Patents Examined by Timothy C Vanoy
  • Exhaust gas purification catalyst, exhaust gas purification method, and production method for exhaust gas purification catalyst
    Patent number: 11446639
    Abstract: An exhaust gas cleaning catalyst is provided with a fire-resistant three-dimensional structural body, a first catalyst layer provide on a first surface side of the fire-resistant three-dimensional structural body, and a second catalyst layer provided on a side of the first catalyst layer opposite to the fire-resistant three-dimensional structural body. The first catalyst layer contains: a complex oxide including cerium and zirconium; and elemental rhodium. The second catalyst layer contains: a complex oxide including cerium and zirconium; and elemental palladium. The amount of cerium included in the second catalyst layer, in terms of cerium dioxide, is 10-25 g per liter of the fire-resistant three-dimensional structural body.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: September 20, 2022
    Assignee: UMICORE SHOKUBAI JAPAN CO., LTD.
    Inventors: Yuji Ogino, Yusuke Haneda
  • Integrated process for filtering constituents from a gas stream
    Patent number: 11441116
    Abstract: The invention provides a process for producing a fermentable gas stream from a gas source that contains one or more constituent which may be harmful to the fermentation process. To produce the fermentable gas stream, the gas stream is passed through a specifically ordered series of removal modules. The removal modules remove and/or convert various constituents found in the gas stream which may have harmful effects on downstream removal modules and/or inhibitory effects on downstream gas fermenting microorganisms. At least a portion of the fermentable gas stream is preferably capable of being passed to a bioreactor, which contains gas fermenting microorganisms, without inhibiting the fermentation process.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: September 13, 2022
    Assignee: LanzaTech, Inc.
    Inventors: Richard Rosin, Jason Greene, Taylor Schulz
  • Process system and process method for conversion of sulfur-containing flue gas to sulfuric acid
    Patent number: 11440798
    Abstract: Disclosed is a process system and a process for converting the sulfur-containing flue gas into the sulfuric acid. The process system comprises: a flue gas preheater, which for preheating the sulfur-containing flue gas to 15˜30° C. above its dew point, and the flue gas preheater has a glass tube as a heat exchange tube; a flue gas fan for boosting the pressure of the preheated acid process gas and transporting one part of which to a combustion furnace, and the other part of which to a process gas steam heater; a sulfuric acid steam condenser for condensing SO3 generated by the combined reactor into sulfuric acid. The device of the present invention can resist the fluctuation of SO2 concentration in the feed gas, and can realize considerable economic benefits and rational utilization of energy.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: September 13, 2022
    Assignees: KEYON PROCESS CO., LTD
    Inventors: Rui Huang, Dan Wang, Huayong Zhang, Yuan Zhang, Junling Qi
  • Gas purification apparatus, ship including the same, and gas purification method
    Patent number: 11439942
    Abstract: A gas purification apparatus includes: a housing to which a gas is introduced; a filter portion for removing an impure substance in the gas from the gas, the filter portion being disposed inside the housing; and a gas purification agent for removing a removal target substance in the gas from the gas, the gas purification agent being disposed, inside the housing, on the filter portion or in a space at a downstream side of the filter portion with respect to a flow of the gas.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: September 13, 2022
    Assignee: Mitsubishi Heavy Industries Engineering, Ltd.
    Inventors: Masayuki Inui, Makoto Susaki, Akihito Otani
  • Low temperature nitrogen oxide adsorber
    Patent number: 11439952
    Abstract: The present invention relates to a composite metal oxide which comprises 80 to 97 wt %, in relation to the weight of the composite metal oxide, of one or more oxides of cerium and 3 to 20 wt %, in relation to the composite metal oxide of a metal oxide comprising tin oxide (SnO2) and lanthanum oxide (La2O3) and/or aluminum oxide (Al2O3), a composite material for the storage of nitrogen oxides which comprises such composite metal oxide and palladium, as well as an exhaust gas system containing said composite material.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: September 13, 2022
    Assignee: UMICORE AG & CO. KG
    Inventors: Elena Mueller, Kris Driesen
  • System and method for mixing recirculating combustion ash with hydrated lime and water
    Patent number: 11439947
    Abstract: A mixer for recirculating ash from solid fuel combustion with hydrated lime and water and to feed the mixture into a desulfurization reactor. The mixer includes a housing having a front wall, two outer vertical sidewalls, a rear wall, a top, and a bottom, the top includes a feed chute configured for the entry and addition of product to the mixer, and the front wall includes an opening for the mixture of product to exit. The mixer also includes a rotatable vertical shaft having an impeller, the impeller having a plurality of blades disposed on the vertical shaft in the same horizontal plane and distributed equidistantly about the circumference of the vertical shaft. The mixer also includes a vertical wall disposed within the housing forming a mixing region and a feeding region that is operably connected to the opening of the front wall.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: September 13, 2022
    Assignee: ANDRITZ AKTIEBOLAG
    Inventors: Nabil Rafidi, Ali Mustapha Tabikh, Robert Rahlin, Wuyin Wang, Bjorn Sture Rikard Hakansson
  • Gas purification device
    Patent number: 11441087
    Abstract: A gas purification device removes a part of ammonia contained in a first gas; recovers a first off-gas containing the removed ammonia, removes hydrogen sulfide and ammonia from a second gas produced by removing the part of ammonia, recovers a second off-gas containing the removed hydrogen sulfide and ammonia, and combusts the first off-gas and the second off-gas. The gas purification device includes: a first combustion chamber in which combustion is performed in a reducing atmosphere; a second combustion chamber in which combustion is performed in a reducing atmosphere downstream of the first combustion chamber; and a third combustion chamber in which combustion is performed in an oxidizing atmosphere downstream of the second combustion chamber. The first off-gas flows into the first combustion chamber and the second off-gas flows into the third combustion chamber.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: September 13, 2022
    Assignee: Mitsubishi Heavy Industries Engineering, Ltd.
    Inventors: Kaori Yoshida, Ayumu Yamazaki, Rikio Kan, Seiji Kakesako
  • Catalyst for reducing carbon monoxide and hydrocarbon, and method for preparing the same
    Patent number: 11433380
    Abstract: The present disclosure provides a catalyst for reducing CO and HC which is a core-shell particle including a core and a shell surrounding the core, the core includes metal oxide nanoparticles and noble metal nanoparticles fixed to the metal oxide nanoparticles, and the shell includes zirconia (ZrO2), and a layer from which the metal oxide is removed between the core and the shell is included.
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: September 6, 2022
    Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Kwan-Young Lee, Dalyoung Yoon, Jin Woo Choung, Jungkyu Choi, Eun Jun Lee, Yaeun Seo, Haney Park
  • Ultrafine-bubble generation agent including high-CO2-content ice
    Patent number: 11434137
    Abstract: An object of the present invention is to provide an ultrafine bubble generating agent capable of easily generating ultrafine bubbles in a liquid without requiring an ultrafine-bubble generator, a method for producing an ultrafine bubble-containing liquid, an ultrafine bubble-containing liquid produced by the same production method, and the like. The method for producing an ultrafine bubble-containing liquid of the present invention comprises melting ice having a CO2-content rate of 3 wt % or more (preferably a CO2 hydrate).
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: September 6, 2022
    Assignee: NIPPON EKITAN Corporation
    Inventors: Yoshihiko Sugihara, Takahiro Eguchi, Hiroyuki Murakami
  • Catalyst for use in the selective catalytic reduction (SCR) of nitrogen oxides
    Patent number: 11426709
    Abstract: The present invention pertains to a catalyst for use in the selective catalytic reduction (SCR) of nitrogen oxides comprising: • a monolithic substrate and • a coating A which comprises an oxidic metal carrier comprising an oxide of titanium and a catalytic metal oxide which comprises an oxide of vanadium wherein the mass ratio vanadium/titanium is 0.07 to 0.26.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: August 30, 2022
    Assignee: Umicore AG & Co. KG
    Inventors: Kim Hougaard Pedersen, Anders Hjordt Pedersen, Martin Dam
  • Preparation method for insoluble sulfur and anti-reversion stabilizer used thereby
    Patent number: 11427469
    Abstract: Provided are a preparation method for insoluble sulfur and an anti-reversion stabilizer used thereby. Methane is used as the anti-reversion stabilizer. The methane is added to liquid sulfur at sulfur gasification stage, and is cracked into active free radicals under the action of sulfur vapor active free radicals; in the quenching process of sulfur vapor mixed with methane, the active free radicals generated by methane cracking carry out end capping on insoluble sulfur end groups generated by sulfur vapor polymerization, thus completing insoluble sulfur stabilization. The methane is added at liquid sulfur gasification stage, and after sulfur gasification, the methane is mixed with sulfur vapor in a gaseous form, rather than being added to the product in a solid or liquid manner at a later stage, so that the insoluble sulfur and the stabilizer can be uniformly contacted and mixed to the greatest extent.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: August 30, 2022
    Assignee: SHANDONG YANGGU HUATAI CHEMICAL CO, LTD.
    Inventors: Mengcheng Du, Qingfei Guo, Weimin Wang
  • Method of reducing carbon dioxide and metal-containing dust
    Patent number: 11420160
    Abstract: The invention relates to a method of reducing carbon dioxide and metal-containing dust and, more particularly, to a method of simultaneously reducing carbon dioxide and metal-containing dust by passing an off-gas, which contains carbon dioxide or carbon dioxide and metal-containing dust, through a reactor in which a sulfur-oxidizing microorganism is grown using carbon dioxide as a carbon source to produce sulfuric acid, and producing metal sulfates (MeSO4) by reaction of the produced sulfur acid with metal components present in the off-gas.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: August 23, 2022
    Assignee: SK Innovation Co., Ltd.
    Inventors: Yeon Hwa La, Kwang Kuk Cho
  • Hydrogen sulfide-carbon dioxide membrane separation systems and processes
    Patent number: 11420153
    Abstract: A process for recovering sulfur from a sour gas is provided. The process includes the steps of: providing the sour gas to a membrane separation unit having a carbon dioxide-selective membrane that comprises a perfluoropolymer, wherein the sour gas comprises carbon dioxide and at least 1 mol % hydrogen sulfide; separating the sour gas using the carbon dioxide-selective membrane in the membrane separation stage to obtain hydrogen sulfide-enriched gas and hydrogen sulfide-stripped gas, wherein the hydrogen sulfide-enriched gas has a hydrogen sulfide concentration of at least 20 mol %, and wherein the hydrogen sulfide-stripped gas comprises carbon dioxide; and processing the hydrogen sulfide-enriched gas in a sulfur recovery unit to obtain sulfur.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: August 23, 2022
    Assignees: MEMBRANE TECHNOLOGY AND RESEARCH, INC.
    Inventors: Milind M. Vaidya, Sebastien A. Duval, Feras Hamad, Richard Baker, Tim Merkel, Kaaeid Lokhandwala, Ahmad A. Bahamdan, Faisal D. Al-Otaibi
  • Process and apparatus for alkyl halide fumigant recovery and conversion
    Patent number: 11420158
    Abstract: Process and apparatus are disclosed for capturing and converting an ozone-depleting alkyl halide fumigant from a fumigant/air mixed stream (14) by absorbing it into a metal hydroxide-alcohol buffer solution (26) in an absorber/scrubber (12) to produce a fumigant-free air stream. The captured alkyl halide in aqueous alcohol solution can actively react with the metal hydroxide in alcohol solution to produce a value-added product, such as a precipitate metal halide, and another alcohol that further enhances absorption. The absorbing solution is well-mixed with make-up alcohol and alkali streams to maintain the concentration of the metal hydroxide in the desired buffer solution range. The solid precipitate metal halide is separated from the liquid stream, and the metal hydroxide-containing mixed alcohol stream is recycled to the absorber/scrubber (12).
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: August 23, 2022
    Assignee: The Trustees of the Stevens Institute of Technology
    Inventors: Adeniyi Lawal, Lin Zhou
  • Systems, methods and materials for hydrogen sulfide conversion
    Patent number: 11413574
    Abstract: Systems and methods use bimetallic alloy particles for converting hydrogen sulfide (H2S) to hydrogen (H2) and sulfur (S), typically during multiple operations. In a first operation, metal alloy composite particles can be converted to a composite metal sulfide. In a second operation, composite metal sulfide from the first operation can be regenerated back to the metal alloy composite particle using an inert gas stream. Pure, or substantially pure, sulfur can also be generated during the second operation.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: August 16, 2022
    Assignee: OHIO STATE INNOVATION FOUNDATION
    Inventors: Liang-Shih Fan, Sourabh G. Nadgouda, Kalyani V. Jangam
  • Method for treating gas
    Patent number: 11413576
    Abstract: The present invention provides a method for treating a gas, comprising: step (A): collecting a gas comprising carbon dioxide and fine particulate matter; step (B): rinsing the gas with water to obtain a rinsed gas; and step (C): contacting the rinsed gas with a basic solution in a way of co-current flow to absorb the carbon dioxide in the rinsed gas by the basic solution to obtain a treated gas and a weak basic solution; wherein the pH value of the basic solution is between 9 and 14, and the pH value of the weak basic solution is between 8 and 8.5. The method can reduce the content of both fine particulate matter and carbon dioxide.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: August 16, 2022
    Inventor: Cheng-Jen Lin
  • Metal-organic frameworks containing metal-hydroxide moieties and methods of making and using thereof
    Patent number: 11413565
    Abstract: Disclosed are MOFs containing nucleophilic transition metal hydroxide (M-OH) groups. In certain embodiments, these MOFs can include a plurality of metal ions, each coordinated with one or more hydroxide ligands and one or more backbone ligands. In certain embodiments, the MOFs can comprise Kuratowski cluster-based secondary building units (SBUs). These MOFs can exhibit excellent performance for low pressure CO2 capture via a CO2/HCO3? fixation mechanism in which cooperative inter-cluster hydrogen bonding interactions enhance CO2 capture performance. Also provided are methods of making MOFs including one or more metal hydroxide moieties, as well as methods of using these MOFs to capture an acidic gas (e.g., CO2, SO2, NO2, or acetylene).
    Type: Grant
    Filed: June 11, 2019
    Date of Patent: August 16, 2022
    Assignee: Ohio State Innovation Foundation
    Inventors: Casey Wade, Caitlin Bien, Zhongzheng Cai
  • Diesel oxidation catalysts for ultralow NOcontrol
    Patent number: 11413607
    Abstract: The present disclosure is directed to a Low Temperature NOx-Absorber (LT-NA) catalyst composition which exhibits NOx adsorption in a broad temperature and space velocity range, and shifts NOx desorption to a desired temperature range. In particular, the LT-NA composition includes a large pore zeolite containing a palladium component and a small or medium pore zeolite containing a palladium component. Further provided is a catalyst article including the LT-NA catalyst composition, an emission treatment system for treating an exhaust gas including the catalyst article, and methods for reducing a NOx level in an exhaust gas stream using the catalyst article.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: August 16, 2022
    Assignee: BASF Corporation
    Inventors: Jia Cheng Liu, Evan Vincent Miu, Xiaoming Xu, Xinyi Wei, Stefan Maurer
  • Method and apparatus for reduction of HCI emission from cement plants using cement raw meal as absorber
    Patent number: 11413575
    Abstract: The invention relates to a method for reduction of HCl emission from a cement plant based on a treatment of a preheater (1) and/or bypass gas stream, characterized in that a cement raw meal, as a HCl absorber, is dispersed in the gas stream(s) from which HCl is to be removed; the cement raw meal is introduced from a raw mill (6) and/or a silo (8) into a pipe with a up going gas flow; the pipe being arranged in fluid communication at a point after a gas conditioning tower (7) and/or before a particle filter unit (5) and/or in a by-pass line before particle filter (4).
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: August 16, 2022
    Inventors: Lars Skaarup Jensen, Stylianos Pachitsas
  • Alkaline cation enrichment and water electrolysis to provide COmineralization and global-scale carbon management
    Patent number: 11413578
    Abstract: Provided herein are methods of removing carbon dioxide from an aqueous stream or gaseous stream by: contacting the gaseous stream comprising carbon dioxide, when present, with an aqueous solution comprising ions capable of forming an insoluble carbonate salt; contacting the aqueous solution comprising carbon dioxide with an electroactive mesh that induces its alkalinization thereby forcing the precipitation of a carbonate solid from the solution and thereby the removal of dissolved inorganic carbon by electrolysis; and removing the precipitated carbonate solids from the solution, or the surface of the mesh where they may deposit. Also provided herein are flow-through electrolytic reactors comprising an intake device in fluid connection with a rotating cylinder comprising an electroactive mesh, and a scraping device and/or liquid-spray based device for separating a solid from the mesh surface.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: August 16, 2022
    Assignee: The Regents of the University of California
    Inventors: Gaurav Sant, Erika Callagon La Plante, Jingbo Wang, David Jassby, Dante Simonetti, Abdulaziz Alturki, Xin Chen