Patents by Inventor Vladimir Zamansky

Vladimir Zamansky 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: 9365784
    Abstract: A coal gasifier is retrofitted to achieve multiple advantages such as reduced oxygen consumption, reduced CO2 and NOx emissions, better H:C ratio, better carbon conversion etc. This is achieved by dividing the coal into at least two zones and modifying the gasifier and operating it as described. The coal is injected into a first zone, configured to devolatilize a substantial portion of the injected coal to produce coal char and volatiles. The operation is tuned to substantially consume the oxidant injected in the first zone. A low-calorific-value, high oxidant feedstock is injected in second zone of the gasifier. The devolatilization of the low-calorific-value, high oxidant content feedstock provides the oxygen containing compounds which gasify at least a portion of the coal char generated in the first zone.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: June 14, 2016
    Assignee: General Electric Company
    Inventors: Vladimir Zamansky, Vitali Victor Lissianski, Boris Nikolaevich Eiteneer, Wei Wei, Ravichandra Srinivasa Jupudi, Ramanathan Subramanian
  • Patent number: 9074152
    Abstract: A plasma-assisted waste gasification system and process for converting waste stream reaction residues into a clean synthesis gas (syngas) is disclosed. The feedstock is fed into a reactor roughly one-third from the bottom through the use of a feed mechanism. The reactor has three zones; a bottom zone where melting occurs, a middle zone where gasification takes place, and a top zone with integrated plasma torches to control the temperature and polish the syngas. The residence times in the three zones are selected to optimize the syngas composition and melted products. The syngas leaves the reactor and is partially quenched with relatively cooler synthesis gas. The partially quenched syngas is further cooled to recover heat for steam generation and/or preheating the waste stream to the reactor. The cold syngas is then processed to remove pollutants. The clean synthesis gas is combusted in power generation equipment to generate electricity, or converted to other fuels by chemical processes.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: July 7, 2015
    Assignee: General Electric Company
    Inventors: Matthew Christian Nielsen, Richard Anthony DePuy, Aditya Kumar, James Patrick Francis Lyons, Vitali Lissianski, Ruijie Shi, Surinder Prabhjot Singh, Kenneth Brakeley Welles, Vladimir Zamansky
  • Publication number: 20140059930
    Abstract: A coal gasifier is retrofitted to achieve multiple advantages such as reduced oxygen consumption, reduced CO2 and NOx emissions, better H:C ratio, better carbon conversion etc. This is achieved by dividing the coal into at least two zones and modifying the gasifier and operating it as described. The coal is injected into a first zone, configured to devolatilize a substantial portion of the injected coal to produce coal char and volatiles. The operation is tuned to substantially consume the oxidant injected in the first zone. A low-calorific-value, high oxidant feedstock is injected in second zone of the gasifier. The devolatilization of the low-calorific-value, high oxidant content feedstock provides the oxygen containing compounds which gasify at least a portion of the coal char generated in the first zone.
    Type: Application
    Filed: October 17, 2013
    Publication date: March 6, 2014
    Applicant: General Electric Company
    Inventors: Vladimir Zamansky, Vitali Victor Lissianski, Boris Nikolaevich Eiteneer, Wei Wei, Ravichandra Srinivasa Jupudi, Ramanathan Subramanian
  • Patent number: 8617271
    Abstract: A coal gasifier is retrofitted to achieve multiple advantages such as reduced oxygen consumption, reduced CO2 and NOx emissions, better H:C ratio, better carbon conversion etc. This is achieved by dividing the coal into at least two zones and modifying the gasifier and operating it as described. The coal is injected into a first zone, configured to devolatilize a substantial portion of the injected coal to produce coal char and volatiles. The operation is tuned to substantially consume the oxidant injected in the first zone. A low-calorific-value, high oxidant feedstock is injected in second zone of the gasifier. The devolatilization of the low-calorific-value, high oxidant content feedstock provides the oxygen containing compounds which gasify at least a portion of the coal char generated in the first zone.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: December 31, 2013
    Assignee: General Electric Company
    Inventors: Vladimir Zamansky, Vitali Lissianski, Boris Nikolaevich Eiteneer, Wei Wei, Ravichandra Srinivasa Jupudi, Ramanathan Subramanian
  • Patent number: 8574329
    Abstract: A method of operating a gasifier is provided that envisions dividing the gasifier into multiple zones. A high-calorific-value feedstock with an oxidant is injected in the first zone. The gasifier is operated to substantially consume the oxidant within the first gasification zone. The method of operating the gasifier further includes injecting a low-calorific-value, high-oxygen-content feedstock in a second gasification zone. The low-calorific-value, high-oxygen-content feedstock is devolatilized and gasified in second zone. A method of operation provides for a synergistic co-gasification of the high-calorific-value feedstock and the low-calorific-value, high oxidant content feedstock. The method provides for specific control actions that enable operation of multi-fuel, multizone gasifier.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: November 5, 2013
    Assignee: General Electric Company
    Inventors: Vladimir Zamansky, Vitali Lissianski, Boris Nikolaevich Eiteneer, Wei Wei, Ravichandra Srinivasa Jupudi, Ramanathan Subramanian
  • 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
  • Patent number: 7888540
    Abstract: A method of producing a fuel composition from a bio-oil feedstock is provided, wherein the bio-oil feedstock is subjected to a step of oil extraction to produce a bio-oil and deoiled residue. At least a portion of the deoiled residue is gasified to produce a hydrogen-containing gas. The bio-oil is subjected to an upgrading process to ultimately produce a fuel composition. At least a part of the hydrogen-containing gas produced in the gasification of deoiled residue is used in the upgrading process of producing a fuel composition. The upgrading process, which can involve hydro-treating, hydroisomerization and at least one separation step, produces light hydrocarbons in addition to the product fuel composition. The light hydrocarbons can be used in the gasification operation, e.g., to reduce tar formation.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: February 15, 2011
    Assignee: General Electric Company
    Inventors: Gregg Anthony Deluga, Vladimir Zamansky, Ke Liu, Tiffany Elizabeth Pinard Westendorf
  • 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: 7879295
    Abstract: Disclosed herein is a system for reducing NOx emissions comprising a fuel tank in fluid communication with a fuel converter, wherein the fuel converter is located down stream of the fuel tank and wherein the fuel converter comprises a catalyst composition that is operative to continuously convert heavy hydrocarbon molecules having 9 or more carbon atoms per molecule into light hydrocarbon molecules having 8 or less carbon atoms per molecule; a selective catalytic reduction catalyst reactor in fluid communication with the fuel converter and located downstream of the fuel converter; and an engine in fluid communication with the fuel tank and the selective catalytic reduction catalyst reactor, wherein the engine is located downstream of the fuel tank and upstream of the selective catalytic reduction catalyst reactor.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: February 1, 2011
    Assignee: General Electric Company
    Inventors: Ke Liu, Arnaldo Frydman, Vladimir Zamansky, Teresa Grocela Rocha, Jonathan Lloyd Male, Harish Radhakrishna Acharya, Roy James Primus
  • 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
  • Publication number: 20100180771
    Abstract: A system includes an adsorber having a fluidized bed of a plurality of adsorption materials. The adsorber is configured to receive the gaseous fuel stream including the plurality of pollutants and adsorb the said plurality of pollutants in a single unit from the gaseous fuel stream to generate a clean gas stream substantially free of the pollutants. Different adsorption materials are designed to remove different pollutants over a similar temperature range. The pollutants include at least one of sulfur compounds, chlorine, ammonia, mercury, arsenic, selenium, cadmium, or combinations thereof.
    Type: Application
    Filed: January 22, 2009
    Publication date: July 22, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Ke Liu, Vladimir Zamansky
  • Publication number: 20100146858
    Abstract: A coal gasifier is retrofitted to achieve multiple advantages such as reduced oxygen consumption, reduced CO2 and NOx emissions, better H:C ratio, better carbon conversion etc. This is achieved by dividing the coal into at least two zones and modifying the gasifier and operating it as described. The coal is injected into a first zone, configured to devolatilize a substantial portion of the injected coal to produce coal char and volatiles. The operation is tuned to substantially consume the oxidant injected in the first zone. A low-calorific-value, high oxidant feedstock is injected in second zone of the gasifier. The devolatilization of the low-calorific-value, high oxidant content feedstock provides the oxygen containing compounds which gasify at least a portion of the coal char generated in the first zone.
    Type: Application
    Filed: December 18, 2008
    Publication date: June 17, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Vladimir Zamansky, Vitali Lissianski, Boris Nikolaevich Eiteneer, Wei Wei, Ravichandra Srinivasa Jupudi, Ramanathan Subramanian
  • Publication number: 20100146856
    Abstract: A gasifier is provided gasify multiple fuels. The gasifier is configured to include a first gasification zone for gasifying a high-calorific-value feedstock with an oxidant. The gasifier is configured to substantially consume the oxidant within the first gasification zone. The gasifier further includes a second gasification zone for gasifying a low-calorific-value, high-oxygen-content feedstock. The high-calorific-value fuel may be coal and the low-calorific-value fuel may be biomass.
    Type: Application
    Filed: December 18, 2008
    Publication date: June 17, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Vladimir Zamansky, Vitali Lissianski, Boris Nikolaevich Eiteneer, Wei Wei, Ravichandra Srinivasa Jupudi, Ramanathan Subramanian
  • Publication number: 20100146857
    Abstract: A method of operating a gasifier is provided that envisions dividing the gasifier into multiple zones. A high-calorific-value feedstock with an oxidant is injected in the first zone. The gasifier is operated to substantially consume the oxidant within the first gasification zone. The method of operating the gasifier further includes injecting a low-calorific-value, high-oxygen-content feedstock in a second gasification zone. The low-calorific-value, high-oxygen-content feedstock is devolatilized and gasified in second zone. A method of operation provides for a synergistic co-gasification of the high-calorific-value feedstock and the low-calorific-value, high oxidant content feedstock. The method provides for specific control actions that enable operation of multi-fuel, multizone gasifier.
    Type: Application
    Filed: December 18, 2008
    Publication date: June 17, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Vladimir Zamansky, Vitali Lissianski, Boris Nikolaevich Eiteneer, Wei Wei, Ravichandra Srinivasa Jupudi, Ramanathan Subramanian
  • Publication number: 20100132633
    Abstract: In one aspect, the present invention provides a biomass gasifier comprising a reactor. The reactor includes (i) an inlet for biomass, (ii) an inlet for an oxygen-containing gas, (iii) an inlet for steam, (iv) an outlet for reactor product gas, (v) an outlet for ash, (vi) a biogas exit conduit coupled to the outlet for the reactor product gas and (vii) an inlet for a secondary oxygen source. The biogas exit conduit includes a catalytic partial oxidation unit, the catalytic partial oxidation unit is substantially restricting the biogas exit conduit. A system and method for biomass gasification is also provided.
    Type: Application
    Filed: June 29, 2009
    Publication date: June 3, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Ke Liu, Vladimir Zamansky, Lingzhi Zhang
  • Patent number: 7721532
    Abstract: The disclosed embodiments relate to a method and system for regeneration of a catalyst. The system includes an engine that creates an exhaust stream and a fuel supply adapted to supply a fuel stream to the engine. A reactor includes a catalyst and is in fluid communication with the engine to receive the exhaust stream. A sensor senses a system parameter and produces a signal corresponding to the system parameter. A controller receives the signal and directs at least a portion of the exhaust stream or at least a portion of the fuel stream to the catalyst to control a regeneration operation based on a value of the system parameter sensed by the sensor.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: May 25, 2010
    Assignee: General Electric Company
    Inventors: Ke Liu, Jonathan Lloyd Male, Arnaldo Frydman, Roy James Primus, Vladimir Zamansky, Teresa Grocela Rocha
  • Publication number: 20090259082
    Abstract: A method of producing a fuel composition from a bio-oil feedstock is provided, wherein the bio-oil feedstock is subjected to a step of oil extraction to produce a bio-oil and deoiled residue. At least a portion of the deoiled residue is gasified to produce a hydrogen-containing gas. The bio-oil is subjected to an upgrading process to ultimately produce a fuel composition. At least a part of the hydrogen-containing gas produced in the gasification of deoiled residue is used in the upgrading process of producing a fuel composition. The upgrading process, which can involve hydro-treating, hydroisomerization and at least one separation step, produces light hydrocarbons in addition to the product fuel composition. The light hydrocarbons can be used in the gasification operation, e.g., to reduce tar formation.
    Type: Application
    Filed: April 11, 2008
    Publication date: October 15, 2009
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Gregg Anthony Deluga, Vladimir Zamansky, Ke Liu, Tiffany Elizabeth Pinard Westendorf
  • Patent number: 7569085
    Abstract: A system for production of hydrogen comprises at least one steam reforming zone configured to receive a first fuel and steam to produce a first reformate gas stream comprising hydrogen using a steam reforming process. The system further comprises a mixed reforming zone configured to receive an oxidant to produce a second reformate gas stream comprising hydrogen, wherein the first reformate gas stream is sent to the mixed reforming zone to complete the reforming process.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: August 4, 2009
    Assignee: General Electric Company
    Inventors: Ravi Vipperia Kumar, Vladimir Zamansky, Boris Nikolaevich Eiteneer, Shawn David Barge, Parag Prakash Kulkarni, Ke Liu
  • Publication number: 20090158663
    Abstract: A method for the gasification of biomass, wherein the biomass feedstock is combined with a light hydrocarbon composition to form a slurry; followed by feeding the slurry to a gasifier to produce a fuel gas. In another embodiment, a method for the gasification of biomass is described. The method includes the steps of combining a biomass feedstock with water to form a slurry; feeding the slurry to a gasifier to produce a fuel gas; and injecting a light hydrocarbon into the gasifier, to generate gasification temperatures greater than about 900° C., by partial or complete combustion of the light hydrocarbon. In some other embodiments, the biomass gasifier product gas is coupled to a reformer, wherein a light hydrocarbon is injected to generate high temperatures.
    Type: Application
    Filed: December 21, 2007
    Publication date: June 25, 2009
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Gregg Anthony Deluga, Vladimir Zamansky, Parag Prakash Kulkarni
  • Patent number: 7540893
    Abstract: A system for producing synthesis gas includes a regeneration zone. The regeneration zone includes a first fluidized bed configured to receive an oxidant for producing a regenerated oxygen transfer material. The system further includes a mixed reforming zone comprising a second fluidized bed configured to receive a first fuel and the regenerated oxygen transfer material to produce a first reformate stream and a steam reforming zone comprising a third fluidized bed configured to receive the first reformate stream, a second fuel and steam to produce the synthesis gas. The regeneration zone, mixed reforming zone and steam-reforming zone are in fluid communication with each other.
    Type: Grant
    Filed: December 6, 2005
    Date of Patent: June 2, 2009
    Assignee: General Electric Company
    Inventors: Ke Liu, Vladimir Zamansky