Sorbent For Fluid Storage, Other Than An Alloy For Hydrogen Storage Patents (Class 502/526)
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Patent number: 8034739Abstract: A method of selecting an appropriate resin bonded sorbent composition which may be used at least for in part making an enclosure to protect contents from external humidity including the steps of: a) selecting a plurality of resins, a plurality of sorbents and a plurality of ratios therebetween to form a plurality of composites; b) calculating a plurality of failure times for the plurality of composites, wherein each failure time of the plurality of failure times is based on when an internal relative humidity of each composite of the plurality of composites is equal to the maximum internal relative humidity; c) determining which of the plurality of failure times is greater; and, d) selecting one composite of the plurality of composites based on the result of step (c).Type: GrantFiled: March 28, 2008Date of Patent: October 11, 2011Assignee: Multisorb Technologies, Inc.Inventors: Stanislav E. Solovyov, Thomas Powers, Samuel A. Incorvia
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Patent number: 8002880Abstract: A pyrolyzed monolith carbon physical adsorbent that is characterized by at least one of the following characteristics: (a) a fill density measured for arsine gas at 25° C. and pressure of 650 torr that is greater than 400 grams arsine per liter of adsorbent; (b) at least 30% of overall porosity of the adsorbent including slit-shaped pores having a size in a range of from about 0.3 to about 0.72 nanometer, and at least 20% of the overall porosity including micropores of diameter<2 nanometers; and (c) having a bulk density of from about 0.80 to about 2.0 grams per cubic centimeter, preferably from 0.9 to 2.0 grams per cubic centimeter.Type: GrantFiled: February 24, 2009Date of Patent: August 23, 2011Assignee: Advanced Technology Materials, Inc.Inventor: J. Donald Carruthers
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Patent number: 7976620Abstract: A hydrogen storage system for storing hydrogen gas at elevated pressures and cryogenic temperatures is disclosed. The hydrogen gas is fed to a storage container which contains a physisorption type material and a volatile liquid container for liquid nitrogen. Cryogenic conditions are maintained within the storage container during the periods of storage and the periods where the hydrogen gas is removed from the storage system.Type: GrantFiled: May 2, 2007Date of Patent: July 12, 2011Assignee: Linde North America, Inc.Inventors: Ron Lee, Frank R. Fitch, Satish S. Tamhankar
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Patent number: 7901491Abstract: Disclosed herein is a hydrogen storage material comprising a metal hydride and an organic hydrogen carrier. Also disclosed herein is a hydrogen storage/fuel cell system which employs the hydrogen storage material.Type: GrantFiled: March 31, 2008Date of Patent: March 8, 2011Assignee: General Electric CompanyInventors: Ji-Cheng Zhao, Grigorii Lev Soloveichik
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Patent number: 7824473Abstract: Disclosed herein are metal-organic frameworks of metals and boron rich ligands, such as carboranes and icosahedral boranes. Methods of synthesizing and using these materials in gas uptake are disclosed.Type: GrantFiled: July 25, 2008Date of Patent: November 2, 2010Assignee: Northwestern UniversityInventors: Chad A. Mirkin, Joseph T. Hupp, Omar K. Farha, Alexander M. Spokoyny, Karen L. Mulfort
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Patent number: 7825056Abstract: The present invention relates to zeolitic compositions of at least one A, X, Y zeolite and/or chabazite and at least one clinoptilolite type of zeolite. These zeolitic compositions can be used in adsorption methods for removing H2O and/or CO2 and/or H2S present in gas or liquid mixtures, particularly for purifying natural gas, acid gases, alcohols and mercaptans.Type: GrantFiled: March 30, 2005Date of Patent: November 2, 2010Assignee: Ceca, S.A.Inventors: Rémi Le Bec, Nicolas Serge
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Patent number: 7771512Abstract: Method and apparatus for storing hydrogen. One embodiment of such a method comprises providing a storage apparatus having a substrate and a nanostructure mat on at least a portion of a side of the substrate. The nanostructure mat comprises a plurality of nanostructures having a surface ionization state which causes more than one layer of hydrogen to adsorb onto the nanostructures. The method can also include exposing the nanostructure mat to hydrogen such that more than one layer of hydrogen adsorbs onto the nanostructures.Type: GrantFiled: December 20, 2007Date of Patent: August 10, 2010Assignees: Washington State University Research Foundation, Idaho Research Foundation, Inc.Inventors: Grant Norton, David McIIRoy
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Patent number: 7759287Abstract: A composition and method of storing and releasing fuel gas such as hydrogen, methane or natural gas is provided which utilizes lightly crosslinked high density polyethylene pellets. Fuel gas is stored by placing the pellets in a reaction chamber which is heated to a temperature slightly above the crystalline melting point of the pellets, followed by the introduction of fuel gas into the chamber. The fuel gas permeates the pellets and becomes contained therein upon cooling of the pellets under pressure. The fuel gas may be stored indefinitely in the pellets at ambient temperature. When release of the fuel gas is desired, the pellets are incrementally metered into a discharge chamber and are heated to a temperature above the crystalline melting point of the pellets under a pressure from about 5 to 200 psi such that the fuel gas is released from the pellets for use. The expended pellets may then be recycled for further fuel gas storage.Type: GrantFiled: June 9, 2008Date of Patent: July 20, 2010Inventor: Ival O. Salyer
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Patent number: 7740818Abstract: Disclosed herein is a transition metal-substituted hydrotalcite catalyst for removing nitrogen oxides using a storage-reduction method, in which a molar ratio of transition metal to magnesium is 0.2 or less, and a method of manufacturing a transition metal-substituted hydrotalcite catalyst for removing nitrogen oxides using a storage-reduction method, including the steps of preparing a hydrotalcite synthesis solution including transition metal precursors such that the molar ratio of transition metal to magnesium is 0.2 or less, and preferably 0.001 to 0.2; aging the synthesis solution; and hydrothermally treating the synthesis solution.Type: GrantFiled: April 17, 2009Date of Patent: June 22, 2010Assignee: Heesung Engelhard CorporationInventors: Hyun-Sik Han, Young-San Yoo, Gon Seo, Gi-Won Park
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Patent number: 7695704Abstract: A process for producing borazane from boron-nitrogen and boron-nitrogen-hydrogen containing BNH-waste products. The process includes reacting the BNH-waste products with a hydrogen halide, having the formula HX, wherein X is selected from the group consisting of F, Cl, Br, I, and combinations thereof, to form any of the following: a boron trihalide, having the formula BX3, an ammonium halide, having the formula NH4X, and hydrogen. The boron trihalide is then reacted with the hydrogen to form diborane, having the formula B2H6, and hydrogen halide. The ammonium halide is then converted to ammonia, having the formula NH3, and hydrogen halide. The diborane is then reacted with the ammonia to form borazane, having the formula BH3NH3.Type: GrantFiled: February 13, 2007Date of Patent: April 13, 2010Assignees: GM Global Technology Operations, Inc., Albert Ludwigs Universitat FreiburgInventors: Gert Wolf, Felix Baitalow, Gerhard Roewer, Steffen Hausdorf, Gerd Arnold, Ulrich Eberle, Dieter Hasenauer, Florian O. Mertens
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Patent number: 7678736Abstract: A composition for decontaminating a highly toxic material, wherein the composition includes a modified reactive sorbent comprising a reactive sorbent in combination with a sufficient amount of an organic solvent to saturate the pores of the reactive sorbent to yield a non-slurry, free flowing mixture. The present invention is further directed to a method for making such compositions and method for decontaminating surfaces using such compositions.Type: GrantFiled: August 29, 2006Date of Patent: March 16, 2010Assignee: The United States of America as represented by the Secretary of the ArmyInventor: George W. Wagner
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Patent number: 7666388Abstract: There is disclosed a multi-metal-nitrogen compound for use in hydrogen storage materials. The compound comprising two dissimilar metal atoms and a nitrogen atom. The multi-metal-nitrogen compound being capable of absorbing hydrogen at an absorption temperature and pressure, and of desorbing 60% or more by weight of said absorbed hydrogen at a desorption temperature and pressure.Type: GrantFiled: September 24, 2004Date of Patent: February 23, 2010Assignee: National University of SingaporeInventors: Ping Chen, Zhitao Xiong
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Patent number: 7648567Abstract: A hydrogen accumulation and storage material and a method of forming thereof are provided. The material comprises a plurality of various-sized and at least partially permeable to hydrogen microspheres bound together to form a rigid structure in which a diameter of the microspheres is reduced from a center of the structure towards edges of the structure. An outer surface of the rigid structure can be enveloped by a sealing layer, thereby closing interspherical spaces.Type: GrantFiled: October 27, 2005Date of Patent: January 19, 2010Assignees: C. EN. Limited, Aleman, Cordero, Galindo and Lee Trust (BVI) LimitedInventor: Alexander Chabak
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Patent number: 7648568Abstract: A gas storage system that stores a gas by cryo-adsorption on high surface materials. The gas storage system includes an outer container having insulated walls and a plurality of pressure vessels disposed therein. Each of the pressure vessels includes a high surface material. A manifold assembly distributes the gas under pressure to the pressure vessels where the gas is adsorbed by cryo-adsorption using the high surface materials. A cooling fluid is provided within voids between the pressure vessels to remove heat as the pressure vessels are being filled with the gas.Type: GrantFiled: January 11, 2007Date of Patent: January 19, 2010Assignee: GM Global Technology Operations, Inc.Inventors: Gerd Arnold, Ulrich Eberle, Dieter Hasenauer
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Patent number: 7553352Abstract: The present invention relates to a method of absorbing and/or storing gases, in which the gas to be stored is brought into contact with an electrochemically prepared metal-organic framework under conditions suitable for absorption of the gas, with absorption of the gas into the metal-organic framework occurring, and, if appropriate, the conditions are subsequently changed so that release of the stored gas occurs.Type: GrantFiled: November 24, 2004Date of Patent: June 30, 2009Assignee: BASF AktiengesellschaftInventors: Ulrich Mueller, Hermann Puetter, Michael Hesse, Markus Schubert, Helge Wessel, Juergen Huff, Marcus Guzmann
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Patent number: 7501008Abstract: The present invention relates to a gas storage and dispensing system, which comprising a carrier material for a target gas and multiple microtubular elements in contact with such carrier material. Each microtubular element comprises a tubular wall that defines a bore side and a shell side that are sealed from each other, preferably by one or more potting members. The carrier material is either at the bore sides or at the shell sides of the microtubular elements, and it can be either a solid sorbent material for the target gas, or a liquid carrier therefor. Such gas storage and dispensing system is particular useful for hydrogen storage, when the carrier material can be a hydrogen-sorbent that contains hydrogen gas, or liquefied hydrogen, or an organic hydrogen solution, or a metal hydride solution capable of generating hydrogen gas. Such microtubular elements can further be designed as microfibrous fuel cells, while each microfibrous fuel cell comprises a carrier material at its bore side.Type: GrantFiled: January 28, 2004Date of Patent: March 10, 2009Assignee: Microcell CorporationInventors: Ray R. Eshraghi, Michael W. Riley, Jung-Chou Lin
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Patent number: 7494530Abstract: A fluid storage and dispensing apparatus, including a cylindrical fluid storage and dispensing vessel having an interior volume, in which the interior volume contains a physical adsorbent for sorptively retaining a fluid thereon and from which the fluid is desorbable for dispensing from the vessel, and a valve head coupled to the vessel for dispensing desorbed fluid from the vessel. The physical adsorbent includes a monolithic carbon physical adsorbent that is characterized by at least one of the following characteristics: (a) a fill density measured for arsine gas at 25° C. and pressure of 650 torr that is greater than 400 grams arsine per liter of adsorbent; (b) at least 30% of overall porosity of the adsorbent including slit-shaped pores having a size in a range of from about 0.3 to about 0.72 nanometer, and at least 20% of the overall porosity including micropores of diameter <2 nanometers; and (c) having a bulk density of from about 0.80 to about 2.0 grams per cubic centimeter.Type: GrantFiled: April 11, 2005Date of Patent: February 24, 2009Assignee: Advanced Technology Materials, Inc.Inventor: J. Donald Carruthers
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Patent number: 7491263Abstract: A gas storage assembly that has an enclosure within which are disposed at least about 100 inorganic tubules are present for each cubic micron of volume of the enclosure. The assembly has a storage capacity of at least 20 grams of hydrogen per liter of volume of the enclosure.Type: GrantFiled: June 13, 2005Date of Patent: February 17, 2009Assignee: Technology Innovation, LLCInventors: Xingwu Wang, Howard J. Greenwald
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Patent number: 7431151Abstract: A hydrogen storage tank comprises a hydrogen adsorbent accommodated in a pressure-resistant container. The hydrogen adsorbent is capable of adsorbing and retaining hydrogen gas of a volume exceeding an occupation volume occupied by the hydrogen adsorbent itself. As for the hydrogen adsorbent, the amount of endothermic heat, which is generated when the adsorbed hydrogen gas is released, is not more than 16 kJ per mol of hydrogen molecules. The hydrogen adsorbent is prevented from leaking outside of the pressure-resistant container by a filter.Type: GrantFiled: September 14, 2005Date of Patent: October 7, 2008Assignee: Honda Motor Co., Ltd.Inventors: Mitsuya Hosoe, Izuru Kanoya, Ryogo Sakamoto, Terumi Furuta, Hajime Goto
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Patent number: 7425232Abstract: Disclosed in this specification is an apparatus for storing hydrogen which is comprised of molecular hydrogen, halloysite rods, and a supporting substrate wherein hydrogen is stored within the lumen of the halloysite rods.Type: GrantFiled: April 5, 2005Date of Patent: September 16, 2008Assignee: NaturalNano Research, Inc.Inventors: Xingwu Wang, Michael L. Weiner
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Patent number: 7416583Abstract: An appliance that uses a substantially carbon-free hydrogen is disclosed. The appliance includes a converter, a hydrogen storage container including a carbon-based nanostructured material, a charger, a discharger and, optionally, a controller is disclosed. The hydrogen storage container is capable of storing the substantially carbon-free hydrogen in a condensed state. In addition to the carbon-based nanostructured material, the container may include a metal capable of acting as both a seed for the formation of the nanostructured material and a facilitator for promoting the storage in the condensed state of the substantially carbon-free gaseous hydrogen provided to the storage container.Type: GrantFiled: October 17, 2003Date of Patent: August 26, 2008Assignee: General Electric CompanyInventor: Andrei Colibaba-Evulet
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Patent number: 7393393Abstract: A hydrogen storage and release material is provided in the form of a supportive host component that carries or contains a hydrogen absorbing guest material. Metal compounds, such as oxides, carbides, nitrides, or the like, are prepared to carry polyaromatic molecules that absorb hydrogen in conjugated double bonds. Examples of suitable guest-host materials include layers of vanadium oxide with interacted layers of polyaniline or polythiophene. Dopant elements, like nickel, in the host oxide can enhance hydrogen absorption and de-sorption in the host material.Type: GrantFiled: August 19, 2005Date of Patent: July 1, 2008Assignee: GM Global Technology Operations, Inc.Inventor: Gholam-Abbas Nazri
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Patent number: 7361213Abstract: A hybrid hydrogen storage composition includes a first phase and a second phase adsorbed on the first phase, the first phase including BN for storing hydrogen by physisorption and the second phase including a borazane-borazine system for storing hydrogen in combined form as a hydride.Type: GrantFiled: August 22, 2005Date of Patent: April 22, 2008Assignee: UT-Battelle, LLCInventors: Chaitanya K. Narula, J. Michael Simonson, Leon Maya, Robert T. Paine
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Patent number: 7348295Abstract: The present invention relates to new crystalline molecular sieve SSZ-74 prepared using a hexamethylene-1,6-bis-(N-methyl-N-pyrrolidinium) dication as a structure-directing agent, and its use in gas separations.Type: GrantFiled: December 21, 2006Date of Patent: March 25, 2008Assignee: Chevron CorporationInventors: Stacey I. Zones, Allen W. Burton, Jr.
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Patent number: 7309380Abstract: A container for uptaking, or storing, or releasing, or uptaking and storing, or uptaking and releasing, or storing and releasing, or uptaking, storing and releasing at least one gas, comprising a metal-organic framework material comprising pores and at least one metal ion and at least one at least bidentate organic compound which is bound to said metal ion, as well as to a fuel cell comprising said container, and to a method of using said container or said fuel cell for supplying power to power plants, cars, trucks, busses, cell phones, and laptops.Type: GrantFiled: June 30, 2003Date of Patent: December 18, 2007Assignees: BASF Aktiengesellschaft, The Regents of the University of MichiganInventors: Ulrich Müller, Michael Hesse, Reinhard Heβ, Rainer Senk, Markus Hölzle, Omar M. Yaghi
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Patent number: 7303736Abstract: A system for hydrogen storage comprising a porous nano-structured material with hydrogen absorbed on the surfaces of the porous nano-structured material. The system of hydrogen storage comprises absorbing hydrogen on the surfaces of a porous nano-structured semiconductor material.Type: GrantFiled: March 15, 2005Date of Patent: December 4, 2007Assignee: The Regents of the University of CaliforniaInventors: Andrew J. Williamson, Fernando A. Reboredo
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Patent number: 7220294Abstract: An organic compound capable of forming a hydrogen molecular compound such as a hydrogen clathrate is brought in contact with hydrogen gas in a pressurized state. It enables relatively light-weight and stable storage of hydrogen at or near the ordinary temperature and the ambient pressure and easy takeoff of the stored hydrogen.Type: GrantFiled: March 19, 2004Date of Patent: May 22, 2007Assignee: Kurita Water Industries Ltd.Inventor: Minoru Yagi
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Patent number: 7183336Abstract: Polymer particles are irradiated with radiation from a high energy source to increase the water or other fluid absorbency of the particles. Products manufactured using the activated particles include protective undergarments, bandages, kitty litter, and spill clean up materials.Type: GrantFiled: July 30, 2003Date of Patent: February 27, 2007Assignee: Super Absorbent CompanyInventors: Phillip Berlin, Mark Sinkinson
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Patent number: 7135057Abstract: A storage medium for gas molecules has a nanowire core and a number of organic molecules attached to the exterior surface of the nanowire. The organic molecules attached to the exterior of the nanowire are adapted to releasably hold gas molecules. Methods for making and using the invention, including the use of a silicon nanowire, are disclosed.Type: GrantFiled: April 16, 2003Date of Patent: November 14, 2006Assignee: Hewlett-Packard Development Company, L.P.Inventor: Pavel Kornilovich
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Patent number: 7094276Abstract: The present invention involves a carbon-based hydrogen storage material which includes a carbon material, exhibiting a specific surface area, being 1,000 m2/g or more, and a bulk density, being from 0.4 g/cm3 or more to 1 g/cm3 or less. The carbon-based hydrogen storage material is such that the hydrogen storage capacity per unit volume is large. The invention also provides for a hydrogen storage apparatus whose hydrogen storage capacity per unit volume is large. The hydrogen storage apparatus is constituted so as to include a container and a hydrogen absorbing material accommodated in the container, and the hydrogen absorbing material is arranged to include a porous carbon material whose specific surface area is 1,000 m2/g or more, and a hydrogen absorbing alloy.Type: GrantFiled: September 27, 2002Date of Patent: August 22, 2006Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Yoshitsugu Kojima, Yasuaki Kawai
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Patent number: 7048785Abstract: A fluid storage and delivery system utilizing a porous metal matrix that comprises at least one Group VIIIB metal therein. In one embodiment, the porous metal matrix forms a solid-phase metal adsorbent medium, with an average pore diameter of from about 0.5 nm to about 2 nm and a porosity of from about 10% to about 30%, which is particularly useful for sorptively storing and desorptively dispensing a low vapor pressure fluid, e.g., ClF3, HF, GeF4, Br2, etc. In another aspect, the porous metal matrix forms a solid-phase metal sorbent with an average pore diameter of from about 0.25 ?m to about 500 ?m and a porosity of from about 15% to about 95%, which can effectively immobilize low vapor pressure liquefied gas.Type: GrantFiled: July 1, 2003Date of Patent: May 23, 2006Assignee: Advanced Technology Materials, Inc.Inventors: Luping Wang, Doug Neugold
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Patent number: 7008896Abstract: The present invention is directed to a process for the preparation of crystalline anionic clay-containing bodies from sources comprising a trivalent metal source and a divalent metal source comprising the steps of: a) preparing a precursor mixture containing a liquid, a divalent metal source and/or a trivalent metal source, at least one of them being insoluble in the liquid; b) shaping the precursor mixture to obtain shaped bodies; c) optionally thermally treating the shaped bodies; and d) aging the shaped bodies to obtain crystalline anionic clay-containing bodies; with the proviso that if no divalent or trivalent metal source is present in the precursor mixture of step a), such source is added to the shaped bodies after shaping step b) and before aging step d); and with the further proviso that the combined use of an aluminium source as the trivalent metal source and a magnesium source as the divalent metal source is excluded.Type: GrantFiled: January 31, 2002Date of Patent: March 7, 2006Assignee: Akzo Nobel NVInventors: Dennis Stamires, William Jones, Paul O'Connor
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Patent number: 6929679Abstract: The present invention relates to the technical field of storing gas including methane and hydrogen, in particular to the fuel cell technology. In particulars it relates to a method of using a metallo-organic framework material comprising pores and at least one metal ion and at least one at least bidentate organic compound.Type: GrantFiled: February 1, 2002Date of Patent: August 16, 2005Assignees: BASF Aktiengesellschaft, The Regents of the University of MichiganInventors: Ulrich Müller, Klaus Harth, Markus Hölzle, Michael Hesse, Lisa Lobree, Wolfgang Harder, Omar M. Yaghi, Mohamed Eddaoudi
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Patent number: 6906003Abstract: A system and method for sorption and desorption of molecular gas contained by storage sites of graphite nano-filaments randomly disposed in three-dimensional reticulated aerogel.Type: GrantFiled: September 18, 2003Date of Patent: June 14, 2005Assignee: Enernext, LLCInventors: Ralph C. Struthers, David B. Chang, Reza Toossi, Sion Ahdout, Lijuan Li, Robert G. Palomba
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Patent number: 6867344Abstract: A personal care absorbent article, such as a sanitary pad or napkin, wound dressing, and the like having one or more layers of absorbent material treated with a red blood cell lysing agent and a gelling agent. The effect of combining a lysing agent that thins menses or other blood-containing bodily fluids with a gelling agent that thickens menses or other blood-containing bodily fluids is enhanced agglomeration and increased viscosity of the blood-containing bodily fluids that come in contact with the treated material.Type: GrantFiled: December 28, 2001Date of Patent: March 15, 2005Assignee: Kimberly-Clark Worldwide, Inc.Inventors: David Charles Potts, Brian Eric Lin, Cheryl Ann Mocadlo
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Patent number: 6660383Abstract: Carbon fiber including graphitized fiber is processed electrochemically in an acidic solution for a time sufficient to run a layer reaction such that the reaction extends to the inside of the fiber and thereafter, as required, heat-treated accurately at 100° C. or more to expand layer spacing to form multifibrous carbon fiber, with which hydrogen is brought into contact, adsorbing hydrogen in the inside of the multifibrous carbon fiber.Type: GrantFiled: January 22, 2001Date of Patent: December 9, 2003Assignee: Nippon Mitsubishi Oil CorporationInventors: Masahiro Toyoda, Yoshio Sohda, Yukinori Kude, Tsutomu Kihara, Osamu Katou
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Patent number: 6626981Abstract: A method for producing high capacity gas-storage microporous sorbents involves precursor carbonization under relatively severe heat-treatment conditions, normally followed by activation using a cyclic chemisorption-desorption process.Type: GrantFiled: July 6, 2001Date of Patent: September 30, 2003Assignee: Advanced Fuel Research, Inc.Inventors: Marek A. Wojtowicz, Michael A. Serio, Eric M. Suuberg
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Patent number: 6620225Abstract: The invention relates to a fluid storage and delivery system utilizing a porous metal matrix that comprises at least one Group VIII metal or Group IB metal therein. In one aspect of the invention, such porous metal matrix forms a solid-phase metal adsorbent medium, characterized by an average pore diameter of from about 0.5 nm to about 2.0 nm and a porosity of from about 10% to about 30%. Such solid-phase metal adsorbent medium is particularly useful for sorptively storing and desoprotively dispensing a low vapor pressure fluid, e.g., ClF3, HF, GeF4, Br2, etc. In another aspect of the invention, such porous metal matrix forms a solid-phase metal sorbent, characterized by an average pore diameter of from about 0.25 &mgr;m to about 500 &mgr;m and a porosity of from about 15% to about 95%, which can effectively immobilize low vapor pressure liquefied gas.Type: GrantFiled: January 10, 2002Date of Patent: September 16, 2003Assignee: Advanced Technology Materials, Inc.Inventors: Luping Wang, Doug Neugold
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Patent number: 6613126Abstract: A method for storing natural gas by adsorption which comprises separating an available natural gas in an infrastructure side (10) into a low carbon number component mainly containing methane and ethane and a high carbon number component mainly containing propane, butane and the like, and storing the low carbon number component by adsorption in a first adsorption tank (16) and storing the high carbon number component by adsorption in a second adsorption tank (18). The method can solve the problem that the high carbon number component condenses within a pore of an adsorbing agent and hence the adsorption of the carbon number component, the main component of natural gas, is inhibited, and thus improves the storage density. Accordingly, the method can be used for ensuring a high storage density also for an available natural gas. An adsorbing agent for use in the method is also disclosed.Type: GrantFiled: September 5, 2001Date of Patent: September 2, 2003Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kyoichi Tange, Tamio Shinozawa, Hiroshi Hasegawa, Kouetsu Hibino
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Publication number: 20030144145Abstract: Herein is disclosed an oxygen scavenging composition, comprising (i) an oxygen scavenging polymer comprising units having structure I: 1Type: ApplicationFiled: December 19, 2001Publication date: July 31, 2003Inventors: Hu Yang, Ta Yen Ching, Peter Kwan
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Publication number: 20030124936Abstract: A personal care absorbent article, such as a sanitary pad or napkin, wound dressing, and the like having one or more layers of absorbent material treated with a red blood cell lysing agent and a gelling agent. The effect of combining a lysing agent that thins menses or other blood-containing bodily fluids with a gelling agent that thickens menses or other blood-containing bodily fluids is enhanced agglomeration and increased viscosity of the blood-containing bodily fluids that come in contact with the treated material.Type: ApplicationFiled: December 28, 2001Publication date: July 3, 2003Inventors: David Charles Potts, Brian Eric Lin, Cheryl Ann Mocadlo
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Publication number: 20030113538Abstract: A channelized sorbent material comprises porous sorbent particles characterized by an average pore diameter. Each sorbent particle has at least one interior channel of an average transverse dimension (i.e. transverse diameter) that is at least ten times larger than the average pore diameter of the porous sorbent particle. The interior channel may constitute a single cylindrical through-bore in the sorbent particle, or alternatively, an array of intersecting or non-intersecting channels. The porous sorbent particles preferably comprise bead activated carbon particles. Such channelized sorbent material is particular useful as sorbent media in an adsorption-desorption apparatus for storage and dispensing of a sorbable fluid.Type: ApplicationFiled: December 17, 2001Publication date: June 19, 2003Inventors: Glenn M. Tom, Steven J. Hultquist
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Patent number: 6290753Abstract: In a method for storing hydrogen in a carbon material containing microstructures in the form of cones with cone angles being multiples of 60°, the carbon material is introduced in a reaction vessel which is evacuated while the carbon material is kept at a temperature of 295-800 K, after which pure hydrogen gas is introduced in the reaction vessel, the carbon material being exposed to a hydrogen gas pressure in the range of 300-7600 torr such that the hydrogen gas is absorbed in the carbon material, and after which the reaction vessel is left at the ambient temperature with the carbon material under a fixed hydrogen gas pressure. For use the hydrogen is released in the form of a gas from the carbon material either at ambient temperature or by heating the carbon material in the reaction vessel.Type: GrantFiled: September 22, 1999Date of Patent: September 18, 2001Assignee: Institutt for energiteknikkInventors: Arnulf Julius Maeland, Arne Torbjørn Skjeltorp
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Patent number: 6066592Abstract: A gas separator includes a porous substrate having fine pores opened on its surface and a metal for separating a gas, the porous substrate having fine pores having an average diameter of 0.1-3.0 .mu.m and a porosity of 25-45%, and the metal for separating a gas being filled into the pores in the porous substrate to close them. A gas separation film seldom exfoliates from the porous substrate, and the gas separator is excellent in durability in comparison with a conventional gas separator.Type: GrantFiled: July 3, 1997Date of Patent: May 23, 2000Assignee: NGK Insulators, Ltd.Inventors: Takayuki Kawae, Shinichi Kosaka, Shinji Nakamura
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Patent number: 5888925Abstract: The present invention is a hydrogen getter and method for formulating and using the getter. This getter effectively removes hydrogen gas typically present in many hermetically-sealed electronic applications where the presence of such gas would otherwise be harmful to the electronics. The getter is a non-organic composition, usable in a wide range of temperatures as compared to organic getters. Moreover, the getter is formulated to be used without the need for the presence of oxygen. The getter is comprised of effective amounts of an oxide of a platinum group metal, a desiccant, and a gas permeable binder which preferably is cured after composition in an oxygen-bearing environment at about 150 to about 205 degrees centigrade.Type: GrantFiled: February 20, 1998Date of Patent: March 30, 1999Assignee: AlliedSignal Inc.Inventors: Henry M. Smith, James R. Schicker
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Patent number: 5837741Abstract: A method of making a microporous carbon material which includes providing a precursor selected from the group consisting of crystalline salts of aromatic sulfonates and nonporous polymeric salts. Prior to carbonization, the precursor is treated by ion exchange or other conventional processes to introduce a metal such as iron, nickel and cobalt into the precursor. Heat treatment of such composite precursors in the temperature range of 350.degree. to 850.degree. C. in an inert oxygen free atmosphere for a sufficient time promotes thermally induced hydrogen abstraction and rearrangement of BSUs which result in the formation of a composite, carbonaceous microporous material which contains a metal component, and has a pore size distribution in the range of about 4-15 .ANG. A. The structural and storage characteristics of the microporous carbon materials are also disclosed.Type: GrantFiled: August 19, 1996Date of Patent: November 17, 1998Assignee: Syracuse UniversityInventors: James A. Schwarz, Karol Putyera, Teresa J. Bandosz, Jacek Jagiello, Kwabena A. G. Amankwah
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Patent number: 5385876Abstract: A highly microporous adsorbent material is formed as a composite of a natural or synthetic clay or clay-like mineral matrix intercalated with an active carbon. The mineral is prepared and selected to have a selected interlayer spacing between microcrystalline sheets. An organic polymeric precursor is contacted therewith to fill the matrix interstices. Then the precursor is polymerized and carbonized to yield the adsorbent material in which the carbon is intercalated into the mineral matrix. The mineral can be naturally occurring smectite or synthetic hydrotalcite.Type: GrantFiled: January 27, 1993Date of Patent: January 31, 1995Assignee: Syracuse UniversityInventors: James A. Schwarz, Karol Putyera, Jacek Jagiello, Teresa J. Bandosz
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Patent number: 5372619Abstract: A halogenated or sulfonated active carbon which has a high storage capacity for methane is provided from selected halogens in elemental form or solutions of such halogens or from solutions of sulfuric acid, fuming sulfuric acid, sulfur trioxide.Type: GrantFiled: October 14, 1992Date of Patent: December 13, 1994Assignee: Ucar Carbon Technology CorporationInventors: Ronald A. Greinke, Richard I. Bretz, Joseph T. Mullhaupt
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Patent number: 5292707Abstract: Natural gas is stored in a closed vessel under a pressure of about 1400 to 4500 kPa using a carbon molecular sieve adsorbent. The deliverable volume of natural gas from a vessel packed with carbon molecular sieve particles is increased by raising the density of the polymer precursor of the carbon molecular sieve through adjustment of the conditions for suspension polymerization of vinylidene chloride.Type: GrantFiled: November 25, 1992Date of Patent: March 8, 1994Assignee: Allied-Signal Inc.Inventors: Luis M. Aparicio, Scott R. Keenan, Li Wang
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Patent number: 5292706Abstract: Natural gas is stored in a closed vessel under a pressure of about 1400 to 4500 kPa using a carbon molecular sieve adsorbent. The deliverable volume of natural gas from a vessel packed with carbon molecular sieve particles is increased by impregnating a polymer precursor of the carbon molecular sieve with additional monomers and polymerizing the monomers before carbonizing the precursor.Type: GrantFiled: October 21, 1992Date of Patent: March 8, 1994Assignee: Allied-Signal Inc.Inventors: Chin-Hsiung Chang, Li Wang, Mark Kaiser