Patents by Inventor Bhadra S. Grover

Bhadra S. Grover 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: 9272940
    Abstract: An ion transport membrane, a heat exchanger, and a recuperator are integrated with a float glass manufacturing process. Only feeds of fuel and air are necessary for producing hot oxygen for a melting furnace and a nitrogen-enriched stream to a float bath. The oxygen and nitrogen are produced on-site without requiring cryogenic distillation.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: March 1, 2016
    Assignee: L'Air Liquid Sociétë Anonyme Pour L'Ëtude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Wei Huang, Youssef Joumani, Remi Pierre Tsiava, Bhadra S. Grover
  • Patent number: 9186614
    Abstract: An apparatus for producing hydrogen from an off-gas originating from a gas to liquid (GTL) process is provided. The apparatus includes a cryogenic distillation column, a first CO shift reactor, a second CO shift reactor, an SMR, and a first and second PSA. The cryogenic distillation column is configured to receive an off-gas and separate it into a light ends and a heavy ends. The first CO shift reactor is configured to receive the light ends and, in the presence of steam, produce additional hydrogen and carbon monoxide. The SMR is configured to receive the heavy ends and convert hydrocarbons within the heavy ends to hydrogen and CO, with the resulting stream then being treated in the second CO shift reactor to produce additional hydrogen and CO2. The hydrogen is then captured using the first and second PSAs.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: November 17, 2015
    Assignee: L'Air Liquide Société Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventor: Bhadra S. Grover
  • Patent number: 9114352
    Abstract: A hydrogen purification process is provided. This process includes separating hydrogen from a hydrogen containing stream in at least two sequential palladium membrane purification zones, wherein each purification zone has a permeate side, wherein the permeate side pressure of purification zones are not the same.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: August 25, 2015
    Assignee: L'Air Liquide Société Anonyme Pour LÉtude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Trapti Chaubey, Bhadra S. Grover, Pascal Tessier
  • Patent number: 9086015
    Abstract: An integrated oxy-combustion turboexpander process including producing an enriched carbon dioxide product stream, by combusting a compressed synthetic air stream, including an oxygen-enriched stream and a carbon dioxide recycle stream, with a fuel stream and expanding the combustion stream thereby producing the carbon dioxide recycle stream and an enriched carbon dioxide product stream; producing an essentially pure carbon dioxide product stream, by processing the enriched carbon dioxide product stream into a deoxo methane combustor.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: July 21, 2015
    Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
    Inventors: Craig LaForce, Bhadra S. Grover
  • Publication number: 20150183675
    Abstract: An ion transport membrane, a heat exchanger, and a recuperator are integrated with a float glass manufacturing process. Only feeds of fuel and air are necessary for producing hot oxygen for a melting furnace and a nitrogen-enriched stream to a float bath. The oxygen and nitrogen are produced on-site without requiring cryogenic distillation.
    Type: Application
    Filed: December 27, 2013
    Publication date: July 2, 2015
    Applicant: Air Liquide, Societe Anonyme pour Etude et Exploitation des Procedes Georges Claude
    Inventors: WEI HUANG, Youssef Joumani, Remi Pierre Tsiava, Bhadra S. Grover
  • Patent number: 9044704
    Abstract: The present invention is a method of integrating oxygen production with blast furnace operation. A heated air stream is introduced to an ion transfer membrane separator, producing a permeate and a retentate. The permeate and the motive stream are introduced into an ejector jet pump producing an oxygen enriched stream. The oxygen enriched stream is introduced into blast furnace. In another embodiment of the present invention, the permeate and a steam motive stream are introduced into an ejector jet pump. Heated air inlet stream is introduced into a cascading series of ion transfer membrane separators, producing a series of permeate streams and a series of retentate streams wherein each retentate stream acts as the input stream for the subsequent ion transfer membrane separator. Thereby producing a series of oxygen enriched streams which are combined and introduced into blast furnace.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: June 2, 2015
    Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
    Inventors: Bhadra S. Grover, Kenneth Kaiser, Michael Garry Keith Grant, Wei Huang
  • Patent number: 9010152
    Abstract: Ion transport membranes are integrated with a glass melting furnace and a float glass bath. Only feeds of air, steam and hydrocarbon are necessary for producing hot oxygen for the melting furnace and a mixture of nitrogen, carbon dioxide, and hydrogen for the float glass bath.
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: April 21, 2015
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Wei Huang, Youssef Joumani, Remi Pierre Tsiava, Bhadra S. Grover
  • Patent number: 8877155
    Abstract: A method for producing hydrogen from an off-gas originating from a gas to liquid (GTL) process is provided. The method includes separating the light ends from the hydrocarbons using a cryogenic distillation column and then processing the light ends and the hydrocarbons to produce additional hydrogen product. The light ends are introduced to a CO shift reactor in the presence of steam to convert CO to CO2 and hydrogen. The hydrocarbons are introduced to a steam methane reformer in the presence of steam to convert hydrocarbons to hydrogen and CO. The resulting stream is treated in a second CO shift reactor to produce additional hydrogen and CO2. The hydrogen is then captured using a pressure swing absorber.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: November 4, 2014
    Assignee: L'Air Liquide, Société Anonyme pour l'Étude et l'Éxploitation des Procédés Georges Claude
    Inventor: Bhadra S. Grover
  • Patent number: 8722010
    Abstract: A method for the coproduction of oxygen, hydrogen and nitrogen using an ion transport membrane is provided. This method includes separating a compressed, hot air stream in an ion transport membrane, thereby producing a product oxygen stream and a hot nitrogen rich stream; utilizing at least a portion of the hot nitrogen rich stream as a heat source for reforming a hydrocarbons stream, thereby producing a syngas stream and a warm product nitrogen stream; and separating the syngas stream into a product hydrogen stream and a carbon dioxide rich stream.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: May 13, 2014
    Assignee: L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventor: Bhadra S. Grover
  • Patent number: 8636922
    Abstract: The present invention provides a process for recovering high purity gaseous hydrogen and high purity gaseous carbon dioxide from a syngas stream by utilizing a hydrogen selective membrane unit and a primary water gas shift reactor in combination with a cryogenic purification unit, a hydrogen recovery unit and a secondary water gas shift reactor or by utilizing a hydrogen membrane/water gas shift reactor in combination with a cryogenic purification unit, a hydrogen recovery unit and a secondary water gas shift reactor. Each of these embodiments may further include a sulfur recovery unit.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: January 28, 2014
    Assignee: L'Air Liquide Societe Anonyme Pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Bhadra S. Grover, Paul Terrien
  • Publication number: 20130341839
    Abstract: The present invention is a method of integrating oxygen production with blast furnace operation. A heated air stream is introduced to an ion transfer membrane separator, producing a permeate and a retentate. The permeate and the motive stream are introduced into an ejector jet pump producing an oxygen enriched stream. The oxygen enriched stream is introduced into blast furnace. In another embodiment of the present invention, the permeate and a steam motive stream are introduced into an ejector jet pump. Heated air inlet stream is introduced into a cascading series of ion transfer membrane separators, producing a series of permeate streams and a series of retentate streams wherein each retentate stream acts as the input stream for the subsequent ion transfer membrane separator. Thereby producing a series of oxygen enriched streams which are combined and introduced into blast furnace.
    Type: Application
    Filed: June 21, 2012
    Publication date: December 26, 2013
    Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Bhadra S. Grover, Kenneth Kaiser, Michael Garry Keith Grant, Wei Huang
  • Publication number: 20130344450
    Abstract: A method for producing a syngas stream for use in a blast furnace, including providing a hot air stream to an ion transport membrane, thereby producing a hot nitrogen rich stream and a hot oxygen rich stream, providing a methane stream to the ion transport membrane, wherein the methane reacts with the hot oxygen rich stream thereby producing a syngas containing stream, introducing the syngas containing stream into a CO2 removal unit, thereby producing a carbon dioxide rich stream, and a hydrogen rich stream, and introducing the hydrogen rich stream into a blast furnace, thereby replacing at least a portion of the natural gas fuel required therein.
    Type: Application
    Filed: June 21, 2012
    Publication date: December 26, 2013
    Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Bhadra S. Grover, Michael Garry Keith Grant
  • Patent number: 8591769
    Abstract: The present invention is a method of reducing the carbon dioxide balance from a reformer furnace flue gas to the high pressure syngas exit water gas shift reaction unit. Introducing a heated gas mixture into at least one pre-reforming chamber. The heating being provided by indirect heat exchange with one or more of an SMR furnace flue gas or an SMR furnace syngas introducing the gas mixture into a standard H2 PSA unit, wherein the gas mixture is separated into a hydrogen enriched stream and a PSA tail gas stream; introducing the PSA tail gas stream into a CPU system, wherein the PSA tail gas stream is separated into a carbon dioxide enriched stream, a hydrogen rich stream, and a residual stream, and introducing the residual stream as fuel into the reformer furnace along with natural gas.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: November 26, 2013
    Assignees: Air Liquide Large Industries U.S. LP, L'Air Liquide Société Anonyme pour l'Étude et l'Exploitation de Procédés Georges Claude
    Inventors: Dennis Vauk, Bhadra S. Grover
  • Patent number: 8580153
    Abstract: The present invention is a method of minimizing the emissions of carbon dioxide from a reformer furnace flue gas to the high pressure syngas exit water gas shift reaction unit. Including heating a first gas mixture by indirect heat exchange with one or more of an SMR furnace flue gas or an SMR furnace syngas, further heating the pre-reformed mixture in a primary reformer, thereby generating a second gas mixture comprising hydrogen, carbon monoxide, carbon dioxide, and a flue gas. Introducing the gas mixture into a standard H2 PSA unit, wherein the gas is separated into a hydrogen enriched stream and a PSA tail gas stream, and introducing PSA feed or tail gas stream into a carbon dioxide removal system, wherein the flue gas is separated into a residual flue gas stream and a carbon dioxide enriched stream.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: November 12, 2013
    Assignees: Air Liquide Large Industries U.S. LP, L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Dennis A. Vauk, Bhadra S. Grover
  • Patent number: 8535638
    Abstract: The present invention provides a process for recovering hydrogen and carbon dioxide from a process stream of a process unit wherein the process stream contains at least carbon dioxide, hydrogen, and methane.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: September 17, 2013
    Assignees: Air Liquide Large Industries U.S., L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Paul Terrien, Trapti Chaubey, Purushottam V. Shanbhag, Bhadra S. Grover, Dennis A. Vauk, Arthur Darde
  • Publication number: 20130227961
    Abstract: An integrated oxy-combustion turboexpander process including producing an enriched carbon dioxide product stream, by combusting a compressed synthetic air stream, including an oxygen-enriched stream and a carbon dioxide recycle stream, with a fuel stream and expanding the combustion stream thereby producing the carbon dioxide recycle stream and an enriched carbon dioxide product stream; producing an essentially pure carbon dioxide product stream, by processing the enriched carbon dioxide product stream into a deoxo methane combustor.
    Type: Application
    Filed: April 19, 2012
    Publication date: September 5, 2013
    Inventors: Craig LAFORCE, Bhadra S. GROVER
  • Publication number: 20130156686
    Abstract: The present invention is a method of minimizing the emissions of carbon dioxide from a reformer furnace flue gas to the high pressure syngas exit water gas shift reaction unit. Including heating a first gas mixture by indirect heat exchange with one or more of an SMR furnace flue gas or an SMR furnace syngas, further heating the pre-reformed mixture in a primary reformer, thereby generating a second gas mixture comprising hydrogen, carbon monoxide, carbon dioxide, and a flue gas. Introducing the gas mixture into a standard H2 PSA unit, wherein the gas is separated into a hydrogen enriched stream and a PSA tail gas stream, and introducing PSA feed or tail gas stream into a carbon dioxide removal system, wherein the flue gas is separated into a residual flue gas stream and a carbon dioxide enriched stream.
    Type: Application
    Filed: December 20, 2011
    Publication date: June 20, 2013
    Applicants: American Air Liquide, Inc., Air Liquide Large Industries U.S. LP
    Inventors: Dennis VAUK, Bhadra S. GROVER
  • Publication number: 20130156685
    Abstract: The present invention is a method of reducing the carbon dioxide balance from a reformer furnace flue gas to the high pressure syngas exit water gas shift reaction unit. Introducing a heated gas mixture into at least one pre-reforming chamber. The heating being provided by indirect heat exchange with one or more of an SMR furnace flue gas or an SMR furnace syngas introducing the gas mixture into a standard H2 PSA unit, wherein the gas mixture is separated into a hydrogen enriched stream and a PSA tail gas stream; introducing the PSA tail gas stream into a CPU system, wherein the PSA tail gas stream is separated into a carbon dioxide enriched stream, a hydrogen rich stream, and a residual stream, and introducing the residual stream as fuel into the reformer furnace along with natural gas.
    Type: Application
    Filed: December 15, 2011
    Publication date: June 20, 2013
    Applicants: L'Air Liquide Societe Anonyme Pour l'Etude et l'Exploitation des Procedes Georges Claude, Air Liquide Large Industrial U.S. LP
    Inventors: DENNIS VAUK, Bhadra S. Grover
  • Publication number: 20130011324
    Abstract: The present invention provides a process for recovering hydrogen and high pressure high purity carbon dioxide from one or more hydrocarbon feed streams utilizing a carbon dioxide removal unit that contains sorbent beds of a magnesium based sorbent in a fluidized form.
    Type: Application
    Filed: July 5, 2011
    Publication date: January 10, 2013
    Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventor: Bhadra S. Grover
  • Publication number: 20130011323
    Abstract: The present invention relates to a process for recovering hydrogen along with high temperature high pressure carbon dioxide from one or more hydrocarbon gas streams by incorporating a carbon dioxide recovery unit which utilizes a magnesium based sorbent into a process that includes a reformer unit, a water gas shift reactor and a hydrogen pressure swing adsorption unit.
    Type: Application
    Filed: July 5, 2011
    Publication date: January 10, 2013
    Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventor: Bhadra S. Grover