Patents by Inventor Prakash Kulkarni

Prakash Kulkarni 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: 8495882
    Abstract: A syngas cleanup section includes a water-gas shift reactor, a first operation unit and a second operation unit. The first operation unit includes a high permeance membrane with H2/CO2 selectivity in flow communication with the water-gas shift reactor to provide a H2-rich permeate stream and an H2-poor retentate stream. The second operation unit recovers H2 and CO from the retentate stream to produce a single, CO2-rich product stream, the entire content of which has a minimum pressure of at least about 10.0 bar. In one embodiment, the second operation unit includes a membrane with Knudsen selectivity for permeating H2, CO and CO2. In this embodiment, the permeate streams are combined to produce a H2 and CO-rich fuel stream used by a combined cycle power generation unit to produce electricity, and the retentate stream is sent to a catalytic oxidation unit to produce the CO2-rich product stream. In another embodiment, the second operation unit is the catalytic oxidation unit.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: July 30, 2013
    Assignee: General Electric Company
    Inventors: Anthony Yu-Chung Ku, Harish Radhakrishna Acharya, Parag Prakash Kulkarni, Scott Michael Miller, William Cook Livingood, III
  • Publication number: 20130145773
    Abstract: A method of separating carbon dioxide (CO2) from nitrogen (N2) and oxygen (O2) within a turbine engine system includes, in an exemplary embodiment, directing an air stream into an air separation unit (ASU), separating N2 from the air stream in the ASU to form an oxygen (O2) rich air stream, and directing the O2 rich air stream to the combustor to mix with a fuel for combustion forming hot combustion gases, containing O2 and CO2, which are used to rotate the turbine. The method also includes directing turbine expander exhaust gases to a heat recovery steam generator (HRSG) to create steam, directing exhaust from the HRSG to a condenser to separate water from a mixture of O2 and CO2 gases, and directing the mixture of O2 and CO2 gases to a separation system where the CO2 is separated from the O2 gases and removed from the separation system.
    Type: Application
    Filed: December 13, 2011
    Publication date: June 13, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Parag Prakash Kulkarni, Samuel David Draper, Roger Allen Shisler
  • Patent number: 8407989
    Abstract: A method of regenerating a particulate filter of an exhaust system of an engine system is disclosed. The method may include determining a condition indicative of an accumulation of hydrocarbons in the particulate filter, and monitoring the particulate filter to determine when to initiate regeneration of the particulate filter. The method may also include selecting a regeneration profile for regeneration of the particulate filter based on the determined condition, and regenerating the particulate filter in accordance with the regeneration profile.
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: April 2, 2013
    Assignee: Caterpillar Inc.
    Inventors: Matthew Edward Leustek, Vadiraj Prakash Kulkarni, Sylvain Joseph Charbonnel
  • Patent number: 8381525
    Abstract: A system and method of reducing gas turbine nitric oxide emissions includes a first combustion stage configured to burn air vitiated with diluents to generate first combustion stage products. A second combustion stage is configured to burn the first combustion stage products in combination with enriched oxygen to generate second combustion stage products having a lower level of nitric oxide emissions than that achievable through combustion with vitiated air alone or through combustion staging alone.
    Type: Grant
    Filed: September 30, 2009
    Date of Patent: February 26, 2013
    Assignee: General Electric Company
    Inventors: Ahmed Mostafa ELKady, Narendra Digamber Joshi, Parag Prakash Kulkarni, Christian Lee Vandervort, Krishnakumar Venkatesan
  • Publication number: 20130025294
    Abstract: A carbon dioxide (CO2) removal system includes an external heat transfer device. The CO2 removal system also includes a magnetocaloric heat transfer device coupled in flow communication with the external heat transfer device. The CO2 removal system further includes a cryogenic CO2 capture system coupled in flow communication with the magnetocaloric heat transfer device.
    Type: Application
    Filed: July 28, 2011
    Publication date: January 31, 2013
    Inventors: Christian Vogel, Miguel Angel Gonzalez Salazar, Parag Prakash Kulkarni
  • Publication number: 20130000352
    Abstract: A system comprising an air separation unit (ASU) is provided. The ASU is configured to produce liquid nitrogen and pressurize to higher pressure using a pump. ASU may be further configured to produce liquid oxygen that can be directly pressurized to be used in required applications. System may further include oxy-fuel combustion system, integrated gas turbines and integrated enhanced oil and/or gas recovery units. Methods of operating the system included.
    Type: Application
    Filed: June 30, 2011
    Publication date: January 3, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Miguel Angel Gonzalez Salazar, Parag Prakash Kulkarni, Gregory Matthew Knott
  • Patent number: 8338767
    Abstract: A cooking appliance includes a housing forming a food handling compartment, a door positioned at the front of the housing that is configured to rotate about a vertical axis, and a hinge assembly secured to the door. The hinge assembly includes a hinge pin extending along the vertical axis and a double slider-crank mechanism that is coupled to the hinge pin. As the door rotates about the vertical axis, the hinge assembly moves the vertical axis along an elliptical path.
    Type: Grant
    Filed: February 9, 2010
    Date of Patent: December 25, 2012
    Assignee: Whirlpool Corporation
    Inventor: Harish Prakash Kulkarni
  • Publication number: 20120274078
    Abstract: A hybrid concentrated solar combined cycle (CSCC) power plant based on solar reforming technology, method of generating electricity using the system and a solar reformer for use in the system are provided. The system enables integration of a concentrated solar power plant (CSP) and a combined cycle gas turbine (CCGT) power plant, resulting in a hybrid system that corrects known issues related to large-scale concentrated solar power generation. The solar reformer provides for the storage of solar energy in a reformate fuel during the reforming reaction and subsequent release through a gas turbine combustion reaction. Fuels directed into the gas turbine power plant can be alternated between hydrocarbon fluid and the reformate fuel dependent upon available solar thermal energy.
    Type: Application
    Filed: April 28, 2011
    Publication date: November 1, 2012
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Wei Wei, Lingzhi Zhang, Parag Prakash Kulkarni
  • Patent number: 8216323
    Abstract: A system comprises a mixed reforming zone configured to receive a first fuel steam mixture and an oxidant to produce a first reformate stream comprising hydrogen. The system further comprises at least one steam-reforming zone configured to receive the first reformate stream, a first portion of steam and a second fuel to produce a second reformate stream comprising hydrogen. The first reformate stream is mixed with the first portion of steam and second fuel before entering the steam reforming zone.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: July 10, 2012
    Inventors: Ke Liu, Parag Prakash Kulkarni, Gregg Anthony Deluga
  • Publication number: 20120023947
    Abstract: The present disclosure relates to the separation of CO2 from a gas mixture. The CO2 may be removed by cooling the gas mixture such that the CO2 can be removed as a solid or liquid. In various embodiments the gas mixture from which the CO2 is removed may include exhaust gases generated as part of a combustion process, such as may be employed in a power generation process, though the gas mixture may be any gas mixture that includes CO2.
    Type: Application
    Filed: July 30, 2010
    Publication date: February 2, 2012
    Applicant: General Electric Company
    Inventors: Parag Prakash Kulkarni, Douglas Carl Hofer, Narendra Digamber Joshi
  • Publication number: 20120023892
    Abstract: The present disclosure relates to the separation of CO2 from a gas mixture. The CO2 may be removed by cooling the gas mixture such that the CO2 can be removed as a solid or liquid. In various embodiments the gas mixture from which the CO2 is removed may include exhaust gases generated as part of a combustion process, such as may be employed in a power generation process, though the gas mixture may be any gas mixture that includes CO2.
    Type: Application
    Filed: July 30, 2010
    Publication date: February 2, 2012
    Applicant: General Electric Company
    Inventors: Parag Prakash Kulkarni, Douglas Carl Hofer, Narendra Digamber Joshi
  • Publication number: 20110313233
    Abstract: The present invention is in the field of treatment of diseased tissues, including cancerous tissues. In one embodiment, the present invention provides methods of identifying tissues that down-regulate cold shock proteins in response to environmental stresses, such as heat. The present invention also provides methods of treatment of diseased tissues comprising down-regulation of cold shock proteins, as well as environmentally stressing (e.g., heating) the tissues, in combination with one or more additional therapies.
    Type: Application
    Filed: June 17, 2010
    Publication date: December 22, 2011
    Applicant: THE JOHNS HOPKINS UNIVERSITY
    Inventors: Robert H. Getzenberg, Prakash Kulkarni, Yu Zeng
  • Publication number: 20110239623
    Abstract: A method of regenerating a particulate filter of an exhaust system of an engine system is disclosed. The method may include determining a condition indicative of an accumulation of hydrocarbons in the particulate filter, and monitoring the particulate filter to determine when to initiate regeneration of the particulate filter. The method may also include selecting a regeneration profile for regeneration of the particulate filter based on the determined condition, and regenerating the particulate filter in accordance with the regeneration profile.
    Type: Application
    Filed: April 6, 2010
    Publication date: October 6, 2011
    Inventors: Matthew Edward Leustek, Vadiraj Prakash Kulkarni, Sylvain Joseph Charbonnel
  • Patent number: 8012344
    Abstract: A fuel preparation system includes a fractionation unit for treating fuel containing vanadium. A gas turbine is connected to the fractionation unit to receive treated fuel. The gas turbine may deliver exhaust from the gas turbine to the fractionation unit. The fuel preparation system may include a burner for burning a heavy fuel fraction from the faction unit and for delivering exhaust from the burner to the fractionation unit. The fuel preparation unit may include a boiler to receive the heavy fuel fraction for combustion and for delivering steam to the fractionation unit.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: September 6, 2011
    Assignee: General Electric Company
    Inventors: Parag Prakash Kulkarni, Gregory Anthony DeLuga, Arnaldo Frydman, Gregory Ronald Gillette, Narendra Joshi, Ke Liu, Vladimir Zamansky
  • Publication number: 20110192839
    Abstract: A cooking appliance includes a housing forming a food handling compartment, a door positioned at the front of the housing that is configured to rotate about a vertical axis, and a hinge assembly secured to the door. The hinge assembly includes a hinge pin extending along the vertical axis and a double slider-crank mechanism that is coupled to the hinge pin. As the door rotates about the vertical axis, the hinge assembly moves the vertical axis along an elliptical path.
    Type: Application
    Filed: February 9, 2010
    Publication date: August 11, 2011
    Applicant: WHIRLPOOL CORPORATION
    Inventor: HARISH PRAKASH KULKARNI
  • Publication number: 20110072779
    Abstract: A system and method of reducing gas turbine nitric oxide emissions includes a first combustion stage configured to burn air vitiated with diluents to generate first combustion stage products. A second combustion stage is configured to burn the first combustion stage products in combination with enriched oxygen to generate second combustion stage products having a lower level of nitric oxide emissions than that achievable through combustion with vitiated air alone or through combustion staging alone.
    Type: Application
    Filed: September 30, 2009
    Publication date: March 31, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Ahmed Mostafa ELKady, Narendra Digamber Joshi, Parag Prakash Kulkarni, Christian Lee Vandervort, Krishnakumar Venkatesan
  • Publication number: 20110030384
    Abstract: A syngas cleanup section includes a water-gas shift reactor, a first operation unit and a second operation unit. The first operation unit includes a high permeance membrane with H2/CO2 selectivity in flow communication with the water-gas shift reactor to provide a H2-rich permeate stream and an H2-poor retentate stream. The second operation unit recovers H2 and CO from the retentate stream to produce a single, CO2-rich product stream, the entire content of which has a minimum pressure of at least about 10.0 bar. In one embodiment, the second operation unit includes a membrane with Knudsen selectivity for permeating H2, CO and CO2. In this embodiment, the permeate streams are combined to produce a H2 and CO-rich fuel stream used by a combined cycle power generation unit to produce electricity, and the retentate stream is sent to a catalytic oxidation unit to produce the CO2-rich product stream. In another embodiment, the second operation unit is the catalytic oxidation unit.
    Type: Application
    Filed: August 10, 2009
    Publication date: February 10, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Anthony Yu-Chung Ku, Harish Radhakrishna Acharya, Parag Prakash Kulkarni, Scott Michael Miller, William Cook Livingood, III
  • Publication number: 20110023445
    Abstract: A fuel preparation system includes a fractionation unit for treating fuel containing vanadium. A gas turbine is connected to the fractionation unit to receive treated fuel. The gas turbine may deliver exhaust from the gas turbine to the fractionation unit. The fuel preparation system may include a burner for burning a heavy fuel fraction from the faction unit and for delivering exhaust from the burner to the fractionation unit. The fuel preparation unit may include a boiler to receive the heavy fuel fraction for combustion and for delivering steam to the fractionation unit.
    Type: Application
    Filed: October 12, 2010
    Publication date: February 3, 2011
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Parag Prakash Kulkarni, Gregg Anthony DeLuga, Arnaldo Frydman, Gregory Ronald Gillette, Narendra Joshi, Ke Liu, Vladimir Zamansky
  • Patent number: 7833409
    Abstract: A method for treating fuel containing vanadium including extracting vanadium from the fuel with an adsorption material and fractionating the fuel into a light oil fraction and a heavy fuel fraction. The light fuel fraction has a reduced amount of vanadium. Systems for fuel preparation are also provided.
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: November 16, 2010
    Assignee: General Electric Company
    Inventors: Parag Prakash Kulkarni, Gregg Anthony Deluga, Arnaldo Frydman, Gregory Ronald Gillette, Narendra Joshi, Ke Liu, Vladimir Zamansky
  • Patent number: 7799733
    Abstract: The present invention provides a process for making activated carbon having BET surface area up to 2000 m2/g with pore diameter in the range 17-21 ? suitable for fabricating fuel cell and ultracapacitor electrode from coconut shell by treating carbon granules obtained from coconut shells with chemical activating agents like zinc chloride or potassium hydroxide at the room temperature range 500-800° C. in a dynamic flow of gases like N2 or CO2 for 6-24 h followed by a specific cooling pattern to room temperature. Use of such activated carbon enables the fabrication of high performance ultracapacitor electrodes in H2SO4 as exemplified by capacitance values like 180 F/g without the use of any normal metal additives such as RuO2 or IrO2.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: September 21, 2010
    Assignee: Council of Scientific and Industrial Research
    Inventors: Deepali Dattatray Wagh, Girish Vilas Arabale, Mahesh Prakash Kulkarni, Imtiaz Sirajuddin Mulla, Vijayamohanan Kunjukrishanapillai, Subhash Pundalik Vernekar, Ratnesh Kumar Jha, Nalini Edgar Jacob