Patents by Inventor Ravindra Prajapati

Ravindra Prajapati 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).

  • Slurry phase organic-inorganic fused hybrid catalyst for residue hydroprocessing and process for preparation thereof
    Patent number: 10857532
    Abstract: Oil soluble organic-inorganic fused slurry phase hydroprocessing catalysts for heavy oils and residues are prepared at supercritical conditions. The hydrodemetallization, hydrodesulfurization, asphaltene conversion and hydrocracking activities of a residue having high percentage of metals, sulfur and asphaltene have been tested in an autoclave batch reactor. The different organic compounds are used to modify the solid fused material (catalyst). The effect of the concentration of modifier on the hydroprocessing and hydrocracking reactions has also been investigated.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: December 8, 2020
    Assignee: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Ravindra Prajapati, Kirtika Kohli, Samir Kumar Maity, Madhukar Onkarnath Garg
  • Process for upgradation of heavy crude oil/residue using waste plastic as hydrogen donating agent
    Patent number: 10745629
    Abstract: Waste plastics are mixed with heavy crude and vacuum residues at temperature within the range from 180-220° C. and the resulting mixture are hydroprocessed to produce lighter products. The hydrodemetallization, asphaltene conversion and hydrocracking activities of the resulting mixture have been tested in an autoclave batch reactor. This process provides a very cheap material and method to upgrade problematic feeds to produce transportation fuels.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: August 18, 2020
    Assignee: Council of Scientific and Industrial Research
    Inventors: Kiritika Kohli, Ravindra Prajapati, Samir Kumar Maity, Madhukar Onkarnath Garg
  • PROCESS FOR UPGRADATION OF HEAVY CRUDE OIL/RESIDUE USING WASTE PLASTIC AS HYDROGEN DONATING AGENT
    Publication number: 20180201847
    Abstract: Waste plastics are mixed with heavy crude and vacuum residues at temperature within the range from 180-220° C. and the resulting mixture are hydroprocessed to produce lighter products. The hydrodemetallization, asphaltene conversion and hydrocracking activities of the resulting mixture have been tested in an autoclave batch reactor. This process provides a very cheap material and method to upgrade problematic feeds to produce transportation fuels.
    Type: Application
    Filed: January 3, 2018
    Publication date: July 19, 2018
    Inventors: Kiritika Kohli, Ravindra Prajapati, Samir Kumar Maity, Madhukar Onkarnath Garg
  • SLURRY PHASE ORGANIC-INORGANIC FUSED HYBRID CATALYST FOR RESIDUE HYDROPROCESSING AND PROCESS FOR PREPARATION THEREOF
    Publication number: 20160288101
    Abstract: Oil soluble organic-inorganic fused slurry phase hydroprocessing catalysts for heavy oils and residues are prepared at supercritical conditions. The hydrodemetallization, hydrodesulfurization, asphaltene conversion and hydrocracking activities of a residue having high percentage of metals, sulfur and asphaltene have been tested in an autoclave batch reactor. The different organic compounds are used to modify the solid fused material (catalyst). The effect of the concentration of modifier on the hydroprocessing and hydrocracking reactions has also been investigated.
    Type: Application
    Filed: March 30, 2016
    Publication date: October 6, 2016
    Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Ravindra Prajapati, Kirtika Kohli, Samir Kumar Maity, Madhukar Onkarnath Garg