Waste Gas Purifier Patents (Class 422/168)
  • Patent number: 10413895
    Abstract: When the amount of coating is increased in a two-layer catalyst or the like containing two noble metals in respective different layers, gas diffusivity in the catalyst and use efficiency of a catalytic active site are reduced to thereby reduce purification performance. In view of this, an organic fiber having a predetermined shape is used as a pore-forming material in formation of an uppermost catalyst coating layer of a multi-layer catalyst, to thereby form an uppermost catalyst coating layer having a high-aspect-ratio pore excellent in connectivity and therefore excellent gas diffusivity.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: September 17, 2019
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, CATALER CORPORATION
    Inventors: Hiromasa Suzuki, Masahide Miura, Yoshinori Saito, Satoru Katoh, Toshitaka Tanabe, Tetsuhiro Hirao, Tatsuya Ohashi, Hiroaki Naito, Hirotaka Ori, Michihiko Takeuchi, Keiichi Narita
  • Patent number: 10371032
    Abstract: An exhaust pipe of an engine includes a crank-shaped pipe portion having a first bend and a second bend which guide exhaust gas to a mixer, and a straight pipe portion which is continuous with the second bend. The mixer is arranged in the straight pipe portion. An injector is attached to a portion of the second bend which faces the mixer. The injector has an injection axis which extends in a longitudinal direction of the straight pipe portion so as to point toward the mixer. A guide which guides a part of the exhaust gas from the first bend toward the injector is provided inside the crank-shaped pipe portion.
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: August 6, 2019
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Takashi Kasai, Kazunori Hirasawa, Yoshitaka Wada, Tetsuro Furuta, Masahiro Naito
  • Patent number: 10364728
    Abstract: A system for assembling an exhaust after-treatment assembly having a plurality of exhaust after-treatment blocks is described. Each of the plurality of exhaust after-treatment blocks is disposed adjacent to at least one other exhaust after-treatment block. Each exhaust after-treatment block has one or more catalyst substrates. Each catalyst substrate includes a first face, a second face, and a plurality of side faces. The system includes at least one flange member to surround the one or more catalyst substrates about the side faces. The system further includes a locking arrangement including one or more clips on the flange member and a bracket member configured to engage with the one or more clips in the flange members of the adjacent exhaust after-treatment blocks.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: July 30, 2019
    Assignee: Caterpillar Inc.
    Inventor: Kurtis E. Chenoweth
  • Patent number: 10323554
    Abstract: The present invention is directed to address the following problem: in an exhaust gas purification catalyst comprising a dual catalyst of a combination of a startup catalyst and an underfloor catalyst, reduction in the gas diffusivity of the underfloor catalyst results in reduction in the use efficiency of a catalytic active site, resulting in reduction in purification performance. The present invention relates to an exhaust gas purification catalyst comprising a dual catalyst of a combination of a startup catalyst and an underfloor catalyst having a catalyst coating where a large number of voids are included, wherein high-aspect-ratio pores having an aspect ratio of 5 or more account for a certain rate or more of the whole volume of the voids, to thereby enhance the purification performance of the catalyst.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: June 18, 2019
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, CATALER CORPORATION
    Inventors: Hiromasa Suzuki, Masahide Miura, Yoshinori Saito, Satoru Katoh, Toshitaka Tanabe, Tetsuhiro Hirao, Tatsuya Ohashi, Hiroaki Naito, Hirotaka Ori, Michihiko Takeuchi, Keiichi Narita
  • Patent number: 10294344
    Abstract: Described herein is a component for contacting ammonia and/or urea having a surface that in use will come into contact with urea and/or ammonia. The component comprises fluoroelastomer composition comprising fluoropolymer and a hydrotalcite compound.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: May 21, 2019
    Assignee: 3M Innovative Properties Company
    Inventor: Alain Verschuere
  • Patent number: 10253673
    Abstract: A regeneration method of an apparatus of purifying an exhaust gas including a catalytic converter which is disposed on an exhaust pipe and includes a lean NOx trap (LNT) device in which a first LNT catalyst is coated and a catalyzed particulate filter (CPF) in which a second LNT catalyst is coated may include determining whether a nitrogen oxide (NOx) amount absorbed in the LNT device is greater than a threshold NOx amount, determining whether a temperature of the LNT device is higher than a first predetermined temperature when the NOx amount absorbed in the LNT device is greater than the threshold NOx amount, and regenerating, both of the LNT device and the CPF or only the LNT device according to a temperature of the CPF when the temperature of the LNT device is higher than the first predetermined temperature.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: April 9, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: ChangHo Jung, Pyung Soon Kim
  • Patent number: 10232308
    Abstract: In order to heighten the recovery of activated carbon by separation in a flotation device and stably inhibit mercury from being re-emitted in a desulfurization/absorption tower and from coming into gypsum to be recovered, a method is provided, the method comprising: adding activated carbon to an absorption liquid to be sprayed into the desulfurization/absorption tower to thereby remove mercury components from the flue gas simultaneously with desulfurization of the flue gas; sending the absorption liquid used for the desulfurization to the flotation device to thereby form a foam bubble layer; reducing the drainage volume so that the physical properties of the bubble layer are within given ranges, in such an amount that the concentration of chlorine ions in the absorption liquid does not exceed a given value; and simultaneously adding Ca and/or Mg ions and a frothing agent to the absorption liquid.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: March 19, 2019
    Assignee: MITSUBISHI HITACHI POWER SYSTEMS, LTD.
    Inventors: Wakako Shimohira, Hirofumi Kikkawa, Atsushi Katagawa
  • Patent number: 10226734
    Abstract: A method of treating oil and gas streams including hydrogen sulfide (H2S) comprising treating the gas stream with an aqueous solution of an amine and a physical solvent which, when mixed in equal mass ratio with the amine or amine mixture, display a dielectric constant of at least about 20, wherein the pKa of the amine is at least about 9.0 and the amine boiling point is at least 200° C.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: March 12, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Christophe R. Laroche, Gerardo Padilla, John R. Dowdle
  • Patent number: 10156170
    Abstract: The exhaust gas purification device provided with a particulate filter disposed in an exhaust passage of an internal combustion engine and capturing particulate matter in exhaust gas discharged from the internal combustion engine. The particulate filter is provided with a wall-flow part having an inlet-side cell that is open only at an end on an exhaust gas inflow side, an outlet-side cell that is adjacent to this inlet-side cell and is open only at an end on an exhaust gas outflow side, and a porous wall that partitions the inlet-side cell from the outlet-side cell, and is also provided with a straight-flow part having a through cell that penetrates the filter in an axial direction thereof and is open at the end on the exhaust gas inflow side as well as the end on the exhaust gas outflow side.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: December 18, 2018
    Assignee: CATALER CORPORATION
    Inventors: Ryota Onoe, Shingo Sakagami, Tsuyoshi Ito, Tatsuya Ohashi
  • Patent number: 10138776
    Abstract: An exhaust gas purifying device includes a honeycomb carrier which extends from an inlet-side end face to an outlet-side end face of exhaust gas to form a pathway of exhaust gas, and a tubular case member that houses the honeycomb carrier via a retaining member. The honeycomb carrier includes a sloped part formed at an outer circumferential part at both end faces in an X direction thereof in a direction in which the length in the X direction of the outer circumferential edge thereof decreases, and is retained inside of the case member by the sloped part catching on an inner wall of the case member via the retaining member. The case member has a reduced-diameter part provided in a portion thereof in which an inside diameter of an inlet-side terminal part thereof is smaller than at least an outside diameter of the inlet-side terminal part of the honeycomb carrier.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: November 27, 2018
    Assignee: HONDA MOTOR CO., LTD.
    Inventor: Yoshiaki Hatakeyama
  • Patent number: 10138785
    Abstract: An arrangement for feeding ammonia containing fluid into an exhaust gas passage of a combustion plant includes a first fluid line connectable in flow connection with a source of an ammonia containing fluid. A second fluid line is in flow connection with a source of a dilution fluid. A control unit controls multiple valve members of a valve unit, each of the valve members having a first inlet in flow connection with the first fluid line, a second inlet in flow connection with the second fluid line and an outlet in flow connection with an outlet channel connected to the exhaust gas passage. The valve members are connected in parallel so that the outlet of each of the valve members is in flow connection with a common outlet channel.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: November 27, 2018
    Assignee: Sumitomo SHI FW Energia Oy
    Inventors: Teri Hiltunen, Jouni Lantto
  • Patent number: 10118156
    Abstract: Exhaust gas purification device having a catalyst layer including an Rh—Ba-loaded catalyst, and a Pt/Pd—Ba-loaded catalyst. The exhaust gas purification device satisfies at least one of (a) the degree of Rh—Ba dispersion is greater than 0.001 and less than 1.000, (b) the loaded amount of Ba based on the weight of a first carrier particle in the Rh—Ba-loaded catalyst is greater than 0.01% by weight and less than 10.00% by weight, and the loaded amount of Ba based on the weight of a second carrier particle in the Pt/Pd—Ba-loaded catalyst is 10.00% by weight to 20.00% by weight, and (c) the loaded amount of Ba based on the weight of the first carrier particle in Rh—Ba-loaded catalyst is greater than 0.005 times to less than 0.800 times the loaded amount of Ba based on the weight of the second carrier particle in Pt/Pd—Ba-loaded catalyst.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: November 6, 2018
    Assignees: CATALER CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keiji Horaguchi, Makoto Tsuji, Hiroto Imai, Yasuyoshi Sasaki, Hiroto Yoshida, Takeshi Nobukawa
  • Patent number: 10113466
    Abstract: The invention describes an internal combustion engine (14) for a vehicle (12) that comprises a fly-wheel (24) placed at the rear part with respect to the internal combustion engine (14), a cooling system (28) placed at the front part with respect to the internal combustion engine, a forced induction group consisting of a turbine (22), placed on the same side as the fly-wheel (24), and a compressor (30), placed on the same side as the cooling system (28), and a system (10) for treating the exhaust gases provided with a conduit for the inlet of exhaust gases, operatively connected to the exit door of the turbine, a conduit for the outlet of exhaust gases and a main body or shell (38) internally hollow for containing a substrate (44) through which the exhaust gases are conveyed so that they are subject to predefined chemical reactions.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: October 30, 2018
    Assignee: SDF S.p.A.
    Inventors: Manlio Mattei, Luca Crippa, Antonio Diego Mazzotti
  • Patent number: 10046268
    Abstract: Flue gas desulfurization processes and systems that utilize ammonia as a reactant, and in which any hydrogen sulfide and/or mercaptans within the ammonia are separated during the desulfurization process so as to prevent their release into the atmosphere. The process and system entail absorbing acidic gases from a flue gas with a scrubbing media containing ammonium sulfate to produce a stream of scrubbed flue gas, collecting the scrubbing media containing the absorbed acidic gases, injecting into the collected scrubbing media a source of ammonia that is laden with hydrogen sulfide and/or mercaptans so that the injected ammonia is absorbed into and reacted with the collected scrubbing media, stripping the hydrogen sulfide and/or mercaptans from the collected scrubbing media by causing the hydrogen sulfide and/or mercaptans to exit the collected scrubbing media as stripped gases, and collecting the stripped gases without allowing the stripped gases to enter the stream of scrubbed flue gas.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: August 14, 2018
    Assignee: Marsulex Environmental Technologies Corporation
    Inventor: Eli Gal
  • Patent number: 10036090
    Abstract: A trap mechanism is provided in the middle of an exhaust passage through which an exhaust gas, which is exhausted from a film formation device body that forms a thin film on the surface of a workpiece (W), flows, and recovers a gas to be collected that is contained in the exhaust gas by cooling and liquefying the gas to be collected. The trap mechanism includes: a housing having a gas inlet and a gas outlet; a partitioning member that partitions the inside of the housing into retention spaces; communication paths that communicate the retention spaces with one another; and cooling jackets that cool the communication paths to cool the exhaust gas. With this structure, the exhaust gas is adiabatically expanded while being cooled, and the gas to be collected is efficiently cooled and liquefied.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: July 31, 2018
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Eiichi Komori, Hironori Yagi
  • Patent number: 10033054
    Abstract: A fuel cell system includes: a fuel cell that includes a membrane electrode assembly clipping an electrolyte membrane with an anode and a cathode; a fuel gas supplier that supplies an anode gas to the anode via an anode gas supply passage in accordance with a power generation request for the fuel cell; a circulation pump that circulates an exhaust gas discharged from the anode to the anode gas supply passage; a judger that judges whether any one of a temperature of the circulation pump and a temperature associated with the temperature of the circulation pump is equal to or less than a prescribed temperature; and a drive controller that drives the circulation pump at a prescribed rotation number when the judger judges that any one of the temperatures is equal to or less than the prescribed temperature, and there is no power generation request for the fuel cell.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: July 24, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kazuo Yamamoto, Hiroyuki Imanishi
  • Patent number: 10022705
    Abstract: To reduce an OSC material, while maintaining necessary OSC capacity; and to improve heat resistance and reactivity of a precious metal. Proposed is an exhaust gas purifying catalyst which comprises a first catalyst layer that is formed on the surface of a substrate that is formed of a ceramic or a metal, and a second catalyst layer that is formed on the upper side of the first catalyst layer. The first catalyst layer comprises a precious metal, an OSC material and an alumina, and the OSC material and the alumina are comprised at a mass ratio of OSC material:alumina=1:7 to 1:3. The second catalyst layer comprises a precious metal, an OSC material and an alumina, and the OSC material and the alumina are comprised at a mass ratio of OSC material:alumina=1:1 to 10:0.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: July 17, 2018
    Assignees: HONDA MOTOR CO., LTD., Mitsui Mining & Smelting Co., Ltd.
    Inventors: Toshiaki Kimura, Hiroyuki Horimura, Takumi Yamaguchi, Takeshi Endo, Akihiro Iimuro, Ryoichi Oshima, Ohki Houshito, Yunosuke Nakahara
  • Patent number: 10008337
    Abstract: There are disclosed activated carbon for use in an electric double-layer capacitor electrode, the carbon being capable of improving rate characteristics and float characteristics of the electric double-layer capacitor electrode, and a method for manufacturing the activated carbon. The method for manufacturing the activated carbon for use in the electric double-layer capacitor electrode, comprising the steps of: grinding a carbon raw material to adjust an average particle diameter of the carbon raw material into a range of 1 ?m to 15 ?m; mixing the carbon raw material whose average particle diameter has been adjusted, with an alkali activator to obtain a mixture; and an activation treatment comprising heating the mixture under an atmosphere of an inert gas and then under an atmosphere of a mixed gas of the inert gas and water vapor.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: June 26, 2018
    Assignee: POWER CARBON TECHNOLOGY CO., LTD.
    Inventors: Masaki Fujii, Masatoshi Nishida, Keizou Ikai
  • Patent number: 9943806
    Abstract: The exhaust gas purification system includes a SCR, an NOx sensor which is provided on a downstream side of the SCR, and an NOx purifying controller which controls an amount of urea water being ejected to the SCR and performs an abnormality diagnosis based on a detection value of the NOx sensor, wherein the exhaust gas purification system includes an exhaust gas temperature sensor which acquires temperature of the exhaust gas flowing into the SCR, a temperature increasing rate calculating unit which calculates a temperature increasing rate at which the exhaust gas temperature acquired by the exhaust gas temperature sensor reaches a second temperature from a predetermined first temperature, and a prohibiting unit which prohibits abnormality diagnosis by the NOx purifying controller in a case in which the temperature increasing rate calculated by the temperature increasing rate calculating unit is higher than a predetermined determination threshold value.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: April 17, 2018
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Masanobu Minezawa, Kouji Sakumoto, Shinji Hara
  • Patent number: 9919268
    Abstract: The present disclosure relates to a system for removing a pollutant from a power generation cycle that utilizes a high pressure circulating fluid. The system includes a first direct contact cooling tower configured to cool the high pressure circulating fluid and condense a fluid stream that removes SO2 from the circulating fluid. A first recirculating pump fluidly communicates with the first direct contact cooling tower. The first tower includes an outlet configured to circulate a cooled CO2 product stream, and a second direct contact cooling tower is configured to receive at least a portion of the cooled CO2 product stream from the outlet. The second direct contact cooling tower is configured to cool the CO2 product stream and condense a fluid stream that removes NOx from the CO2 product stream. A second recirculating pump fluidly communicates with the second tower. An associated method is provided.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: March 20, 2018
    Assignee: 8 Rivers Capital, LLC
    Inventors: Rodney John Allam, Xijia Lu, Scott Thomas Martin
  • Patent number: 9896983
    Abstract: An exhaust-gas treatment unit includes: a supply line, for exhaust gas, having an entry opening and an exit opening, and a first exhaust-gas treatment body into which the exhaust gas flows through the entry opening and out of which the exhaust gas exits at the exit opening; a housing into which the supply line extends via the exit opening, the housing forming an intermediate space around the supply line; an outlet space in the housing being arranged laterally with respect to the supply line; and a dividing device arranged between the intermediate space and the outlet space. The intermediate space is configured such that the exhaust gas passes out of the intermediate space and is divided into at least two partial streams which, in the direction of the outlet space, are conducted into the outlet space in opposite directions by at least two openings formed by the dividing device.
    Type: Grant
    Filed: July 30, 2014
    Date of Patent: February 20, 2018
    Assignee: Continental Automotive GmbH
    Inventor: Francois Jayat
  • Patent number: 9897313
    Abstract: A system and method of collecting and transporting exhaust gases, preferably gases generated via the burning of fossil fuels, to a remote treatment facility. The exhaust gases include greenhouse gases, airborne particulates, and other pollutants. The present system comprises a gas extraction cap for collecting exhaust gas emitted from a point source of pollution, a pump for drawing water from a water source, a means for mixing the captured exhaust gas with the drawn water, a pipeline for transporting the gas-water solution to a remote treatment facility, and one or more high-pressure boilers for separating the water from the gas-water solution, leaving the exhaust gases available for treatment at the facility. Once the gas-water mixture arrives at the processing location, it then goes through one or more boiling steps in order to separate the water from the captured gases.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: February 20, 2018
    Inventor: Jahchinedu James
  • Patent number: 9861934
    Abstract: A system for vaporizing and optionally decomposing a reagent, such as aqueous ammonia or urea, which is useful for NOx reduction, includes a cyclonic decomposition duct, wherein the duct at its inlet end is connected to an air inlet port and a reagent injection lance. The air inlet port is in a tangential orientation to the central axis of the duct. The system further includes a metering valve for controlling the reagent injection rate. A method for vaporizing and optionally decomposing a reagent includes providing a cyclonic decomposition duct which is connected to an air inlet port and an injection lance, introducing hot gas through the air inlet port in a tangential orientation to the central axis of the duct, injecting the reagent axially through the injection lance into the duct; and adjusting the reagent injection rate through a metering valve.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: January 9, 2018
    Assignee: PEERLESS MFG.CO
    Inventors: James M. Valentine, Jeffrey Michael Broderick, Thomas V. Eldredge, Saiprasad Jangiti, Eric Lindemann
  • Patent number: 9856770
    Abstract: A method and device for controlling emissions of VOC's comprises transporting VOC's to an engine and transporting the exhaust from the engine into a manifold. Supplemental air is transporting into the manifold and heat is transferred from the exhaust to the supplemental air within the manifold. The supplemental air is mixed with the exhaust and the mixture is transferred to a pollution abatement device.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: January 2, 2018
    Assignee: BRB/Sherline, Inc.
    Inventor: Bernhardt R. Bruns
  • Patent number: 9840956
    Abstract: An engine and after treatment system comprising an engine with an exhaust line engaged to upstream after treatment components, the upstream after treatment components engaged to a selective catalytic reduction converter, a means for bypassing the upstream after treatment components to allow engine exhausts to warm a catalyst within the selective catalytic reduction converter. One version allows indirect warming of the catalyst by providing a pathway for engine exhausts thru a warming cavity located on an outer region of the selective catalytic converter and then back thru the upstream after treatment components.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: December 12, 2017
    Assignee: International Engine Intellectual Property Company, LLC.
    Inventor: Rajesh T. Patel
  • Patent number: 9832997
    Abstract: A method for extracting the compound 3-methyl-2H-furo[2,3-c]pyran-2-one from smoke, the method comprising pyrolysis of cellulose or any biomass within a combustion chamber, directing the smoke into a scrubbing apparatus incorporating a spiral condenser tube extending along the chamber and having a number of mist spray units spaced along the entire spiral condenser tube, collecting smoke water thus formed and passing it to a cooling chamber and then to preparation for storage or despatch.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: December 5, 2017
    Inventor: Shane Gordon Sparg
  • Patent number: 9821269
    Abstract: A method is described for mixing gas and liquid for gravitational, physical and chemical collection of compounds or particles, based on decreasing of the compounds free mean path in a vessel, and comprising the steps of: gravitational depletion, involving abating compounds and liquid chemical solution drops with higher diameter than higher volume; physical deposition, involving the condensation of abated compounds on a wet surface of the vessel; chemical adsorption, involving chemical reaction between the abated compounds and the species in the liquid chemical solution.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: November 21, 2017
    Assignees: IS Clean Air Italia S.r.l.
    Inventors: Mauro Tripodi, Paolo Tripodi
  • Patent number: 9822685
    Abstract: An exhaust aftertreatment system may include a reductant supply and diluent supply conduits, an injector and a control module. The reductant supply conduit includes a first valve controlling a flow of reductant through the reductant supply conduit. The diluent supply conduit includes a second valve controlling a flow of diluent through the diluent supply conduit. The injector is in fluid communication with the reductant supply conduit and the diluent supply conduit and is configured to provide fluid to an exhaust stream. The control module may control the first valve to provide a targeted amount of reductant through the injector. The control module may control the second valve to maintain a fluid flow rate through the injector that is at or above a minimum flow rate threshold of the injector based on a difference between a flow rate through the reductant supply conduit and the minimum flow rate threshold.
    Type: Grant
    Filed: October 13, 2014
    Date of Patent: November 21, 2017
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventors: Timothy P. Gardner, Padmanabha Reddy Ettireddy, Adam J. Kotrba, Michael Golin
  • Patent number: 9795920
    Abstract: Methods for removing sulfur dioxide from a gas stream are disclosed. A method may include passing a gas stream comprising SO2 through a gas scrubbing apparatus. A scrubbing liquor comprising hydroxide ions and at least one oxidation catalyst may be flowed into the gas scrubbing apparatus, thereby contacting the gas stream with the scrubbing liquor. In response to the contacting, at least 90 wt. % of the sulfur dioxide may be removed from the gas stream. Concomitant to the contacting, at least some of the sulfur dioxide may react with at least some of the hydroxide ions, thereby forming sulfite ions in the scrubbing liquor. Some of the sulfite ions may be oxidized, via the oxidation catalyst, thereby forming sulfate ions in the scrubbing liquor. A used scrubbing liquor may be discharged from the scrubbing apparatus.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: October 24, 2017
    Assignee: ARCONIC INC.
    Inventors: Rajat S. Ghosh, John R. Smith
  • Patent number: 9784163
    Abstract: An exhaust aftertreatment system may include an exhaust gas passageway and a mixer assembly. The exhaust gas passageway may receive exhaust gas output from a combustion engine. The mixer assembly may be disposed along the exhaust gas passageway and may receive the exhaust gas. The mixer assembly may include a mixer housing, a mixing bowl and an injector housing. The mixing bowl may be disposed within the mixer housing and may include an outer diametrical surface that engages an inner diametrical surface of a wall of the mixer housing. The injector housing may extend through the wall and into an aperture in the mixing bowl. The aperture may define a flow path through which at least a majority of the exhaust gas entering the mixer assembly flows. The mixing bowl may include an upstream end portion having contours directing the exhaust gas toward the injector housing.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: October 10, 2017
    Assignee: Tenneco Automotive Operating Company Inc.
    Inventors: Lawrence J. Noren, IV, Daniel J. Owen, Jeffrey W. Denton, Attila Kovacs, Eric A. Hein, Meng-Huang Lu
  • Patent number: 9700840
    Abstract: A method for the removal of an ester (3?) from a vapor mixture (5?) containing the ester (3?) is disclosed. The method comprises the steps of by bringing the vapor (5) mixture (5?) into contact with an aqueous solution (6?) containing the acid (4?) corresponding to the ester (3?), wherein a portion of the ester (3?) is dissolved in or otherwise transferred to the aqueous solution (6?), and the aqueous solution (6?) is after the contact led in a circulation (73), the aqueous solution (6?) is processed in the circulation (73) in a process comprising: a heating step (240), a (10) reaction step (250) having a residence time and a temperature, a cooling step (260), wherein the heating step (240) precedes the reaction step (250), the reaction step (250) precedes the cooling step (260), and the residence time and the temperature in the reaction step (250) are sufficient to substantially reduce the content of the ester (3?) in the aqueous solution (6?).
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: July 11, 2017
    Assignee: Sulzer Chemtech AG
    Inventors: Daniel Dünnenberger, François Loviat
  • Patent number: 9694349
    Abstract: A CO slip catalyst, for treating an exhaust gas from a lean burn internal combustion engine, is disclosed. The CO slip catalyst comprises palladium and a ceria-containing material. The invention also includes a method for oxidizing excess CO in an exhaust gas, wherein the excess CO results from the periodic contact of an upstream catalyst under rich exhaust conditions. The method comprises contacting the excess CO in the exhaust gas with a CO slip catalyst at a temperature in the range of 100 to 700° C.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: July 4, 2017
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Erich Conlan Weigert, Shadab Sharif Mulla, Todd Howard Ballinger, Jeffery Scott Rieck, Julian Peter Cox, Hai-Ying Chen
  • Patent number: 9566551
    Abstract: The present invention relates in general to a process for removing mercury from a mercury-containing flue gas using dregs from a Kraft pulp mill green liquor clarifier. The dregs are washed with water to produce a particulate carbon slurry which is activated with hydrobromic acid and injected into a mercury-containing flue gas to oxidize and adsorb the mercury at temperatures less than about 900° F. A slurry of sodium hydroxide and calcium carbonate, optionally also obtained from Kraft mill waste, is injected into the hot flue gas to absorb and remove CO2, SO2, and SO3.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: February 14, 2017
    Assignee: S&S Lime, Inc.
    Inventor: John C. Stuever
  • Patent number: 9550729
    Abstract: Catalytic compositions are provided that are effective for providing increased acrylonitrile product without a significant decrease in hydrogen cyanide and/or acetonitrile production and provide an overall increase in production of acrylonitrile, hydrogen cyanide and acetonitrile. The catalytic compositions include a complex of metal oxides and include at least about 15% m-phase plus t-phase by weight and have a weight ratio of m-phase to m-phase plus t-phase of 0.45 or greater.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: January 24, 2017
    Assignee: INEOS EUROPE AG
    Inventors: James F. Brazdil, Mark A. Toft, Stephen T. McKenna
  • Patent number: 9533287
    Abstract: A catalyst for reforming hydrocarbons may include a nickel nanoparticle having a controlled crystal facet, the controlled crystal facet being a surface of the nickel nanoparticle and including a {100} face, a {111} face, or a combination thereof. The present disclosure also relates to a production method thereof and a method of reforming hydrocarbons using the same.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: January 3, 2017
    Assignees: Samsung Electronics Co., Ltd., Yonsei University, University—Industry Foundation (UIF)
    Inventors: Seung Jae Lee, In Hyuk Son, Hyunjoo Lee, Chanyeon Kim
  • Patent number: 9440183
    Abstract: A wet scrubber (1) for cleaning a process gas containing sulphur dioxide comprises an absorption vessel (2) for contacting the process gas with an absorption liquid to absorb sulphur dioxide from the process gas, a sulphite sensor (68, 74) for measuring a sulphite concentration in the absorption liquid, and a control unit (52). The control unit (52) is adapted to receive a measurement signal from the sulphite sensor (68, 74) and to control, based on the measured sulphite concentration, at least one wet scrubber operating parameter influencing the sulphite concentration in the absorption liquid.
    Type: Grant
    Filed: October 8, 2012
    Date of Patent: September 13, 2016
    Assignee: ALSTOM Technology Ltd
    Inventors: Fredrik Jens Brogaard, Kerstin Forsgren, Mikael Larsson, Rikard Håkansson
  • Patent number: 9441311
    Abstract: The present invention in one preferred embodiment discloses a new design of HVPE reactor, which can grow gallium nitride for more than one day without interruption. To avoid clogging in the exhaust system, a second reactor chamber is added after a main reactor where GaN is produced. The second reactor chamber may be configured to enhance ammonium chloride formation, and the powder may be collected efficiently in it. To avoid ammonium chloride formation in the main reactor, the connection between the main reactor and the second reaction chamber can be maintained at elevated temperature. In addition, the second reactor chamber may have two or more exhaust lines. If one exhaust line becomes clogged with powder, the valve for an alternative exhaust line may open and the valve for the clogged line may be closed to avoid overpressuring the system. The quartz-made main reactor may have e.g. a pyrolytic boron nitride liner to collect polycrystalline gallium nitride efficiently.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: September 13, 2016
    Assignee: SixPoint Materials, Inc.
    Inventors: Tadao Hashimoto, Edward Letts
  • Patent number: 9433929
    Abstract: Catalytic compositions are provided that are effective for providing increased acrylonitrile product without a significant decrease in hydrogen cyanide and/or acetonitrile production and provide an overall increase in production of acrylonitrile, hydrogen cyanide and acetonitrile. The catalytic compositions include a complex of metal oxides and include at least about 15% m-phase plus t-phase by weight and have a weight ratio of m-phase to m-phase plus t-phase of 0.45 or greater.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: September 6, 2016
    Assignee: INEOS EUROPE AG
    Inventors: James F. Brazdil, Mark A. Toft, Stephen T. McKenna
  • Patent number: 9427750
    Abstract: A device for distributing a fluid in a controlled manner, in particular for distributing a gas loaded with particles, the device comprising a pipe (1) provided with at least one inlet orifice (2) and with a series of outlet orifices (3) spread along the pipe (1) and cut in a side wall of this pipe, wherein at least one section (4) of the side wall, located downstream of at least one outlet orifice and limited by a section (5) of the edge of the outlet orifice (3), has a concave shape such that this section (5) of the edge of such outlet orifice (3) is positioned inside the pipe so that, when the device is in service, the flow direction of a fluid exiting such outlet orifice (3) and travelling along such deformed concave wall section (4) of the edge of this outlet orifice (3) is controlled by the shape of such section (5) of the edge.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: August 30, 2016
    Assignee: Solvay SA
    Inventors: Thierry Cartage, Olivier Jacques F. J. G. Bodson, Marc Thijssen
  • Patent number: 9416705
    Abstract: This burner has: a flame stabilizer formed in a tubular shape; a fuel supply unit that supplies fuel within the flame stabilizer; an air supply passage that includes a heater unit for heating air and that supplies air heated by the heater unit into the flame stabilizer; and an ignition unit that ignites the air-fuel mixture of combustion air and fuel within the flame stabilizer.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: August 16, 2016
    Assignee: HINO MOTORS, LTD.
    Inventors: Ichiro Tsumagari, Ryo Shibuya, Atsushi Koide
  • Patent number: 9266064
    Abstract: A CO slip catalyst, for treating an exhaust gas from a lean burn internal combustion engine, is disclosed. The CO slip catalyst comprises palladium and a ceria-containing material. The invention also includes a method for oxidizing excess CO in an exhaust gas, wherein the excess CO results from the periodic contact of an upstream catalyst under rich exhaust conditions. The method comprises contacting the excess CO in the exhaust gas with a CO slip catalyst at a temperature in the range of 100 to 700° C.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: February 23, 2016
    Assignee: Johnson Matthey PLC
    Inventors: Erich Conlan Weigert, Shadab Sharif Mulla, Todd Howard Ballinger, Jeffery Scott Rieck, Julian Peter Cox, Hai-Ying Chen
  • Patent number: 9259742
    Abstract: A device for collecting particles in air comprising a collecting chamber (4), a capillary tube (12) whereof one end (12.1) terminates in the chamber (4), a collecting electrode, the capillary tube (12) containing polarisable liquid. Sufficient difference in voltage is applied between the liquid and the collecting electrode (16) for a corona effect between the drop of liquid at the end of the capillary tube (12) and the collecting electrode (12) and the spraying of the drop (20) by electrospray. The corona discharge causes flow of air through the collecting chamber (4) and the electrospray ensures wetting of the collecting electrode (16).
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: February 16, 2016
    Assignees: Commissariat à l'énergie atomique et aux énergies alternatives, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Jean-Maxime Roux, Jean-Luc Achard
  • Patent number: 9255508
    Abstract: A system and method for controlling temperature of a urea reductant to form ammonia for NOx reduction in a selective catalytic reducer coupled to a turbocharged engine exhaust by portioning a flow across the reductant between compressed air and ambient air.
    Type: Grant
    Filed: February 11, 2014
    Date of Patent: February 9, 2016
    Assignee: Ford Global Technologies, LLC
    Inventor: Yasser Mohamed sayed Yacoub
  • Patent number: 9238192
    Abstract: An apparatus and method for processing of a source gas and for removal of a target gas therefrom. The apparatus has an absorption system having a first containment structure defining a first process volume for containment of a gas phase and an absorbent liquid phase and a regeneration system fluidly downstream of the absorption system having a second containment structure defining a second process volume for containment of a gas phase and an absorbent liquid phase including a heating means to heat the liquid phase. An ultrasound transducer system is provided in association with one or both of the first or second containment structure to apply in use ultrasonic vibration to a part of the said first and/or second containment structure and thus to apply in use ultrasonic vibration to the contents of a part of the first and/or second process volume as the case may be.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: January 19, 2016
    Assignee: DOOSAN BABCOCK LIMITED
    Inventor: Euan Mcculloch
  • Patent number: 9181838
    Abstract: A vehicle exhaust system is provided and comprises a catalyst positioned in an exhaust passage of a vehicle. The catalyst is in the form of a washcoat supported on a substrate. The system includes a phase change material located adjacent to the catalyst to maintain the temperature of the catalyst between engine shut-down and subsequent start-up as well as to regulate the temperature during engine operation. In some embodiments, the phase change material comprises particles of a metal or metal alloy encapsulated in a ceramic material. The metal or metal alloy is adapted to have a phase change that occurs within a temperature range wherein the catalyst is active.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: November 10, 2015
    Assignee: Ford Global Technologies, LLC
    Inventors: Andrew Robert Drews, Mark John Jagner, Kevin James Rhodes
  • Patent number: 9132385
    Abstract: The present invention is a combustion system employing a urea-to-ammonia vapor reactor system. The urea-to-ammonia reactor housing enclosed in a bypass flow duct that receives a secondary flue gas stream at a split point from a main flue gas stream containing nitrogen oxides (NOx) emanating from a boiler. The bypass flow duct allows the secondary flue gas stream to flow past the enclosed reactor housing where injected aqueous urea in atomized or non-atomized form, is gasified to ammonia vapor. The resulting gaseous mixtures of ammonia, its by-products and the secondary flue gas stream subsequently rejoin the main stream, before the main flue gases are treated through a Selective Catalytic Reduction (SCR) reactor apparatus. A residence time of the secondary stream within the bypass flow duct, which may be increased by a recirculation loop, enables effective conversion of urea to ammonia to be used in the SCR apparatus.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: September 15, 2015
    Assignee: Johnson Matthey Inc.
    Inventor: Yul Kwan
  • Publication number: 20150147233
    Abstract: Provided is an exhaust gas purifying apparatus capable of purifying exhaust gas by using water. The exhaust gas purifying apparatus includes an electrolyzed alkaline water generator which includes a cathode and an anode formed of Mg or an Mg alloy, and in which water is electrolyzed through application of voltage across the cathode and anode, to generate electrolyzed alkaline water. The purifying apparatus includes an exhaust gas absorption tower into which exhaust gas is introduced. Spray nozzles spray the electrolyzed alkaline water in the exhaust gas absorption tower.
    Type: Application
    Filed: January 7, 2015
    Publication date: May 28, 2015
    Applicant: FUJI ELECTRIC CO., LTD.
    Inventors: Hiroyuki TOYAMA, Eiju NAKADA, Takashi INUI
  • Patent number: 9038372
    Abstract: In an internal combustion engine, inside an engine exhaust passage, a hydrocarbon feed valve (15) and an exhaust purification catalyst (13) are arranged. The carrier (50) of the exhaust purification catalyst (13) is formed from a crystallized composite oxide of aluminum and an alkali earth metal. On this carrier (50), precious metal catalysts (51, 52) are carried. The concentration of hydrocarbons which flow into the exhaust purification catalyst (13) is made to vibrate by within a predetermined range of amplitude of a 200 ppm or more and within a predetermined range of period of 5 second or less, whereby the NOx which is contained in exhaust gas is reduced at the exhaust purification catalyst (13).
    Type: Grant
    Filed: October 4, 2010
    Date of Patent: May 26, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masao Watanabe, Koutarou Hayashi, Kohei Yoshida, Yuki Bisaiji, Kazuhiro Umemoto
  • Patent number: 9040005
    Abstract: The present invention relates to a method for removal of SO2 from exhaust gas from a marine engine or a marine boiler of a ship. The exhaust gas from said marine engine or marine boiler is cooled and washed with seawater in a first scrubber section, and subsequently, in a second scrubber section, washed with circulating freshwater with an addition of an alkaline chemical. The circulating freshwater used for washing is warmer than the seawater used for cooling in the first scrubber section. The warmer freshwater is indirectly heat exchanged with cold seawater. The exhaust gas washed in the first scrubber section is passed via a demister unit before it is washed with circulating freshwater in the second scrubber section. The invention further relates to a corresponding scrubber system.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: May 26, 2015
    Assignee: ALFA LAVAL CORPORATE AB
    Inventor: Jens Peter Hansen
  • Patent number: 9039981
    Abstract: A laminated body composed of a holding member and an inner cylinder is arranged between a heat generation element, which is electrically energized to generate heat, and a case which covers the heat generation element, and the inner cylinder has an upstream side end portion extended to a more upstream side than an upstream side end face of said heat generation element and an upstream side end face of said holding member to form an extension portion, which is formed with a protruding portion protruding to an inner side in a diametrical direction. A flow of an exhaust gas, which flows backwards after colliding with the heat generation element, will be obstructed by said protruding portion. As a result, the backflow exhaust gas stops flowing into a gap between the case and the inner cylinder.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: May 26, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Mamoru Yoshioka