Solid Sorbent Patents (Class 95/900)
  • Patent number: 8926736
    Abstract: The present invention relates to reducible porous crystalline solids, constituted of a metal-organic framework (MOF), for the separation of mixtures of molecules having different unsaturation degrees and/or a different number of unsaturations with a selectivity that can be adjusted by controlling the reduction of the MOF. The MOF solids of the present invention, after reduction, have a strong affinity for molecules containing at least one unsaturation. They can be used in various separation processes, especially those relating to hydrocarbons.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: January 6, 2015
    Assignees: Centre National de la Recherche Scientifique -CNRS-, Universite de Caen-Basse Normandie, Universite de Versailles—Saint Quentin en Yvelines, Korea Research Institute of Chemical & Technology (KRICT)
    Inventors: Christian Serre, Alexandre Vimont, Philip Llewellyn, Jong-San Chang, Patricia Horcajada-Cortes, Gérard Ferey, Marco Daturi, Young-Kyu Hwang
  • Patent number: 8900348
    Abstract: The present invention relates to the use of palladium doped ZSM-5 to adsorb volatile organic compounds (VOCs) derived from organic matter, wherein the Si:Al ratio of the ZSM-5 is less than 5 or equal to 100:1, and wherein the palladium doped ZSM-5 is used in an environment comprising less than 10 vol % of oxygen.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: December 2, 2014
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Elizabeth Rowsell, Andrew William John Smith, Stephen Poulston
  • Patent number: 8900349
    Abstract: The present invention relates to an absorbent composition composed of an iron oxide and/or hydroxide, activated carbon, promoters and binders, in the form of extruded tablets or granules, capable of absorbing impurities from fluid streams in order to eliminate the impurities, mainly sulfur compounds, contained in these streams. The present invention also relates to the methods for obtaining the absorbents, and to the use thereof for eliminating impurities contained in liquid and gaseous streams.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: December 2, 2014
    Assignee: Clariant S.A.
    Inventors: Marco Antonio Logli, Valeria Perfoito Vicentini, Marcelo Brito de Azevedo Amaral
  • Patent number: 8876953
    Abstract: Methods and compositions useful for gas storage and separation are provided. More particularly, compositions and methods for CO2 storage and separation are provided comprising an open metal organic framework.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: November 4, 2014
    Assignee: The Regents of the University of California
    Inventors: Omar M. Yaghi, David Kyle Britt, Bo Wang
  • Patent number: 8834606
    Abstract: A flue gas adsorbent and method for making an adsorbent for mercury capture are disclosed. The adsorbent comprises an admixture of an adsorptive material and an additive that have been physically combined thereby eliminating the need for traditional impregnation. A method for removing mercury from a flue gas stream is also disclosed.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: September 16, 2014
    Assignee: Calgon Carbon Corporation
    Inventor: Nicholas R. Pollack
  • Patent number: 8753434
    Abstract: Filter media that includes activated carbon particulates and zinc oxide particles disposed on surfaces of the activated carbon particulates. The zinc oxide particles have an average crystallite dimension that is not greater than about 50 nm.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: June 17, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Lisa M. Croll, Jeffrey R. Dahn, Jock W. H. Smith, Jennifer V. Romero
  • Patent number: 8741030
    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: Grant
    Filed: February 24, 2011
    Date of Patent: June 3, 2014
    Assignee: Kuraray Co., Ltd.
    Inventors: Yasutaka Inubushi, Chikako Ikeda, Koichi Kanehira
  • Patent number: 8734576
    Abstract: Embodiments of the invention relate to a composite hydrogen storage material comprising active material particles and a binder, wherein the binder immobilizes the active material particles sufficient to maintain relative spatial relationships between the active material particles.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: May 27, 2014
    Assignee: Societe BIC
    Inventor: Joerg Zimmermann
  • Patent number: 8709134
    Abstract: This disclosure relates to porous frameworks for ethylene oxide separation and recovery.
    Type: Grant
    Filed: February 1, 2010
    Date of Patent: April 29, 2014
    Assignees: The Regents of the University of California, BASF SE
    Inventors: Omar M. Yaghi, David Kyle Britt, Alexander U. Czaja
  • Patent number: 8623122
    Abstract: A method for processing a CO2-containing gas in order to reduce the carbon dioxide content thereof, includes contacting the gas with a compound of at least one rare earth element, whereby the carbon dioxide is adsorbed onto the compound and a carbon dioxide-depleted gas is thus obtained; such compound is more particularly an oxide, and the rare earth element is particularly selected from among cerium, lanthanum or praseodymium.
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: January 7, 2014
    Assignee: Rhodia Operations
    Inventors: Virginie Harle, Gérard Mignani
  • Patent number: 8603225
    Abstract: The present invention relates to a porous metal-organic framework material comprising a bidentate organic compound bound by coordination to a metal ion, the metal ion being AlIII and the bidentate organic compound being 2,6-naphthalenedicarboxylate, wherein the X-ray diffractogram (XRD) of the framework material has a first reflection in the range from 6.5°<2?<7.5° and a second reflection in the range from 13.8°<2?<15.0°, the area of the first reflection being greatest in relation to the area of all reflections in the range from 2°<2?<70° and the area of the second reflection being second greatest, and the sum of the areas of the first and second reflections giving at least 50% in relation to the total area of all reflections in the range from 2°<2?<70°. The invention further relates to shaped bodies comprising such a framework material, processes for production of the framework material and also to the use of the framework material or of the proposed shaped body.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: December 10, 2013
    Assignee: BASF SE
    Inventors: Markus Schubert, Ulrich Mueller, Stefan Marx, Christoph Kiener, James Reuben Brown, Gerhard Krennrich
  • Patent number: 8585808
    Abstract: Filter media that includes activated carbon particulates and zinc oxide particles disposed on surfaces of the activated carbon particulates. The zinc oxide particles have an average crystallite dimension that is not greater than about 50 nm.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: November 19, 2013
    Assignees: 3M Innovative Properties Company
    Inventors: Lisa M. Croll, Jeffrey R. Dahn, Jock W. H. Smith, Jennifer V. Romero
  • Patent number: 8551216
    Abstract: Systems and methods for treating a fluid with a body are disclosed. Various aspects involve treating a fluid with a porous body. In select embodiments, a body comprises ash particles, and the ash particles used to form the body may be selected based on their providing one or more desired properties for a given treatment. Various bodies provide for the reaction and/or removal of a substance in a fluid, often using a porous body comprised of ash particles. Computer-operable methods for matching a source material to an application are disclosed. Certain aspects feature a porous body comprised of ash particles, the ash particles have a particle size distribution and interparticle connectivity that creates a plurality of pores having a pore size distribution and pore connectivity, and the pore size distribution and pore connectivity are such that a first fluid may substantially penetrate the pores.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: October 8, 2013
    Assignee: Errcive, Inc.
    Inventors: Charles E. Ramberg, Stephen A. Dynan, Jack A. Shindle
  • Patent number: 8540802
    Abstract: The disclosure relates generally to a gas-separation system for separating one or more components from a multi-component gas using Zeolitic imidazolate or imidazolate-derived framework.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: September 24, 2013
    Assignee: The Regents of the University of California
    Inventors: Omar M. Yaghi, Hideki Hayashi, Rahul Banerjee
  • Patent number: 8480791
    Abstract: Sorbents for removal of mercury and other pollutants from gas streams, such as a flue gas stream from coal-fired utility plants, and methods for their manufacture and use are disclosed. The methods include injecting a sorbent consisting essentially of recovered and separated fluid cracking catalyst particles into a flue gas stream.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: July 9, 2013
    Assignee: BASF Corporation
    Inventors: Xiaolin D. Yang, David M. Stockwell, Pascaline H. Tran, Lawrence Shore
  • Patent number: 8409330
    Abstract: A flue gas adsorbent and method for making an adsorbent for mercury capture are disclosed. The adsorbent comprises an admixture of an adsorptive material and an additive that have been physically combined thereby eliminating the need for traditional impregnation. A method for removing mercury from a flue gas stream is also disclosed.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: April 2, 2013
    Assignee: Calgon Carbon Corporation
    Inventor: Nicholas R. Pollack
  • Patent number: 8388735
    Abstract: An adsorbent media composition has a finished media lithium-exchanged zeolite X (LiX) with a finished Li content in a range from 96% to 83%, based on the total cation equivalents in the LiX. The adsorbent media composition is obtained from a slurry comprising water, a LiX precursor having a pre-media production Li content that is greater than the finished media LiX Li content, and another media component material, such as fibers. The water used to produced the media has a specific conductance in a range from 2.2 ?Siemens/cm to 150 ?Siemens/cm. The finished media LiX has a monovalent cation (Na, K, Rb, Cs and combinations thereof) in a range from 0.05% to 3%, based on the total equivalents of exchangeable cations in the finished media LiX.
    Type: Grant
    Filed: September 1, 2009
    Date of Patent: March 5, 2013
    Assignee: UOP LLC
    Inventors: Robert L. Bedard, Evgeny T. Kolev
  • Patent number: 8361200
    Abstract: The present invention provides methods and systems for carbon dioxide, hydrogen sulfide and other acid gases capture via adsorption at high pressure using mesoporous materials.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: January 29, 2013
    Inventors: Abdelhamid Sayari, Youssef Belmabkhout
  • Patent number: 8361203
    Abstract: A carbon porous body (ICY) includes a carbon skeleton containing carbon atoms, wherein the carbon skeleton includes carbon main sections and carbon linking sections mutually linking the carbon main sections; a distance D1 between adjacent carbon main sections and a distance D2 between adjacent carbon linking sections satisfy the relationship of D1<D2; the carbon main sections are arranged three-dimensionally, regularly and symmetrically; and a specific surface area of the carbon porous body is not less than 1,300 m2/g and/or the pore capacity of the carbon porous body is not less than 1.5 cm3/g.
    Type: Grant
    Filed: March 22, 2012
    Date of Patent: January 29, 2013
    Assignee: National Institute for Materials Science
    Inventors: Ajayan Vinu, Katsuhiko Ariga, Masahiko Miyahara, Toshiyuki Mori
  • Patent number: 8328908
    Abstract: The invention provides an apparatus and methods for removing heavy metals and heavy metal-containing compounds from fluid streams. The invention also provides new uses and methods for removing heavy metals and heavy metal-containing compounds from a natural gas stream, or a gas stream produced during the combustion or gasification of a fossil fuel, such as coal or petroleum fuels or oil.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: December 11, 2012
    Assignee: University of Nottingham
    Inventors: Colin Edward Snape, Cheng-gong Sun, Janos Lakatos, Ron Earl Perry
  • Patent number: 8308848
    Abstract: Gas desulfurization sorbents and methods using them for removal of sulfur from gas streams, particularly at high temperatures ranging from 500 to 1000° C. The sorbents and methods are of particular application to produce a sulfur-clean feed from reformate gas generated from readily available transportation fuels containing sulfur. Sorbents of the invention can reduce the sulfur concentration in reformate gas to parts per billion on volume basis (ppbv) levels over a large range of temperatures. Sorbent materials of this invention comprise a nickel phase dispersed on a particulate support or a monolith support. The support can be a high surface area support with surface area of 100 m2/g or higher. The invention also provides systems for desulfurizing reformate gas and systems for providing a desulfurized gas to a fuel cell, particularly a solid oxide fuel cell.
    Type: Grant
    Filed: November 27, 2009
    Date of Patent: November 13, 2012
    Assignee: TDA Research, Inc.
    Inventors: Gokhan Alptekin, Margarita DuBovik, Ambalavanan Jayaraman
  • Patent number: 8262775
    Abstract: Disclosed are tetratopic carboxylic acid phenyl for use in metal-organic framework compounds. These compounds are useful in catalysis, gas storage, sensing, biological imaging, drug delivery and gas adsorption separation.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: September 11, 2012
    Assignee: Northwestern University
    Inventors: Omar K. Farha, Joseph T. Hupp
  • Patent number: 8147588
    Abstract: An improved adsorbent useful in removing contaminants from various hydrocarbon streams comprises a zeolite, an alumina and an added metal component provided in the adsorbent by initially contacting primarily the zeolite with the added metal. In a specific application, an adsorbent comprising sodium-impregnated zeolite Y and alumina is used to purify an ethylene stream in order to remove CO2, H2S, methanol, and other S- and O-containing compounds.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: April 3, 2012
    Assignee: BASF Corporation
    Inventors: William Dolan, Barry Speronello, Alfonse Maglio, Dennis Reinertsen, Dana Rehms Mooney
  • Patent number: 8114808
    Abstract: A sorbent for the capture of carbon dioxide from a gas stream is provided, the sorbent containing calcium oxide (CaO) and at least one refractory dopant having a Tammann temperature greater than about 530° C., wherein the refractory dopant enhances resistance to sintering, thereby conserving performance of the sorbent at temperatures of at least about 530° C. Also provided are doped CaO sorbents for the capture of carbon dioxide in the presence of SO2.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: February 14, 2012
    Assignee: University of Cincinnati
    Inventors: Panagiotis G. Smirniotis, Hong Lu
  • Patent number: 8057576
    Abstract: A flue gas adsorbent and method for making an adsorbent for mercury capture are disclosed. The adsorbent comprises an admixture of an adsorptive material and an additive that have been physically combined thereby eliminating the need for traditional impregnation. A method for removing mercury from a flue gas stream is also disclosed.
    Type: Grant
    Filed: June 10, 2008
    Date of Patent: November 15, 2011
    Assignee: Calgon Carbon Corporation
    Inventor: Nicholas R. Pollack
  • Patent number: 7955416
    Abstract: A method of storing and dispensing a fluid includes providing a vessel configured for selective dispensing of the fluid therefrom. A polymerized polymeric material is provided within the vessel. The fluid is contacted with the polymerized polymeric material for take-up of the fluid by the polymerized polymeric material. The fluid is released from the polymerized polymeric material and dispensed from the vessel.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: June 7, 2011
    Assignee: Matheson Tri-Gas, Inc.
    Inventors: Carrie L. Wyse, Robert Torres, Andrew R. Millward
  • Patent number: 7928033
    Abstract: The present invention relates to a catalyst for reducing mercury, which comprises a reagent comprising any of the sulfites of potassium, sodium, calcium and magnesium, or any of the phosphates thereof, or a combination of them, as a main reagent of a catalyst component. And the present invention relates to the catalyst for reducing mercury, wherein the catalyst component is mixed with a different salt as an agent for inhibiting crystallization of the catalyst component.
    Type: Grant
    Filed: March 15, 2007
    Date of Patent: April 19, 2011
    Assignees: Horiba, Ltd., Nippon Instruments Corporation
    Inventors: Shigeyuki Akiyama, Junji Kato, Fujio Koga, Koji Ishikawa
  • Patent number: 7862647
    Abstract: A method of separating a mixture of carbon dioxiode and hydrocarbon gas using a mixed-ligand, metal-organic framework (MOF) material having metal ions coordinated to carboxylate ligands and pyridyl ligands.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: January 4, 2011
    Assignee: Northwestern University
    Inventors: Joseph T. Hupp, Karen L. Mulfort, Randall Q. Snurr, Youn-Sang Bae
  • Patent number: 7850766
    Abstract: Systems and methods are provided for substantially reducing undesired cumulative effects by preferentially heating the active particles. By preferentially heating the active particles, the active particles are “cleaned” of substances that may reduce or negate particle activity. In addition, preferential heating may reduce active particle adsorption of binder.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: December 14, 2010
    Assignee: Cocona, Inc.
    Inventor: Gregory W. Haggquist
  • Patent number: 7842125
    Abstract: Disclosed herein are a process for the refinement of nitrogen trifluoride gas and an adsorbent used therein. A nitrogen trifluoride (NF3) gas including carbon tetrafluoride (CF4) as an impurity is permeated into a bed of the zeolite 3 A, 4A or 5 A which is ion exchanged with alkali earth metal and is thermally treated at 150 to 600° C. for 0.5 to 100 hours so as to selectively adsorb nitrogen trifluoride onto the bed, followed by the desorption of the nitrogen trifluoride therefrom.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: November 30, 2010
    Assignee: Hyosung Corporation
    Inventors: Yong-Chul Park, Woo-Sik Jeong, Kwang-Chul Hyun, Jang-Won Lee, Ik-Hyeon Kwon
  • Patent number: 7824473
    Abstract: 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: Grant
    Filed: July 25, 2008
    Date of Patent: November 2, 2010
    Assignee: Northwestern University
    Inventors: Chad A. Mirkin, Joseph T. Hupp, Omar K. Farha, Alexander M. Spokoyny, Karen L. Mulfort
  • Patent number: 7780763
    Abstract: A method of desorbing a volatile component from a spent adsorbent is disclosed, which includes flowing a stream of supercritical carbon dioxide through a rotating packed bed of the spent adsorbent; and collecting an effluent from the rotating packed bed, which contains supercritical carbon dioxide and the volatile component entrained therein. In one embodiment of the present invention a spent activated carbon from a process for recovering 2,2,3,3-tetrafluro-1-propanol from a gas stream containing 2,2,3,3-tetrafluro-1-propanol is regenerated by flowing a stream of supercritical carbon dioxide through a rotating packed bed of the spent activated carbon.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: August 24, 2010
    Inventors: Chung-Sung Tan, Pei-Lun Lee
  • Patent number: 7776138
    Abstract: A process for the removal of contaminants from a gas stream is disclosed. A gas stream is contacted with a chlorine-containing compound to form a mixed gas stream. The mixed gas stream is then contacted with a sorbent in a sorption zone to produce a product gas stream and a sulfur laden sorbent, wherein the sorbent comprises zinc and a promoter metal.
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: August 17, 2010
    Assignee: ConocoPhillips Company
    Inventors: Roland Schmidt, Robert W. Morton
  • Patent number: 7763566
    Abstract: Toxic substances such as heavy metals are extracted from a medium using a sorbent composition. The composition is derived by sulfidation of red mud, which contains hydrated ferric oxides derived from the Bayer processing of bauxite ores. Exemplary sulfidizing compounds are H2S, Na2S, K2S, (NH4)2S, and CaSx. The sulfur content typically is from about 0.2 to about 10% above the residual sulfur in the red mud. Sulfidized red mud is an improved sorbent compared to red mud for most of the heavy metals tested (Hg, Cr, Pb, Cu, Zn, Cd, Se, Th, and U). Unlike red mud, sulfidized red mud does not leach naturally contained metals. Sulfidized red mud also prevents leaching of metals when mixed with red mud. Mixtures of sulfidized red mud and red mud are more effective for sorbing other ions, such as As, Co, Mn, and Sr, than sulfidized red mud alone.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: July 27, 2010
    Assignee: J.I. Enterprises, Inc.
    Inventor: Joseph Iannicelli
  • Patent number: 7753992
    Abstract: Sorbents for removal of mercury and other pollutants from gas streams, such as a flue gas stream from coal-fired utility plants, and methods for their manufacture and use are disclosed. The methods include injecting fluid cracking catalyst particles into a flue gas stream.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: July 13, 2010
    Assignee: BASF Corporation
    Inventors: Xiaolin D. Yang, David M. Stockwell, Pascaline H. Tran, Lawrence Shore
  • Patent number: 7637986
    Abstract: Disclosed herein are a process for the refinement of nitrogen trifluoride gas and an adsorbent therefor. A nitrogen trifluoride (NF3) gas including carbon tetrafluoride (CF4) as an impurity is permeated into a bed of zeolite 3A, 4A or 5A which undergoes ion exchange and impregnation with alkali earth metal and is thermally treated at 150 to 600° C. for 0.5 to 100 hours so as to be able to selectively adsorb nitrogen trifluoride onto the bed, followed by the desorption of the nitrogen trifluoride therefrom.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: December 29, 2009
    Assignee: Hyosung Corporation
    Inventors: Yong-Chul Park, Woo-Sik Jeong, Kwang-Chul Hyun, Jang-Won Lee, Ik-Hyeon Kwon
  • Patent number: 7625430
    Abstract: The present invention concerns a process for capturing organosiliceous complexes in the gaseous or liquid phase on a solid containing at least 80% by weight of alumina after calcining at 1000° C. The alumina has a total pore volume of more than 30 ml/100 g, a fraction of the pore volume in pores with a diameter of 70 ? or more of more than 10 ml/100 g and a specific surface area of more than 10 m2/g.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: December 1, 2009
    Assignee: IFP
    Inventor: Christophe Nedez
  • Patent number: 7597745
    Abstract: A porous filter medium forms a filter or liner for extracting hydrocarbons from vapors emitted from a motorized vehicle, device or appliance fuel tank. The filter medium is a polymer network of a foam, nonwoven or collection of particles and has fine pore size and a butane working capacity (W/W %) of 4.0 percent or higher.
    Type: Grant
    Filed: April 3, 2006
    Date of Patent: October 6, 2009
    Assignee: Foamex Innovations Operating Company
    Inventors: Jeffrey I. Lebowitz, Joseph W. Lovette, Chiu Y. Chan
  • Patent number: 7597744
    Abstract: Use of molecular sieves to reduce the amount of trifluoromethane (HFC-23) present in a mixture of HFC-23 with other materials, particularly from mixtures containing HFC-23 and trifluoroiodomethane (CF3I).
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: October 6, 2009
    Assignee: Honeywell International Inc.
    Inventors: Raymond H. Thomas, Rajiv R. Singh, Thomas W. Morris, Roy P. Robinson
  • Patent number: 7594957
    Abstract: An oxygen-absorbing composition including iron and a soluble tartrate. A method of absorbing oxygen from a closed environment including the steps of providing an oxygen-absorbing composition containing iron and a tartrate, injecting water into the composition, and placing the composition into the closed environment. An oxygen-absorbing packet containing iron and a tartrate. All of the foregoing-mentioned compositions preferably include an electrolyte. The tartrates may be selected from the group which may include solium acid tartrate, potassium acid tartrate, potassium sodium tartrate tetrahydrate and sodium tartrate dihydrate, but are not limited thereto.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: September 29, 2009
    Assignee: Multisorb Technologies, Inc.
    Inventor: George E. McKedy
  • Patent number: 7553352
    Abstract: 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: Grant
    Filed: November 24, 2004
    Date of Patent: June 30, 2009
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrich Mueller, Hermann Puetter, Michael Hesse, Markus Schubert, Helge Wessel, Juergen Huff, Marcus Guzmann
  • Patent number: 7524359
    Abstract: Methods and apparatus for purifying gases having organic impurities, including the use of granulated porous glass. The method of the invention includes the following steps. An impure gas comprising a first gas and an organic compound is provided. A packed bed of granulated porous glass is provided. The impure gas is allowed to flow into the packed bed, thereby preferentially adsorbing at least some of the organic compound on the granulated porous glass to yield a purified gas having a concentration of the organic compound that is lower than that of the impure gas. The purified gas is allowed to flow out of the packed bed.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: April 28, 2009
    Assignee: American Air Liquide, Inc.
    Inventor: Frederick W. Giacobbe
  • Patent number: 7455706
    Abstract: A filter system including a method for self cleaning the filter system of an electronic equipment enclosure where air flow is monitored either by monitoring fan performance of air flow velocity through the enclosure. The system includes two filters elements, an upstream ASHRAE or HEPA filter element to block particulate matter and a downstream PTFE filter element to block water vapor. The ASHRAE or HEPA filter element is relatively inexpensive and easy to clean. The PTFE filter element is more expensive and difficult to clean. Thus, the cheaper filter is used to protect the more expensive filter from contaminants and to increase its useful life.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: November 25, 2008
    Assignee: Emerson Network Power, Energy Systems, North America, Inc.
    Inventors: Steven R. Latham, Marvin P. Garcia, Michael R. Cosley
  • Patent number: 7442232
    Abstract: Adsorbents and methods of use thereof are provided. One representative, among others, includes an adsorbent having an alkali metal promoted, mixed trivalent layered double hydroxide (LDH) composition. When the mixed trivalent layered double hydroxide (LDH) composition is heated to a temperature ranging from about 300° C. to 450° C., an the adsorbent having an adsorption capacity of at least 0.8 millimoles of CO2 adsorbed per gram of adsorbent is formed.
    Type: Grant
    Filed: June 19, 2003
    Date of Patent: October 28, 2008
    Assignee: Georgia Tech Research Corporation
    Inventors: Mark G. White, Alexei V Iretski, Scott Jeffrey Weigel, Robert Ling Chiang, Jeffrey Richard Brzozowski
  • Patent number: 7431900
    Abstract: A hydrogen peroxide vapor generation unit (10) receives hydrogen peroxide and water solution at an interface (20) and interconnects with an air dryer (14) by way of nipples (72, 92). In one embodiment, the dryer includes a clamping assembly (42) which is latched (74, 94) with the nipples and which receives a disposable desiccant cartridge (40). In an alternate embodiment, a reusable desiccant cartridge (40?) is connected directly to the nipples (72, 92). When the desiccant cartridge (40?) is saturated, it is removed and placed in a regenerator unit (120). A regenerated cartridge is installed in its place.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: October 7, 2008
    Assignee: Steris Inc
    Inventors: Aaron L. Hill, Arthur T. Nagare, Frank E. Dougherty, Stanley M. Voyten
  • Patent number: 7160360
    Abstract: Purification material for removing a contaminant from an impure hydride gas comprising an adsorbent comprising a reduced metal oxide on a porous support and a desiccant. The porous support may be selected from the group consisting of activated carbon, alumina, silica, zeolite, silica alumina, titania, zirconia, and combinations thereof. The reduced metal oxide may comprise one or more metals selected from the group consisting of Group I alkali metals (lithium, sodium, potassium, rubidium, and cesium), Group II alkaline earth metals (magnesium, calcium, strontium, and barium), and transition metals (manganese, nickel, zinc, iron, molybdenum, tungsten, titanium, vanadium, cobalt, and rhodium). The desiccant may be selected from the group consisting of hygroscopic metal salts, zeolites, single metal oxides, mixed metal oxides, and combinations thereof.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: January 9, 2007
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Dingjun Wu, Timothy Christopher Golden, Chun Christine Dong, Paula Jean Battavio
  • Patent number: 7150778
    Abstract: The present invention is a system and method for improving the useful life of sorbent beds, such as activated carbon filter beds. It is known that breakthrough in carbon filter beds first occurs at the low gas velocity regions of the filter bed, i.e., at the filter's edges. A recirculation jacket filter system diverts already filtered air from the downstream side of the filter bed toward the peripheral region of the upstream side of the filter bed so that contaminants near the filter's edges are reduced and filter life is improved.
    Type: Grant
    Filed: April 26, 2004
    Date of Patent: December 19, 2006
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Lyle D. Dauber, David R. Peterson, Carl A. Betten, Thomas S. Thoner, D. Michael Reid
  • Patent number: 7144445
    Abstract: Process for purifying or separating a gas or gas mixture using a monolithic adsorbent for the separation or purification of gases or gas mixtures, having a cellular structure with open porosity in the form of a solid foam permeable to the gas molecules. The gas phase of the adsorbent possesses an essentially convex structure and the solid phase an essentially concave structure. The solid foam has a density of greater than or equal to 500 kg/m3 and an open porosity of between 20 and 60%. The gas is air or an H2/CO mixture. The process is of the VSA, PSA or TSA type. This process can be used in particular in OBOGS-type systems to supply passengers of the vehicle or a device participating in the traction of the vehicle and/or in its electrical supply, in particular a fuel cell. This process can also be used in medical oxygen concentrators.
    Type: Grant
    Filed: February 7, 2003
    Date of Patent: December 5, 2006
    Assignee: L'Air Liquide, Société Anonyme à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procédés Georges Claude
    Inventors: Vincent Gueret, Serge Moreau
  • Patent number: 7141093
    Abstract: A method of scrubbing a gas stream with re-circulated kiln dust when the kiln dust is hydrated to form a sorbent. The sorbent is re-circulated with un-reacted flue gas stream for scrubbing.
    Type: Grant
    Filed: July 21, 2004
    Date of Patent: November 28, 2006
    Assignee: Graymont QC Inc.
    Inventor: Alain Charette
  • Patent number: 7060653
    Abstract: The gas storage method comprises a step of keeping a gas to be stored and an adsorbent in a vessel at a low temperature below the liquefaction temperature of the gas to be stored so that the gas to be stored is adsorbed onto the adsorbent in a liquefied state, a step of introducing into the vessel kept at the low temperature a gaseous or liquid medium with a freezing temperature that is higher than the above-mentioned liquefaction temperature of the gas to be stored, for freezing of the medium, so that the gas to be stored which has been adsorbed onto the adsorbent in a liquefied state is encapsulated by the medium which has been frozen, and a step of keeping the vessel at a temperature higher than the liquefaction temperature and below the freezing temperature.
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: June 13, 2006
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Naoki Nakamura