Patents Examined by Sheng H Davis
  • Patent number: 9630843
    Abstract: The present invention relates to a reactor and to a process for synthesis of hydrogen sulphide from elemental sulphur and hydrogen at elevated pressure and elevated temperature. The invention further relates to the use of the reactor for preparation of hydrogen sulphide in high yield and with a low H2Sx content.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: April 25, 2017
    Assignee: EVONIK DEGUSSA GmbH
    Inventors: Caspar-Heinrich Finkeldei, Chiu Kee Cheung, Ralf Maassen, Geert Van Eester, Stefan Wenner, Martin Koerfer
  • Patent number: 9623372
    Abstract: Waste treatment comprises heating it in a chamber to effect pyrolysis of the waste, introducing oxygen into the chamber to effect combustion of the pyrolyzed waste, and contacting off-gas from the pyrolysis and/or combustion steps with an oxidation catalyst to convert carbon monoxide and hydrocarbons in the off-gas into carbon dioxide and water and with a reduction catalyst to convert nitrous oxides to nitrogen and oxygen. Thus, domestic waste is treated in a batch process using catalytic converters to reduce the level of toxic components before off-gas reaches the atmosphere.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: April 18, 2017
    Assignee: Pyropure Limited
    Inventors: Howard Morgan Clarke, Peter Bartl
  • Patent number: 9624106
    Abstract: SuperSulf process refers to an innovative reactor design consisting of internal cooling and heating thermoplate exchangers where it is filled by the Claus type catalysts between plates in the SRU and hydrogenation catalysts in the tail gas unit. SuperSulf reactor consists of 3 reactor zones in the sulfur recovery which operates as a SubDewPoint process where the mode of operation are controlled by switching valves on the utilities streams high pressure steam and high quality water and steam where the first 2 zones operate as hot and cold and switches to cold and hot where the produced sulfur is condensed. The third zone operates as cold all the time where consists of the last sulfur condenser by producing Low pressure steam. The tail gas unit consists of 2 reactor zones of hydrogenation reactor and hydrolysis reactor with internal plate cooling then followed by the tail gas amine with a selective solvent.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: April 18, 2017
    Inventors: Mahin Rameshni, Stephen L. Santo
  • Patent number: 9604085
    Abstract: The present invention is directed to a formulation and associated method for neutralizing one or more toxic chemical and/or materials including toxic industrial chemicals and toxic industrial materials, such as irritants, heavy metals, radioactive metals, acids and acid irritants, pesticides, and various agricultural chemicals, (collectively referred to as toxic chemical, materials, or simply toxins) as well as decontaminating surfaces that have come into contact with these agents. As a result, the formulation of the present invention can be used for neutralizing a broad spectrum of toxic chemicals and materials. In one embodiment, the active ingredient comprises 2, 3, butanedione monoxime (also known as diacetyl monoxime (DAM)), and alkali salts thereof such as potassium 2,3-butanedione monoxime (KBDO). The formulation also typically includes a carrier in which the active ingredient is dispersed.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: March 28, 2017
    Assignee: Emergent Protective Products Canada ULC
    Inventors: Timothy G. Henry, Barbara B. Price
  • Patent number: 9604176
    Abstract: A high-temperature NOx occlusion reduction type catalyst in which an NOx occlusion material containing an alkali metal is supported, and a low-temperature NOx occlusion reduction type catalyst in which an NOx occlusion material containing an alkaline earth metal is supported, are disposed in series on an upstream side and a downstream side, respectively, of an exhaust gas purification system. An oxidation catalyst is disposed on an upstream side of the high-temperature NOx occlusion reduction type catalyst. The desulfurization of the NOx occlusion reduction type catalysts is facilitated, and the NOx reduction efficiency is improved by the partial oxidation of hydrocarbons in the exhaust gas, while a wide NOx active temperature window is achieved.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: March 28, 2017
    Inventors: Daiji Nagaoka, Teruo Nakada
  • Patent number: 9597637
    Abstract: The present disclosure relates to an exhaust gas post-processing apparatus, and more particularly, to an exhaust gas post-processing apparatus and a control method thereof which reduce emission of nitrogen oxide (NOx) by bypassing high-temperature exhaust gas to a front end of a selective catalytic reduction. Accordingly, some embodiments of the present disclosure have been made to solve one or more of the aforementioned problems, and some embodiments of the present disclosure increase a reducing rate of nitrogen oxide by controlling a flow of exhaust gas by changing a structure of an exhaust pipe. The exhaust gas post-processing apparatus and the control method thereof according to the present disclosure may increase a reducing rate of nitrogen oxide.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: March 21, 2017
    Assignee: Doosan Infracore Co., Ltd.
    Inventors: Ji Hoon Lim, Min Seok Ko, Byoung Gul Oh, Kyung Min Park, Sang Hoon Kim
  • Patent number: 9597654
    Abstract: Modified Trass material has an enlarged active surface compared to native Trass. A method of preparation of the Modified Trass includes contacting Trass with an agent capable to dissolve away components in the Trass, and removing the dissolved components from the Trass. The modified Tass can be used for removing substances from fluids, in particular from exhaust gases of combustion plants.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: March 21, 2017
    Assignee: FTU GmbH Forschung und Technische Entwicklung im Umweitschutz
    Inventors: Konrad Fichtel, Michael Fichtel, Roland Fichtel
  • Patent number: 9586178
    Abstract: A nitrogen oxide (NOx) abatement system is provided. The system includes a power generation device for generating power from a hydrogen-element containing fuel, an exhaust conduit in flow communication with an exhaust stream containing NOx which comes from the power generation device, a plasma reactor for reforming a portion of the hydrogen-element containing fuel with nitrogen to produce ammonia, and a NOx abatement reactor containing ammonia selective catalytic reduction (NH3-SCR) catalyst for receiving the exhaust stream and the ammonia and reducing NOx in the exhaust stream by causing the NOx to react with the ammonia to form nitrogen.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: March 7, 2017
    Inventors: Xiaoying Bao, Daniel George Norton, Lishun Hu
  • Patent number: 9579601
    Abstract: A method for treating a gas is shown which includes the steps of: injecting a powdered compound into the gas line, injecting an aqueous phase in droplet form into the line, capturing pollutants from the gases, and recovering the powdered compound separately. The step for injecting an aqueous phase in droplet form is done so as to moisten those particles of powdered compound in the gas line, when they are injected.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: February 28, 2017
    Assignee: S. A. Lhoist Recherche et Developpement
    Inventors: Xavier Pettiau, Olivier Nyssen, Alain Brasseur, Alain Laudet
  • Patent number: 9567876
    Abstract: A reactor system includes a fluidized-bed. A fuel and a sulfur absorbent material are eluted through the fluidized-bed. The reactor system may include a heat exchanger having a heat-exchanging portion within a heating zone of the reactor that is hermetically sealed from the heating zone. The reactor may include loose particles of an inert bed material for forming the fluidized-bed. A feed system may be provided to inject a solid fuel composite that includes a mixture of a solid, carbonaceous fuel and a solid reagent into the reactor.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: February 14, 2017
    Assignee: Gas Technology Institute
    Inventors: Albert E. Stewart, Ganesan Subbaraman, Jeffrey A. Mays, James A. Hartung
  • Patent number: 9567239
    Abstract: Provided are an impurity-element removing method for selectively removing magnesium from a nickel-containing solution, and a method for producing high-purity nickel sulfate using the impurity-element removing method.
    Type: Grant
    Filed: January 20, 2014
    Date of Patent: February 14, 2017
    Assignee: Sumitomo Metal Mining Co., Ltd.
    Inventors: Shin-ichi Heguri, Yoshitomo Ozaki, Keiji Kudo
  • Patent number: 9557149
    Abstract: A method of deactivating an explosive composition provided in an explosive cartridge, which method comprises exposing the explosive composition to a deactivating agent that renders the explosive composition insensitive to detonation, wherein the deactivating agent is a chemical.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: January 31, 2017
    Assignee: Orica Explosives Technology Pty Ltd
    Inventors: Thomas Smylie, Richard John Goodridge, Deane Tunaley, Steven Kotsonis, Les Armstrong, Brad Beikoff
  • Patent number: 9555420
    Abstract: A process of treating a gas stream containing mercury is disclosed.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: January 31, 2017
    Assignee: Nalco Company
    Inventors: Bruce A. Keiser, Nicholas S. Ergang, Richard Mimna
  • Patent number: 9550172
    Abstract: A structurally promoted precipitated catalyst containing crystalline silica, at least one chemical promoter selected from the group consisting of alkali metals, and iron, the structurally promoted precipitated catalyst comprising maghemite and hematite catalytic phases, and exhibiting a main reduction peak temperature, as determined by TPR, in the range of from about 210° C. to about 350° C. A method of producing the structurally promoted precipitated catalyst is also provided.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: January 24, 2017
    Assignee: RES USA, LLC
    Inventors: Dawid J. Duvenhage, Belma Demirel
  • Patent number: 9550674
    Abstract: An object of the present invention is to reduce costs while maintaining safety in exhausting hydrogen sulfide gas. In exhaust facilities of a plant for manufacturing hydrogen sulfide gas, the concentrations of hydrogen sulfide gas leaking from a reaction facility, a cooling facility, and a sulfur removal facility, respectively, are measured by a measuring apparatus, and when a detected concentration is less than a predetermined concentration, a valve is controlled to exhaust hydrogen sulfide gas from a first exhaust pipe into the air, on the contrary, when a detected concentration is not less than a predetermined concentration, the valve is controlled to exhaust hydrogen sulfide gas from a second exhaust pipe to a gas treatment facility.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: January 24, 2017
    Inventors: Osamu Nakai, Satoshi Matsubara, Tomoyuki Hirose, Koichi Nakagawa
  • Patent number: 9539538
    Abstract: A multi-functional composition of matter that is useful for injection into a flue gas stream to rapidly and efficiently remove mercury from the flue gas stream. The multi-functional composition of matter may include a fixed carbon sorbent and minerals, halogens in the form of halide salts, as well as other physical and chemical properties to enhance (1) the oxidation reaction kinetics for the oxidation of mercury species and (2) the mass diffusion kinetics of the mercury species.
    Type: Grant
    Filed: August 16, 2012
    Date of Patent: January 10, 2017
    Assignee: ADA Carbon Solutions, LLC
    Inventors: Joseph M. Wong, Robert B. Huston, Christopher Vizcaino, Frederick S. Cannon
  • Patent number: 9536630
    Abstract: A method for removing radioactive cesium and/or iodine from a radioactive substance in liquid and/or a solid matter using a hydrophilic resin composition comprising a hydrophilic resin and a metal ferrocyanide compound, wherein the hydrophilic resin includes at least one hydrophilic resin selected from the group consisting of a hydrophilic polyurethane resin, a hydrophilic polyurea resin, and a hydrophilic polyurethane-polyurea resin each having at least a hydrophilic segment, and a metal ferrocyanide compound is dispersed in the hydrophilic resin composition in a ratio of at least 1 to 200 mass parts relative to 100 mass parts of the hydrophilic resin.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: January 3, 2017
    Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Ukima Chemicals & Color Mfg. Co., Ltd.
    Inventors: Kazuyuki Hanada, Manabu Uruno, Kazuya Kimura, Kenichi Takahashi
  • Patent number: 9527030
    Abstract: Provided is a method for effectively preventing fouling of an exhaust gas flow path of a burning equipment due to ammonium hydrogen sulfate; and thus, the method for preventing fouling of an exhaust gas flow path of a burning equipment in the present invention comprises: a step of adding a tertiary amine and/or a quaternary ammonium compound to an exhaust gas which contains ammonium hydrogen sulfate which is generated in a burning equipment thereby forming a reaction product between the ammonium hydrogen sulfate and the tertiary amine and/or the quaternary ammonium compound, and a step of controlling a temperature and a relative humidity in at least a part of an exhaust gas flow path of the burning equipment in such a way that the reaction product may be kept in a solid state.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: December 27, 2016
    Inventors: Satoshi Fujita, Kouichi Tanaka, Masahiko Mitsuta
  • Patent number: 9517935
    Abstract: A method of producing micronized sulphur wherein elemental sulphur is dissolved in a solvent for sulphur to produce a sulphur-solvent solution and precipitation of the dissolved sulphur is effected or controlled by manipulation of at least one of pressure, temperature or water content in the solvent to produce the micronized sulphur.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: December 13, 2016
    Assignee: CCR Technologies, Ltd.
    Inventors: Raymond G. F. Abry, Todd Beasley, Richard Lyle Johnson, Richard Eugene Kuzub, Jin Kwon Tak
  • Patent number: 9511324
    Abstract: The invention relates to an SCR catalytic convertor system and a method for operating a reductant metering process of an SCR catalytic converter system (14) of an internal combustion engine (10), wherein the SCR catalytic converter system (14) has a first SCR exhaust emission control device (16), an SCR catalytic converter (18) arranged downstream of the SCR exhaust emission control device, and a reductant metering device (20) for metering a reductant into the exhaust gas flow upstream of the first SCR exhaust emission control device (16), wherein the reductant metering process is controlled at least depending on a temperature of the first SCR exhaust emission control device (16) and of the SCR catalytic converter (18) arranged downstream, wherein (I) if the temperature of the first SCR exhaust emission control device (16) is greater than or equal to a predetermined minimum temperature (T_SPF min) and the SCR catalytic converter (18) arranged downstream is less than a predetermined minimum temperature (T_SCR
    Type: Grant
    Filed: May 6, 2013
    Date of Patent: December 6, 2016
    Inventors: Giampaolo Nigro, Martina Kösters, Thorsten Düsterdiek