Patents by Inventor Eli Gal

Eli Gal 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: 10850230
    Abstract: Processes and systems for producing potassium sulfate as a byproduct of a desulfurization process. Sulfur dioxide is absorbed from a flue gas using an ammonia-containing solution to produce an ammonium sulfate solution that contains dissolved ammonium sulfate. At least a first portion of the ammonium sulfate solution is heated before dissolving potassium chloride therein to form a slurry that contains potassium sulfate crystals and an ammonium chloride solution. The slurry is then cooled to precipitate additional potassium sulfate crystals, after which the potassium sulfate crystals are removed to yield a residual ammonium chloride solution that contains dissolved ammonium chloride and residual dissolved potassium sulfate. Ammonia is then absorbed into the residual ammonium chloride solution to further precipitate potassium sulfate crystals, which are removed to yield a residual ammonium chloride solution that is substantially free of dissolved potassium sulfate.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: December 1, 2020
    Assignee: Marsulex Environmental Technologies Corporation
    Inventor: Eli Gal
  • Patent number: 10246330
    Abstract: A process and system for hydrogen sulfide capture from gas streams employing an absorber vessel in which the gas stream containing hydrogen sulfide is contacted with an absorbent solution to remove the hydrogen sulfide from the gas stream. The process and system may further employ an oxidation vessel in which sulfides and/or bisulfides in the absorbent solution are oxidized to produce a thiosulfate and/or sulfate, yielding a solution that can be used as fertilizer or other applications.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: April 2, 2019
    Assignee: Marsulex Environmental Technologies Corporation
    Inventors: Michael Lyn Mengel, Amy Patrice Evans, Eli Gal, Paul Murray Leicht
  • Publication number: 20180353899
    Abstract: Processes and systems for producing potassium sulfate as a byproduct of a desulfurization process. Sulfur dioxide is absorbed from a flue gas using an ammonia-containing solution to produce an ammonium sulfate solution that contains dissolved ammonium sulfate. At least a first portion of the ammonium sulfate solution is heated before dissolving potassium chloride therein to form a slurry that contains potassium sulfate crystals and an ammonium chloride solution. The slurry is then cooled to precipitate additional potassium sulfate crystals, after which the potassium sulfate crystals are removed to yield a residual ammonium chloride solution that contains dissolved ammonium chloride and residual dissolved potassium sulfate. Ammonia is then absorbed into the residual ammonium chloride solution to further precipitate potassium sulfate crystals, which are removed to yield a residual ammonium chloride solution that is substantially free of dissolved potassium sulfate.
    Type: Application
    Filed: July 30, 2018
    Publication date: December 13, 2018
    Inventor: Eli Gal
  • Publication number: 20180297845
    Abstract: A process and system for hydrogen sulfide capture from gas streams employing an absorber vessel in which the gas stream containing hydrogen sulfide is contacted with an absorbent solution to remove the hydrogen sulfide from the gas stream. The process and system may further employ an oxidation vessel in which sulfides and/or bisulfides in the absorbent solution are oxidized to produce a thiosulfate and/or sulfate, yielding a solution that can be used as fertilizer or other applications.
    Type: Application
    Filed: April 13, 2017
    Publication date: October 18, 2018
    Inventors: Michael Lyn Mengel, Amy Patrice Evans, Eli Gal, Paul Murray Leicht
  • Patent number: 10046268
    Abstract: Flue gas desulfurization processes and systems that utilize ammonia as a reactant, and in which any hydrogen sulfide and/or mercaptans within the ammonia are separated during the desulfurization process so as to prevent their release into the atmosphere. The process and system entail absorbing acidic gases from a flue gas with a scrubbing media containing ammonium sulfate to produce a stream of scrubbed flue gas, collecting the scrubbing media containing the absorbed acidic gases, injecting into the collected scrubbing media a source of ammonia that is laden with hydrogen sulfide and/or mercaptans so that the injected ammonia is absorbed into and reacted with the collected scrubbing media, stripping the hydrogen sulfide and/or mercaptans from the collected scrubbing media by causing the hydrogen sulfide and/or mercaptans to exit the collected scrubbing media as stripped gases, and collecting the stripped gases without allowing the stripped gases to enter the stream of scrubbed flue gas.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: August 14, 2018
    Assignee: Marsulex Environmental Technologies Corporation
    Inventor: Eli Gal
  • Patent number: 10046272
    Abstract: Processes and systems for producing potassium sulfate as a byproduct of a desulfurization process. Sulfur dioxide is absorbed from a flue gas using an ammonia-containing solution to produce an ammonium sulfate solution that contains dissolved ammonium sulfate. At least a first portion of the ammonium sulfate solution is heated before dissolving potassium chloride therein to form a slurry that contains potassium sulfate crystals and an ammonium chloride solution. The slurry is then cooled to precipitate additional potassium sulfate crystals, after which the potassium sulfate crystals are removed to yield a residual ammonium chloride solution that contains dissolved ammonium chloride and residual dissolved potassium sulfate. Ammonia is then absorbed into the residual ammonium chloride solution to further precipitate potassium sulfate crystals, which are removed to yield a residual ammonium chloride solution that is substantially free of dissolved potassium sulfate.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: August 14, 2018
    Assignee: Marsulex Environmental Technologies, Corp.
    Inventor: Eli Gal
  • Publication number: 20180221842
    Abstract: The present invention relates to a multi-stage, single reactor and system for making methanol for synthesis gas (syngas). In particular, the reactor contains a shell and tube reactor that is divided at its top and bottom heads into a plurality vertical, isolated compartments. The associated compartments and tubes form a stage of the reactor. The raw syngas is fed to the first stage, and unreacted syngas from the first stage is fed to the second stage subsequent stages. Between each stage, the product, methanol and water, is removed from the reaction mixture before sending the unreacted syngas to the subsequent stage. The reactor allows for high conversion of synthesis gas to methanol in a once-through process, without requiring recycling of unreacted synthesis gas.
    Type: Application
    Filed: August 9, 2016
    Publication date: August 9, 2018
    Inventors: Eli GAL, Robert M. KOROS, Benjamin MOSKOWITZ, Arnold KELLER
  • Publication number: 20180214837
    Abstract: The present invention relates a two-stage reactor for exothermal, reversible reactions. In particular, the reactor contains a first semi-isothermal stage followed by a second cooling stage. The reactor allows for high conversion of products in an exothermal, reversible reaction.
    Type: Application
    Filed: July 29, 2016
    Publication date: August 2, 2018
    Inventors: Eli GAL, Robert M. KOROS, Benjamin MOSKOWITZ
  • Publication number: 20170113183
    Abstract: Processes and systems for producing potassium sulfate as a byproduct of a desulfurization process. Sulfur dioxide is absorbed from a flue gas using an ammonia-containing solution to produce an ammonium sulfate solution that contains dissolved ammonium sulfate. At least a first portion of the ammonium sulfate solution is heated before dissolving potassium chloride therein to form a slurry that contains potassium sulfate crystals and an ammonium chloride solution. The slurry is then cooled to precipitate additional potassium sulfate crystals, after which the potassium sulfate crystals are removed to yield a residual ammonium chloride solution that contains dissolved ammonium chloride and residual dissolved potassium sulfate. Ammonia is then absorbed into the residual ammonium chloride solution to further precipitate potassium sulfate crystals, which are removed to yield a residual ammonium chloride solution that is substantially free of dissolved potassium sulfate.
    Type: Application
    Filed: October 27, 2015
    Publication date: April 27, 2017
    Inventor: Eli Gal
  • Patent number: 9463416
    Abstract: Low-cost and energy-efficient CO2 and H2S capture is provided obtaining greater than 99.9% capture efficiency from pressurized gas. The acid species are captured in an ammonia solution, which is then regenerated by stripping the absorbed species. The solution can capture as much as 330 grams of CO2 and H2S per 1000 gram of water and when regenerated it produces pure pressurized acid gas containing more than 99.7% CO2 and H2S. The absorption of the acid species is accomplished in two absorbers in-series, each having multiple stages. More than 95% of the acid species are captured in the first absorber and the balance is captured in the second absorber to below 10 ppm concentration in the outlet gas. The two absorbers operate at temperatures ranging from 20-70 degrees Celsius. The two absorbers and the main stripper of the alkaline solution operate at similar pressures ranging from 5-200 bara.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: October 11, 2016
    Assignees: EIG, Inc., SRI International
    Inventors: Eli Gal, Gopala N. Krishnan, Indira S. Jayaweera
  • Publication number: 20160220948
    Abstract: Flue gas desulfurization processes and systems that utilize ammonia as a reactant, and in which any hydrogen sulfide and/or mercaptans within the ammonia are separated during the desulfurization process so as to prevent their release into the atmosphere. The process and system entail absorbing acidic gases from a flue gas with a scrubbing media containing ammonium sulfate to produce a stream of scrubbed flue gas, collecting the scrubbing media containing the absorbed acidic gases, injecting into the collected scrubbing media a source of ammonia that is laden with hydrogen sulfide and/or mercaptans so that the injected ammonia is absorbed into and reacted with the collected scrubbing media, stripping the hydrogen sulfide and/or mercaptans from the collected scrubbing media by causing the hydrogen sulfide and/or mercaptans to exit the collected scrubbing media as stripped gases, and collecting the stripped gases without allowing the stripped gases to enter the stream of scrubbed flue gas.
    Type: Application
    Filed: March 29, 2016
    Publication date: August 4, 2016
    Inventor: Eli Gal
  • Patent number: 9327234
    Abstract: A flue gas desulfurization process and system that utilize ammonia as a reactant, and in which any hydrogen sulfide and/or mercaptans within the ammonia are separated during the desulfurization process so as to prevent their release into the atmosphere. The process and system entail absorbing acidic gases from a flue gas with a scrubbing media containing ammonium sulfate to produce a stream of scrubbed flue gas, collecting the scrubbing media containing the absorbed acidic gases, injecting into the collected scrubbing media a source of ammonia that is laden with hydrogen sulfide and/or mercaptans so that the injected ammonia is absorbed into and reacted with the collected scrubbing media, stripping the hydrogen sulfide and/or mercaptans from the collected scrubbing media by causing the hydrogen sulfide and/or mercaptans to exit the collected scrubbing media as stripped gases, and collecting the stripped gases without allowing the stripped gases to enter the stream of scrubbed flue gas.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: May 3, 2016
    Assignee: Marsulex Environmental Technologies Corporation
    Inventor: Eli Gal
  • Publication number: 20140234176
    Abstract: Low-cost and energy-efficient C02 and H2S capture is provided obtaining greater than 99.9% capture efficiency from pressurized gas. The acid species are captured in an ammonia solution, which is then regenerated by stripping the absorbed species. The solution can capture as much as 330 grams of C02 and H2S per 1000 gram of water and when regenerated it produces pure pressurized acid gas containing more than 99.7% C02 and H2S. The absorption of the acid species is accomplished in two absorbers in-series, each having multiple stages. More than 95% of the acid species are captured in the first absorber and the balance is captured in the second absorber to below 10 ppm concentration in the outlet gas. The two absorbers operate at temperatures ranging from 20-70 degrees Celsius. The two absorbers and the main stripper of the alkaline solution operate at similar pressures ranging from 5-200 bara.
    Type: Application
    Filed: September 26, 2012
    Publication date: August 21, 2014
    Inventors: Eli Gal, Gopala N. Krishnan, Indira S. Jayaweera
  • Patent number: 8758493
    Abstract: A method and system for reducing an amount of ammonia in a flue gas stream. The system 100 includes: a wash vessel 180 for receiving an ammonia-containing flue gas stream 170, the wash vessel 180 including a first absorption stage 181a and a second absorption stage 181b, each of the first absorption stage 181a and the second absorption stage 181b having a mass transfer device 184; and a liquid 187 introduced to the wash vessel 180, the liquid 187 for absorbing ammonia from the ammonia-containing flue gas stream 170 thereby forming an ammonia-rich liquid 192 and a reduced ammonia containing flue gas stream 190 exiting the wash vessel 180.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: June 24, 2014
    Assignee: ALSTOM Technology Ltd
    Inventors: Eli Gal, Indira Jayaweera
  • Patent number: 8353321
    Abstract: A system and method for short-range ultrasonic detecting of a target is proposed herein to be used for example in a liquid-dispensing system such as those provided in home refrigerators. The system comprises a sensor assembly including a transmitter and a receiver positioned side by side so as to yield respective transmitting and receiving beams which overlap to define an asymmetrical shaped detection area, a controller coupled to both the transmitter and receiver to activate the transmitter and for receiving echoes indicative of the target from the receiver and to the dispensing system for opening a valve of the dispensing system when a target is detected. Noises and false alarm rate minimization methods are implemented, including variable relevance zones and requiring a void of signal before excitation.
    Type: Grant
    Filed: April 6, 2007
    Date of Patent: January 15, 2013
    Assignee: Sensotech Inc.
    Inventors: Uri Agam, Eli Gal, Pino Marcovecchio
  • Patent number: 8308849
    Abstract: Ultra cleaning of combustion gas to near zero concentration of residual contaminants followed by the capture of CO2 is provided. The high removal efficiency of residual contaminants is accomplished by direct contact cooling and scrubbing of the gas with cold water. The temperature of the combustion gas is reduced to 0-20 degrees Celsius to achieve maximum condensation and gas cleaning effect. The CO2 is captured from the cooled and clean flue gas in a CO2 absorber utilizing an ammoniated solution or slurry in the NH3—CO2—H2O system. The absorber operates at 0-20 degrees Celsius. Regeneration is accomplished by elevating the pressure and temperature of the CO2-rich solution from the absorber. The CO2 vapor pressure is high and a pressurized CO2 stream, with low concentration of NH3 and water vapor is generated. The high pressure CO2 stream is cooled and washed to recover the ammonia and moisture from the gas.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: November 13, 2012
    Assignee: ALSTOM Technology Ltd
    Inventor: Eli Gal
  • Patent number: 8202913
    Abstract: The present invention relates to processes and continuous processes for preparing gaseous products, and in particular, methane via the catalytic gasification of carbonaceous feedstocks in the presence of steam. In one aspect of the invention, the processes comprise at least partially combusting a first carbonaceous feedstock with an oxygen-rich gas stream, a recycle steam stream, and an aqueous make-up stream in an oxygen-blown gasifier, under suitable temperature and pressure, to generate a first gas stream comprising hydrogen, carbon monoxide and superheated steam; and reacting a second carbonaceous feedstock and the first gas stream in a catalytic gasifier in the presence of a gasification catalyst under suitable temperature and pressure to form a second gas stream comprising a plurality of gaseous products comprising methane, carbon dioxide, hydrogen, carbon monoxide and hydrogen sulfide.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: June 19, 2012
    Assignee: Greatpoint Energy, Inc.
    Inventors: Earl T. Robinson, Vincent G. Reiling, Pattabhi K. Raman, Eli Gal
  • Patent number: 8182577
    Abstract: An ammonia based CO2 capture system and method is provided in which multiple absorption stages are provided. Each absorption stage delivers an ionic solution at a predetermined temperature and contacts it with a flue gas stream.
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: May 22, 2012
    Assignee: ALSTOM Technology Ltd
    Inventors: Eli Gal, Otto M. Bade, Dennis J. Laslo, Frederic Z. Kozak, David J. Muraskin, Jurgen Dopatka
  • Patent number: 8168149
    Abstract: A method and system for CO2 capture from flue gas uses an absorber vessel in which a flue gas stream containing CO2 is contacted with an ammoniated solution to remove CO2 from the flue gas, and a regenerator vessel in which CO2 is released from the ammoniated solution. Parasitic energy consumption of the system can be reduced by adding to the ammoniated solution a promoter effective to enhance the formation of ammonium bicarbonate within the ammoniated solution. The amount of ammoniated solution recycled from the regenerator vessel to the absorber vessel is less than that which would be required using the ammoniated solution without the promoter for removal of the same amount of CO2 from the flue gas.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: May 1, 2012
    Assignee: ALSTOM Technology Ltd
    Inventors: Eli Gal, Otto Morten Bade, Indira Jayaweera, Gopala Krishnan
  • Publication number: 20110070136
    Abstract: A method and system for CO2 capture from flue gas uses an absorber vessel in which a flue gas stream containing CO2 is contacted with an ammoniated solution to remove CO2 from the flue gas, and a regenerator vessel in which CO2 is released from the ammoniated solution. Parasitic energy consumption of the system can be reduced by adding to the ammoniated solution a promoter effective to enhance the formation of ammonium bicarbonate within the ammoniated solution. The amount of ammoniated solution recycled from the regenerator vessel to the absorber vessel is less than that which would be required using the ammoniated solution without the promoter for removal of the same amount of CO2 from the flue gas.
    Type: Application
    Filed: December 2, 2010
    Publication date: March 24, 2011
    Applicant: ALSTOM Technology Ltd
    Inventors: Eli Gal, Otto Morten Bade, Indira Jayaweera, Gopala Krishnan