Waste Gas Purifier Patents (Class 422/168)
  • Publication number: 20140161678
    Abstract: The present invention relates to a scrubber system having an automatic generator for an oxidizing-absorbing agent. The scrubber system comprises a scrubber and an oxidizing-absorbing agent generator. The scrubber includes a pollutant gas inlet through which air pollutants are introduced, a treated gas outlet through which the pollutant gas which has been treated is discharged, and a treated water outlet through which wastewater which has been used to treat the pollutant gas is discharged. The oxidizing-absorbing agent generator generates an oxidizing-absorbing agent by electrolyzing saline water or seawater in the scrubber, and supplies the generated oxidizing-absorbing agent into the scrubber to treat the pollutant gas introduced through the pollution gas inlet, thereby removing harmful substances.
    Type: Application
    Filed: February 18, 2014
    Publication date: June 12, 2014
    Applicant: TECHWIN CO., LTD.
    Inventors: Hyun Su Shin, Jung Sik Kim, Boong Ik Jung
  • Publication number: 20140161677
    Abstract: An exhaust gas treatment device, which includes an outer layer, an inner layer that is at least in part disposed within the outer layer, and a loose-fill insulation disposed in the volume between the outer layer and the inner layer, where a piece of fiber mat is disposed between the outer layer and the inner layer and forms a barrier that at least partially prevents the loss of the loose-fill insulation from the volume between the outer layer and the inner layer and a manufacturing method that includes placing a loose-fill insulation into the volume of space between an inner layer and an outer layer and positioning a piece of fiber mat between the outer layer and the inner layer to form a barrier that at least partially prevents the loss of the loose-fill insulation from the volume of space between the outer and inner layers.
    Type: Application
    Filed: November 20, 2013
    Publication date: June 12, 2014
    Inventors: Ruth Ann Latham, William V. Alcini, Michael A. Golin, Michael Joseph Torzewski, Steven A. Freis, Mark Ernest Kluesner, Gabriel S. Salanta, Stephen Joe Myers
  • Publication number: 20140161696
    Abstract: The present invention relates to a cement manufacturing plant includes a system for capturing carbon dioxide (CO2) from an exhaust gas stream generated in the kiln 110 of the cement manufacturing plant by using regenerative calcium cycle (RCC) into the cement manufacturing process. Also, the invention relates to a method of capturing carbon dioxide CO2 from a carbon dioxide CO2 rich exhaust gas stream generated in a cement kiln, wherein the method includes recirculation of the carbon dioxide CO2 rich exhaust gas stream to a unit for carbonization.
    Type: Application
    Filed: February 12, 2014
    Publication date: June 12, 2014
    Inventor: Olaf STALLMANN
  • Publication number: 20140161699
    Abstract: An apparatus for recycling exhaust gas includes a vessel containing a reversible ammonia sorber material which is exothermic when sorbing (“loading”) ammonia and which is endothermic when releasing (“unloading”) ammonia. A first valve selectively couples a source of exhaust gas including ammonia to a first port of the vessel, a second valve selectively couples a vacuum pump to the vessel, and a third valve selectively coupling a second port of the vessel to an output. A controller opens and closes the first valve, the second valve and the third valve to implement a loading phase, an intermediate venting phase and an unloading phase for the vessel.
    Type: Application
    Filed: November 20, 2013
    Publication date: June 12, 2014
    Applicant: SAES Pure Gas, Inc.
    Inventors: Charles Applegarth, Lawrence A. Rabellino, Sarah Vogt, Marco Succi, Cristian Landoni
  • Patent number: 8747766
    Abstract: A hydrogen separation membrane comprising a palladium alloy that includes at least palladium, an added metal A, and an added metal B, the added metal A and the added metal B being two different metals other than palladium, each of the added metal A and the added metal B forming a complete solid solution with palladium, and the added metal A and the added metal B having a triple point in an equilibrium diagram and not forming an intermetallic compound. The hydrogen separation membrane exhibits excellent hydrogen permeability and durability.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: June 10, 2014
    Assignee: NGK Insulators, Ltd.
    Inventor: Kenichi Noda
  • Patent number: 8747496
    Abstract: A fuel processor for producing a hydrogen-containing product stream from a fuel stream and an oxidant stream, comprises a mixing tube from which the combined fuel and oxidant stream is directed substantially axially into a reaction chamber. The reaction chamber comprises a turn-around chamber and a turn-around wall at one end for re-directing the combined reactant stream, so that in the turn-around chamber the re-directed stream surrounds and is in contact with the combined reactant stream flowing substantially axially in the opposite direction. This design and opposing flow configuration creates a low velocity zone which stabilizes the location of a flame in the fuel processor and offers other advantages.
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: June 10, 2014
    Assignee: Westport Power Inc.
    Inventors: Jacobus Neels, Xuantian Li, Richard Allan Sederquist, Andre Boulet, William Allison Logan
  • Patent number: 8747761
    Abstract: An exhaust gas purification device with a first exhaust pipe section for leading exhaust gas discharged from an engine, a second exhaust pipe section having in a side section on an upstream side thereof an opening section for introducing exhaust gas from the first exhaust pipe section, the second exhaust pipe section being connected at a side section thereof to the first exhaust pipe section so that flow of exhaust gas therein becomes a swirl flow and having provided on a downstream side thereof a post-processing device, and a reduction agent supply device provided at an upstream end of the second exhaust pipe section. The opening section is formed so as to include at least a first tilted side extending in a direction tilted relative to an axis of the second exhaust pipe section.
    Type: Grant
    Filed: May 16, 2011
    Date of Patent: June 10, 2014
    Assignee: Isuzu Motors Limited
    Inventors: Yuuta Kageyama, Isao Ohara
  • Patent number: 8747788
    Abstract: An aftertreatment module for use with an engine is disclosed. The aftertreatment module may include a housing having an inlet configured to direct exhaust in a first flow direction into the aftertreatment module, and an outlet configured to direct exhaust in the first flow direction out of the aftertreatment module. The aftertreatment module may also include a catalyst bank separating the inlet from the outlet. The catalyst bank may have a face disposed at an oblique angle with respect to the first flow direction. The oblique angle may create an inlet passage extending from the inlet to the catalyst bank and having a decreasing cross-sectional area, and an outlet passage extending from the catalyst bank to the outlet and having an increasing cross-sectional area.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: June 10, 2014
    Assignee: Caterpillar Inc.
    Inventors: Mirza Pervaiz Baig, Andrew Michael Denis, Raymond Bassilli Gerges, Raymond Upano Isada
  • Publication number: 20140154142
    Abstract: A diesel exhaust fluid (DEF) injector assembly is provided for use in an engine exhaust after-treatment system. The DEF injector assembly includes an injector body having a fluid inlet and a fluid outlet that delivers the DEF to an engine exhaust stream. The DEF injector assembly may also include a valve that opens and closes the fluid outlet of the injector body. An exemplary DEF injector assembly further includes an impact structure with an inclined impact surface that disperses and distributes the injected DEF into the engine exhaust stream. Another exemplary DEF injector assembly further includes a shroud that insulates the injector body.
    Type: Application
    Filed: December 5, 2012
    Publication date: June 5, 2014
    Inventors: Claude M. Johnson, Mark Yragui, Herman Van Niekerk, Farzan Roshdieh
  • Publication number: 20140154162
    Abstract: A reaction-based process developed for the selective removal of CO2 from a multicomponent gas mixture to provide a gaseous stream depleted in CO2 compared to the inlet CO2 concentration. The proposed process effects the separation of CO2 from a mixture of gases by its reaction with metal oxides. The Calcium based Reaction Separation for CO2 (CaRS—CO2) process consists of contacting CO2 laden gas with CaO in a reactor such that CaO captures CO2 by the formation of CaCO3. CaCO3 is regenerated by calcination leading to the formation of fresh CaO sorbent and the evolution of a concentrated stream of CO2. The “regenerated” CaO is then recycled for the further capture of CO2. This carbonation-calcination cycle forms the basis of the CaRS—CO2 process. This process also may use a mesoporous CaCO3 structure that attains >90% conversion over multiple carbonation and calcination cycles.
    Type: Application
    Filed: May 13, 2013
    Publication date: June 5, 2014
    Applicant: The Ohio State University
    Inventor: The Ohio State University
  • Publication number: 20140154158
    Abstract: An apparatus and method for removing sulfur dioxide from a flue gas is described. The apparatus has sequentially operable scrubbing zone and regeneration zone, which communicate with one another via a molten eutectic mixture of lithium, sodium and potassium carbonates. In the scrubbing zone, an ingress flue gas interacts with the molten carbonates, resulting in chemical absorbance of the sulfur dioxide and in discharge of reaction gases. In the regeneration zone, ether a chemical or electrochemical melt regeneration takes place resulting in formation of sulfur-containing vapor which is cooled down for converting the sulfur-containing vapor into a liquid and solid phase for a further collection and utilization.
    Type: Application
    Filed: June 21, 2012
    Publication date: June 5, 2014
    Applicant: YEDA RESEARCH AND DEVELOPMENT CO. LTD.
    Inventors: Igor Lubomirsky, Valery Kaplan
  • Patent number: 8741246
    Abstract: Systems containing imidazoles or blends of imidazoles and amines are described herein. Methods of their preparation and use are also described herein. The methods of using the systems include the reduction of volatile compounds from gas streams and liquid streams.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: June 3, 2014
    Assignee: Board of Trustees of the University of Alabama
    Inventor: Jason E. Bara
  • Patent number: 8734747
    Abstract: A method for treating exhaust gas is provided, which includes measuring SO3 concentration in the exhaust gas which contains at least SO2 and SO3 by using an SO3 gas analyzer; injecting fine particles into the exhaust gas after the step of measuring; cooling the exhaust gas after the step of injection, by recovering heat from the exhaust gas; collecting fly ash from the cooled exhaust gas; and removing at least SO2 from the exhaust gas after the step of collecting by absorbing the SO2 with an absorbing solution. In addition, an apparatus for treating exhaust gas is provided, which includes an SO3 gas analyzer; a fine particles injector; a heat exchanger; an electrostatic precipitator; an absorption tower; and a fine particle feed controller.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: May 27, 2014
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventor: Satoru Sugita
  • Publication number: 20140140898
    Abstract: A wet scrubber (1) and a method of using the wet scrubber to clean a process gas containing sulphur dioxide comprising at least one spray level system (20) with atomizing nozzles (38) to which an absorption liquid is supplied for atomization by the nozzles (38). The method comprises operating the spray level system (20) in at least a first operating mode with an active nozzle density of at least 0.7 nozzles/m2, an absorption liquid flow of at least 10 m3/hour per nozzle and a Total Flow of at least 30 m3/hour/m2.
    Type: Application
    Filed: January 27, 2014
    Publication date: May 22, 2014
    Inventor: Rikard Hakansson
  • Publication number: 20140140911
    Abstract: An exhaust system for a compression ignition engine comprising an oxidation catalyst for treating carbon monoxide (CO) and hydrocarbons (HCs) in exhaust gas from the compression ignition engine, wherein the oxidation catalyst comprises: a platinum group metal (PGM) component selected from the group consisting of a platinum (Pt) component, a palladium (Pd) component and a combination thereof; an alkaline earth metal component; a support material comprising a modified alumina incorporating a heteroatom component; and a substrate, wherein the platinum group metal (PGM) component, the alkaline earth metal component and the support material are disposed on the substrate.
    Type: Application
    Filed: November 21, 2013
    Publication date: May 22, 2014
    Applicant: Johnson Matthey Public Limited Company
    Inventors: David BERGEAL, Andrew Francis CHIFFEY, John Benjamin GOODWIN, Daniel HATCHER, Francois MOREAU, Agnes RAJ, Raj Rao RAJARAM, Paul Richard PHILLIPS, Cathal PRENDERGAST
  • Publication number: 20140140897
    Abstract: An exhaust gas treatment device, which includes an outer layer, an inner layer that is at least in part disposed within the outer layer, and a loose-fill insulation disposed in the volume between the outer layer and the inner layer, where a piece of fiber mat is disposed between the outer layer and the inner layer and forms a barrier that at least partially prevents the loss of the loose-fill insulation from the volume between the outer layer and the inner layer and a manufacturing method that includes placing a loose-fill insulation into the volume of space between an inner layer and an outer layer and positioning a piece of fiber mat between the outer layer and the inner layer to form a barrier that at least partially prevents the loss of the loose-fill insulation from the volume of space between the outer and inner layers.
    Type: Application
    Filed: March 14, 2013
    Publication date: May 22, 2014
    Inventors: Ruth Ann Latham, William V. Alcini, Michael A. Golin, Michael Joseph Torzewski, Steven A. Freis, Mark Ernest Kluesner, Gabriel S. Salanta, Stephen Joe Myers
  • Patent number: 8728420
    Abstract: A wet scrubber for removal of at least one gaseous pollutant from an effluent gas includes an inlet opening. A gas distributor is arranged in a wet scrubber housing and comprises a diffuser having a cover plate. The cover plate is arranged in the path of the effluent gas flowing into the wet scrubber housing. The diffuser has at least one diffuser channel for transporting the effluent gas from the inlet opening into the wet scrubber housing.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: May 20, 2014
    Assignee: ALSTOM Technology Ltd
    Inventor: Odd Edgar Bjarno
  • Patent number: 8728401
    Abstract: The pleated filter bag, which can be used in a bag-house type dust collector, is elongated and has a longitudinal hollow center with an open end, and a pleated filter wall circumscribing the hollow center. The pleated filter wall has a felt such as PTFE fibers felted onto an apertured and pleatable scrim which can be made of metal, and having a permeability lower than a permeability of the scrim. A membrane of lower-permeability material, such as an E-PTFE membrane, covers the support felt on the outer side of the bag.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: May 20, 2014
    Assignee: Sefar BDH, Inc.
    Inventors: Luc Parent, Sylvain Vieuille
  • Patent number: 8728421
    Abstract: The present invention relates to environmental protection field. The present invention provided a method and a system thereof for treating flue gases generated from waste incinerator by using a dual-purpose reactor, wherein said dual-purpose reactor includes a connected incineration chamber and gas-solid suspension chamber. The method and the system of the invention can continuous operate under high temperature and remove acid gases and dioxin or dioxin precursor completely.
    Type: Grant
    Filed: December 26, 2011
    Date of Patent: May 20, 2014
    Assignee: Satarem Technologies Limited
    Inventor: Ching Chiu Leung
  • Patent number: 8728400
    Abstract: Collection enhanced materials, flue gas additives, and methods of making the enhanced materials and flue gas additives are provided. In one embodiment, a down stream addition system configured to control material passing through a metering device from a vessel to a gaseous exhaust path extending between a unit and an exhaust flue of the unit is provided. In alternative embodiments, methods are provided for introducing at least one of a flue gas additive and a collection enhanced material to a gaseous exhaust stream exiting a unit; exposing and removing at least a portion of at least one a of flue gas additive and a collection enhanced material from a gaseous exhaust stream exiting a unit prior to entering an exhaust flue; and recycling at least a portion of material removed a from a gaseous exhaust stream exiting a unit back to the gaseous exhaust stream without passing through the unit.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: May 20, 2014
    Assignee: Intercat Equipment, Inc.
    Inventors: Martin Evans, Raymond Paul Fletcher, Mehdi Allahverdi, Guido Aru, Paul Diddams, Xunhua Mo, William Reagan, Shanthakumar Sithambaram
  • Patent number: 8728423
    Abstract: A method for flue gas treatment includes branching part of a flue gas stream emitted from a gas turbine from an upstream side or a downstream side of an exhaust heat recovery boiler and subjecting the branched part to combustion with a fuel in an auxiliary boiler so as to increase carbon dioxide concentration in the branched part prior to recombining the flue gas stream from the auxiliary boiler with the remaining part of the flue gas stream from the gas turbine to form a combined flue gas stream having a carbon dioxide concentration for efficient recovery in a carbon dioxide recovery apparatus.
    Type: Grant
    Filed: April 7, 2008
    Date of Patent: May 20, 2014
    Assignees: Mitsubishi Heavy Industries, Ltd., Occidental Energy Ventures Corp.
    Inventors: Masaki Iijima, Hasham Mukadam, Ronald M. Weiner
  • Publication number: 20140134085
    Abstract: An apparatus is provided for injecting and mixing a treating agent into a fluid stream. The apparatus comprises at least one pipe having a treating agent flowing therethrough. A flow mixer having a planar middle section with two furcated sides is disposed along the length of the pipe. Each furcated side may include at least two branches, each of which may have a flattened outer edge. The pipe has holes that may inject the treating agent towards the planar middle section. Adjacent flow mixers are separated by a distance. As fluid flows into and past the flow mixers, the injected treating agent is mixed with the fluid stream and the mixing is enhanced in turbulent mixing zones in between the flow mixers.
    Type: Application
    Filed: November 14, 2012
    Publication date: May 15, 2014
    Applicant: ATCO STRUCTURES & LOGISTICS LTD.
    Inventors: VALENTINA IVANOVA, JEFFREY PHILIP WIRT
  • Patent number: 8722003
    Abstract: A system and method of capturing carbon dioxide from a flow of raw synthesis gas generated in a gasification system are provided. The carbon capture system includes an acid gas removal subsystem configured to generate a flow of reduced acid gas content syngas, a flow of hydrogen sulfide (H2S) lean gas, and a first flow of H2S-rich gas from a stream of particulate-free raw syngas, an H2S selective membrane separator, said H2S selective membrane separator configured to separate the flow of H2S-lean gas from the AGR into a second flow of H2S-rich gas and a flow of CO2 gas, and a sulfur recovery unit (SRU) coupled in flow communication with said H2S membrane separator downstream of said membrane separator, said SRU configured to generate a flow of elemental sulfur and a flow of tail gas from the first flow of H2S-rich gas and the second flow of H2S-rich gas.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: May 13, 2014
    Assignee: General Electric Company
    Inventors: Aaron John Avagliano, John Saunders Stevenson
  • Publication number: 20140127083
    Abstract: A method of treating tough inorganic fiber bundles including opening a plurality of the tough inorganic fiber bundles such that tough inorganic fibers can be dispersed in a liquid slurry to lay down a homogenous fiber aggregate, wherein the tough inorganic fibers have a crush settle volume of greater than 250 ml, optionally greater than 450 ml. Also, a method of treating tough inorganic fiber bundles including dispersing a plurality of the tough inorganic fiber bundles in a slurry with a dilution of about 0.1% to about 2%, optionally about 0.1% to about 1%, effective to lay down a homogenous fiber aggregate, wherein the tough inorganic fibers have a crush settle volume of greater than 250 ml, optionally greater than 450 ml.
    Type: Application
    Filed: November 1, 2013
    Publication date: May 8, 2014
    Inventors: Kelvin WEEKS, Adam Kelsall
  • Publication number: 20140127119
    Abstract: The present invention provides a carbon dioxide absorber capable of efficiently and stably removing carbon dioxide in a gas or solution. This carbon dioxide absorber contains an amine compound, a weakly acidic compound and water, the pKb value of the amine compound in an aqueous solution at 30° C. is 4.0 to 7.0, the pKa value of the weakly acidic compound in an aqueous solution at 30° C. is 7.0 to 10.0, and the weakly acidic compound is present in an amount within the range of 0.01 equivalents to 1.50 equivalents with respect to amino groups of the amine compound.
    Type: Application
    Filed: June 8, 2012
    Publication date: May 8, 2014
    Applicant: ASAHI KASEI KABUSHIKI KAISHA
    Inventors: Norikazu Fujimoto, Kyouhei Hattori, Fumihiko Yamaguchi
  • Patent number: 8715600
    Abstract: A circulating dry scrubber flue gas desulfurization system is disclosed. Hydrated lime is injected into the flue gas upstream of the CDS vessel. The flue gas then passes through a baghouse, where solids are captured. At least a portion of the solids are recycled. The recycle path runs from the baghouse to a splitter, where the solids are divided between the injection points. No distribution box is needed, which permits lowering the height and/or restructuring the location of many components of the system, reducing costs as well as improving or maintaining removal of combustion byproducts from the flue gas.
    Type: Grant
    Filed: May 16, 2013
    Date of Patent: May 6, 2014
    Assignee: Babcock & Wilcox Power Generation Group, Inc.
    Inventor: Jeb W Gayheart
  • Publication number: 20140120001
    Abstract: A wall flow type particulate filter (24) adapted to be arranged in an exhaust passage of an internal combustion engine in which combustion is performed in an excess of oxygen carries a solid acid. The solid acid has an acid strength which is higher than the acid strength of sulfurous acid and lower than the acid strength of sulfuric acid.
    Type: Application
    Filed: June 29, 2012
    Publication date: May 1, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroshi Otsuki, Shigeki Nakayama, Hiromasa Nishioka, Katsuhiko Oshikawa, Yoshihisa Tsukamoto, Junichi Matsuo, Yuichi Sobue, Daichi Imai, Kou Sugawara
  • Publication number: 20140120014
    Abstract: Device for the purification of exhaust gases from a thermal combustion engine comprising: one or several ceramic catalyst carriers comprising an arrangement of crystallites of the same size, same isodiametric morphology and same chemical composition, or approximately the same size, same isodiametric morphology and same chemical composition in which each crystallite is in point or quasi-point contact with the surrounding crystallites, and one or several active phases for chemical destruction of impurities in the exhaust gas comprising metallic particles having chemical interactions with said ceramic catalyst carrier and mechanical anchoring in said catalyst carrier such that coalescence and mobility of each particle are limited to a maximum volume corresponding to the volume of a crystallite of said ceramic catalyst carrier.
    Type: Application
    Filed: June 8, 2012
    Publication date: May 1, 2014
    Applicants: L'Air Liquide Societe Anonyme pour L'Etude Et L'Exploitation Des Procedes Georges Claude, Centre National De La Recherche Scientifique, Universite De Limoges
    Inventors: Pascal Del-Gallo, Fabrice Rossignol, Thierry Chartier, Raphael Faure, Sebastien Goudalle, Claire Bonhamme
  • Publication number: 20140120015
    Abstract: A method for recovering carbon dioxide (CO2) from a gas stream is disclosed. The method includes the step of reacting CO2 in the gas stream with fine droplets of a liquid absorbent, so as to form a solid material in which the CO2 is bound. The solid material is then input to a transporting desorption unit, where a decarboxylation reaction takes place, to release substantially pure CO2 gas. The CO2 gas can then be collected and used or transported in any desired way. The transporting desorption unit includes an upstream section at atmospheric pressure and a downstream section at a pressure greater than atmospheric pressure, wherein the upstream section and the downstream section are separated by a hydraulic dynamic seal. A related apparatus including the transporting desorption unit for recovering carbon dioxide (CO2) from a gas stream is also described herein.
    Type: Application
    Filed: October 31, 2012
    Publication date: May 1, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Robert James Perry, Paul William Buckley, Gary Stephen Balch, Benjamin Rue Wood, Tiffany Elizabeth Pinard Westendorf, Norberto Silvi
  • Patent number: 8709348
    Abstract: Circulating dry scrubbing (CDS) systems and methods utilizes a particle classification unit operation to separate unreacted sorbent (such as lime, limestone, or sodium-based sorbent) such that a reactive fraction of the cut stream may be selectively recovered to a flue gas scrubbing system. This reduces the amount of fresh sorbent that must be supplied for pollutant removal.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: April 29, 2014
    Assignee: Babcock Power Development LLC
    Inventors: James K. Neathery, Angelos Kokkinos, James D. Dougherty, Matthew Quitadamo
  • Publication number: 20140112834
    Abstract: The present invention relates generally to the cleaning of a flue gas and, in one embodiment, to a device, system and method that mitigates and/or prevents slurry deposition at the flue inlet to a wet flue gas desulfurization (WFGD) unit in order to keep the inlet dry and minimize deposition (e.g., deposition scale) at the flue inlet to the WFGD tower. In one embodiment, a wet flue gas desulfurization (WFGD) unit, system and/or method according to the present invention comprises, among other features, a scale prevention system comprising a plenum air device and/or forced-air box located proximate the inlet transition zone. In another embodiment, a wet flue gas desulfurization (WFGD) unit, system and/or method according to the present invention comprises, among other features, a scale prevention system comprising at least one chill plate located proximate the inlet transition zone.
    Type: Application
    Filed: August 6, 2013
    Publication date: April 24, 2014
    Inventor: Daniel B Johnson
  • Patent number: 8702845
    Abstract: The invention pertains to a system for purification of a carbon dioxide rich flue gas generated in a boiler combusting a fuel in the presence of a gas containing oxygen, and being contaminated by NOx gases, wherein the system comprising one or more gas drier(s) comprising desiccants for removal of at least a portion of water content of the further compressed carbon dioxide rich flue gas; and a closed loop connected to the drier(s) for regeneration of desiccants of the drier(s) wherein the NOx gases are removed substantially separately from the water vapor. The invention pertains also to a method for removing the NOx gases substantially separately from the water vapor.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: April 22, 2014
    Assignee: ALSTOM Technology Ltd
    Inventor: Olaf Stallmann
  • Publication number: 20140105798
    Abstract: An exhaust gas aftertreatment system for an internal combustion engine, particularly for a ship's diesel engine operated with heavy oil, has a SCR catalyst that uses ammonia as reductant. A nozzle is positioned upstream of the SCR catalyst viewed in flow direction of the exhaust gas. Using the nozzle, an aqueous urea solution is decomposed at a defined pressure and at a defined temperature to form water vapor, carbon dioxide and ammonia vapor such that ammonia evaporated by the nozzle is injected into the exhaust gas via the nozzle.
    Type: Application
    Filed: October 10, 2013
    Publication date: April 17, 2014
    Inventors: Stephan Schlüter, Plamen Toshev
  • Publication number: 20140105802
    Abstract: A process of introducing a NOx reduction fluid into combustion products within a downstream end of a regenerative pyrolysis reactor. This NOx reduction fluid may thermally reduce NOx contained therein. The NOx reduction fluid may include ammonia.
    Type: Application
    Filed: April 10, 2012
    Publication date: April 17, 2014
    Inventors: Paul F. Keusenkothen, Frank Hershkowitz
  • Publication number: 20140105809
    Abstract: A CO2 recovery method and apparatus for desorbing and recovering carbon dioxide with low energy consumption from a gas discharged from a power generation plant having a boiler and a steam turbine. The adsorption and the desorption of carbon dioxide are performed alternately in two CO2 absorbers and located in a CO2 recovery apparatus, which each hold a carbon dioxide adsorbent. When carbon dioxide is desorbed, steam discharged from an outlet of a steam turbine of a power generation plant is partially branched before introduced into a condenser, and sent to a steam compressor. The partially branched steam is compressed in this compressor, and then sent to a cooling device. By cooling, the steam for desorption is prepared. The steam prepared in the cooling device is supplied into a CO2 absorber to desorb carbon dioxide. Accordingly, waste steam, before it is introduced into the condenser, is usable for desorption.
    Type: Application
    Filed: May 18, 2012
    Publication date: April 17, 2014
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Takeshi Okumura, Yoshiharu Nonaka, Tomoyuki Ogino, Takatoshi Shoji, Masatoshi Hirokawa, Noboru Takikawa, Kazuto Kamazawa
  • Publication number: 20140096685
    Abstract: An after-treatment device for an automotive engine includes a substrate having a thermoelectric generation element disposed in an interior volume thereof. The substrate has a first end, a second end, and a lateral dimension that define an interior volume, and is configured to flow engine exhaust gas from the first end to the second end such that the flowing exhaust gas is in thermal contact with the thermoelectric generation element.
    Type: Application
    Filed: October 10, 2012
    Publication date: April 10, 2014
    Inventors: Monika Backhaus-Ricoult, Peng Chen, Mark J. Soulliere
  • Publication number: 20140099245
    Abstract: A method and system are described for the on-board treatment of a hydrocarbon-fueled internal combustion engine (ICE) exhaust gas stream to reduce CO2 emissions from the vehicle which include: a. contacting the exhaust gas stream with a CO2 sorbent capture agent on board the vehicle to produce a mixture containing modified CO2-containing sorbent and a treated exhaust gas stream with reduced CO2 content; b. separating the modified CO2-containing sorbent from the treated exhaust gas stream; c. passing the modified sorbent in heat exchange with heat from the ICE to release CO2 and regenerate the CO2 sorbent capture agent; d. recycling the regenerated CO2 sorbent for use in step (a); e. discharging the treated exhaust gas stream having a reduced CO2 content into the atmosphere; f. recovering and compressing the CO2 for temporary storage on board the vehicle.
    Type: Application
    Filed: August 2, 2013
    Publication date: April 10, 2014
    Applicant: Saudi Arabian Oil Company
    Inventor: Esam Zaki HAMAD
  • Publication number: 20140093434
    Abstract: The invention relates to an electronically controlled metering system having at least one sensor for injection of a reducing agent, especially a urea solution, into the exhaust gas stream of an internal combustion engine for selective catalytic reduction, the metering system being connected/connectable to a tank from which the reducing agent can be taken, the reducing agent being conveyed by means of a pump, the metering system having a first line which carries the reducing agent and the metering system having a compressed air supply and a second line which carries compressed air and at least one nozzle which is coupled to both lines and by which the reducing agent together with the compressed air can be injected into the exhaust gas stream, the metering system in the line which carries the reducing agent having at least one damping element for equalization of pressure fluctuations.
    Type: Application
    Filed: December 4, 2013
    Publication date: April 3, 2014
    Inventors: Armin Kassel, Michael Kolm, Werner Overhoff
  • Publication number: 20140086810
    Abstract: A system includes a catalytic reactor configured to mount to a combustor. The catalytic reactor includes a catalyst configured to reduce emissions associated with combustion in the combustor. The catalytic reactor also includes a first sacrificial coating disposed over the catalyst prior to mounting of the catalytic reactor into the combustor, wherein the first sacrificial coating is removable while the catalytic reactor is mounted to the combustor without damaging the catalyst.
    Type: Application
    Filed: September 26, 2012
    Publication date: March 27, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Richard Todd Everhart, Rebecca Evelyn Hefner, Cristina Colindres Kraemer, Gilbert Otto Kraemer, Surinder Singh Pabla, Stephen Gerard Pope
  • Patent number: 8679448
    Abstract: Sulfur emissions from liquid sulfur are reduced, or even entirely avoided by degassing the liquid sulfur at pressure in an out-of-pit vessel and by sweeping the rundown pit (or vessel) with a sweep gas that is non-poisonous for a hydrogenation catalyst. Acid gases from degassing are fed at pressure to the Claus unit, while sweep gases are fed to the tail gas treatment unit to substantially recycle the acid gases to extinction. In preferred plants and methods, motive fluids and booster eductors or compressors are not needed, and incineration of the acid gases can be avoided.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: March 25, 2014
    Assignee: Fluor Technologies Corporation
    Inventors: Thomas Chow, Theresa Flood, Elmo Nasato, Uday Navin Parekh
  • Patent number: 8679418
    Abstract: Systems and methods for fabricating bodies (e.g., porous bodies) are described. Various aspects provide for reactors and the fabrication of reactors. Some reactors include surfaces that provide for heterogeneous reactions involving a fluid (and/or components thereof). A fluid may be a gas and/or a liquid. A contaminant in the fluid (e.g., a dissolved or suspended substance) may react in a reaction. A contaminant may be filtered from a fluid. Some reactors provide for independent control of heat transfer (between the fluid, the reactor, and the environment) with respect to mass transfer (e.g., fluid flow through the reactor).
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: March 25, 2014
    Assignee: Errcive, Inc.
    Inventors: Charles E. Ramberg, Stephen A. Dynan
  • Patent number: 8679431
    Abstract: An air pollution control system comprises a SOx removal equipment for reducing sulfur oxides from flue gas from a boiler, a cooler for reducing the sulfur oxides that remain in the flue gas and for decreasing a gas temperature, CO2 recovery equipment including an absorber for bringing CO2 in the flue gas into contact with a CO2 absorption liquid so as to be reduced, a regenerator for causing the CO2 absorption liquid to emit CO2 so as to recover CO2 and regenerate the CO2 absorption liquid, a heat exchanger which for decreasing a temperature of the flue gas, and calcium carbonate spraying equipment for spraying calcium carbonate between the heat exchanger and an electric dust collector, wherein a mist generation material in the flue gas is converted from a gas state to a mist state to arrest and reduce the mist generation material in the mist state using calcium carbonate.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: March 25, 2014
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Tatsuto Nagayasu, Takashi Kamijo, Masayuki Inui, Tsuyoshi Oishi, Hiromitsu Nagayasu, Hiroshi Tanaka, Takuya Hirata, Tatsuya Tsujiuchi, Susumu Okino, Naoyuki Kamiyama, Seiji Yoshihara
  • Patent number: 8679432
    Abstract: The invention relates to an adsorber, including a reaction chamber, an adsorbent having adsorption properties enabling the at least partial removal of water from a gas stream including NOx and/or SOx, and a coating essentially consisting of a polymer material on at least a portion of the inner metal wall of the reaction chamber, said polymer being resistant to the acidic liquids at temperatures above 150° C.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: March 25, 2014
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Ivan Sanchez-Molinero, Serge Moreau
  • Publication number: 20140079612
    Abstract: The objective of this invention is to develop a method to reclaim functional sites on a CO2 sorbent that have reacted with an acid gas (other than CO2) to form heat stable salts (HSS). HSS are a significant concern for dry sorbent based CO2 capture because over time the buildup of HSS will reduce the overall functionality of the CO2 sorbent. A chemical treatment can remove the non-CO2 acid gas and reclaim functional sites that can then be used for further CO2 adsorption.
    Type: Application
    Filed: September 19, 2013
    Publication date: March 20, 2014
    Inventors: Holly Krutka, Sharon Sjostrom, William J. Morris
  • Patent number: 8673228
    Abstract: The system for reducing environmental pollutants according to the present invention comprises: a first water immersion tank for producing strongly alkaline water by receiving a supply of bottom ash, which has been created by and has been accumulated at the bottom of a combustion furnace, and reacting it with water accommodated on its inside; an elimination reaction tank which is provided on a combustion pathway extending from the combustion furnace, and which internally accommodates the strongly alkaline water supplied from the first water immersion tank, and which also eliminates carbon-based compounds contained in exhaust gases which are discharged through the combustion pathway; a sludge-storage tank for receiving and storing sludge which has been produced as a consequence of the elimination reaction within the elimination reaction tank; a first aggregate storage tank for receiving and storing bottom-ash aggregate remaining within the first water immersion tank after the neutralization which follows as a c
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: March 18, 2014
    Inventors: Byung Chan Lee, Yong-Sik Jang, Kwang Hwan Lee
  • Patent number: 8673227
    Abstract: A system for removal of carbon dioxide from a process gas includes an absorption arrangement arranged to allow contact between the process gas and an ammoniated solution within the absorption arrangement such that at least a part of the carbon dioxide of the process gas is captured by the ammoniated solution. The absorption arrangement is arranged to, with regard to the ammoniated solution, only accommodate ammoniated solution without solids. A first heat exchanger is arranged to cool the ammoniated solution including captured carbon dioxide after it has exited the absorption arrangement. A separator is arranged to remove at least a part of any solids in the cooled ammoniated solution. A second heat exchanger is arranged to heat the ammoniated solution after it has exited the separator and returned to the absorption arrangement.
    Type: Grant
    Filed: October 8, 2012
    Date of Patent: March 18, 2014
    Assignee: ALSTOM Technology Ltd
    Inventors: Sean E. Black, Sanjay K. Dube, David J. Muraskin, Frederic Z. Kozak
  • Patent number: 8673221
    Abstract: The invention relates to a device for denitrifying the flue gases of a fossil fuel-fired steam generator, especially a steam generator boiler (1) of a power plant, having apparatuses (10-12) for blowing a reagent effective in a predetermined temperature range into the interior (18) of the steam generator (1), which contains hot combustion gases. The device according to the invention is characterized in that the blow-in apparatuses (10-12) comprise a plurality of injection lances (10) arranged in spatially distributed manner and a control apparatus (13) for measuring the respective temperature distribution in the interior (18) and for selecting injection lances (10) suitable for blowing in based on the temperature distribution.
    Type: Grant
    Filed: October 11, 2008
    Date of Patent: March 18, 2014
    Assignee: STEAG Power Saar GmbH
    Inventors: Christian Neu, Dirk Kiehn
  • Patent number: 8673157
    Abstract: The present invention relates to a reactor for the photocatalytic treatment of liquid or gaseous streams, which reactor comprises a tube through which the stream to be treated flows, wherein, in the tube, there are arranged at least one light source, at least one flat means M1 provided with at least one photocatalytically active material and at least one flat means M2 reflecting the light radiation radiated by the at least one light source, wherein the reflecting surface of the at least one means M2 and the inner wall of the tube are at an angle greater than or equal to 0°, in such a manner that the light exiting from the light source is reflected by the at least one means M2 onto the photocatalytically active material, and to a method for the photocatalytic treatment of liquid or gaseous streams by irradiation with light in the reactor according to the invention.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: March 18, 2014
    Assignee: BASF SE
    Inventors: Grigorios Kolios, Florina Corina Patcas, Goetz-Peter Schindler, Alexandra Seeber, Gerrit Waters
  • Publication number: 20140072477
    Abstract: A catalytic converter includes an inlet end, an outlet end and a catalyst body. The inlet end is configured to receive an exhaust gas from an engine. An outlet end is configured to output the exhaust gas. A catalyst body includes partitioning members disposed between the inlet end and the outlet end. The catalyst body includes exhaust channels and fluid channels. The exhaust channels are configured to guide the exhaust gas from the inlet end to the outlet end. The fluid channels are configured to receive a fluid from and return the fluid to a waste heat recovery circuit. Each of the exhaust channels and each of the fluid channels includes a respective ones of the partitioning members.
    Type: Application
    Filed: September 13, 2012
    Publication date: March 13, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Eugene V. Gonze, Stuart R. Smith
  • Patent number: 8668889
    Abstract: SOx removal equipment for reducing sulfur oxides from flue gas from a boiler, a cooler which is provided on the downstream side of the SOx removal equipment, for reducing the sulfur oxides from the flue gas and for decreasing a gas temperature, CO2 recovery equipment which includes an absorber for bringing CO2 in the flue gas into contact with a CO2 absorption liquid so as to be reduced and a regenerator for causing the CO2 absorption liquid to emit CO2 so as to recover CO2 and regenerate the CO2 absorption liquid, and dissolved salt spraying equipment for reducing a mist generation material which is a generation source of mist that is generated in the absorber of the CO2 recovery equipment before introducing the flue gas to the CO2 recovery equipment, are included.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: March 11, 2014
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Tatsuto Nagayasu, Takashi Kamijo, Masayuki Inui, Tsuyoshi Oishi, Hiromitsu Nagayasu, Hiroshi Tanaka, Takuya Hirata, Tatsuya Tsujiuchi, Susumu Okino, Naoyuki Kamiyama, Seiji Yoshihara