Means Applies Steam To Solid Sorbent Patents (Class 96/145)
  • Patent number: 10168085
    Abstract: A condenser having a receiver for use in an air conditioning system, having a plurality of refrigerant tubes, at least one header in hydraulic communication with the plurality of refrigerant tubes, and a receiver housing connected to the header. The receiver housing includes a refrigerant conduit nested within the spine of a desiccant bag. The spine divided the desiccant bag into two desiccant compartments, which are folded over the refrigerant conduit such that the desiccant compartments urge the refrigerant conduit onto the spine, thereby holding the desiccant bag in a predetermined position.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: January 1, 2019
    Assignee: MAHLE International GmbH
    Inventors: Scott E. Kent, Agnieszka Filipiak
  • Patent number: 10010826
    Abstract: A carbon dioxide separation and recovery system includes an adsorption tower, a regeneration tower, and a drying tower. The adsorption tower causes a target gas to contact an adsorbent to adsorb carbon dioxide contained in the target gas to the adsorbent. The regeneration tower causes a normal-pressure wet gas which is a gas mixture of the carbon dioxide and steam to contact the adsorbent having adsorbed the carbon dioxide to desorb the carbon dioxide from the adsorbent. The drying tower dries the adsorbent. In addition, the carbon dioxide separation and recovery system includes a compressor that compresses the carbon dioxide, and an ejector that expands the carbon dioxide discharged from the compressor while suctioning negative-pressure steam, to generate the wet gas.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: July 3, 2018
    Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Takeshi Okumura, Yoshiharu Nonaka, Tomoyuki Ogino, Shohei Nishibe, Takatoshi Shoji
  • Patent number: 9981219
    Abstract: A gas purification processing apparatus is described. The gas purification processing apparatus can control the generation of adsorption heat by an adsorbate substance in purification processing and thereby prevent desorption or ignition or the like of the adsorbate component by performing cooling processing on an adsorbent itself when needed. This advantageously ensures high adsorption efficiency with a simple and convenient configuration. During operation of the apparatus, gas is supplied from the source and purified by a purification part and then discharged as a purified gas. When the temperature of the purification part exceeds a predetermined temperature, a cooling medium is supplied from the cooling processing part to cool the purification part.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: May 29, 2018
    Assignee: SE INDUSTRIES CO., LTD.
    Inventor: Masanori Shiraishi
  • Patent number: 9550142
    Abstract: A device is disclosed for conducting an adsorption/desorption swing reaction. The desorption step of the reaction is conducted at least in part at a temperature below 100° C. Dry steam is used for purging the reactor and the adsorbent bed in the reactor. For this purpose the device has a water reservoir, and a vacuum source in fluid connection with the water reservoir and the reactor. During the desorption step the vacuum source causes water to evaporate, and the water vapor to flow through the reactor.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: January 24, 2017
    Inventors: Timo Roestenberg, Gerrit Brem
  • Publication number: 20150104554
    Abstract: The present disclosure provides a method and apparatus for extracting carbon dioxide (CO2) from a fluid stream and for delivering that extracted CO2 to controlled environments for utilization by a secondary process. Various extraction and delivery methods are disclosed specific to certain secondary uses, included the attraction of CO2 sensitive insects, the ripening and preservation of produce, and the neutralization of brine.
    Type: Application
    Filed: April 21, 2014
    Publication date: April 16, 2015
    Applicant: Kilimanjaro Energy, Inc.
    Inventors: Allen B. Wright, Klaus S. Lackner
  • Publication number: 20150013543
    Abstract: A CO2 separation unit for recovering CO2 from a CO2-containing gas by using a solid CO2 capturing material, in which the amount of used steam is decreased: the unit comprising a capturing material container (1) having a CO2 capturing material for capturing CO2, a first pipeline (2a) for allowing the CO2-containing gas to flow therethrough into the capturing material container (1), a second pipeline (2b) for allowing a gas from which CO2 has been removed by the CO2 capturing material to be discharged therethrough from the capturing material container (1), a third pipeline (2c) for introducing a steam-containing gas to the inside of the capturing material container (1), a fourth pipeline (2d) for allowing a desorbed CO2-containing gas desorbed from the CO2 capturing material, while the steam-containing gas flows in the container, to be discharged therethrough from the capturing material container (1), wherein the unit further includes a compressor (4a) for compressing steam, a fifth pipeline (2e) for connecting
    Type: Application
    Filed: January 15, 2013
    Publication date: January 15, 2015
    Inventors: Kohei Yoshikawa, Hiroki Sato, Masato Kaneeda, Shuichi Kanno, Hisayuki Orita
  • Publication number: 20150007727
    Abstract: A process for separating a carbon dioxide from a gas stream is disclosed. The process can include passing the gas stream over a sorbent that adsorbs the carbon dioxide by concentration swing adsorption and adsorptive displacement. The sorbent can be regenerated and the carbon dioxide recaptured by desorbing the carbon dioxide from the sorbent using concentration swing adsorption and desorptive displacement. A carbon dioxide separation system is also disclosed. Neither the system nor the process rely on temperature swing or pressure swing adsorption.
    Type: Application
    Filed: July 8, 2014
    Publication date: January 8, 2015
    Inventors: Jeannine Elizabeth Elliott, Robert James Copeland, Daniel P. Leta, Patrick P. McCall, Chuansheng Bai, Bruce A. DeRites
  • Publication number: 20140331864
    Abstract: There is provided a moving bed type CO2 separation apparatus that is capable of achieving steady recovery of CO2, and that is energy-efficient. An adsorbent hopper that supplies a CO2 adsorbent of a moving bed to an adsorption tower that adsorbs CO2 from a treatment-target gas is provided. Below the adsorption tower, a moving bed-type regeneration tower for regenerating the CO2 adsorbent having adsorbed CO2 and a moving bed-type drying tower that dries the regenerated CO2 adsorbent are provided. Desorption-purpose steam generated from the drying tower is supplied to the regeneration tower. By allowing the desorption-purpose steam to be condensed on the CO2 adsorbent, CO2 is desorbed from the CO2 adsorbent. Thus, CO2 adsorbent forming a moving bed is used in a circulating manner through the CO2 separation apparatus, and the energy used for drying the condensed water contained in the CO2 adsorbent is used for desorbing CO2.
    Type: Application
    Filed: October 11, 2012
    Publication date: November 13, 2014
    Inventors: Tomoyuki Ogino, Yoshiharu Nonaka, Masatoshi Hirokawa, Takeshi Okumura, Takatoshi Shoji
  • Patent number: 8840704
    Abstract: A carbon dioxide separation method and a carbon dioxide separation apparatus capable of maintaining a carbon dioxide adsorption capacity for a long term by collecting an amine compound that evaporates during an operation of the apparatus and reloading the amine compound onto a carbon dioxide adsorbent. An amine collector and an amine aqueous solution preparation device are connected to an adsorbent-packed tank packed with a carbon dioxide adsorbent. An amine compound that evaporates from the carbon dioxide adsorbent during an operation of the apparatus is collected by the amine collector into the amine aqueous solution preparation device. The collected amine compound is reloaded onto the carbon dioxide adsorbent via a supply line.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: September 23, 2014
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Takatoshi Shoji, Akira Kimura, Teruo Kishimoto
  • Patent number: 8695374
    Abstract: A chemical heat pump includes a reactor part (1) that contains an active substance and an evaporator/condenser part (3) that contains that portion of volatile liquid that exists in a condensed state and can be absorbed by the active substance. A channel (4) interconnects the reactor part and the evaporator/condenser part, In at least the reactor part a matrix (13) is provided for the active substance so that the active substance both in its solid state and its liquid state or its solution phase is held or carried by or bonded to the matrix. The matrix is advantageously an inert material such as aluminum oxide and has pores, which are permeable for the volatile liquid and in which the active substance is located. In particular, a material can be used that has a surface or surfaces, at which the active substance can be bonded in the liquid state thereof. For example, the matrix can be a material comprising separate particles such as a powder or a compressed fiber material.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: April 15, 2014
    Assignee: Climatewell AB (Publ)
    Inventors: Ray Olsson, Göran Bolin
  • Publication number: 20140053730
    Abstract: A system and process for removing hydrocarbons from a gas process feed stream is presented. The treatment process may be, but is not limited to, glycol dehydration, amine sweetening, and MEG reclamation. As an example, a hydrocarbon removal bed containing a solid adsorbent material adsorbs the hydrocarbons in a rich MEG feed stream as it passes through the hydrocarbon removal bed. After the hydrocarbons have been removed, the feed stream flows through a flash separator and a distillation column to reclaim MEG. Alternatively, the hydrocarbon removal bed may be used after the MEG reclamation process to remove hydrocarbons in the distilled water from the distillation column. Spent solid adsorbent material may be regenerated in place.
    Type: Application
    Filed: August 24, 2012
    Publication date: February 27, 2014
    Inventors: Daniel W. Phelps, Luis Eduardo Caires Fernandez
  • Patent number: 8529677
    Abstract: A carbon canister as utilized relative to underground fuel storage tank vapor recovery, including for the capture and purging of hydrocarbon vapors as air is introduced into and released from an underground storage tank, and wherein, in one form intended primarily for use in Stage II Vapor Recovery systems, the carbon canister includes a valve activated by weight of saturated carbon and wherein, in another form intended primarily for use in Stage I Vapor Recovery systems, the carbon canister is a free breathing carbon canister with a surge protection device.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: September 10, 2013
    Assignee: Husky Corporation
    Inventors: Timothy Schroeder, Darrell Vilmer, Arthur C. Fink, Jr.
  • Publication number: 20130152794
    Abstract: Disclosed is a dry carbon dioxide capturing device which can improve sorption efficiency by supplying sorbent for absorbing carbon dioxide or exhaust gas containing carbon dioxide to a recovery reactor in multistages at various heights, The dry carbon dioxide (CO2) capturing device with multistage supply structure comprises a recovery reactor 102 to recover CO2 by contacting a solid sorbent with exhaust gas; a recovery cyclone 110 connected to the recovery reactor 102 to discharge a gas while separating the CO2-captured solid sorbent only; a regenerator 114 connected to the recovery cyclone 110 to receive the CO2-captured solid sorbent and separate CO2 captured in the solid sorbent; and a pre-treatment reactor 122 connected to the regenerator 114 for cooling the solid sorbent free from CO2, wherein at least one of the exhaust gas supply line and the sorbent supply line has two or more arranged according to the height of the recovery reactor 102.
    Type: Application
    Filed: November 20, 2012
    Publication date: June 20, 2013
    Applicant: Korea Institute of Energy Research
    Inventor: Korea Institute of Energy Research
  • Publication number: 20120325088
    Abstract: A method and reactor for removing a component from a gas stream is provided. In one embodiment, the method includes providing the gas stream containing the component that is to be removed and adsorbing the component out of the gas stream as the gas stream rises via microbeads of a sorbent falling down an adsorber section of a reactor.
    Type: Application
    Filed: June 6, 2012
    Publication date: December 27, 2012
    Inventors: Marc D. Hornbostel, Gopala N. Krishnan, Angel Sanjurjo
  • Publication number: 20120304858
    Abstract: Disclosed is a method for removing carbon dioxide from a gas stream, comprising placing the gas stream in contact with a resin, wetting the resin with water, collecting water vapor and carbon dioxide from the resin, and separating the carbon dioxide from the water vapor. The resin may be placed in a chamber or a plurality of chambers connected in series wherein the first chamber contains resin that was first contacted by the gas, and each successive chamber contains resin which has been wetted and carbon dioxide collected from for a greater period of time than the previous chamber, and so on, until the last chamber. Secondary sorbents may be employed to further separate the carbon dioxide from the water vapor.
    Type: Application
    Filed: April 17, 2008
    Publication date: December 6, 2012
    Applicant: GLOBAL RESEARCH TECHNOLOGIES, LLC
    Inventors: Allen B. Wright, Klaus S. Lackner, Ed Leon-Guerrero, Ursula Ginster, Tymothy Catterson, Karl Madison, Ryuhei Ishikawa, George W. Grimm, Mark Malcomson, Ping Liu
  • Publication number: 20120174793
    Abstract: New and useful system and method concepts are provided, for removing carbon dioxide from a flow of carbon dioxide laden air. More specifically, a sorbent structure is used in new and useful structures and techniques to bind carbon dioxide in a carbon dioxide laden air stream, and process heat is used to separate carbon dioxide from the sorbent structure and regenerate the sorbent structure.
    Type: Application
    Filed: March 20, 2012
    Publication date: July 12, 2012
    Inventor: Peter Eisenberger
  • Publication number: 20120160099
    Abstract: A carbon dioxide separation method and a carbon dioxide separation apparatus capable of maintaining a carbon dioxide adsorption capacity for a long term by collecting an amine compound that evaporates during an operation of the apparatus and reloading the amine compound onto a carbon dioxide adsorbent. An amine collector and an amine aqueous solution preparation device are connected to an adsorbent-packed tank packed with a carbon dioxide adsorbent. An amine compound that evaporates from the carbon dioxide adsorbent during an operation of the apparatus is collected by the amine collector into the amine aqueous solution preparation device. The collected amine compound is reloaded onto the carbon dioxide adsorbent via a supply line.
    Type: Application
    Filed: July 22, 2010
    Publication date: June 28, 2012
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Takatoshi Shoji, Akira Kimura, Teruo Kishimoto
  • Publication number: 20120000364
    Abstract: A system for removing carbon dioxide from an atmosphere to reduce global warming including an air extraction system that collects carbon dioxide from the atmosphere through a medium and removes carbon dioxide from the medium; a sequestration system that isolates the removed carbon dioxide to a location for at least one of storage and generation of a renewable carbon fuel; and one or more power supplying units that supply heat to the air extraction system to remove the carbon dioxide from the medium, at least one of the one or more power supplying units being a fossil fuel plant.
    Type: Application
    Filed: July 5, 2011
    Publication date: January 5, 2012
    Inventors: Peter Eisenberger, Graciela Chichilnisky
  • Publication number: 20110296872
    Abstract: A method and a system capable of removing carbon dioxide directly from ambient air, and obtaining relatively pure CO2. The method comprises the steps of generating usable and process heat from a primary production process; applying the process heat from said primary process to water to co-generate substantially saturated steam, alternately repeatedly exposing a sorbent to removal and to capture and regeneration system phases, wherein said sorbent is alternately exposed to a flow of ambient air during said removal phase, thereby enabling said sorbent to sorb, and therefore remove, carbon dioxide from said ambient air, and to a flow of the co-generated steam during the regeneration and capture phase, after the sorbent has adsorbed the carbon dioxide, thereby enabling regeneration of such sorbent, and the resultant capture in relatively pure form of the adsorbed carbon dioxide.
    Type: Application
    Filed: April 29, 2011
    Publication date: December 8, 2011
    Inventor: Peter Eisenberger
  • Patent number: 8038772
    Abstract: A filter cartridge for recovering halogenated hydrocarbons (HKW), such as those occurring in inhalation anesthetics in the medical field, contains a first gas inlet; a container which contains a filter insert; wherein the container is connected over a connection with a cover and with a gas release; wherein the container is united via two sealing rings and a filter plate with the cover; wherein the filter insert contains a zeolite; wherein the filter insert has openings; wherein the filter insert adapts with the base of the filter insert to recesses in the container.
    Type: Grant
    Filed: August 18, 2008
    Date of Patent: October 18, 2011
    Assignee: ZeoSys GmbH
    Inventors: Bernd Fuesting, Peter Muenn, Hartmut Welke, Helmut Stach
  • Patent number: 8025719
    Abstract: A regenerated sulfur recovery apparatus positioned in a sulfur recovery plant, which apparatus contains a sulfur purifier that cools gaseous sulfur and condensates it, forming liquid sulfur while removing impurities contained therein; the apparatus containing a steam supplying means for melting solid sulfur deposited on an inner wall of the sulfur purifier, a molten sulfur reservoir that recovers and stores the melted sulfur, a reservoir heating means that heats the reservoir, an exhaust gas line that directs to the outside an exhaust gas formed in the reservoir when the reservoir is heated by the reservoir heating means, and an inert gas supply means that supplies an inert gas to the reservoir, such that the inert gas supplied into the reservoir flows to the outside through the exhaust gas line when molten sulfur stored in the reservoir is discharged from the reservoir.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: September 27, 2011
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yoshihisa Tokumasu, Kazuo Fujita, Fumio Kubo
  • Publication number: 20110061529
    Abstract: A process is described for purifying synthesis gas by means of a pressure swing adsorption unit which is desorbed by a vacuum produced by a so-called ejector, which is driven by steam generated by a heat exchanger which uses the heat in the flue gas duct or in the useful-gas duct for the generation of steam. The pressure swing adsorption unit is operated advantageously in cyclic turns of adsorption under excess pressure, depressurization desorption and vacuum desorption and the gas desorbed by the ejector being cooled in a cooler so that the contained steam can be condensed and discharged or is advantageously returned to the feed gas for the synthesis gas production. The foreign gas desorbed by the pressure swing adsorption unit, which contains at least partly not yet consumed fuel gas, is recycled to the fuel gas. In an advantageous embodiment, the vacuum from the ejector is stored in an intermediate tank and applied to the pressure swing adsorption unit according to the vacuum desorption cycle.
    Type: Application
    Filed: February 17, 2009
    Publication date: March 17, 2011
    Applicant: UHDE GMBH
    Inventors: Thilo Von Trotha, Vincent Liu, Michael Wyschofsky
  • Patent number: 7854790
    Abstract: A method of processing a volatile organic compound is provided, wherein a volatile organic compound contained in gas to be treated is adsorbed in an adsorbent; the thus-adsorbed volatile organic compound is desorbed with the aid of steam and mixed in the steam; and the steam containing the volatile organic compound is combusted. This method further includes: separating a vessel for the adsorption and desorption into an inner side room and an outer side room by means of a separation member part of which is formed of the adsorbent; thermally retaining the vessel for the adsorption and desorption; at the time of adsorption, supplying the gas to be treated to the inner side room and therefrom to the outer side room; and at the time of desorption, supplying the steam to the outer side room and therefrom to the inner side room.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: December 21, 2010
    Assignee: Ishikawajima-Harima Heavy Industries Co., Ltd.
    Inventors: Shigekazu Uji, Masahito Yamaguchi
  • Publication number: 20100031528
    Abstract: The invention provides a process for controlling the moisture content, of a supply gas for use in drying a product, which process comprises the steps of: (a) providing the supply gas; (b) optionally heating the supply gas; (c) determining the temperature and the moisture content of the supply gas; (d) contacting the supply gas with a rotating desiccant wheel, whereby the rotating speed of the desiccant wheel is controlled by means of the data on the temperature and the moisture content as obtained in step (c) in combination with the corresponding sorption isotherm of the desiccant; and (e) recovering the dehumidified supply gas as obtained in step (d). The invention further provides a dehumidified gas obtainable by said process, a dehumidifier system, a process for drying a product comprising bringing the product into contact with a dehumidified gas as obtained in accordance with the invention, and a product obtainable by said drying process.
    Type: Application
    Filed: October 12, 2007
    Publication date: February 11, 2010
    Applicant: Nederlandse Organisatie voor toegepast-natuurwete- nschappelijk onderzoek TNO
    Inventors: Jan Coen Akkerman, Moniek Afra Boon, Paulus Josephus Theodorus Bussmann
  • Publication number: 20090145301
    Abstract: A revolving gas adsorption concentrator uses about 300 degree centigrade of hot desorption air. The revolving gas adsorption concentrator prevents leakage of such hot desorption air. An elastic seal which has elasticity divides a honeycomb shape rotor into a desorption zone and an adsorption zone and touches the honeycomb shape rotor. A heat-resistant seal comprises of material whose heat resistance is higher than elastic seal. The heat-resistant seal has two plates which has a mutually opened spacing to prevent hot gas from going to the elastic seal based on the labyrinth effectiveness. The elastic seal is formed in the outside of desorption zone from heat-resistant seal. The seal of the hot desorption air is almost blocked by heat-resistant seal and the desorption air which leaked slightly can be thoroughly blocked completely by elastic seal.
    Type: Application
    Filed: December 11, 2007
    Publication date: June 11, 2009
    Applicant: SEIBU GIKEN CO., LTD.
    Inventors: Hiroshi Okano, Ken-ichiro Yamada
  • Publication number: 20090101010
    Abstract: A filter cartridge for recovering halogenated hydrocarbons (HKW), such as those occurring in inhalation anesthetics in the medical field, contains a first gas inlet; a container which contains a filter insert; wherein the container is connected over a connection with a cover and with a gas release; wherein the container is united via two sealing rings and a filter plate with the cover; wherein the filter insert contains a zeolite; wherein the filter insert has openings; wherein the filter insert adapts with the base of the filter insert to recesses in the container.
    Type: Application
    Filed: August 18, 2008
    Publication date: April 23, 2009
    Applicant: ZeoSys GmbH
    Inventors: Bernd FUESTING, Peter MUENN, Hartmut WELKE, Helmut STACH
  • Patent number: 7377959
    Abstract: A large amount of a medium containing a volatile chlorinated organic compound (VOC) with a low concentration is passed through an adsorber filled with an adsorbent which adsorb and desorb the VOC to collect the VOC in the medium in the adsorber; a gas containing water vapor is then brought into contact with the adsorbent to desorb and discharge the VOC from the adsorber; the desorbed gas is cooled to condense the VOC and water; a small amount of the VOC with a high concentration vaporized from the condensate is further irradiated with light in the presence of chlorine to decompose the VOC; and the decomposed product is subsequently treated. This constitution can allow a large amount of the VOC with a low concentration to be irradiated with light in the presence of chlorine to efficiently treat the VOC.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: May 27, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shinya Kozaki, Akihito Hosaka, Keisuke Miyamura
  • Publication number: 20080072760
    Abstract: A carbon dioxide absorbent includes lithium silicate containing lithium orthosilicate and lithium metasilicate, the lithium metasilicate being contained in an amount of 5% by weight or more to 40% by weight or less with respect to the total amount of lithium orthosilicate and lithium metasilicate, where the lithium metasilicate produced by reaction of the lithium orthosilicate and carbon dioxide is excluded.
    Type: Application
    Filed: March 15, 2007
    Publication date: March 27, 2008
    Inventors: Toshihiro Imada, Yasuhiro Kato, Masahiro Kato
  • Patent number: 6680030
    Abstract: A baffle-style stripping arrangement for an FCC process having substantially horizontal stripping baffles is disclosed. The stripping baffles comprise a perforated section and a downcomer section which generates transverse movement of catalyst across the baffle to ensure adequate vertical movement of stripping media. The perforated section is covered with stripping openings to provide improved stripping efficiency and catalyst flux through the stripping vessel. The perforated section may comprise a grate. Baffles may also include an imperforate section which is vertically aligned with a downcomer section of a superjacent baffle.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: January 20, 2004
    Assignee: UOP LLC
    Inventors: Jeffrey P. Koebel, Brian W. Hedrick, Kalidas Puppala
  • Patent number: 6478855
    Abstract: A heat exchanger, perhaps a cross flow heat exchanger, has first and second passages. During dehumidification (adsorption of moisture) in the first passages, water is evaporated from the second passages. This water can be introduced to the second passages during reactivation (desorption of moisture) in the first passages or at another time. If the water is introduced to the second passages during reactivation, the first and second passages have therein first and second moisture adsorbents. During a first time period, air to be dehumidified is passed through the first passages of the heat exchanger and cooling air is passed through the second passages of the heat exchanger to remove heat generated in the first passages and to desorb moisture adsorbed by the second moisture adsorbent. During a second time period, a heating fluid is passed through the second passages of the heat exchanger to heat the first passages and supply moisture for adsorption to the second moisture adsorbent.
    Type: Grant
    Filed: August 29, 2000
    Date of Patent: November 12, 2002
    Assignee: Seibu Giken Co., Ltd.
    Inventor: Hiroshi Okano
  • Patent number: 6478857
    Abstract: A total delivery oxygen concentration system is provided to supply concentrated oxygen to end users having a variety of oxygen capacity requirements. The system includes a first oxygen concentrating device that may be operated either singularly to produce a first flow of concentrated oxygen or in conjunction with a supplemental oxygen concentrating device. When operating in conjunction with the supplemental oxygen concentrating device, the first oxygen concentrating device serves as a source of compressed air for the supplemental oxygen concentrating device and receives a second flow of concentrated oxygen from the supplemental oxygen concentrating device to provide a combined concentrated oxygen flow to the end user.
    Type: Grant
    Filed: January 7, 2002
    Date of Patent: November 12, 2002
    Assignee: Respironics, Inc.
    Inventor: Michael P. Czabala
  • Patent number: 6444015
    Abstract: The apparatus of the present invention for treating a gas containing a substance to be decomposed comprises an adsorption unit equipped with an adsorbent for adsorbing the substance to be decomposed, a steam introduction unit for bringing steam into contact with the adsorbent, a condensation unit for obtaining a condensed liquid containing the substance to be decomposed from the steam containing the substance, a reaction tank, a condensed liquid supply unit for supplying the condensed liquid to the reaction tank, a hypochlorous acid supply unit for supplying a solution containing hypochlorous acid to the reaction tank, and a light irradiation unit for irradiating the reaction tank with light.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: September 3, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventor: Kinya Kato
  • Patent number: 6372018
    Abstract: A VOC removal or destruction system incorporates a regenerator/reactivator having a cylindrical ceramic tube for receiving contaminated adsorbent activated carbon. Electrodes are provided in the ceramic tube in contact with the activated carbon and a programmable logic controller is connected to control the voltage applied to the electrodes and the current flowing through the activated carbon within the tube. The temperature of the material in the tube is controlled by the programmable controller to maintain a temperature within one of two temperature ranges for regenerating the activated carbon and for reactivating the activated carbon. An inert gas is supplied through the tube in contact with the contaminated adsorbent material; the effluent gas including the stripped VOC's is supplied to an oxidizer for destruction. The oxidizer includes a stoichiometric burner providing combustion products for oxidizing the gaseous adsorbate and for providing carrier gas to the regenerator/reactivator.
    Type: Grant
    Filed: March 14, 2000
    Date of Patent: April 16, 2002
    Inventor: Harold R. Cowles
  • Patent number: 6346139
    Abstract: A total delivery oxygen concentration system is provided to supply concentrated oxygen to end users having a variety of oxygen capacity requirements. The system includes a first oxygen concentrating device that may be operated either singularly to produce a first flow of concentrated oxygen or in conjunction with a supplemental oxygen concentrating device. When operating in conjunction with the supplemental oxygen concentrating device, the first oxygen concentrating device serves as a source of compressed air for the supplemental oxygen concentrating device and receives a second flow of concentrated oxygen from the supplemental oxygen concentrating device to provide a combined concentrated oxygen flow to the end user.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: February 12, 2002
    Assignee: Respironics, Inc.
    Inventor: Michael P. Czabala
  • Patent number: 6322612
    Abstract: A pressure or vacuum swing adsorption process and apparatus are used for the separation and recovery of certain gaseous components, such as carbon dioxide from hot gas mixtures containing water vapor. The process comprises introducing the feed gas mixture at an elevated temperature into a feed end of an adsorber column containing an adsorbent. The adsorbent preferentially adsorbs at least one adsorbable component. An adsorber effluent, depleted of the at least one adsorbable component, is withdrawn from a product end of the adsorber column. The adsorber column is depressurized below atmospheric pressure and then purged with steam to withdraw an effluent comprising a mixture of the at least one adsorbable component and H2O. Next, the adsorber column is pressurized by introducing a gas that is depleted of the at least one adsorbable component. The steps are repeated in a cyclic manner.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: November 27, 2001
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Shivaji Sircar, Catherine Marie Anne Golden
  • Patent number: 6235086
    Abstract: A novel method and apparatus to dehumidify air provides enhanced dehumidification efficiency over conventional dehumidification apparatuses. A reusable dehumidification element disk provides a disk section to strip water from an air stream. The disk is rotated so that the saturated disk section enters a separate chamber where the water can be stripped from the disk with a stream of regeneration air. The regeneration air stream is recycled and is not split from or mixed with the air stream requiring dehumidification. The result is a more efficient dehumidification than in apparatuses which require the influent air stream to be divided into separate streams for dehumidification and regeneration functions.
    Type: Grant
    Filed: March 13, 2000
    Date of Patent: May 22, 2001
    Assignee: Kankyo Co., Ltd.
    Inventor: Yasuyuki Fujimura
  • Patent number: 6226888
    Abstract: A method and device for drying a gas by means of adsorption on a desiccant able to be regenerated (11), whereby a portion of the dried gas is used for regenerating the desiccant. The gas portion used for the regeneration is heated in at least two successive steps, said steps being performed in different zones (30,31 or 33-36) situated successively in the flow direction of the gas portion through the regenerating desiccant (11) and by stopping the heating in a zone (30,31 or 33-36) as soon as the desiccant (11) in this zone (30,31 or 33-36) is regenerated, so that this zone (30,31 or 33-36) may already cool down by the gas portion for regeneration while a successive zone (30,31 or 33-36) is still regenerated by the heated gas. In each vessel (7, 8) at least two individually controllable heating elements (25-26; 27-28; 38-41) are present.
    Type: Grant
    Filed: December 6, 1999
    Date of Patent: May 8, 2001
    Assignee: Atlas Copco Airpower, naamloze vennootschap
    Inventor: Kristian Karl Henrik Lang
  • Patent number: 6083304
    Abstract: A novel method and apparatus to dehumidify air provides enhanced dehumidification efficiency over conventional dehumidification apparatuses. A reusable dehumidification element disk provides a disk section to strip water from an air stream. The disk is rotated so that the saturated disk section enters a separate chamber where the water can be stripped from the disk with a stream of regeneration air. The regeneration air stream is recycled and is not split from or mixed with the air stream requiring dehumidification. The result is a more efficient dehumidification than in apparatuses which require the influent air stream to be divided into separate streams for dehumidification and regeneration functions.
    Type: Grant
    Filed: January 28, 1998
    Date of Patent: July 4, 2000
    Assignee: Kankyo Co., Ltd.
    Inventor: Yasuyuki Fujimura
  • Patent number: 5938816
    Abstract: A process for the purification of gases loaded in particular with chemical residues, in particular of the exhaust air from printing equipment, in which process the gas to be purified is drawn off from the regions producing the impurities and led via piping to an arrangement of adsorber-filter cartridges that serve for the separation of the impurities from the gas and are periodically separated in a cyclical manner from the exhaust flow for the carrying out of a regeneration process.
    Type: Grant
    Filed: May 13, 1997
    Date of Patent: August 17, 1999
    Assignee: Firma Maul & Co. - Chr. Belser GMBH
    Inventors: Rainer Harle, Winfried Marquardt
  • Patent number: 5908490
    Abstract: A compact organic solvent recovery system includes a backup treatment apparatus for environmentally safe treatment of an organic solvent leaking into a gas exiting an adsorption tower packed with an adsorbing material such as particulate active charcoal or active carbon fiber. Adsorption treatment of organic solvents includes introducing an organic solvent containing gas to be treated into an organic solvent recovery apparatus including an adsorption tower packed with adsorbing material. By subsequently introducing steam into the adsorption tower, the organic solvents are desorbed. By introducing the treated gas discharged from the organic solvent recovery apparatus into the backup treatment apparatus, the organic solvents leaking into the treated gas are adsorbed, and the gas treated in the backup treatment apparatus is simultaneously discharged as purified gas.
    Type: Grant
    Filed: January 12, 1998
    Date of Patent: June 1, 1999
    Assignee: Toho Chemical Engineering and Construction Co., Ltd.
    Inventors: Mikio Akamatsu, Kenji Seki, Taketo Hata
  • Patent number: 5542965
    Abstract: In a process and installation for removing solvent vapor from exhaust air sucked from a working space, the air is fed to at least two parallel activated carbon adsorbers. Each adsorber can be switched to and fro between a charging mode in which it adsorbs solvent vapors from the exhaust air flowing through the adsorber, and a regeneration mode in which it is separated from the flow of exhaust air and flushed with water vapor and desorbed. To save energy and to reduce environmental pollution, at the end of the regeneration period each adsorber has a drying phase in which exhaust air from the working space flows through the adsorber, the air thereafter being fed to an adsorber which is operating in the charging mode.
    Type: Grant
    Filed: November 17, 1994
    Date of Patent: August 6, 1996
    Assignee: U.E. Sebald Druck und Verlag GmbH
    Inventors: Werner Straubinger, Gunter Pecher, Richard Kohlmann
  • Patent number: 5538540
    Abstract: An apparatus capable of being used for the separation of solutes dissolved in a gaseous solvent is described. In one aspect, the apparatus includes a bed of sorbent in a container, a device which allows the gaseous solvent to pass through the bed of sorbent in a first direction, a device which allows the pressure of the gas to increase and/or the temperature of the gas to decrease, and a device which allows the gaseous solvent to pass through the bed of sorbent in a second direction. In another aspect, the device is capable of allowing the bed of sorbent to be contaminated by the solute and also be regenerated in situ.
    Type: Grant
    Filed: December 28, 1994
    Date of Patent: July 23, 1996
    Inventor: David R. Whitlock
  • Patent number: RE38893
    Abstract: A novel method and apparatus to dehumidify air provides enhanced dehumidification efficiency over conventional dehumidification apparatuses. A reusable dehumidification element disk provides a disk section to strip water from an air stream. The disk is rotated so that the saturated disk section enters a separate chamber where the water can be stripped from the disk with a stream of regeneration air. The regeneration air stream is recycled and is not split from or mixed with the air stream requiring dehumidification. The result is a more efficient dehumidification than in appara- tuses which require the influent air stream to be divided into separate streams for dehumidification and regeneration functions.
    Type: Grant
    Filed: May 21, 2003
    Date of Patent: November 29, 2005
    Assignee: Kankyo Co., Ltd.
    Inventor: Yasuyuki Fujimura