    Filed: November 25, 2013
    Date of Patent: November 24, 2015
    Assignee: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Rajaram Bal, Bipul Sarkar, Chandrasekhar Pendem, Rajib Kumar Singha, Shankha Shubhra Acharyya, Shilpi Ghosh
  • Patent number: 9174200
    Abstract: The present invention provides a process for preparation of Ag—W oxide catalyst for the direct and selective conversion of propylene to propylene oxide. The process provides a direct single step selective vapor phase oxidation of propylene to propylene oxide using molecular oxygen over Ag—W oxide catalysts. The process provides propylene conversion of 10-50% and selectivity for propylene oxide up to 100%.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: November 3, 2015
    Assignee: Council of Scientific and Industrial Research
    Inventors: Rajaram Bal, Shilpi Ghosh, Shubhra Acharyya Shanka, Bipul Sarkar, Chandrashekar Pendem, Rajib Kumar Singha
  • Publication number: 20140364636
    Abstract: The present invention provides a process for preparation of Ag-W oxide catalyst for the direct and selective conversion of propylene to propylene oxide. The process provides a direct single step selective vapour phase oxidation of propylene to propylene oxide using molecular oxygen over Ag-W oxide catalysts. The process provides propylene conversion of 10-50% and selectivity for propylene oxide up to 100%.
    Type: Application
    Filed: December 21, 2012
    Publication date: December 11, 2014
    Inventors: Rajaram Bal, Shilpi Ghosh, Ghubhra Acharyya Shanka, Bipul Sarkar, Chandrashekar Pendem, Rajib Kumar Singha
  • Patent number: 8772552
    Abstract: The present invention provides an improved process for the selective hydroxylation of benzene. The process provides a direct single step selective vapor phase hydroxylation of benzene to phenol using molecular oxygen (air) over Cu—Cr oxide catalysts. The process provides benzene conversion of 10 to 45% and selectivity for phenol up to 100%.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: July 8, 2014
    Assignee: Council of Scientific & Industrial Research
    Inventors: Rajaram Bal, Shubhra Acharyya Shankha, Shilpi Ghosh, Bipul Sarkar, Karan Singh Rawat, Chandrashekar Pendem
  • Publication number: 20140145117
    Abstract: The present invention provides a coke resistant catalyst and process for sequestration of carbon dioxide via reforming of methane to synthesis gas (a mixture of CO and H2). The process provides a direct single step selective vapour phase carbon dioxide reforming of methane to syngas over gadolinium promoted mesoporous Ni-ZSM catalyst. The process provides almost 11-95% conversion of methane with H2 to CO ratio of 0.82 to 1.
    Type: Application
    Filed: November 25, 2013
    Publication date: May 29, 2014
    Applicant: Council of Scientific & Industrial Research
    Inventors: RAJARAM BAL, BIPUL SARKAR, CHANDRASEKHAR PENDEM, RAJIB KUMAR SINGHA, SHANKHA SHUBHRA ACHARYYA, SHILPI GHOSH
  • Publication number: 20140128653
    Abstract: The present invention provides a process and catalyst for the direct and selective conversion of ethane to ethylene. The process provides a direct single step vapor phase selective dehydrogenation/oxidative dehydrogenation of ethane to ethylene over Mo supported nanocrystalline TiO2. The process provides ethane conversion of 65-96% and selectivity of ethylene up to 100%. The process may be conducted in the presence or absence of oxygen.
    Type: Application
    Filed: November 7, 2013
    Publication date: May 8, 2014
    Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: RAJARAM BAL, BIPUL SARKAR, RAJIB KUMAR SINGHA, CHANDRASHEKAR PENDEM, SHUBHRA ACHARYYA SHANKHA, SHILPI GHOSH
  • Publication number: 20140128632
    Abstract: The present invention provides a process and a solid catalyst for oxydehydration of glycerol to acrylic acid with H2O2 under mild experimental condition at atmospheric pressure. The process provides a single step liquid phase selective oxidation glycerol to acrylic acid over nanocrystalline Cu supported ?-MnO2 catalyst. The process provides glycerol conversion of 20-78% and selectivity of acrylic acid up to 86%.
    Type: Application
    Filed: November 6, 2013
    Publication date: May 8, 2014
    Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: RAJARAM BAL, BIPUL SARKAR, RAJIB KUMAR SINGHA, CHANDRASHEKAR PENDEM, SHUBHRA ACHARYYA SHANKHA, SHILPI GHOSH
  • Patent number: 8697916
    Abstract: The present invention provides a process for the preparation of Cu—Cr oxides by hydrothermal synthesis method using hydrazine as a reducing agent and cetyltrimethylammonium bromide as a surfactant and these oxides are very active for selective oxidation of benzene, toluene and ethylbenzene to produce phenol, benzaldehyde and acetophenone, respectively.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: April 15, 2014
    Assignee: Council of Scientific & Industrial Research
    Inventors: Rajaram Bal, Bipul Sarkar, Shubhra Acharyya Shankha, Shilpi Ghosh, Chandrashekar Pendem, Kumar Jagdish