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).
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Patent number: 9272940Abstract: 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: GrantFiled: December 27, 2013Date of Patent: March 1, 2016Assignee: L'Air Liquid Sociétë Anonyme Pour L'Ëtude Et L'Exploitation Des Procedes Georges ClaudeInventors: Wei Huang, Youssef Joumani, Remi Pierre Tsiava, Bhadra S. Grover
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Patent number: 9186614Abstract: 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: GrantFiled: June 12, 2013Date of Patent: November 17, 2015Assignee: L'Air Liquide Société Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges ClaudeInventor: Bhadra S. Grover
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Patent number: 9114352Abstract: 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: GrantFiled: December 18, 2012Date of Patent: August 25, 2015Assignee: L'Air Liquide Société Anonyme Pour LÉtude Et L'Exploitation Des Procedes Georges ClaudeInventors: Trapti Chaubey, Bhadra S. Grover, Pascal Tessier
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Patent number: 9086015Abstract: 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: GrantFiled: April 19, 2012Date of Patent: July 21, 2015Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges ClaudeInventors: Craig LaForce, Bhadra S. Grover
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Publication number: 20150183675Abstract: 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: ApplicationFiled: December 27, 2013Publication date: July 2, 2015Applicant: Air Liquide, Societe Anonyme pour Etude et Exploitation des Procedes Georges ClaudeInventors: WEI HUANG, Youssef Joumani, Remi Pierre Tsiava, Bhadra S. Grover
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Patent number: 9044704Abstract: 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: GrantFiled: June 21, 2012Date of Patent: June 2, 2015Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges ClaudeInventors: Bhadra S. Grover, Kenneth Kaiser, Michael Garry Keith Grant, Wei Huang
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Patent number: 9010152Abstract: 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: GrantFiled: December 31, 2012Date of Patent: April 21, 2015Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventors: Wei Huang, Youssef Joumani, Remi Pierre Tsiava, Bhadra S. Grover
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Patent number: 8877155Abstract: 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: GrantFiled: June 12, 2013Date of Patent: November 4, 2014Assignee: L'Air Liquide, Société Anonyme pour l'Étude et l'Éxploitation des Procédés Georges ClaudeInventor: Bhadra S. Grover
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Patent number: 8722010Abstract: 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: GrantFiled: December 13, 2012Date of Patent: May 13, 2014Assignee: L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventor: Bhadra S. Grover
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Patent number: 8636922Abstract: 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: GrantFiled: June 30, 2010Date of Patent: January 28, 2014Assignee: L'Air Liquide Societe Anonyme Pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventors: Bhadra S. Grover, Paul Terrien
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Publication number: 20130341839Abstract: 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: ApplicationFiled: June 21, 2012Publication date: December 26, 2013Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges ClaudeInventors: Bhadra S. Grover, Kenneth Kaiser, Michael Garry Keith Grant, Wei Huang
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Publication number: 20130344450Abstract: 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: ApplicationFiled: June 21, 2012Publication date: December 26, 2013Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges ClaudeInventors: Bhadra S. Grover, Michael Garry Keith Grant
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Patent number: 8591769Abstract: 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: GrantFiled: December 15, 2011Date of Patent: November 26, 2013Assignees: Air Liquide Large Industries U.S. LP, L'Air Liquide Société Anonyme pour l'Étude et l'Exploitation de Procédés Georges ClaudeInventors: Dennis Vauk, Bhadra S. Grover
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Patent number: 8580153Abstract: 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: GrantFiled: December 20, 2011Date of Patent: November 12, 2013Assignees: Air Liquide Large Industries U.S. LP, L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventors: Dennis A. Vauk, Bhadra S. Grover
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Patent number: 8535638Abstract: 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: GrantFiled: December 21, 2010Date of Patent: September 17, 2013Assignees: Air Liquide Large Industries U.S., L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventors: Paul Terrien, Trapti Chaubey, Purushottam V. Shanbhag, Bhadra S. Grover, Dennis A. Vauk, Arthur Darde
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Publication number: 20130227961Abstract: 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: ApplicationFiled: April 19, 2012Publication date: September 5, 2013Inventors: Craig LAFORCE, Bhadra S. GROVER
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Publication number: 20130156685Abstract: 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: ApplicationFiled: December 15, 2011Publication date: June 20, 2013Applicants: L'Air Liquide Societe Anonyme Pour l'Etude et l'Exploitation des Procedes Georges Claude, Air Liquide Large Industrial U.S. LPInventors: DENNIS VAUK, Bhadra S. Grover
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Publication number: 20130156686Abstract: 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: ApplicationFiled: December 20, 2011Publication date: June 20, 2013Applicants: American Air Liquide, Inc., Air Liquide Large Industries U.S. LPInventors: Dennis VAUK, Bhadra S. GROVER
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Publication number: 20130009099Abstract: The present invention provides for an energy efficient process of producing hydrogen/carbon monoxide gas mixtures from one or more hydrocarbon gas streams treated in a syngas producing unit by utilizing a carbon dioxide removal unit that contains sorbent beds in which a magnesium based sorbent is transported and cycled between different beds for sorption and desorption of carbon dioxide. The carbon dioxide recovered during the process is recovered at high temperature and high pressure therefore allowing for at least a portion of the carbon dioxide stream to be recycled for further treatment with little or no compression of the stream.Type: ApplicationFiled: July 5, 2011Publication date: January 10, 2013Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges ClaudeInventor: Bhadra S. Grover
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Publication number: 20130011325Abstract: 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 gasification unit, an optional sulfur removal unit, a water gas shift reactor and a hydrogen pressure swing adsorption unit.Type: ApplicationFiled: July 5, 2011Publication date: January 10, 2013Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges ClaudeInventor: Bhadra S. Grover