Water Sorbed Patents (Class 95/117)
  • Patent number: 8157893
    Abstract: One exemplary embodiment can be an apparatus for isomerizing a hydrocarbon stream rich in a C4 hydrocarbon and/or at least one of a C5 and C6 hydrocarbon. The apparatus can include: a vessel containing a fluid including at least one reactant; a fluid transfer device receiving the fluid including at least one reactant from the vessel; at least one drier receiving the fluid including at least one reactant from the fluid transfer device; and a reactor communicating with the at least one drier to receive the fluid including at least one reactant. In addition, the at least one drier may communicate with the vessel at least by sending the fluid including at least one reactant or the regenerant through a fluid tapering device for at least one of regulating the flow and reducing the pressure of the regenerant to the vessel.
    Type: Grant
    Filed: June 16, 2009
    Date of Patent: April 17, 2012
    Assignee: UOP LLC
    Inventors: David J. Shecterle, Bryan S. Garney, James M. Shawley, Jocelyn C. Daguio
  • Patent number: 8147591
    Abstract: Systems and methods for producing an ozone destructor are disclosed herein. Generally, these systems and methods include an ozone destructor that has a housing defining an air passage duct. In some cases, this air passage duct includes a first chamber and a second chamber that are arranged so that air is able to flow into the first chamber, through the second chamber, and out of the destructor. In some cases, an air drying mechanism is disposed in the first and/or the second chamber. Additionally, in some cases, the ozone destructor further includes multiple mechanisms that reduce ozone to oxygen. In light of these features, the ozone destructor is capable of incrementally drying and reducing air and ozone, respectively, as they pass through the first chamber and the second chamber.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: April 3, 2012
    Inventor: Thomas D. Gillette
  • Patent number: 8142549
    Abstract: A method of reducing moisture in a fluorine-containing gas is described. The method may include the steps of providing a purifier material that includes elemental carbon, and flowing the unpurified fluorine-containing gas having an unpurified moisture concentration over or through the carbon-based purifier material. At least a portion of the moisture is captured in the purifier material so that a purified fluorine-containing gas that emerges downstream of the purifier material has a reduced moisture concentration that is about 50% or less of the unpurified moisture concentration.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: March 27, 2012
    Assignee: Matheson Tri-Gas, Inc.
    Inventors: Andrew Millward, Joseph V. Vininski, Robert Torres, Jr., Tadaharu Wantanbe, Carrie L. Wyse, Mark Raynor, Dan Davia, Praveen Jha
  • Patent number: 8137438
    Abstract: Embodiments of the invention provide an electronic device which may include an interior compartment housing at least one electronic component that may be reactive to target impurities. The electronic component may include at least a cathode and an anode. A purifier material may be interspersed within a conducting polymer layer between the cathode and the anode. The purifier material may decrease target impurities within the interior compartment of the electronic device from a first level to a second level.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: March 20, 2012
    Assignee: Matheson Tri-Gas
    Inventors: Robert Torres, Jr., Tadaharu Watanabe, Joseph V. Vininski
  • Patent number: 8116029
    Abstract: A filter material for use in an electronic enclosure. The filter material includes a mixture of carbon and calcium chloride. In some embodiments, the filter material further includes a polyolefin binder, and optionally other ingredients. In one embodiment, the filter material includes 5 to 15 percent calcium chloride, and in another embodiment, the filter material includes 10 percent calcium chloride.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: February 14, 2012
    Assignee: Donaldson Company, Inc.
    Inventor: Stanley B. Miller, III
  • Patent number: 8070854
    Abstract: In a method for removing moisture from an optical system at high altitude, the improvement comprises using the difference in flow resistance between the desiccant path and the optical cavity path to enable airflow through the desiccant unit and not through the optical path.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: December 6, 2011
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Kazimierz T. Grzeslak, Jason Stockwell
  • Patent number: 8062613
    Abstract: An apparatus and process for isomerizing a hydrocarbon stream rich in a C4 hydrocarbon and/or at least one of a C5 and C6 hydrocarbon which includes a first drier and a second drier; and a reaction zone communicating with at least the first drier. The first drier operates at a first condition to dry the reactant and the second drier operates at a second condition during regeneration. The used regenerant remaining in the second drier after regeneration can (1) pass through a vent-to-flare assembly in a batch-wise manner; (2) pass through a downflow-depressure-to-low-pressure-device assembly in a batch-wise manner; (3) pass through a cross-over piping purge assembly to minimize upsets in the reaction and fractionation zones when the second drier is placed back in operation; or any combination of (1) (2) and/or (3) to minimize upsets in the reaction and fractionation zones when the second drier is placed back in operation.
    Type: Grant
    Filed: November 17, 2009
    Date of Patent: November 22, 2011
    Assignee: UOP LLC
    Inventors: Bryan S. Garney, Jocelyn C. Daguio, Kurt A. Detrick, David J. Shecterle, John M. Krupczak, Andrew D. Mezera, Douglas A. Becci
  • Publication number: 20110259828
    Abstract: The present invention relates to an agglomerated zeolite adsorbent containing at least one polymer matrix that is greatly laden with at least one zeolite adsorbent. The invention also relates to the method for preparing such an adsorbent and to the uses thereof, particularly as an adsorbent of moisture, odors, volatile organic components, and the like.
    Type: Application
    Filed: December 3, 2009
    Publication date: October 27, 2011
    Inventors: Ludivine Bouvier, Serge Nicolas, Alice Medevielle, Patrick Alex
  • Patent number: 8043414
    Abstract: A method and an apparatus for desorption and a dehumidifier are provided in the present invention, in which an electrical potential is applied to electrodes disposed on both ends of an absorbing material so as to desorb the substances absorbed within the absorbing material whereby the absorbing material is capable of being maintained for cycling the absorbing operation. By means of the method and the apparatus of the present invention, the desorbing efficiency can be enhanced and the energy consumption can be reduced during desorption.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: October 25, 2011
    Assignee: Industrial Technology Research Institute
    Inventors: Ming-Shan Jeng, Ming-Shiann Shih, Jau-Chyn Huang, Yu-Li Lin, Ya-Wen Chou, Ting-Wei Huang, Yu-Ming Chang
  • Patent number: 8021465
    Abstract: A compressed air supply device for a commercial vehicle is provided. The compressed air supply device includes a valve housing and an air-drying cartridge connected releasably to the valve housing. The valve housing and the air-drying cartridge are connected to each other via a bayonet fastening arrangement.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: September 20, 2011
    Assignee: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
    Inventor: Eduard Hilberer
  • Publication number: 20110219950
    Abstract: The invention relates to a method for purifying a feedstock gas flow including a main compound, water (H2O) and carbon dioxide (CO2) as well as so-called secondary impurities, that comprises: a) feeding the feedstock gas flow into at least one 2-grid radial adsorber comprising as a single adsorption bed an activated alumina or silica gel bed on which H2O is preferably adsorbed; b) feeding the gas resulting from step a) into at least one 2-grid radial adsorber comprising as a single adsorption a molecular sieve bed on which CO2 and secondary impurities are preferably adsorbed; and c) recovering a gas resulting from step b) enriched with the main compound and suitable for cryogenic distillation.
    Type: Application
    Filed: November 6, 2009
    Publication date: September 15, 2011
    Inventors: Guillaume Rodrigues, Benoit Davidian
  • Patent number: 8016918
    Abstract: Pressure swing adsorption process for producing oxygen comprising (a) providing at least one adsorber vessel having a first layer of adsorbent adjacent the feed end of the vessel and a second layer of adsorbent adjacent the first layer, wherein the surface area to volume ratio of the first layer is in the range of about 0.75 to about 1.8 cm?1; (b) introducing a pressurized feed gas comprising at least oxygen, nitrogen, and water into the feed end, adsorbing at least a portion of the water in the adsorbent in the first layer, and adsorbing at least a portion of the nitrogen in the adsorbent in the second layer, wherein the superficial contact time of the pressurized feed gas in the first layer is between about 0.08 and about 0.50 sec; and (c) withdrawing a product gas enriched in oxygen from the product end of the adsorber vessel.
    Type: Grant
    Filed: October 4, 2006
    Date of Patent: September 13, 2011
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Matthew James LaBuda, Timothy Christopher Golden, Roger Dean Whitley, Craig E. Steigerwalt
  • 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: 7972418
    Abstract: A compressed air supply device for a commercial vehicle is provided. The compressed air supply device includes a valve housing and an essentially axially symmetrical, exchangeable air-drying cartridge which is connected to the valve housing. The valve housing and the air-drying cartridge are connected via an essentially circular seal which lies in a plane perpendicular to the axis of the air-drying cartridge. The valve housing and the air-drying cartridge can be coupled to each other by being brought together in an axially parallel manner. The valve housing and the air-drying cartridge have features which permit a leak-proof connection between the valve housing and the air-drying cartridge at one or more angular positions of the air-drying cartridge relative to the valve housing.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: July 5, 2011
    Assignee: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
    Inventor: Eduard Hilberer
  • Publication number: 20110138685
    Abstract: The web of the invention can comprise a super absorbent layer that can act as an moisture sensitive fuel shut-off valve, absorbent, adsorbant or reactant. The web of the invention can comprise a super absorbent fabric or layer made of a superabsorbent particle or fiber. The web can comprise a nanofiber layer having dispersed within the nanofiber layer a super absorbent particulate and optionally a second particulate material that can act as an absorbent, adsorbant or reactant. Fluid, gas or liquid, that flows through or by the assemblies of the invention can have any gas, liquid or solid material dispersed or dissolved in the fluid interact with the super absorbent particulate. If needed these materials can also react with, be absorbed by, or adsorbed onto, the active particulate within the nanofiber layer.
    Type: Application
    Filed: February 14, 2011
    Publication date: June 16, 2011
    Applicant: Donaldson Company, Inc.
    Inventors: Veli E. Kalayci, James Doyle, Derek O. Jones, Brian Babcock, Mike J. Hebert, Philip Edward Johnson, Ketan C. Mehta
  • Publication number: 20110126707
    Abstract: The off-gas from the still and flash tank of an existing glycol-based dehydration unit (containing water vapor, methane, BTEX (benzene, toluene, ethylbenzene, xylene), VOCs (volatile organic compounds)) is sent directly to a gas separation membrane system for dehydration. The gas separation membrane has a high selectivity for water over organic compounds (for example, the membrane described in WO2005/007277A1). The driving force for water permeation is established by applying a vacuum on the permeate side of the membrane unit or by flowing a sweep gas, for example warm, dry air through the permeate side of the unit.
    Type: Application
    Filed: March 6, 2009
    Publication date: June 2, 2011
    Inventors: Gaetan Noel, Pierre Lucien Cote
  • Publication number: 20110120307
    Abstract: Composite porous hydrophobic membranes are prepared by forming a perfluorohydrocarbon layer on the surface of a preformed porous polymeric substrate. The substrate can be formed from poly(aryl ether ketone) and a perfluorohydrocarbon layer can be chemically grafted to the surface of the substrate. The membranes can be utilized for a broad range of fluid separations, such as microfiltration, nanofiltration, ultrafiltration as membrane contactors for membrane distillation and for degassing and dewatering of fluids. The membranes can further contain a dense ultra-thin perfluorohydrocarbon layer superimposed on the porous poly(aryl ether ketone) substrate and can be utilized as membrane contactors or as gas separation. membranes for natural gas treatment and gas dehydration.
    Type: Application
    Filed: December 28, 2010
    Publication date: May 26, 2011
    Applicant: POROGEN CORPORATION
    Inventors: Yong Ding, Benjamin Bikson
  • Publication number: 20110113959
    Abstract: There are described composite absorbers for sealed medical devices, which comprise an active species dispersed in a polymeric matrix having an H2O transmission comprised between 0.05 g mm ?2 d?1 and 5.4 g mm m?2 d?1 at 25° C. and 100% RH, and a method for H2O removal from the sealed medical devices by means of said composite absorbers.
    Type: Application
    Filed: July 9, 2009
    Publication date: May 19, 2011
    Inventors: Antonio Bonucci, Sergio Rondena, Lorena Cattaneo
  • Patent number: 7927406
    Abstract: The water droplet generating system includes a vessel, an opening/closing valve, a moisture absorbent member, and a condenser portion. The vessel has an opening portion. The opening/closing valve opens and closes the opening portion. The water absorbent member absorbs and releases water vapor depending on a change of humidity. The condenser portion is communicated with the inside of the vessel and cools water vapor released from the moisture absorbent member to be at a dew point of water vapor or less. When the opening portion is opened, the moisture absorbent member absorbs water vapor in atmosphere. When the opening portion is closed, the moisture absorbent member releases water vapor, and the condenser portion condenses water vapor, which is released from the moisture absorbent member, to generate a water droplet.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: April 19, 2011
    Assignee: Denso Corporation
    Inventor: Yukihisa Takeuchi
  • Patent number: 7927402
    Abstract: In a method for removing moisture from an optical system at high altitude, the improvement comprises using the difference in flow resistance between the desiccant path and the optical cavity path to enable airflow through the desiccant unit and not through the optical path.
    Type: Grant
    Filed: January 7, 2009
    Date of Patent: April 19, 2011
    Assignee: BAE Systems Information and Electronic Systems Integration Inc.
    Inventors: Kazimierz T. Grzeslak, Jason Stockwell
  • Patent number: 7922790
    Abstract: Compressor device having a compressor (2) with an inlet (3) and an outlet (4); a compressed air line (5) which connects the outlet (4) of the compressor (2) to a user network (6); a drier (7) which is incorporated in the compressed air line (5) and which includes at least two air receivers (13-16) which are each provided with an inlet (14) and an outlet (15) and which are filled with desiccant or drying agent, which air receivers (13-16) work alternately, such that while one air receiver (13) is drying the compressed gas, the other air receiver (16) is regenerated; and a blow-off device (28) for blowing off at least a part of the gas compressed by the compressor when the compressor (2) works in no-load or in partial load, characterized in that mechanisms are provided which make it possible to guide the part of the compressed gas which is blown off via the blow-off device (28) through the regenerating air receiver (13).
    Type: Grant
    Filed: July 20, 2005
    Date of Patent: April 12, 2011
    Assignee: Atlas Copco Airpower Naamloze Vennootschap
    Inventor: Danny Etienne Andrée Vertriest
  • Patent number: 7892327
    Abstract: Apparatuses for controlling a humidity level within an enclosed volume storage device and methods for using same. The apparatus, in one embodiment, comprises a container having outer walls defining an inner volume, at least one of the outer walls, preferably an lid wall, having perforations therein. The apparatus further comprises a composition capable of adsorbing and desorbing water and contained in the inner volume of the container. The composition is hydrated to a hydration level less than about 0.13 mL water per gram of the composition. The methods include a step of hydrating the composition in an apparatus of the invention to a hydration level less than about 0.13 mL water per gram of composition.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: February 22, 2011
    Inventor: Mark David Neff
  • Publication number: 20100300288
    Abstract: Guard layers are employed in the adsorbent beds of rapid cycle pressure swing adsorption (RCPSA) devices to protect the adsorbent therein from certain contaminants (e.g. water vapour). Conventional PSA devices typically pack the guard layer with as much guard material as is practical. In RCPSA devices however, the performance of the guard layer can be improved by using a reduced amount of guard material and increasing access to it. Such embodiments are characterized by guard layers with a channel fraction of greater than 50%.
    Type: Application
    Filed: January 23, 2008
    Publication date: December 2, 2010
    Inventors: Andre Jason Boulet, Amy Chiu, Brian G. Sellars, Andrea C. Gibbs
  • Patent number: 7825056
    Abstract: 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: Grant
    Filed: March 30, 2005
    Date of Patent: November 2, 2010
    Assignee: Ceca, S.A.
    Inventors: Rémi Le Bec, Nicolas Serge
  • Patent number: 7819942
    Abstract: The invention relates to a method for producing a high-molecular polyester from a solidified polyester prepolymer by solid phase polycondensation. The polycondensation cleavage products of the solid phase polycondensation reaction are extracted from the product by means of a process gas, and the process gas is then cleaned and essentially recycled. According to the invention, the process gas is cleaned by means of an aqueous washing liquid. The invention also relates to an installation for carrying out the inventive method, said installation containing a crystallisation appliance (1) and a reaction appliance (2). A gas outlet (2d) of the reaction appliance (2) is directly or indirectly connected to a gas inlet (3c) in a gas cleaning system (3), and a gas outlet (3d) of the gas cleaning system (3) is connected to a gas inlet (2c) of the reaction appliance (2).
    Type: Grant
    Filed: August 22, 2005
    Date of Patent: October 26, 2010
    Assignee: Buhler AG
    Inventors: Andreas Christel, Claudemiro Ferreira
  • Publication number: 20100263532
    Abstract: The method allows liquefaction of a dry natural gas comprising water and heavy hydrocarbons containing more than five carbon atoms. The following stages are carried out: a) passing the dry natural gas through a water-adsorbent solid so as to obtain a water-depleted natural gas and a water-laden adsorbent solid, b) passing the water-depleted natural gas through a solid adsorbing heavy hydrocarbons comprising at least five carbon atoms so as to obtain a heavy hydrocarbon-depleted natural gas and a heavy hydrocarbon-laden adsorbent solid, c) liquefying the heavy hydrocarbon-depleted natural gas at a pressure above 40 bar abs so as to obtain a liquid natural gas under pressure, d) expanding the liquid natural gas under pressure obtained in stage c) to atmospheric pressure so as to obtain a liquid natural gas and a gas fraction.
    Type: Application
    Filed: September 23, 2008
    Publication date: October 21, 2010
    Applicant: IFP
    Inventors: Michel Thomas, Beatrice Fischer, Gilles Ferschneider
  • Publication number: 20100206165
    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: Application
    Filed: July 8, 2008
    Publication date: August 19, 2010
    Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Bruno Alban, Christphe 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
  • Patent number: 7766998
    Abstract: In one aspect of the present invention, an apparatus for the extraction of water from air incorporated into a wall of a building has a cavity formed in the wall. The cavity has an air inlet and an air outlet. A condensing surface is disposed within the cavity and is adapted to direct condensed water to a water storage unit. In another aspect of the present invention, the cavity is formed between two different building walls.
    Type: Grant
    Filed: January 18, 2008
    Date of Patent: August 3, 2010
    Inventors: David R. Hall, Tyson J. Wilde, Andrew Gerla, Joshua Larsen
  • Patent number: 7758771
    Abstract: The invention relates to a product for transformation of a toxic corrosive or environmentally-noxious product into a non-corrosive or non-noxious residue, comprising at least one amphoteric agent, at least one lipophilic absorbent, at least one hydrophilic absorbent and at least one binary colored indicator, selected from the group of the following mixtures: Nile blue/alizarin red, alizarin yellow/alizarin red, thymolphthalein/methyl red, phenolphthalein/methyl red and tropaeolin OO/thymol blue and optionally an additive selected from the group comprising charge agents, granulation agents, anti-static agents and mixtures thereof.
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: July 20, 2010
    Inventors: Marie-Claude Meyer, Laurence Mathieu, Celine Godard
  • Patent number: 7744836
    Abstract: This gas purifying process removes trace constituents from a mixed gas that includes a rare gas and nitrogen as main components, and at least one from among hydrogen, nitrogen and hydrogen reaction products, and water vapor as the trace constituent. This process sequentially carries out an adsorbing step for removing water vapor and nitrogen and hydrogen reaction products; a hydrogen oxidation step for converting the hydrogen into water vapor by means of a hydrogen oxidation catalytic reaction in the presence of oxygen; and a drying step for removing water vapor generated in the hydrogen oxidation step. When nitrogen oxides are included as a trace constituent, then a denitration step is carried out prior to the adsorbing step, to convert nitrogen oxides into nitrogen and water vapor by means of a catalytic denitration reaction in the presence of a reducing substance.
    Type: Grant
    Filed: May 26, 2003
    Date of Patent: June 29, 2010
    Assignees: Taiyo Nippon Sanso Corporation
    Inventors: Tadahiro Ohmi, Ryuichi Yazaki, Masato Kawai, Tetsuya Kimijima, Kunio Matsuda
  • Patent number: 7736416
    Abstract: A carbon dioxide (CO2) removal system includes a first sorbent bed and a second sorbent bed. Each of the first and second sorbent beds has a molecular sieve sorbent for adsorbing or desorbing CO2. One of the sorbent beds adsorbs CO2 and the other of the sorbent beds desorbs CO2. The first and second sorbent beds are thermally connected to transfer heat between the sorbent beds.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: June 15, 2010
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Timothy A. Nalette, Tony Rector
  • Publication number: 20100132548
    Abstract: A process for dehydration of a water rich stream, the process comprising providing a process stream to a first temperature controlled adsorber that is undergoing adsorption, where the first temperature controlled adsorber has one or more adsorption flow passages containing an adsorptive material coating and one or more heat transfer flow passages and producing a dehydrated effluent stream. The process stream is passed through the one or more adsorption flow passages, where water is adsorbed by the adsorptive material coating, and a heat of adsorption is generated. The heat of adsorption is removed by passing a cooling fluid through the one or more heat transfer flow passages. The process stream can be a process stream for producing motor fuel grade ethanol.
    Type: Application
    Filed: December 17, 2008
    Publication date: June 3, 2010
    Inventors: Stephen R. Dunne, David A. Wegerer
  • Publication number: 20100089237
    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: Application
    Filed: March 13, 2008
    Publication date: April 15, 2010
    Applicant: L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EX
    Inventor: Serge Moreau
  • Patent number: 7695547
    Abstract: A desiccant comprises a mixture of a polymeric salt and a nonpolymeric salt.
    Type: Grant
    Filed: February 21, 2007
    Date of Patent: April 13, 2010
    Assignee: Seagate Technologies, LLC
    Inventor: James Hart Smith
  • Patent number: 7666251
    Abstract: Method of purifying a feed stream containing carbon dioxide wherein the feed stream after having been compressed and dried is partly cooled and then used to reboil a stripping column. Thereafter, the feed stream is further cooled and expanded to a lower operational temperature of the stripping column. A carbon dioxide product stream composed of the liquid column bottoms of the stripping column is expanded at one or more pressures to generate refrigeration, then fully vaporized within the main heat exchanger and compressed by a compressor to produce a compressed carbon dioxide product. Refrigeration is recovered in the main heat exchanger from a column overhead stream extracted from the stripping column within the main heat exchanger either directly or indirectly by auxiliary processing in which carbon dioxide is further separated and optionally recycled back to the main compressor used in compressing the feed stream.
    Type: Grant
    Filed: April 3, 2006
    Date of Patent: February 23, 2010
    Assignee: Praxair Technology, Inc.
    Inventors: Minish Mahendra Shah, Henry Edward Howard
  • Patent number: 7666379
    Abstract: A process and apparatus is provided for the purification of binary halide fluid. The process and apparatus purifies the binary halide fluid by selectively removing Bronsted acid impurities and/or volatile oxygen containing impurities present in the binary halide. A regenerable adsorbent polymer is utilized to remove the Bronsted acid impurities from the binary halide fluid and a volatile oxide adsorbent having a specific adsorption capacity for the volatile oxide impurity is utilized to remove the volatile oxide from the binary halide when in gaseous form.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: February 23, 2010
    Assignee: Voltaix, Inc.
    Inventors: Leisl Dukhedin-Lalla, German Shekk, John P. de Neufville, Michael Pikulin
  • Patent number: 7662214
    Abstract: A protective liner includes a body formed from disposable and porous material and has planar top and bottom surfaces respectively. Such a body is removably positioned within an existing refrigerator drawer such that the body covers an entire bottom surface of the existing refrigerator drawer. The body has an outer layer provided with a uniform thickness extending along the top and bottom surfaces respectively. Such an outer layer is formed from paper material and the core member is formed from cotton. The body further has a unitary core member intercalated between the outer layer and is statically nested therebetween. Such a core member is formed from water-absorbent material for soaking up and trapping moisture from the foodstuff.
    Type: Grant
    Filed: October 3, 2007
    Date of Patent: February 16, 2010
    Inventors: Mark Wickham, Lois Wickham
  • Publication number: 20090288557
    Abstract: The present invention relates to a process for the separation of gases which comprises putting a mixture of gases in contact with a zeolite of the ESV type to obtain the selective adsorption of at least one of the gases forming the gaseous mixture. The present invention also relates to particular zeolitic compositions suitable as adsorbents.
    Type: Application
    Filed: June 19, 2007
    Publication date: November 26, 2009
    Applicant: ENI S.P.A.
    Inventors: Angela Carati, Caterina Rizzo, Marco Tagliabue, Luciano Cosimo Carluccio, Cristina Flego, Liberato Giampaolo Ciccarelli
  • Publication number: 20090282975
    Abstract: Methods of purifying hydrogen-containing materials are described. The methods may include the steps of providing a purifier material comprising silica. The silica may be heated at temperature of about 100° C. or more in a dry atmosphere to form activated silica. The activated silica may be contacted with a starting hydrogen-containing material, where the activated silica reduces a concentration of one or more impurity from the starting hydrogen-containing material to form the purified hydrogen-containing material, and where the activated silica does not decompose the purified hydrogen-containing material.
    Type: Application
    Filed: May 14, 2009
    Publication date: November 19, 2009
    Applicant: Matheson Tri-Gas, Inc.
    Inventors: Tadaharu Watanabe, Mark Raynor, Ade Lau, Hirotaka Mangyo
  • Patent number: 7608132
    Abstract: A method and apparatus provide multiple consecutive purges of an air dryer in a vehicle compressed air system. A dryer throughput sensor has an output indicative of the amount of compressed air that is passed through the dryer. In response, a CPU determines the number of purges needed to purge the dryer; and a valve is operated by the CPU to initiate multiple purges of the dryer when the compressor is unloaded.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: October 27, 2009
    Assignee: Bendix Commercial Vehicle Systems LLC
    Inventors: William P. Fornof, Paul Reisinger
  • Patent number: 7608134
    Abstract: The invention concerns a method for decarbonating gas streams polluted by CO2, which consists in contacting them with an adsorbent consisting of an agglomerate of zeolite X with an Si/Al ratio of 1 to 1.15, highly sodium-exchanged comprising not more than 20% of inert binder, to eliminate at least the carbon dioxide.
    Type: Grant
    Filed: March 4, 1999
    Date of Patent: October 27, 2009
    Assignee: CECA S.A.
    Inventor: Dominique Plee
  • Publication number: 20090249953
    Abstract: A method of reducing moisture in a fluorine-containing gas is described. The method may include the steps of providing a purifier material that includes elemental carbon, and flowing the unpurified fluorine-containing gas having an unpurified moisture concentration over or through the carbon-based purifier material. At least a portion of the moisture is captured in the purifier material so that a purified fluorine-containing gas that emerges downstream of the purifier material has a reduced moisture concentration that is about 50% or less of the unpurified moisture concentration.
    Type: Application
    Filed: March 26, 2009
    Publication date: October 8, 2009
    Applicant: Matheson Tri-Gas
    Inventors: Andrew Millward, Joseph V. Vininski, Robert Torres, JR., Tadaharu Wantanbe, Carrie L. Wyse, Mark Raynor, Dan Davia, Praveen Jha
  • Patent number: 7597733
    Abstract: A filter assembly for use in sidestream gas sampling assembly. The filter assembly of the present invention includes a hydrophilic member that is constructed from a porous material and is situated such that gas entering the filter assembly passes through at least a portion the hydrophilic member. In a further embodiment, the filter includes a hydrophobic member positioned downstream of the hydrophilic member. The hydrophobic member acts as a second line of defense against moisture reaching the sensing mechanism in the gas sampling assembly.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: October 6, 2009
    Assignee: RIC Investments, LLC
    Inventors: Brian M. Fudge, Patrick Tuxbury, Kirk Johnson
  • Patent number: 7591881
    Abstract: This invention provides novel devices and methods for manipulation of moisture/fluid levels in and/or upon objects and is used to, e.g., safely dry wet books and documents with minimal deleterious side effects or to add humidity to such books/documents or other objects or areas.
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: September 22, 2009
    Assignees: Artifex Equipment, Inc., The United States of America as represented by the United States Department of Agriculture
    Inventors: Nicholas G. Yeager, Kathleen C. Hayes
  • Publication number: 20090183631
    Abstract: In one aspect of the present invention, an apparatus for the extraction of water from air incorporated into a wall of a building has a cavity formed in the wall. The cavity has an air inlet and an air outlet. A condensing surface is disposed within the cavity and is adapted to direct condensed water to a water storage unit. In another aspect of the present invention, the cavity is formed between two different building walls.
    Type: Application
    Filed: January 18, 2008
    Publication date: July 23, 2009
    Inventors: David R. Hall, Tyson J. Wilde, Andrew Gerla, Joshua Larsen
  • Patent number: 7563310
    Abstract: A dehumidifier for an electrical-equipment air intake has an outer housing wall and a floor of a material with a high specific thermal conductivity downwardly closing the outer housing wall, having a downwardly tapering funnel-shaped inner surface formed with a central downwardly open port, and having a rounded edge where the surface meets the port. An inner air-permeable housing inside the outer housing wall holds a moisture-absorbing mass so that air drawn in through the port can pass through the mass and then into a space between the inner and outer housings. A moisture sensor is provided between the housings and a heater in the mass. A controller connected between the heater and the sensor energizes the heater and cooks moisture out of the mass such that the moisture condenses on the floor and runs over the edge out through the port.
    Type: Grant
    Filed: April 1, 2004
    Date of Patent: July 21, 2009
    Assignee: Maschinenfabrik Reinhausen GmbH
    Inventors: Manfred Eichert, Kurt Kugler, Karsten Viereck, Rainer Brill
  • Patent number: 7537642
    Abstract: A method and a device for discharging air current from a cooking area. The method and the device guide the air current through a sorption agent for absorbing water or water vapor contained in the air current. The sorption agent is regenerated preferably when the air current is not being discharged from the cooking area.
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: May 26, 2009
    Assignee: BSH Bosch und Siemens Hausgeraete GmbH
    Inventors: Joachim Damrath, Andreas Hauer, Martin Kornberger, Eberhard Laevemann
  • Patent number: 7507277
    Abstract: A surface (30) suitable for promoting the formation of droplets of liquid (35) is provided comprising alternating regions of liquid repelling (32) and liquid attracting (33) material in at least one direction across the surface wherein the diameter of the droplets is controlled by the size of the smallest dimension of the liquid attracting material. The surface (30) may be textured and/or form a pattern. Also disclosed are a method and a system of collecting a liquid (35) carried by or condensed out of a vapor comprising passing a vapor across such a surface (30) and a method of purifying a liquid by passing a vapor containing droplets of a liquid over such a surface.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: March 24, 2009
    Assignee: QinetiQ Limited
    Inventors: Christoper Robert Lawrence, Andrew Richard Parker
  • Publication number: 20090071334
    Abstract: A polar-substance-permselective membrane includes a porous support and an active-membrane material. The active-membrane material fills the pores of the porous support to render the support substantially impermeable to non-polar gases at a moderate pressure gradient (e.g., at least 70 kPa) when the hydrophilic active-membrane material is wet. In a particular embodiment the membrane is water-permselective and the active-membrane material is hydrophilic. Water-recovery system and processes utilizing these water-permselective membranes can be used to selectively remove water from hot gas streams at the feed side, and collect water at the permeate side with extremely high energy efficiency. The membrane is particularly useful for in-situ extraction of water molecules directly from hot exhaust streams. The produced steam, or steam and air mixtures can be used as a feedstock in the process of converting liquid hydrocarbons into hydrogen-rich gas streams.
    Type: Application
    Filed: June 16, 2008
    Publication date: March 19, 2009
    Applicant: Aspen Systems, Inc.
    Inventor: Jae Ryu
  • Publication number: 20090065436
    Abstract: The web of the invention can comprise a super absorbent layer that can act as an moisture sensitive fuel shut-off valve, absorbent, adsorbant or reactant. The web of the invention can comprise a super absorbent fabric or layer made of a superabsorbent particle or fiber. The web can comprise a nanofiber layer having dispersed within the nanofiber layer a super absorbent particulate and optionally a second particulate material that can act as an absorbent, adsorbant or reactant. Fluid, gas or liquid, that flows through or by the assemblies of the invention can have any gas, liquid or solid material dispersed or dissolved in the fluid interact with the super absorbent particulate. If needed these materials can also react with, be absorbed by, or adsorbed onto, the active particulate within the nanofiber layer.
    Type: Application
    Filed: March 13, 2008
    Publication date: March 12, 2009
    Inventors: VELI E. KALAYCI, James Doyle, Derek O. Jones, Brian Babcock, Mike J. Hebert, Philip Edward Johnson, Ketan C. Mehta