Inorganic Gas, Liquid Particle, Or Solid Particle Sorbed (e.g., Vapor, Mist, Dust, Etc.) Patents (Class 95/230)
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Patent number: 9039813Abstract: The exhaust gas treatment apparatus has a sealed vessel which is vertically partitioned into two spaces by a partition. A portion of the sealed vessel lower than the partition is an absorbing liquid storage portion, and a portion of the sealed vessel upper than the partition is an exhaust gas introducing portion. The partition is provided with a large number of sparger pipes so that the sparger pipes reach inside an absorbing liquid stored in the absorbing liquid storage portion. The partition is provided with a single gas riser in communication with a space upper than the absorbing liquid in the absorbing liquid storage portion. An upper end of the gas riser passes through a top plate portion of the sealed vessel and protrudes upward.Type: GrantFiled: October 21, 2010Date of Patent: May 26, 2015Assignee: CHIYODA CORPORATIONInventors: Noboru Takei, Sohsuke Kido, Naohiro Kaji, Akira Kumagai
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Publication number: 20150107451Abstract: Radon is removed from a gas in an apparatus comprising: (a) a liquid-contacting apparatus having a shielded reservoir containing a fresh working liquid in which radon is soluble; and (b) a means for causing a stream of gas containing radon to pass through the liquid-contacting apparatus. When the radon level in the working liquid reaches a certain level, the working liquid is either taken out of service and stored until the radon level is reduced or the working liquid is diluted with additional working liquid having no radon.Type: ApplicationFiled: October 21, 2014Publication date: April 23, 2015Inventors: Colin G. Meyer, Allan H. Moyse
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Patent number: 8945286Abstract: The invention relates to a device and method for treating a hot gas flow containing slag and to an entrained-bed gasifier system that comprises the device. The device comprises, in a housing, an inlet arranged at the top for the hot gas flow, an immersion pipe, which is arranged vertically and concentrically in the housing and into which the inlet opens, a coolant bath, into which a lower section of the immersion pipe is immersed, and at least one raw gas outlet opening for cooled raw gas that has been freed of slag. The lower section of the immersion pipe is designed as a radially expanded gas distributor bell in the coolant bath. Said gas distributor bell is formed by a substantially conical jacket surface having a cross-section that expands downward, wherein the jacket surface has a plurality of gas passage openings, which are distributed over the circumference of the gas distributor bell. The dimensions of the gas passage openings increase with the immersion depth in the coolant bath.Type: GrantFiled: September 15, 2011Date of Patent: February 3, 2015Assignee: CCG Energy Technology Company Ltd.Inventors: Olaf Schulze, Dietmar Rüger, Anton Althapp, Michael Gätke, Burkhard Möller, Ralf Grunwald, Michael Grunwald, Monika Grunwald
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Patent number: 8894748Abstract: Horizontal duct scrubbing systems for removing particulate matter from a gas are disclosed. The horizontal scrubbing systems may receive a particulate-containing gas stream (e.g., containing PM10 and/or PM2.5 particulate matter), and remove at least some of such particulates by spraying liquid droplets co-current to the flow of the gas stream, where the liquid droplets have a volume median droplet diameter (DV0.5) of from 240 microns to 600 microns. The scrubbing system may be substantially free of flow deflection members between a liquid inlet manifold and a demister. The system may be remove at least 50 wt. % PM10 and/or PM2.5 particulate matter from the gas stream.Type: GrantFiled: March 14, 2013Date of Patent: November 25, 2014Assignee: Alcoa Inc.Inventors: Rajat S. Ghosh, Neal Richard Dando, Jay N. Bruggeman
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Patent number: 8858680Abstract: The present invention is directed to a method and a system for separating oxygen from air. A compressible air stream that contains oxygen is mixed in a substantially co-current flow with an incompressible fluid stream comprising an incompressible fluid in which oxygen is capable of being preferentially absorbed. Rotational velocity is imparted to the mixed streams, separating an incompressible fluid in which at least a portion of the oxygen is absorbed from other compressible components of the air stream. The compressible air stream may be provided at a stream velocity having a Mach number of at least 0.1.Type: GrantFiled: May 31, 2011Date of Patent: October 14, 2014Assignee: Shell Oil CompanyInventors: Frederik Arnold Buhrman, Jingyu Cui, Mahendra Ladharam Joshi, Stanley Nemec Milam, Scott Lee Wellington
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Patent number: 8808651Abstract: To provide a low price industrial salt by reducing facility and operation costs without electro-deposition and crystallization and through reduction in quantity of chemicals used. An industrial salt S obtained by the steps of: extracting a part of combustion gas from a kiln exhaust gas passage running from an inlet end 12b of a cement kiln 12 to a bottom cyclone 13; recovering dust D from the extracted gas G2 and washing recovered dust; and drying a filtrate L1 after the washing in a gas stream. The industrial salt can be obtained by removing a calcium component from the filtrate and drying the filtrate from which the calcium component is removed in a gas stream. Further, from the filtrate can be removed sulfate radical, and drying the filtrate from which the calcium component is removed in a gas stream to obtain the industrial salt. For the drying can be used an exhaust gas discharged from a clinker cooler 12a and a spray drier 43 may be used for the drying.Type: GrantFiled: April 15, 2009Date of Patent: August 19, 2014Assignee: Taiheiyo Cement CorporationInventors: Noritoshi Tamura, Shinichiro Saito, Yoshinobu Tatsumi
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Patent number: 8728211Abstract: A nozzle for spraying a liquid, comprising a central body which comprises a connecting portion for connecting the nozzle to a supply of liquid, an atomizing portion forming droplets of the liquid, and a liquid supply pipe forwarding liquid to the atomizing portion. The nozzle further comprises a sleeve mounted on the central body, the sleeve comprising a central aperture, which at least partly encloses the atomizing portion of the central body, and a spray angle controlling rim which at least partly encircles the atomizing portion.Type: GrantFiled: March 30, 2012Date of Patent: May 20, 2014Assignee: ALSTOM Technology LtdInventor: Per Hakan Fredrik Landmér
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Patent number: 8690993Abstract: The present invention provides a method and apparatus for the treatment of process gas from an anaerobic digestion system or a landfill gas system. In one embodiment, the system comprises a caustic scrubber including a vertical column having a top and a bottom and including a counter current flow system, wherein a process gas stream flows up vertically through the column in counter current flow to a caustic liquid solution that flows downward through the column. The caustic liquid solution removes at least one acid from the process gas stream, wherein treated gas that is substantially free of acids bubbles out through an opening at the top of the vertical column.Type: GrantFiled: August 16, 2013Date of Patent: April 8, 2014Assignee: Clean Energy Renewable Fuels, LLCInventor: Jeffrey J. Grill
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Patent number: 8673058Abstract: A method and arrangement for removing solid particles and tar component from carbon monoxide gas. In the method, carbon monoxide gas is conducted from a ferroalloy smelting furnace (1) to a gas scrubber (2), the carbon monoxide gas is scrubbed in the gas scrubber (2) by a liquid medium for removing part of the solid particles, the carbon monoxide gas is conducted from the gas scrubber to a blower (3), the flow rate of the carbon monoxide gas is increased by the blower (3), and the carbon monoxide gas is conducted to a particulate filter (5) and the remaining solid particles are essentially filtered in the particulate filter (5) from the carbon monoxide gas.Type: GrantFiled: December 21, 2009Date of Patent: March 18, 2014Assignee: Outotec OyjInventors: Tom Rönnberg, Stefan Hajek
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Patent number: 8657929Abstract: Presented is a method and apparatus for treating an exhaust gas. A series of filters and conditioning units are used to separate and extract various substances from the exhaust gas, typically originating from an industrial process. In an exemplary embodiment, a cyclone filter, a ceramic filter, a baghouse filter, and a pair of gas conditioners are used to initially separate and extract iron-rich dust from an exhaust gas and then extract zinc from the gas.Type: GrantFiled: February 19, 2013Date of Patent: February 25, 2014Assignee: Arcelormittal Investigacion y DesarrolloInventor: Naiyang Ma
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Patent number: 8641802Abstract: From the CO2-containing stream of process gas obtained in a process for the treatment of a CO2-containing stream of process gas, which is obtained in the production of pure synthesis gas from raw gas in the partial oxidation of heavy oils, petroleum coke or wastes, or in the gasification of coal, or when processing natural gas or accompanying natural gas, CO2 is removed physisorptively or chemisorptively, and the solvent loaded with CO2 is expanded to a lower pressure for the desorption of CO2. In order to generate CO2 as pure as possible, the contaminated CO2 is condensed to at least 60 bar[a] or below its critical temperature to at least 70 bar[a], and the impurities contained in the liquid CO2 are removed by stripping with gaseous CO2 guided in counterflow.Type: GrantFiled: September 5, 2008Date of Patent: February 4, 2014Assignee: LURGI GmbHInventors: Ulrich Koss, Manfred Meyer, Alexander Schriefl
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Patent number: 8628643Abstract: A fermentation liquid feed including water and a product alcohol and optionally CO2 is at least partially vaporized such that a vapor stream is produced. The vapor stream is contacted with an absorption liquid under suitable conditions wherein an amount of the product alcohol is absorbed. The portion of the vapor stream that is absorbed can include an amount of each of the water, the product alcohol and optionally the CO2. The temperature at the onset of the absorption of the vapor stream into the absorption liquid can be greater than the temperature at the onset of condensation of the vapor stream in the absence of the absorption liquid. The product alcohol can be separated from the absorption liquid whereby the absorption liquid is regenerated. The absorption liquid can include a water soluble organic molecule such as an amine.Type: GrantFiled: August 10, 2011Date of Patent: January 14, 2014Assignee: Butamax Advanced Biofuels LLCInventors: Michael Charles Grady, William D. Parten, Robert W. Sylvester, Joseph J. Zaher
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Patent number: 8628603Abstract: A method for treating a process gas with a liquid comprises contacting a process gas with a hygroscopic working fluid in order to remove a constituent from the process gas. A system for treating a process gas with a liquid comprises a hygroscopic working fluid comprising a component adapted to absorb or react with a constituent of a process gas, and a liquid-gas contactor for contacting the working fluid and the process gas, wherein the constituent is removed from the process gas within the liquid-gas contactor.Type: GrantFiled: September 23, 2011Date of Patent: January 14, 2014Assignee: Energy & Enviromental Research Center FoundationInventors: Christopher L. Martin, Ye Zhuang
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Publication number: 20130312607Abstract: The present invention relates to the use of (poly)-oxymethylene dialkyl ethers as agents for capturing carbon oxides, CO and/or CO2. The invention also relates to the process for capturing carbon oxides using at least one absorption agent chosen from said (poly)oxymethylene dialkyl ethers.Type: ApplicationFiled: October 18, 2011Publication date: November 28, 2013Applicant: Arkema FranceInventors: Dominique Plee, Georges Fremy
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Patent number: 8535425Abstract: A separation and scrubbing system for exhaust gases includes a plurality of industrial discharge outlets, a separation unit, pipelines to direct exhaust gases from the industrial discharge outlets to the separation unit and pipelines to return treated exhaust gases to stacks corresponding to the industrial discharge outlets.Type: GrantFiled: May 22, 2009Date of Patent: September 17, 2013Inventors: Quinn D. Rebryna, Ron E. Cookson
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Patent number: 8535429Abstract: The present invention provides a method and apparatus for the treat en of process gas from an anaerobic digestion system or a landfill gas system. In one embodiment, the system comprises a caustic scrubber including a vertical column having a top and a bottom and including a counter current flow system, wherein a process gas stream flows up vertically through the column in counter current flow to a caustic liquid solution that flows downward through the column. The caustic liquid solution removes at least one acid from the process gas stream, wherein treated gas that is substantially free of acids bubbles out through an opening at the top of the vertical column.Type: GrantFiled: October 18, 2011Date of Patent: September 17, 2013Assignee: Clean Energy Renewable Fuels, LLCInventor: Jeffrey J. Grill
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Patent number: 8529667Abstract: A process for the extraction of an unwanted material from a gas or liquid comprising the steps of introducing an extraction liquid into the fluid having an unwanted liquid therein to form a physical microdispersion comprising a plurality of extraction liquid droplets and the fluid, allowing the plurality of extraction liquid droplets to interact with the unwanted component in the fluid, to cause the extraction liquid droplets to be “wetted out” and captured on a porous medium, where the liquid is further contacted by the gas and simultaneously formed into a plurality of coalesceable droplets, coalescing the coalesceable droplets into larger droplets containing the unwanted liquid, and separating the larger droplets containing the unwanted liquid from the fluid.Type: GrantFiled: February 16, 2007Date of Patent: September 10, 2013Inventors: Matt Thundyil, Carl Hahn, Doug Mittlesteadt, Heath Burns, Martin Miller
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Patent number: 8512448Abstract: A multi-stage scrubbing system comprises a pre-scrubber system structured to receive a vent stream therein and pre-scrub the vent stream with a pre-scrubber fluid. The pre-scrubber system includes a first outlet for discharging a pre-scrubbed vent stream and a second outlet for discharging a discharge stream of pre-scrubber fluid. A main scrubber system is fluidly coupled to the first outlet of the pre-scrubber system for receiving and further scrubbing the pre-scrubbed vent stream.Type: GrantFiled: August 27, 2010Date of Patent: August 20, 2013Assignee: Integroenergy Group, Inc.Inventors: Daniel W. Sonnek, Gregory W. Loest
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Patent number: 8500894Abstract: A method of mixing an oxygen gas with a hydrocarbon-containing gas includes the steps of wet scrubbing the oxygen gas in a wet scrubber, supplying oxygen gas from the wet scrubber to a gas mixer and mixing the oxygen gas with the hydrocarbon-containing gas in the gas mixer. Wet scrubbers for use in the method may take various forms, including packed-tower, bubble cap, and sparger-type wet scrubbers. The removal of the particulate matter reduces the risk of ignition of the hydrocarbon-containing gas in the gas mixer. The use of a wet scrubber in the oxygen supply line overcomes many problems currently faced with screen and filters, as per current practice.Type: GrantFiled: November 12, 2008Date of Patent: August 6, 2013Assignee: Dow Technology Investments LLCInventors: Harvey E. Andresen, Christopher P. Christenson, Charles W. Lipp, John R. Mayer, Thomas J. Kling, Victor R. Fey, Laurence G. Britton, Michael J. Rangitsch, Michael L. Hutchison
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Patent number: 8475563Abstract: In a method of treating a gas stream, an aqueous scrubbing liquor is circulated through an essentially closed loop (20) comprising an electrochemical unit (48) for reducing the acidity of the liquor. A portion of the circulating liquor is diverted away from the closed loop (20) to a gas scrubbing unit (10). The gas stream enters the scrubbing unit (10), wherein an acid, for example HF and solid particulates, for example SiO2 particulates, within the gas stream dissolve in the diverted liquor. The diverted liquor is subsequently returned to the closed loop (20), and is replenished in the scrubbing unit (10) by fresh liquor diverted from the closed loop (20). A device (46) is provided for monitoring the acidity of the liquor at a location within the closed loop (20). The reduction in the acidity of the liquor by the electrochemical cell (48) is controlled depending on the monitored concentration.Type: GrantFiled: November 28, 2007Date of Patent: July 2, 2013Assignee: Edwards LimitedInventors: Philip Chandler, Christopher Peter Jones, Patrick Fletcher, Christopher Germain
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Patent number: 8454726Abstract: A solid absorbent for absorption of CO2 from flue gas, comprising: a) particles made of a cross bounded, highly porous polymer substrate, and b) CO2 absorbing functional nucleophilic groups grafted on the particle surface, is described. A method for CO2 sequestration using the absorbent is also described.Type: GrantFiled: February 26, 2009Date of Patent: June 4, 2013Assignee: Aker Clean Carbon ASInventor: Thomas Ranes Haugan
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Patent number: 8388747Abstract: Produced natural gas containing carbon dioxide is dehydrated and chilled to liquefy the carbon dioxide and then fractionated to produce a waste stream of liquid carbon dioxide and hydrogen sulfide. Natural gas liquids may be first separated and removed before fractionation. After fractionation, the waste stream is pressurized and transmitted to a remote injection well for injection either for disposal of the waste stream and preferably to urge hydrocarbons toward the producing well. A hydrocarbon stream proceeds from fractionation to a methanol absorber system which removes carbon dioxide gas. The hydrocarbon stream is thereafter separated into at least hydrocarbon gas, nitrogen and helium. Some of the nitrogen is reintroduced into a fractionation tower to enhance the recovery of hydrocarbons. A methanol recovery system is provided to recover and reuse the methanol. The hydrocarbons are sold as natural gas and the helium is recovered and sold. Excess nitrogen is vented.Type: GrantFiled: August 22, 2008Date of Patent: March 5, 2013Inventor: Donald Leo Stinson
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Patent number: 8337604Abstract: A system for removing unwanted contaminates from gases using a scrubber, which comprises a housing, a reaction chamber having a liquid level, an inlet connected to a source containing gases to be scrubbed with a contamination concentration greater than zero ppb to saturation. A gas exit port connected to the housing is used for evacuating scrubbed gas and a sintered permeable membrane is disposed across the reaction chamber, which provides a reaction zone in the plurality of pores when gases to be scrubbed are introduced to the membrane on a first side while the membrane is immersed in the lean liquid; and a cleaned gas on a second side wherein the clean gas initially has a drop in contamination concentration of at least 99 percent and gradually decreasing to 70 percent as additional gases to be scrubbed are introduced to the plurality of pores without replacing the lean liquid.Type: GrantFiled: July 27, 2011Date of Patent: December 25, 2012Assignee: Vapor Point, LLCInventors: Jefferey St. Amant, Kenneth R. Matheson, Keith Nathan
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Publication number: 20120297978Abstract: A method for removing impurities from a feed air gas stream prior to the stream being fed to a cryogenic distillation unit. The feed air gas stream contacts an ionic liquid which adsorbs the impurities from the air. The method can use one or more beds such as in pressure swing adsorption processes.Type: ApplicationFiled: December 2, 2010Publication date: November 29, 2012Inventors: Suling Zhai, Yaping Lu
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Publication number: 20120222557Abstract: Some embodiments described herein relate to ionic liquids comprising an anion of a heteraromatic compound such as optionally substituted pyrrolide, optionally substituted pyrazolide, optionally substituted indolide, optionally substituted phospholide, or optionally substituted imidazolide. Methods and devices for gas separation or gas absorption related to these ionic liquids are also described herein.Type: ApplicationFiled: November 3, 2010Publication date: September 6, 2012Applicant: UNIVERSITY OF NOTRE DAME DU LACInventors: William F. Schneider, Joan F. Brennecke, Edward J. Maginn, Elaine Mindrup, Burcu Gurkan, Erica Price, Brett Goodrich
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Publication number: 20120186993Abstract: A process for the absorption of one or more gas(es) selected from the group consisting of carbon dioxide, hydrogen sulfide, sulfur oxides, nitrogen oxides and carbon monoxide from a fluid, the process including: providing a fluid containing the selected gas(es); and an ionic liquid absorbent, the absorbent including the components: one or more anions; one or more metal species; and optionally one or more organic cations; and optionally one or more ligands; the absorbent components being selected such that the absorbent is in a liquid state at the operating temperature and pressure of the process; with the provisos that: when the anion contains in the same molecular entity: both an amine functional group and a sulfonate functional group; both an amine functional group and a carboxylate functional group; both a phosphine functional group and a sulfonate functional group; or both a phosphine functional group and a carboxylate functional group, the metal species is not an alkali metal or alkaline earth metal; theType: ApplicationFiled: July 29, 2010Publication date: July 26, 2012Applicant: COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATIONInventors: Junhua Huang, Thomas Rüther, Paul Feron, Zhengbo Zhang
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Publication number: 20120134905Abstract: A method of use of an ionic liquid for sorption of a gas having an electric multipole moment is provided, wherein the ionic liquid comprises an anion and a non-aromatic cation. In particular, the electric multipole moment may be an electric dipole moment and/or an electric quadrupole moment. The sorption may be an adsorption or an absorption. The ionic liquid may be a pure ionic liquid, i.e. a liquid substantially only containing anions and cations, while not containing other components, e.g. water. Alternatively a solution containing the ionic liquid and a solvent or further compound, e.g. water, may be used.Type: ApplicationFiled: June 22, 2010Publication date: May 31, 2012Applicant: VTU HOLDING GMBHInventor: Roland Kalb
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Patent number: 8119091Abstract: A method of carbon dioxide capture is disclosed. In a step (a) anhydrous sodium carbonate is separated from a first aqueous solution formed by reacting carbon dioxide and an aqueous solution of sodium hydroxide. In step (b) the anhydrous sodium carbonate is treated by causticization to generate carbon dioxide and sodium hydroxide. The first aqueous solution of step (a) is formed by scrubbing a gas containing carbon dioxide with an aqueous solution of sodium hydroxide.Type: GrantFiled: June 19, 2009Date of Patent: February 21, 2012Assignee: Carbon Engineering Limited PartnershipInventors: David Keith, Maryam Mahmoudkhani
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Publication number: 20120012002Abstract: To develop a means for effectively utilize terpene compounds contained in tree leaves, whereby branches and leaves cut in tree thinning and pruning can be effectively utilized as a resource. For this purpose, provided are a monoterpene component-rich essential oil containing 90% or more of monoterpene components; a method for producing the monoterpene component-rich essential oil which includes subjecting coniferous leaves to microwave steam distillation and collecting a distillate thus obtained; and a method for removing environmental pollutants which includes bringing the monoterpene component-rich essential oil into contact with atmosphere containing the environmental pollutants.Type: ApplicationFiled: February 26, 2010Publication date: January 19, 2012Applicant: Japan Aroma Laboratory Co., Ltd.Inventors: Toshihiko Kaneko, Yuichi Tanaka, Tatsuro Ohira, Naoyuki Matsui
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Patent number: 8043588Abstract: This invention relates to a method and plant for energy-efficient removal of CO2 from a gas phase by means of absorption. The invention is particularly suitable for use in connection with thermal power plants fired by fossil fuels, and is also well-suited for retrofitting in existing thermal power plants. A processing plant according to the invention comprises three sections: a primary CO2-generating process that serves as main product supplier; a CO2-capture and separation plant based on absorption and desorption of CO2 respectively by/from at least one absorbent; and a second CO2-generating process where combustion of carbonaceous fuel in pure oxygen atmosphere serves as energy supply to at least a part of the thermal energy necessary to drive the regeneration of the absorbent in the desorption column(s).Type: GrantFiled: January 12, 2007Date of Patent: October 25, 2011Assignees: CO2-Norway AS, Nebb Engineering ASInventors: Carl W. Hustad, Ingo Tronstad
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Patent number: 8038773Abstract: A method of reducing pollutants exhausted into the atmosphere from the combustion of fossil fuels. The disclosed process removes nitrogen from air for combustion, separates the solid combustion products from the gases and vapors and can capture the entire vapor/gas stream for sequestration leaving near-zero emissions. The invention produces up to three captured material streams. The first stream is contaminant-laden water containing SOx, residual NOx particulates and particulate-bound Hg and other trace contaminants. The second stream can be a low-volume flue gas stream containing N2 and O2 if CO2 purification is needed. The final product stream is a mixture comprising predominantly CO2 with smaller amounts of H2O, Ar, N2, O2, SOX, NOX, Hg, and other trace gases.Type: GrantFiled: May 24, 2007Date of Patent: October 18, 2011Assignee: Jupiter Oxygen CorporationInventors: Thomas L. Ochs, Cathy A. Summers, Steve Gerdemann, Danylo B. Oryshchyn, Paul Turner, Brian R. Patrick
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Patent number: 7988909Abstract: A method and apparatus for conditioning the air within an interior area, includes a fan, a first module receiving air from the fan and preferably a first liquid, and a second module receiving air from the first module and preferably including a second liquid. The modules are preferably stacked, whereby air enters the fan module on the bottom and is delivered to the environment from the second module at the top. The air flows from the fan along a pathway which prevents liquid from escaping from the modules other than as vapor entrained in the air. The first liquid is preferably an aqueous alkaline solution, and the second liquid preferably includes a disinfectant and/or a buffer to neutralize the alkaline before air is delivered to the environment. The modules may have an inner wall and an outer wall presenting a dead-air space therebetween.Type: GrantFiled: May 20, 2010Date of Patent: August 2, 2011Inventor: Ying Gang Ruan
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Patent number: 7967895Abstract: For regenerating the loaded washing (scrubbing) agent (6, 7) from a physical gas wash (T1), in which one or more gas components are removed, to a large extent selectively, from a gas mixture (1) to be purified at least in a first of at least two successive washing steps, the loaded washing agent (7) withdrawn from the first washing step is, independently of the remaining quantity of loaded washing agent (6), subjected to a regeneration step (T2a) for separating the gas components (11) which have been selectively removed from the raw gas in the first washing step.Type: GrantFiled: March 27, 2007Date of Patent: June 28, 2011Assignee: Linde AGInventors: Ulrich Prüssner, Horst Weiss
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Patent number: 7951227Abstract: This disclosure teaches a composition and process which makes it possible to remove floating particulates or prevent the dissemination or particulates, by the misting of a solution that readily captures any particulate material in the air. More specifically, the present disclosure teaches the composition and use of aromatic compounds that are semi-volatile organic compounds (SVOCs) or slow evaporators in water-based carriers with surfactants as the misting/fogging agent for dust suppression. The particulate material is lowered to surfaces and removed by vacuuming, damp-wiping or using a dry cloth with a cationic charge (static cloth). This method can be achieved with neutral air pressure differentials in the work areas.Type: GrantFiled: June 4, 2008Date of Patent: May 31, 2011Inventors: Greg Weatherman, Marcia Celusnek Cash
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Publication number: 20110088554Abstract: Process for removing acid gases from a gas stream, in particular from a natural gas stream, synthesis gas stream or the like, wherein the acid gases are absorbed from the gas stream by at least one absorbent. The absorbent used is a mixture of a physical scrubbing medium, a chemical scrubbing medium and water. The absorbent comprises more than 60% by weight of the physical scrubbing medium, wherein the physical scrubbing medium used is a morpholine derivative and a chemical scrubbing medium based on at least one aliphatic amine compound is used.Type: ApplicationFiled: June 26, 2009Publication date: April 21, 2011Inventor: Johannes Menzel
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Publication number: 20100192770Abstract: An absorption medium for removing acid gases from a fluid stream comprises an aqueous solution of A) at least one cyclic amine compound having solely tertiary amine groups and/or sterically hindered secondary amine groups and B) at least one cyclic amine compound having at least one sterically unhindered secondary amine group. The absorption medium comprises, e.g., an aqueous solution of A) 1-hydroxyethylpiperidine and/or triethylenediamine and B) piperazine. The absorption medium is particularly suitable for separating off carbon dioxide from flue gases and satisfies the following criteria: (i) sufficient capacity at low CO2 partial pressures; (ii) sufficiently rapid absorption rate at low CO2 partial pressures; (iii) stability toward oxygen; (iv) low vapor pressure for reducing solvent losses; and (v) low energy requirement for regeneration of the absorption medium.Type: ApplicationFiled: February 2, 2010Publication date: August 5, 2010Applicant: BASF SEInventors: Hugo Rafael Garcia Andarcia, Ute Lichtfers, Georg Sieder, Oliver Spuhl, Steven Brughmans
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Patent number: 7758673Abstract: The present invention relates to a process for removing carbon dioxide and optionally hydrogen sulphide and/or COS from a gas stream containing these compounds by washing the gas with an aqueous washing solution containing water, sulfolane and a secondary or tertiary amine derived from ethanolamine. More particularly the invention relates to the process described above, the process being carried out in the presence of a primary or secondary amine compound in an amount between 0.5 and 15 wt. % based on water, sulfolane and amine. The invention further relates to an absorbent liquid to be used in the above process.Type: GrantFiled: January 14, 2003Date of Patent: July 20, 2010Assignee: Shell Oil CompanyInventors: Theodorus Johannes Brok, Rudolf Johannes Mathilda Groenen, Jeanine Marie Klinkenbijl, Mariette Catharina Knaap
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Publication number: 20100154637Abstract: The invention relates to a process for the purification of a gaseous mixture containing mercaptans and other acid gases comprising a stage of bringing said gaseous mixture into contact with an absorbent solution comprising an alkanolamine, a C2-C4 thioalkanol and water.Type: ApplicationFiled: January 16, 2007Publication date: June 24, 2010Inventor: SERGE CAPDEVILLE
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Patent number: 7736420Abstract: The invention relates to an improvement in apparatus and process for the formation of a complex of Lewis acidic or Lewis basic gases in a reactive liquid of opposite character and for the breaking (fragmentation) of said complex associated with the recovery of the Lewis gas therefrom. The improvement resides in forming finely divided droplets of reactive liquid and controlling the temperature, pressure and concentration of said Lewis gas of opposite character to provide for (a) the formation of said complex between said gas and reactive liquid or (b) the breaking of said complex and the recovery of the atomized droplets of reactive liquid.Type: GrantFiled: May 19, 2006Date of Patent: June 15, 2010Assignee: Air Products and Chemicals, Inc.Inventors: Wayne Thomas McDermott, Philip Bruce Henderson, Daniel Joseph Tempel, Ronald Martin Pearlstein, James Joseph Hart, Rosaleen Patricia Morris-Oskanian, Diwakar Garg
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Patent number: 7731781Abstract: The invention provides methods and apparatuses for removing aerosols and, in some cases, vapor phase contaminants, such as mercury, from a gas stream. One method is directed to the removal of additional aerosols from a gas stream from which aerosols have previously been removed by using a screen in combination with a primary aerosol collection device. Another method is directed to the removal of both aerosols and vapor phase contaminants by using a sorbent in combination with a screen. Another method is directed to the removal of vapor phase contaminants by using a catalyst to convert the contaminant to a form that is more easily removed from the gas stream and optionally injecting a chemical to increase the rate of conversion. The invention also provides various apparatuses for use in performing the various methods of the invention.Type: GrantFiled: September 14, 2007Date of Patent: June 8, 2010Assignee: Electric Power Research Institute, Inc.Inventors: Mark Simpson Berry, Ramsay Chang
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Patent number: 7714180Abstract: A process and apparatus for recovering product from reactor effluent of a reactor for a hydrocarbon feedstream is disclosed. An indigenous C4 stream is used as lean oil in a demethanizer, which facilitates significant cost and operational savings. C4 bottoms from a downstream depropanizer is used as lean oil recycle.Type: GrantFiled: August 16, 2007Date of Patent: May 11, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: David J Duhon, John E Asplin
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Publication number: 20100028821Abstract: A fine dust removal system for a rotary lime kiln includes a preheater adjacent the charging end of the kiln and a housing adjacent to and communicating with kiln charging end, such that a major portion of not off-gases containing solid particulates are diverted to the preheater and a minor portion thereof directed into the housing. At least a portion of the solid particulates is separated from the hot off-gases in the housing, while the hot off-gases leaving the housing, after solid particulate removal, are directed into the preheater.Type: ApplicationFiled: July 29, 2008Publication date: February 4, 2010Inventors: Robert A. Gavenda, William H. Schoof
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Publication number: 20090291874Abstract: The present application discloses compositions comprising ionic liquids and an amine compound, and methods for using and producing the same. In some embodiments, the compositions disclosed herein are useful in reducing the amount of impurities in a fluid medium or a solid substrate.Type: ApplicationFiled: May 21, 2009Publication date: November 26, 2009Inventors: Jason E. Bara, Dean E. Camper, Richard D. Noble, Douglas L. Gin
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Patent number: 7604685Abstract: A process for the extraction of an unwanted material from a gas comprising the steps of introducing an extraction liquid into a fluid having an unwanted liquid therein to form a physical aerosol comprising a plurality of extraction liquid droplets and the fluid, allowing the plurality of extraction liquid droplets to interact with the unwanted liquid in the gas to cause the extraction liquid droplets to be “wetted out” and captured on a porous medium, where the liquid is further contacted by the gas and simultaneously formed into a plurality of coalesceable droplets, coalescing the coalesceable droplets into larger droplets containing the unwanted liquid, and separating the larger droplets containing the unwanted liquid from the fluid.Type: GrantFiled: November 22, 2004Date of Patent: October 20, 2009Assignee: Porous Media CorpInventors: Matt Thundyil, Michael Spearman, Martin Miller, Doug Mittlesteadt, Heath Burns, Carl Hahn
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Method of removing carbon monoxide from an oxygen carrier and apparatus for removing carbon monoxide
Patent number: 7601201Abstract: A method of removing carbon monoxide from an oxygen carrier including setting a carbon monoxide bonded oxygen carrier solution across a separation membrane from an oxygen-dissolved solution; and exposing the setting part to the light and a method of removing carbon monoxide from an oxygen carrier including setting a carbon monoxide oxygen carrier solution across a hollow fiber separation membrane from an oxygen-dissolved solution; and exposing the setting part to light.Type: GrantFiled: April 13, 2006Date of Patent: October 13, 2009Assignee: Nipro CorporationInventors: Ippei Fukutomi, Toshiya Kai, Naohisa Katayama, Takeshi Nizuka, Yoshinori Kida -
Publication number: 20090233155Abstract: Carbon dioxide or other gases can be separated from gas streams using ionic liquid, such as in an electrochemical cell. For example, a membrane can contain sufficient ionic liquid to reduce ionic current density of at least one of protons and hydroxyl ions, relative to carbon-containing ionic current density. A gas stream containing carbon dioxide can be introduced on a cathode side, while a source of hydrogen gas can be introduced on the anode side of the membrane. Operation of an electrochemical cell with such a membrane can separate the carbon dioxide from the gas stream and provide it at a separate outlet.Type: ApplicationFiled: March 17, 2008Publication date: September 17, 2009Inventor: Karl Anthony Littau
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Patent number: 7572320Abstract: A method for removing high concentration ozone from a waste gas stream is disclosed, which includes the following steps: (1) providing an apparatus, which includes: a tank having an input port, an exhaust port and a packing, wherein the input port is near the bottom of the tank, the exhaust port is on the top of the tank, and the packing is contained in the tank; a liquid injection element for injecting reductant solution through the packing; and a storage vessel connecting to the liquid injection element; (2) transporting a gas into the tank through the input port for contacting the reductant solution; and (3) the gas exiting the reactor by way of the exhaust port.Type: GrantFiled: August 31, 2005Date of Patent: August 11, 2009Assignee: Industrial Technology Research InstituteInventors: Shaw-Yi Yan, Sheng-Jen Yu, Shou-Nan Li, Chang-Fu Hsu, Ping-Chung Chung
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Patent number: 7563307Abstract: A process for separating the components of a multi-component gas stream is disclosed. The multi-component gas stream is contacted with a solvent in an extractor to produce an overhead stream enriched with unabsorbed component(s) and a rich solvent bottoms stream enriched with absorbed component(s). The rich solvent bottoms stream is then flashed at reduced pressure to regenerate lean solvent and to recover the absorbed component(s) as an overhead stream. The regenerated solvent is recycled to the extractor. A portion of the circulating solvent comprises external solvent added to the system. A second portion of the circulating solvent comprises internal solvent contained in the feed gas.Type: GrantFiled: August 23, 2005Date of Patent: July 21, 2009Assignee: Advanced Extraction Technologies, Inc.Inventor: Thomas K. Gaskin
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Publication number: 20090049986Abstract: A method of scrubbing flue gases of two or more diesel engines and a scrubber for scrubbing flue gases of two or more diesel engines. The scrubber (1) comprises scrubbing means (3) for scrubbing the flue gases, and conduits (4) for conveying the flue gases to said scrubbing means (3) to be scrubbed in the same scrubbing process. The different flue gas flows are arranged to be conveyed in separate conduits (4) all the way to the scrubbing means (3).Type: ApplicationFiled: October 31, 2005Publication date: February 26, 2009Inventors: Pekka Kaisko, Heikki Airikkala, Tarja Korhonen, Seppo Tuominiemi
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Patent number: 7431900Abstract: 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: GrantFiled: February 28, 2003Date of Patent: October 7, 2008Assignee: Steris IncInventors: Aaron L. Hill, Arthur T. Nagare, Frank E. Dougherty, Stanley M. Voyten