Patents by Inventor Pranab Kumar Rakshit

Pranab Kumar Rakshit 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: 20190234928
    Abstract: Methods and systems for predicting crude oil blend compatibility and optimizing blends for increasing heavy crude oil processing are described. The method includes receiving ratios of physical parameters of crude oils for optimization of crude oil blend. The physical parameter ratios are based on Kinematic Viscosity (V), Sulphur (S), Carbon Residue (C), and American Petroleum Institute (API) gravity. The crude oil blend compatibility (K model) is determined and generated using the physical parameter ratios. The K model is developed by coefficients obtained by regression analysis between the ratios of physical parameters of known crude oils and composite compatibility measure determined from multiple compatibility test results of the known crude oils. The predicted crude oil blend compatibility can be used for optimizing heavy crude oil processing.
    Type: Application
    Filed: March 27, 2018
    Publication date: August 1, 2019
    Inventors: Rajeev Kumar, Ravi Kumar Voolapalli, Pranab Kumar Rakshit, Sanjay Bhargava, Sreedevi Upadhyayula
  • Patent number: 10365263
    Abstract: Methods and systems for predicting crude oil blend compatibility and optimizing blends for increasing heavy crude oil processing are described. The method includes receiving ratios of physical parameters of crude oils for optimization of crude oil blend. The physical parameter ratios are based on Kinematic Viscosity (V), Sulphur (S), Carbon Residue (C), and American Petroleum Institute (API) gravity. The crude oil blend compatibility (K model) is determined and generated using the physical parameter ratios. The K model is developed by coefficients obtained by regression analysis between the ratios of physical parameters of known crude oils and composite compatibility measure determined from multiple compatibility test results of the known crude oils. The predicted crude oil blend compatibility can be used for optimizing heavy crude oil processing.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: July 30, 2019
    Assignees: Indian Institute of Technology, Delhi, Bharat Petroleum Corporation Limited
    Inventors: Rajeev Kumar, Ravi Kumar Voolapalli, Pranab Kumar Rakshit, Sanjay Bhargava, Sreedevi Upadhyayula
  • Publication number: 20190153341
    Abstract: The present invention relates to a process for co-gasification of two or more carbonaceous feedstock, said process comprising combusting a first carbonaceous feedstock having high calorific value with low ash and high hydrogen content, to produce a heated effluent; carrying the heated effluent to second reactor where the heated effluent reacts with a second carbonaceous feedstock, having low calorific value with high ash and low hydrogen content, to produce synthesis gas.
    Type: Application
    Filed: December 11, 2018
    Publication date: May 23, 2019
    Inventors: Pranab Kumar Rakshit, Ravi Kumar Voolapalli, Pintu Maity
  • Patent number: 10174265
    Abstract: The present invention relates to a process for co-gasification of two or more carbonaceous feedstock, said process comprising combusting a first carbonaceous feedstock having high calorific value with low ash and high hydrogen content, to produce a heated effluent; carrying the heated effluent to second reactor where the heated effluent reacts with a second carbonaceous feedstock, having low calorific value with high ash and low hydrogen content, to produce synthesis gas.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: January 8, 2019
    Assignee: BHARAT PETROLEUM CORPORATION LIMITED
    Inventors: Pranab Kumar Rakshit, Ravi Kumar Voolapalli, Pintu Maity
  • Patent number: 8927611
    Abstract: The invention discloses an improved multistage fischer tropsch process scheme for the production of hydrocarbon fuels comprising feeding gaseous phase syngas and liquid stream hydrocarbons in a counter current manner such as herein described into the reaction vessel at a number of stages containing reaction catalysts; wherein fresh syngas enters into the stage where the product liquid stream leaves and the fresh liquid stream enters into the stage where the unreacted syngas leaves; wherein further the temperature of each stage can be controlled independently. More particularly the invention relates to improving the heat release in different reactors, product selectivity and reactor productivity of FT reactors.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: January 6, 2015
    Assignee: Bharat Petroleum Corporation Limited
    Inventors: Ravi Kumar Voolapalli, Pranab Kumar Rakshit, Venkateswarlu Choudary Nettem, Mohammad Amir Siddiqui
  • Publication number: 20140090298
    Abstract: The present invention relates to a process for co-gasification of two or more carbonaceous feedstock, said process comprising combusting a first carbonaceous feedstock having high calorific value with low ash and high hydrogen content, to produce a heated effluent; carrying the heated effluent to second reactor where the heated effluent reacts with a second carbonaceous feedstock, having low calorific value with high ash and low hydrogen content, to produce synthesis gas.
    Type: Application
    Filed: December 29, 2011
    Publication date: April 3, 2014
    Applicant: BHARAT PETROLEUM CORPORATION LIMITED
    Inventors: Pranab Kumar Rakshit, Ravi Kumar Voolapalli, Pintu Maity
  • Publication number: 20120071572
    Abstract: The invention discloses an improved multistage fischer tropsch process scheme for the production of hydrocarbon fuels comprising feeding gaseous phase syngas and liquid stream hydrocarbons in a counter current manner such as herein described into the reaction vessel at a number of stages containing reaction catalysts; wherein fresh syngas enters into the stage where the product liquid stream leaves and the fresh liquid stream enters into the stage where the unreacted syngas leaves; wherein further the temperature of each stage can be controlled independently. More particularly the invention relates to improving the heat release in different reactors, product selectivity and reactor productivity of FT reactors.
    Type: Application
    Filed: December 30, 2009
    Publication date: March 22, 2012
    Inventors: Ravi Kumar Voolapalli, Pranab Kumar Rakshit, Venkateswarlu Choudary Nettem, Mohammad Amir Siddiqui