Nitrogen Oxide Sorbed Patents (Class 95/129)
  • Patent number: 11059956
    Abstract: The present disclosure relates to an organic-inorganic composite for rubber reinforcement, a method for preparing the same, and a rubber composition for tires including the same. The organic-inorganic composite for rubber reinforcement according to the present disclosure exhibits excellent dispersibility in the rubber composition and reinforcing effect, and thus can be suitably used for eco-friendly tires requiring high efficiency and high fuel efficiency characteristics.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: July 13, 2021
    Assignee: LG Chem, Ltd.
    Inventors: Woo Seok Kim, Shin Hee Jun, Ha Na Lee, Kwon Il Choi, Myounghwan Oh
  • Patent number: 10940471
    Abstract: Some embodiments of the present disclosure relate to a method of regenerating at least one filter medium comprising: providing at least one filter medium, wherein the at least one filter medium comprises: at least one catalyst material; and ammonium bisulfate (ABS) deposits, ammonium sulfate (AS) deposits, or any combination thereof; flowing a flue gas stream transverse to a cross-section of a filter medium, such that the flue gas stream passes through the cross section of the at least one filter medium, wherein the flue gas stream comprises: NOx compounds comprising: Nitric Oxide (NO), and Nitrogen Dioxide (NO2); and increasing an NOx removal efficiency of the at least one filter medium after removal of deposits.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: March 9, 2021
    Assignee: W. L. Gore & Associates, Inc.
    Inventors: Zhuonan Song, Stephen Stark
  • Patent number: 9303884
    Abstract: A method and apparatus for energy-efficient desiccant dehumidification of air or other gases to low humidity levels is disclosed. The method and apparatus includes a desiccant rotor (wheel) having more than one dehumidification zone or sector. Separate dehumidification sectors may be used to dehumidify separate air or gas streams, or they may be used to dehumidify a single air or gas stream by passing it through more than one sector. All or a portion of the discharge air or gas from a dehumidification sector is used for all or a portion of reactivation inlet air or gas prior to heating. The desiccant wheel may include more than one reactivation sector, with separate air or gas sources for each sector. The desiccant wheel may include a purge sector between the reactivation and dehumidification sectors to improve the thermal efficiency of the dehumidification process.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: April 5, 2016
    Assignee: BRY AIR [ASIA] PVT. LTD.
    Inventors: Deepak Pahwa, Rajan Sachdev, William Charles Griffiths, Kuldeep Singh Malik
  • Patent number: 9196446
    Abstract: A getter composition suitable for gettering hydrogen comprises a first metal oxide and a second metal oxide, said first metal oxide being more readily reducible in hydrogen at temperatures between 0° C. and 100° C. than said second metal oxide.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: November 24, 2015
    Assignee: JOHNSON MATTHEY PLC
    Inventors: Patricia Blanco-Garcia, Paul J Collier, John West, Alison M Wagland
  • Patent number: 8974577
    Abstract: Articles for capturing or separating a target gas from a gas stream may include a porous substrate such as a flexible sheet or mat, or a rigid ceramic monolith impregnated or coated with a sorbent composition. The sorbent composition may include a polyamine and a coexistent polymer chemically bonded to the polyamine. The polyamine may include a polyethylenimine. The coexistent polymer may include a polyurethane, a polyolefin-acrylic acid copolymer, or a combination thereof. The sorbent composition may be substantially less water-insoluble than compositions containing only a polyamine and may have high durability and good adsorption capacity for acidic target gases such as carbon dioxide. Methods for preparing the articles using aqueous polymer solutions are provided. Methods for capturing or separating target gases using the articles are provided.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: March 10, 2015
    Assignee: Corning Incorporated
    Inventors: Dayue David Jiang, Steven Bolaji Ogunwumi
  • Publication number: 20150047505
    Abstract: The present invention relates to a metal organic framework comprising of a metal ion (M) and an organic ligand wherein more than one hydroxy ligand are present about the metal ion. Also provided is a method for synthesising the metal-organic frameworks and their application in areas including scrubbing exhaust gas streams of acidic gases, scrubbing natural gas of acidic gases by separation or sequestration and separating C2Ha or other VOC gases from other gas mixtures.
    Type: Application
    Filed: March 27, 2013
    Publication date: February 19, 2015
    Inventors: Martin Schroder, Sihai Yang
  • Patent number: 8888894
    Abstract: A method includes using an element which includes a monoblock concrete body with a volume greater than 1 L and a surface porosity greater than 8%, which body includes in the body and/or on a surface thereof a compound having a BET specific surface greater than 100 m2/g, and which element does not include a photocatalytic agent, to absorb from the atmosphere a gas selected from the group consisting of nitrogen oxides, carbon oxides, sulphur oxides, and ozone, or a volatile organic compound.
    Type: Grant
    Filed: October 11, 2010
    Date of Patent: November 18, 2014
    Assignee: Lafarge
    Inventors: Isabelle Dubois-Brugger, Mélanie Dykman, Matthieu Horgnies
  • Publication number: 20140311341
    Abstract: Articles for capturing or separating a target gas from a gas stream may include a porous substrate such as a flexible sheet or mat, or a rigid ceramic monolith impregnated or coated with a sorbent composition. The sorbent composition may include a polyamine and a coexistent polymer chemically bonded to the polyamine. The polyamine may include a polyethylenimine. The coexistent polymer may include a polyurethane, a polyolefin-acrylic acid copolymer, or a combination thereof. The sorbent composition may be substantially less water-insoluble than compositions containing only a polyamine and may have high durability and good adsorption capacity for acidic target gases such as carbon dioxide. Methods for preparing the articles using aqueous polymer solutions are provided. Methods for capturing or separating target gases using the articles are provided.
    Type: Application
    Filed: April 23, 2013
    Publication date: October 23, 2014
    Applicant: Corning Incorporated
    Inventors: Dayue David Jiang, Steven Bolaji Ogunwumi
  • Publication number: 20140157987
    Abstract: To provide an Fe(II)-substituted beta type zeolite which has been ion-exchanged with Fe(II) ions and can effectively adsorb and remove nitrogen monoxide or hydrocarbon contained in gas to be cleaned, even if oxygen is present in the gas at a high concentration or the temperature of the gas is low. In the Fe(II)-substituted beta type zeolite, a ratio of SiO2/Al2O3 is preferably 10 to 18, a BET specific surface area is preferably 400 m2/g to 700 m2/g, a micropore specific surface area is preferably 290 m2/g to 500 m2/g, and a micropore volume is preferably 0.15 cm3/g to 0.25 cm3/g. The amount of Fe(II) supported is preferably 0.01% by mass to 6.5% by mass based on the Fe(II)-substituted beta type zeolite.
    Type: Application
    Filed: January 17, 2012
    Publication date: June 12, 2014
    Applicants: THE UNIVERSITY OF TOKYO, NIPPON CHEMICAL INDUSTRIAL CO., LTD.
    Inventors: Masaru Ogura, Keiji Itabashi, Tatsuya Okubo, Shanmugam Palani Elangovan
  • Patent number: 8741222
    Abstract: Various systems, devices, NO2 absorbents, NO2 scavengers and NO2 recuperator for generating nitric oxide are disclosed herein. According to one embodiment, an apparatus for converting nitrogen dioxide to nitric oxide can include a receptacle including an inlet, an outlet, a surface-active material coated with an aqueous solution of ascorbic acid and an absorbent wherein the inlet is configured to receive a gas flow and fluidly communicate the gas flow to the outlet through the surface-active material and the absorbent such that nitrogen dioxide in the gas flow is converted to nitric oxide.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: June 3, 2014
    Assignee: Geno LLC
    Inventors: David H. Fine, Gregory Vasquez, David P. Rounbehler
  • Patent number: 8734571
    Abstract: Reduction of water, CO2 and N2O in an air stream comprising: passing said air stream at a feed temperature through a first adsorbent, whose Henry's Law selectivity for CO2/N2O is at least 12.5, and a second adsorbent, whose Henry's Law constant for CO2 is less than 1020 mmol/g/atom and whose Henry's Law selectivity for CO2/N2O is at most 5; and passing a heated regenerating gas at a temperature which is between 20° C. and 80° C. to at least the second adsorbent, and passing a second regenerating gas at a temperature less than the temperature of the heated regenerating gas to the first and second adsorbents in a direction opposite to the feed direction; the second adsorbent occupying from 25% to 40% of the total volume of the adsorbents, and the temperature of the heated regenerating gas being 10° C. to 60° C. higher than the feed temperature.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: May 27, 2014
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Christopher Timothy Golden, Mohammad Ali Kalbassi, Christopher James Raiswell, Christine Waweru, Michaela Pollock
  • Patent number: 8702845
    Abstract: The invention pertains to a system for purification of a carbon dioxide rich flue gas generated in a boiler combusting a fuel in the presence of a gas containing oxygen, and being contaminated by NOx gases, wherein the system comprising one or more gas drier(s) comprising desiccants for removal of at least a portion of water content of the further compressed carbon dioxide rich flue gas; and a closed loop connected to the drier(s) for regeneration of desiccants of the drier(s) wherein the NOx gases are removed substantially separately from the water vapor. The invention pertains also to a method for removing the NOx gases substantially separately from the water vapor.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: April 22, 2014
    Assignee: ALSTOM Technology Ltd
    Inventor: Olaf Stallmann
  • Publication number: 20140083293
    Abstract: Adsorber for adsorbing a fluid, comprising a cylinder with at least two parallel-passage contactors disposed in series in the direction of flow of the fluid to be adsorbed, and characterised in that each contactor comprises an internal insulation.
    Type: Application
    Filed: April 20, 2012
    Publication date: March 27, 2014
    Applicant: l' Air Liquide, Société Anonyme pour I'Etude et I'Exploitation des Procédés Georges Claude
    Inventor: Benoit Davidian
  • Patent number: 8609028
    Abstract: Inhalation of low levels of nitric oxide can rapidly and safely decrease pulmonary hypertension in mammals. A nitric oxide delivery system that converts nitrogen dioxide to nitric oxide employs a surface-active material, such as silica gel, coated with an aqueous solution of antioxidant, such as ascorbic acid.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: December 17, 2013
    Assignee: Geno LLC
    Inventors: David R. Rounbehler, David H. Fine
  • Patent number: 8609026
    Abstract: Various systems, devices, NO2 absorbents, NO2 scavengers and NO2 recuperator for generating nitric oxide are disclosed herein. According to one embodiment, an apparatus for converting nitrogen dioxide to nitric oxide can include a receptacle including an inlet, an outlet, a surface-active material coated with an aqueous solution of ascorbic acid and an absorbent wherein the inlet is configured to receive a gas flow and fluidly communicate the gas flow to the outlet through the surface-active material and the absorbent such that nitrogen dioxide in the gas flow is converted to nitric oxide.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: December 17, 2013
    Assignee: GENO LLC
    Inventors: David Fine, Gregory Vasquez, David P. Rounbehler
  • Patent number: 8568512
    Abstract: The method and system for methane separation and purification from a biogas includes collecting a raw Biogas gas stream having methane, carbon dioxide, water, sulfur compounds and non-methane organic compound (NMOC) constituents. The Biogas stream is fed into the intake of a liquid sulfur scrubber or a sulfur adsorber unit where the Biogas is separated into a main gas stream routed downstream in the system and a sulfur compounds stream removed from the system. The main gas stream is then processed by an NMOC absorber and further downstream, by an NMOC adsorber. NMOC produced by both NMOC processes is liquefied, removed from the system and stored. Upstream from the NMOC processes, the main gas stream is processed by at least one CO2, N2, O2 gas separation unit that produces a usable product stream of enriched methane gas, and an off-gas stream, which a VPSAU processes for venting and recycling.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: October 29, 2013
    Assignee: A.R.C. Technologies Corporation
    Inventors: Stanley M. Siegel, Dennis C. Siegel
  • Publication number: 20130269524
    Abstract: The invention relates to an adsorbent zeolite-based material comprising for 100 mass % an amount different from zero of a zeolite selected from X zeolites or LSX zeolites; the balance up to 100 mass % consisting of an amount different from zero of a cation-exchanged zeolite, said cation-exchanged zeolite being selected from cation-exchanged X zeolites and cation-exchanged LSX zeolites.
    Type: Application
    Filed: January 4, 2012
    Publication date: October 17, 2013
    Applicant: L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventor: Christian Monereau
  • Publication number: 20130239808
    Abstract: Embodiments of the present disclosure provide for collection devices, methods of making collection devices, methods of collecting gases and aerosol particles, and the like.
    Type: Application
    Filed: April 1, 2013
    Publication date: September 19, 2013
    Applicant: University of Florida Research Foundation, Inc.
    Inventors: Chang-Yu Wu, Yu-Mei Hsu, Alex Theodore, Lin Shou, Danielle Lyon Hall
  • Patent number: 8409329
    Abstract: A method for the purification of a feed gas stream containing CO2 and water and at least one impurity chosen from NOx and SOx, comprising the incorporation of a purification step for the preferential elimination of water is provided.
    Type: Grant
    Filed: July 8, 2008
    Date of Patent: April 2, 2013
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Bruno Alban, Christophe Claeys, Philippe Court, Arthur Darde, Guillaume De Smedt, Bao Ha, Vladimir Hasanov, Simon Jallais, Christian Monereau, Serge Moreau, Elise Renou, Ivan Sanchez-Molinero, Jean-Pierre Tranier
  • Publication number: 20130053585
    Abstract: Fe2(dobdc) has a metal-organic framework with a high density of coordinatively-unsaturated FeII centers lining the pore surface. It can be effectively used to separate O2 from N2 and in a number of additional separation applications based on selective, reversible electron transfer reactions. In addition to being an effective O2 separation material, it can be used for many other processes, including paraffin/olefin separation, nitric oxide/nitrous oxide separation, acetylene storage, and as an oxidation catalyst.
    Type: Application
    Filed: August 24, 2012
    Publication date: February 28, 2013
    Applicant: The Regents of the University of California
    Inventors: Jeffrey R. LONG, Eric D. BLOCH, Leslie MURRAY
  • Publication number: 20130036905
    Abstract: The various embodiments of the present invention relate to compositions, apparatus, and methods comprising sorbent fibers. More particularly, various embodiments of the present invention are directed towards sorbent fiber compositions for temperature swing adsorption processes. Various embodiments of the present invention comprise sorbent fiber compositions, apparatus comprising a plurality of sorbent fibers, and methods of using the same for the capture of at least one component from a medium, for example CO2 from flue gas.
    Type: Application
    Filed: February 24, 2012
    Publication date: February 14, 2013
    Applicants: ExxonMobil Research and Engineering Company, Georgia Tech Research Corporation
    Inventors: Ryan Lively, Ronald R. Chance, William J. Koros, Harry Deckman, Bruce T. Kelley
  • Patent number: 8366806
    Abstract: A hydrocarbon adsorbent that includes a zeolite with either a H-FER structure or a MOR structure in which the pore diameter has been adjusted by ion exchange. A propane adsorbent that includes a zeolite with a MFI structure having a Si/Al ratio of no more than 20. A hydrocarbon removal unit that includes a TSA pre-purification unit having a column packed with sequential layers of activated alumina, a NaX zeolite, and the hydrocarbon adsorbent. A method of reducing the hydrocarbon content within liquid oxygen inside a cryogenic air separation unit that includes purifying feed air with the above pre-purification unit.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: February 5, 2013
    Assignee: Taiyo Nippon Sanso Corporation
    Inventors: Tatsuya Hidano, Morimitsu Nakamura, Masato Kawai
  • Publication number: 20120312164
    Abstract: This invention provides a metal complex having a gas adsorption capability, a gas storing capability, and a gas separation capability. The present invention attained the above object by a metal complex comprising: a dicarboxylic acid compound (I) represented by the following General Formula (I), wherein R1, R2, R3, and R4 are as defined in the specification; at least one metal ion selected from ions of a metal belonging to Group 2 and Groups 7 to 12 of the periodic table; and an organic ligand capable of bidentate binding to the metal ion, the organic ligand belonging to the D?h point group, having a longitudinal length of not less than 8.0 ? and less than 16.0 ?, and having 2 to 7 heteroatoms.
    Type: Application
    Filed: February 24, 2011
    Publication date: December 13, 2012
    Applicant: Kuraray Co., LTD.
    Inventors: Yasutaka Inubushi, Chikako Ikeda, Koichi Kanehira
  • Patent number: 8282715
    Abstract: Carbon dioxide-containing feed stream such as flue gas is treated to produce a high-purity carbon dioxide stream by a series of steps including removing SOx and NOx with activated carbon, carrying out subambient-temperature processing to produce a product stream and a vent stream, and treating the vent stream by pressure swing adsorption or by physical or chemical absorption to produce a product stream which is recycled to the feed stream.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: October 9, 2012
    Assignee: Praxair Technology, Inc.
    Inventors: Nick Joseph Degenstein, Minish Mahendra Shah, Bernard Thomas Neu
  • Patent number: 8246725
    Abstract: A nitric oxide delivery system, which includes a gas bottle having nitrogen dioxide in air, converts nitrogen dioxide to nitric oxide and employs a surface-active material, such as silica gel, coated with an aqueous solution of antioxidant, such as ascorbic acid. A nitric oxide delivery system may be used to generate therapeutic gas including nitric oxide for use in delivering the therapeutic gas to a mammal.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: August 21, 2012
    Assignee: Geno LLC
    Inventors: David R. Rounbehler, David H. Fine
  • Patent number: 8246721
    Abstract: The invention relates to a method for purifying a supply gaseous flow containing at least 5 vol. % of N2O and oxygen, in which: (a) the gaseous flow is contacted with a main adsorbent (3) including at least one zeolite exchanged at more than 50% by one or more metal cations and having an N2O adsorption capacity, as measured under 1 bar and at 200° C., of more than 80 Ncm/g in order to adsorb at least a portion of the N2O from said flow and to produce a purified gaseous flow; and (b) recovering a purified gaseous flow having an N2O content lower than the N2O content of the supply gaseous flow contacted with the main adsorbent during step (a).
    Type: Grant
    Filed: March 13, 2008
    Date of Patent: August 21, 2012
    Assignee: L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventor: Serge Moreau
  • Publication number: 20120204719
    Abstract: A method includes using an element which includes a monoblock concrete body with a volume greater than 1 L and a surface porosity greater than 8%, which body includes in the body and/or on a surface thereof a compound having a BET specific surface greater than 100 m2/g, and which element does not include a photocatalytic agent, to absorb from the atmosphere a gas selected from the group consisting of nitrogen oxides, carbon oxides, sulphur oxides, and ozone, or a volatile organic compound.
    Type: Application
    Filed: October 11, 2010
    Publication date: August 16, 2012
    Applicant: Lafarge
    Inventors: Isabelle Dubois-Brugger, Mélanie Dykman, Matthieu Horgnies
  • Patent number: 8216344
    Abstract: Carbon dioxide-containing feed stream such as flue gas is treated to produce a high-purity carbon dioxide stream by a series of steps including removing SOx and NOx with activated carbon, carrying out subambient-temperature processing to produce a product stream and a vent stream, and treating the vent stream by pressure swing adsorption or by physical or chemical absorption to produce a product stream which is recycled to the feed stream.
    Type: Grant
    Filed: September 22, 2009
    Date of Patent: July 10, 2012
    Assignee: Praxair Technology, Inc.
    Inventors: Nick Joseph Degenstein, Minish Mahendra Shah, Bernard Thomas Neu
  • Publication number: 20120167761
    Abstract: A method comprising (i) providing a metal organic framework formed by AlIII ions to which fumarate ions are coordinated to produce a porous framework structure, (ii) bringing a substance into contact with the metal organic framework such that the substance is uptaken by the porous metal organic framework to provide storage of or controlled release of, the substance.
    Type: Application
    Filed: January 10, 2012
    Publication date: July 5, 2012
    Applicant: BASF SE
    Inventors: Christoph Kiener, Ulrich Müller, Markus Schubert
  • Patent number: 8187544
    Abstract: Various systems, devices, NO2 absorbents, NO2 scavengers and NO2 recuperator for generating nitric oxide are disclosed herein. According to one embodiment, an apparatus for converting nitrogen dioxide to nitric oxide can include a receptacle including an inlet, an outlet, a surface-active material coated with an aqueous solution of ascorbic acid and an absorbent wherein the inlet is configured to receive a gas flow and fluidly communicate the gas flow to the outlet through the surface-active material and the absorbent such that nitrogen dioxide in the gas flow is converted to nitric oxide.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: May 29, 2012
    Assignee: Geno LLC
    Inventors: David Fine, Gregory Vasquez, David P. Rounbehler
  • Patent number: 8182775
    Abstract: Dry-scrubbing media compositions, methods of preparing same, and methods of use are provided. The compositions contain activated alumina and potassium carbonate. Optionally, activated carbon and other impregnates, such as sulfates of group 1A metals, are included in the compositions. The compositions exhibit improved efficiency and capacity for the removal of compounds such as chlorine or sulfur dioxide from an air-stream. The compositions are particularly useful for reducing or preventing the release of toxic gaseous compounds from the areas such as petroleum storage areas, refineries, drinking water systems, sewage treatment facilities, swimming pools, hospital morgues, animal rooms, and pulp and paper production sites.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: May 22, 2012
    Assignee: Purafil, Inc.
    Inventor: William G. England
  • Patent number: 8172925
    Abstract: A multi-functional cabin air filter includes a dust collecting filter layer for collecting fine dust; an oxidation catalyst filter layer for oxidizing nitrogen monoxide into nitrogen dioxide; and an adsorption filter layer for adsorbing nitrogen dioxide and volatile organic compounds, wherein antimicrobial nanoparticles are applied to at least one of the dust collecting filter layer, the oxidation catalyst filter layer and the adsorption filter layer. This cabin air filter has dust collecting, denitrifying, deodorizing and antimicrobial functions, and it may be utilized in various ways for air purification in a limited space such as a vehicle.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: May 8, 2012
    Assignee: Korea Institute of Science and Technology
    Inventors: Gwi-Nam Bae, Seung Bok Lee, Jong Soo Jurng, Kil Choo Moon, Jae Soo Rhee, Sang Woo Yom, Kil Hong Song
  • Publication number: 20120055334
    Abstract: A method for removing negatively-charged gas molecules includes the steps of: adsorbing negatively-charged gas molecules by a substrate carrying a positively-charged substance or a positively-charged substance and a negatively-charged substance on the surface of the substrate or in a surface layer of the substrate; and desorbing the aforementioned negatively-charged gas molecules adsorbed on the aforementioned substrate, from the substrate using a fluid. According to the present invention, negatively-charged gas molecules are removed or detoxified by adsorbing the same by a substrate carrying a positively-charged substance, or a positively-charged substance and a negatively-charged substance, on the surface of the substrate. Thereby, it is possible to provide a simple process by which negatively-charged gas molecules are able to be effectively and economically removed or detoxified.
    Type: Application
    Filed: November 15, 2011
    Publication date: March 8, 2012
    Applicant: Sustainable Titania Technology Inc.
    Inventors: Shiro Ogata, Yoshimitsu Matsui
  • Patent number: 8075672
    Abstract: Hydroxylamine is formed in a reactor through a partial hydrogenation of nitric oxide gas (NO) with hydrogen gas (H2) in an aqueous medium with nitrogen gas (N2) as an inert gas. The formation of the hydroxylamine forms nitrous oxide gas (N2O). The gases and the water vapor are flowed away from the reactor in a vent gas stream enabling recycling of the gases. The N2O is removed from the vent gas stream to reduce flammability. Once the N2O is removed, the NO, H2, and N2 are recycled and re-used in the reactor to form additional hydroxylamine. The N2O removed from the vent gas stream is of high purity and can be commercially sold or economically discarded.
    Type: Grant
    Filed: September 27, 2006
    Date of Patent: December 13, 2011
    Assignee: BASF SE
    Inventors: Naheed Virani, Thomas Seagraves, Wayne David Musselman, William Stewart Chan, Kent S. Knaebel, Heungsoo Shin
  • Publication number: 20110293509
    Abstract: The invention provides a water gas shift process comprising a reaction stage. The reaction stage comprises (a) providing a gas mixture comprising CO, H2O and an acid gas component to a reactor containing an adsorbent, and (b) subjecting the gas mixture to water gas shift reaction conditions to perform the water gas shift reaction. The adsorbent comprises an alkali promoted alumina based material. The acid gas component comprises H2S.
    Type: Application
    Filed: May 20, 2011
    Publication date: December 1, 2011
    Inventors: Paul Dean COBDEN, Stéphane Walspurger, Rudolf Willem Van Den Brink, Hendricus Adrianus Johannes Van Dijk
  • Publication number: 20110247495
    Abstract: The present invention relates to a structure having a core-shell configuration. The core comprises a predetermined adsorber solid material, and the shell at least partially surrounding the core comprises a predetermined humidity controlling material, thereby enabling using said adsorber solid material for interacting with and thus storing therein a predetermined adsorbable gas under desired environmental conditions. The invention also discloses a pressure vessel for use in storing at least one gas.
    Type: Application
    Filed: April 22, 2010
    Publication date: October 13, 2011
    Inventors: Doron Marco, Shany Peled
  • Patent number: 8025860
    Abstract: Acid mist may be removed efficiently from a gas stream using at least one fiber bed mist eliminator operating at elevated pressure of typically at least 2 bar (0.2 MPa), e.g. at about 4 bar (0.4 MPa) to about 50 bar (5 MPa). The invention has particular application in methods for processing carbon dioxide flue gas in which SO2 and/or NOx contaminants are converted at elevated pressure to sulfuric acid condensate and/or nitric acid condensate respectively.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: September 27, 2011
    Assignee: Air Products and Chemicals, Inc.
    Inventor: Barry Wayne Diamond
  • Patent number: 8012446
    Abstract: NO2 may be removed from a carbon dioxide feed gas comprising NOx and at least one “non-condensable” gas as contaminants by passing the feed gas at a first elevated pressure through a first adsorption system that selectively adsorbs at least NO2 to produce at least substantially NO2-free carbon dioxide gas. The adsorption system is at least partially regenerated using a carbon dioxide-rich gas recovered from the substantially NO2-free carbon dioxide gas after purification. The invention has particular application in removing NOx and water from flue gas generated by oxyfuel combustion.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: September 6, 2011
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Andrew David Wright, Kevin Boyle Fogash, Vincent White, Jeffrey William Kloosterman, Timothy Christopher Golden, Paul Higginbotham
  • Patent number: 8007573
    Abstract: A filter includes a membrane having pores and that is air permeable. A nanoparticle precursor is dispersed throughout the pores, and the nanoparticle precursor is responsive to a stimulus to form a catalytically active nanoparticle. An associated method is also provided.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: August 30, 2011
    Assignee: General Electric Company
    Inventors: Vishal Bansal, Benjamin Hale Winkler, Hieu Minh Duong, Tamaki Ryo
  • Patent number: 8007555
    Abstract: A panel air filter assembly, for use in heating, ventilating and air conditioning (HVAC) systems, which has a single filter element with multiple portions. The single filter element is sectioned into substantially equally-dimensioned and separate filter portions. Each of the filter portions includes a specific type of medium and is distinct from one another, so as to remove different types of contaminants from the outdoor supply air before entering heating, ventilating and air conditioning systems. A waterproof paperboard frame securely supports the filter element at the filter element's marginal edges.
    Type: Grant
    Filed: March 30, 2008
    Date of Patent: August 30, 2011
    Inventor: Nicholas L. Lack
  • Publication number: 20110206587
    Abstract: A method is provided for separation of nitrogen oxides (NOx) from an epoxide-containing gas stream. The separation of nitrogen oxides (NOx) is performed by gas-liquid sorption and/or by gas-solid sorption.
    Type: Application
    Filed: June 16, 2009
    Publication date: August 25, 2011
    Applicant: Zylum Beteiligungsgesellschaft mbH & Co. Patente II KG
    Inventor: Torsten Berndt
  • Publication number: 20110197763
    Abstract: The invention concerns materials for eliminating oxides of nitrogen NO and NO2 present in exhaust gases, in particular from the internal combustion engines of automotive vehicles operating in a medium which is super-stoichiometric in oxidising agents, which can adsorb oxides of nitrogen then desorb the oxides of nitrogen by elevating the temperature with respect to the adsorption temperature or by passage of a rich mixture, said materials comprising mixed oxides the metals of which are in octahedral coordination, with the octahedra connecting together so that the structure generates lamellae. Said materials adsorb oxides of nitrogen by insertion and do not become poisoned in contact with oxides of sulphur and carbon contained in the gases. In the presence of a group VIII metal, said materials are capable of eliminating oxides of nitrogen adsorbed by reduction during the passage of a rich mixture.
    Type: Application
    Filed: July 24, 2002
    Publication date: August 18, 2011
    Inventors: Thierry Becue, Philippe Villeret
  • Publication number: 20110158872
    Abstract: The present invention relates to a method and a multi-component system for adsorbing contaminants and/or pollutants from a contaminated hot fluid by using a turbulent air stream, to adiabatically cool the temperature of the fluid, in association with one or more adsorbents. The system of the present invention can also be coupled to a recovery and recycling unit to recover and recycle the contaminant and/or pollutant and the adsorbent material.
    Type: Application
    Filed: November 3, 2010
    Publication date: June 30, 2011
    Inventor: Parisa A. Ariya
  • Patent number: 7935177
    Abstract: The present invention relates to a novel method of purifying a gas stream contaminated by CO2, hydrocarbons and/or nitrogen oxides, in particular a gas stream based on air or a syngas, by adsorption on a bed of aggregated zeolitic adsorbent based on an LSX zeolite or LSX and X zeolites, of which at least 90% of the exchangeable cationic sites of the LSX zeolite or of the LSX/X zeolite blend are occupied by sodium ions, and the inert binder of which represents at most 5% of the weight of the adsorbent.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: May 3, 2011
    Assignee: Ceca S.A.
    Inventors: Cecile Lutz, Paul-Guillaume Schmitt
  • Patent number: 7931736
    Abstract: A hydrocarbon adsorbent that includes a zeolite with either a H-FER structure or a MOR structure in which the pore diameter has been adjusted by ion exchange. A propane adsorbent that includes a zeolite with a MFI structure. A hydrocarbon removal unit that includes a TSA pre-purification unit having a column packed with sequential layers of activated alumina, a NaX zeolite, and the hydrocarbon adsorbent. A method of reducing the hydrocarbon content within liquid oxygen inside a cryogenic air separation unit that includes purifying feed air with the above pre-purification unit.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: April 26, 2011
    Assignee: Taiyo Nippon Sanso Corporation
    Inventors: Tatsuya Hidano, Morimitsu Nakamura, Masato Kawai
  • Patent number: 7914743
    Abstract: Various systems, devices, NO2 absorbents, NO2 scavengers and NO2 recuperator for generating nitric oxide are disclosed herein. According to one embodiment, an apparatus for converting nitrogen dioxide to nitric oxide can include a receptacle including an inlet, an outlet, a surface-active material coated with an aqueous solution of ascorbic acid and an absorbent wherein the inlet is configured to receive a gas flow and fluidly communicate the gas flow to the outlet through the surface-active material and the absorbent such that nitrogen dioxide in the gas flow is converted to nitric oxide.
    Type: Grant
    Filed: January 28, 2009
    Date of Patent: March 29, 2011
    Assignee: Geno LLC
    Inventors: David Fine, Gregory Vasquez, David P. Rounbehler
  • Patent number: 7850761
    Abstract: There is provided an apparatus for highly purifying nitric oxide by removing impurities included in nitric oxide, which comprises: a number of dehumidifiers connected to one another in a series, to remove water and carbon dioxide from the nitric oxide; a vaporizing and liquefying unit for respectively separating impurities into a gaseous state and a liquid state by cooling the nitric oxide which passed through the dehumidifiers at sub-zero temperatures; a storage tank for storing highly purified nitric oxide separated by the vaporizing and liquefying unit; an exhaust pump for discharging gaseous impurities, separated by the vaporizing and liquefying unit, to a scrubber; an outlet for discharging liquid impurities, separated by the vaporizing and liquefying unit, to the scrubber; and the scrubber 50 for purifying the gaseous and liquid impurities.
    Type: Grant
    Filed: March 23, 2007
    Date of Patent: December 14, 2010
    Assignee: Wonikmurtrealize Co., Ltd.
    Inventors: Jun-Youl Lee, Bong-Soo Seo
  • Patent number: 7824474
    Abstract: A method of activating a molded Cu-ZSM5 zeolite adsorbent of the present invention includes: oxidizing a molded product of Cu-ZSM5 zeolite in the flow of air or a gas having an equivalent oxidizability to the air at a temperature of 250° C. to 550° C.; and then heat-treating the molded product of the Cu-ZSM5 zeolite in vacuum or the flow of an inert gas at a temperature of 550° C. to 800° C. According to the present invention, an adsorbent whose adsorption performance is not deteriorated can be obtained in the case where a molded product is produced using Cu-ZSM5 zeolite.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: November 2, 2010
    Assignee: Taiyo Nippon Sanso Corporation
    Inventors: Akihiro Nakamura, Kazuhiko Fujie, Masato Kawai
  • Publication number: 20100242728
    Abstract: A low-pressure multifunctional filter separates CO2 and other air pollutants from flue, coal, natural and other gas mixtures. The separation agent is a solid carbon-rich sorbent, such as coke, charcoal, coal or activated carbon, that captures CO2 and other air pollutants at lower temperatures and liberates them at higher temperatures. The sorbent is regenerated by heating with direct steam, hot CO2 or other source of thermal energy. The recovered CO2-rich product can be used for enhanced oil recovery, enhanced methane recovery, and subsequent storage in depleted oil and gas reservoirs.
    Type: Application
    Filed: May 12, 2008
    Publication date: September 30, 2010
    Applicant: UNIVERSITY OF WYOMING
    Inventors: Maciej Radosz, Youqing Shen
  • Patent number: 7749312
    Abstract: An air conditioning system comprising a gas-impermeable wall defining a space for air conditioning, and a selective separating member disposed in the wall as a part of the wall, having a function of allowing preferential permeation of oxygen and carbon dioxide and at the same time, blocking the permeation of hydrocarbon, nitrogen oxide, sulfur oxide and a fine solid component, in which the selective separating member comprises an organic polymer and satisfies the relationship of P1/P2>10 wherein P1 is the permeation coefficient of oxygen and carbon dioxide and P2 is the permeation coefficient of hydrocarbon, nitrogen oxide, sulfur oxide and a fine solid component.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: July 6, 2010
    Assignee: Denso Corporation
    Inventors: Kenji Takigawa, Tetsuo Toyama, Hitoshi Hayashi