Patents Examined by Sheng H Davis
  • Patent number: 10478775
    Abstract: The present invention relates generally to the field of emission control equipment for boilers, heaters, kilns, or other flue gas-, or combustion gas-, generating devices (e.g., those located at power plants, processing plants, etc.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: November 19, 2019
    Assignee: The Babcock & Wilcox Company
    Inventors: Prasanna Seshadri, Richard DeVault
  • Patent number: 10471385
    Abstract: Herein are disclosed compositions of matter, processes of manufacture and processes of use of solid state admixtures that include an inorganic base and a sulfide selected from the group consisting of an ammonium sulfide, an alkali metal sulfide, an alkali-earth metal sulfide, transition metal sulfide, and a mixture thereof. The composition can include solid state inorganic bases (e.g., calcium hydroxide and sodium sesquicarbonate) and/or gaseous bases (e.g., ammonia) and, optionally, a support material for one or more of the inorganic base and sulfide. The compositions are useful for capturing environmental contaminants, for example, from the flue gas of a coal fired power plant.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: November 12, 2019
    Assignee: Novinda Corporation
    Inventor: Thomas K. Gale
  • Patent number: 10472287
    Abstract: A method of manufacturing a sulfide-based ceramic element, such as a transparent infrared optical element, comprises the steps of: synthesizing a sulfide powder; and sintering the powder to form the ceramic element; wherein the step of synthesizing the sulfide powder is performed by combustion in an aqueous solution, the solution comprising water as its only solvent, or containing water as its main solvent and at most 10%, and preferably at most 1% of the overall solvent mass, of one or more combustible solvents. The sulfide powder may be chosen, in particular, among ZnS, BaLa2S4, CaLa2S4.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: November 12, 2019
    Inventors: Noha Hakmeh, Odile Merdrignac-Conanec, Xiang-Hua Zhang
  • Patent number: 10465026
    Abstract: A system and method for charging a chromium-based catalyst to a mix vessel; introducing a reducing agent through an entrance arrangement into the mix vessel, and agitating a mixture of the chromium-based catalyst, the reducing agent, and a solvent in the mix vessel to promote contact of the reducing agent with the chromium-based catalyst to give a reduced chromium-based catalyst.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: November 5, 2019
    Assignee: Univation Technologies, LLC
    Inventors: John H. Moorhouse, Kevin J. Cann, Mark G. Goode, Kevin R. Gross
  • Patent number: 10464019
    Abstract: The present invention relates to a nickel-based catalyst for oxidizing carbon monoxide, which is prepared by forming nickel oxide on the surface of a mesoporous support by one or more cycles of atomic layer deposition, and a use thereof. The nickel-based catalyst for oxidizing carbon monoxide according to the present invention is stable at high temperatures because the size of the nickel oxide particles can be restricted to nanometer scales even at high-temperature conditions. In addition, the nickel-based catalyst exhibits catalytic reactivity for oxidation of carbon monoxide even at room temperatures. Additionally, the catalytic activity, which has been deactivated after conducting the catalytic reaction, can be regenerated through annealing and increased gradually through repeated annealing.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: November 5, 2019
    Assignee: Research & Business Foundation Sungkyunkwan University
    Inventors: Young Dok Kim, Dae Han Kim, Ju Ha Lee, Myung Geun Jeong, Sang Wook Han
  • Patent number: 10464812
    Abstract: Provided is a method for catalytically reducing selenium. Hydrogen peroxide is used as a catalyst, and a reducer is added to a hexavalent-selenium-containing solution for reaction so as to reduce the selenium to elemental selenium, wherein the standard oxidation-reduction potential of the reducer is lower than the standard oxidation-reduction potential of the conversion of the hexavalent selenium to elemental selenium. The present method can further reduce a hexavalent-selenium element-containing selenic acid or selenate solution to an elemental selenium product in one step.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: November 5, 2019
    Assignee: Central South University
    Inventors: Xueyi Guo, Runze Xu, Dong Li, Qinghua Tian
  • Patent number: 10449486
    Abstract: A plasma abatement process for abating effluent containing compounds from a processing chamber is described. A plasma abatement process takes gaseous foreline effluent from a processing chamber, such as a deposition chamber, and reacts the effluent within a plasma chamber placed in the foreline path. The plasma dissociates the compounds within the effluent, converting the effluent into more benign compounds. Abating reagents may assist in the abating of the compounds. The abatement process may be a volatizing or a condensing abatement process. Representative volatilizing abating reagents include, for example, CH4, H2O, H2, NF3, SF6, F2, HCl, HF, Cl2, and HBr. Representative condensing abating reagents include, for example, H2, H2O, O2, N2, O3, CO, CO2, NH3, N2O, CH4, and combinations thereof.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: October 22, 2019
    Assignee: Applied Materials, Inc.
    Inventors: Michael S. Cox, Monique McIntosh, Colin John Dickinson, Paul E. Fisher, Yutaka Tanaka, Zheng Yuan
  • Patent number: 10443463
    Abstract: The invention relates to a catalyst system for reducing nitrogen oxides, which comprises a nitrogen oxide storage catalyst and an SCR catalyst, wherein the nitrogen oxide storage catalyst consists of at least two catalytically active washcoat layers on a supporting body, wherein a lower washcoat layer A contains cerium oxide, an alkaline earth compound and/or alkali compound, as well as platinum and palladium, and an upper washcoat layer B, which is arranged over the washcoat layer A, contains cerium oxide, platinum and palladium, and no alkali compound and no alkaline earth compound. The invention also relates to a method for converting NOx in exhaust gases of motor vehicles that are operated by means of engines that are operated in a lean manner.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: October 15, 2019
    Assignee: UMICORE AG & CO. KG
    Inventors: Ruediger Hoyer, Thomas Utschig, Michael Schiffer, Michael Seyler, Frank-Walter Schuetze
  • Patent number: 10434471
    Abstract: Active catalysts for the treatment of a low temperature exhaust gas stream are provided containing copper oxides dispersed on a spinel oxide for the direct, lean removal of nitrogen oxides from the exhaust gas stream. The low temperature, direct decomposition is accomplished without the need of a reductant molecule. In one example, CuOx may be dispersed as a monolayer on a metal oxide support, such as Co3O4 spinel oxide, synthesized using an incipient wetness impregnation technique. The CuOx/Co3O4 catalyst system converts nitric oxide to nitrogen gas with high product specificity, avoiding the production of a significant concentration of the undesirable N2O product.
    Type: Grant
    Filed: April 17, 2017
    Date of Patent: October 8, 2019
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Torin C. Peck, Michael Jones, Krishna R. Gunugunuri, Charles Alexander Roberts
  • Patent number: 10427195
    Abstract: A method and system for the reduction of contamination in soil and groundwater is provided. Cyclic oligosaccharides can be used, for example, to carry oxidants, carry activators, solubilize organic contaminants and promote biodegradation.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: October 1, 2019
    Assignee: OXYTEC LLC
    Inventor: Raymond G. Ball
  • Patent number: 10421674
    Abstract: The invention relates to a process for separating off and/or recovering nitrogen compounds, in particular for separating off ammonia and/or recovering or producing nitrogen fertilizer, from a liquid or sludge substrate, in which a liquid or sludge substrate is introduced into a degassing vessel to which subatmospheric pressure is applied and ammonia gas formed is introduced by means of a vacuum pump into at least one scrubber which is located downstream of the degassing vessel and to which subatmospheric pressure is applied and into which acid is introduced, wherein the acid or an ammonium salt-containing liquid obtained in the at least one scrubber is taken off from the at least one scrubber, cooled and subsequently sprayed back into the at least one scrubber. The invention further relates to a plant for carrying out such a process.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: September 24, 2019
    Inventor: Andreas Dünnebeil
  • Patent number: 10413890
    Abstract: STA-19, a molecular sieve having a GME structure and phosphorus in the framework, is described. STA-19AP (as prepared) can have a lower alkyl amine, such as trimethylamine, and olig-(1,4-diazabicyclo[2.2.2]octane)-pentyl dibromide ([DABCO-C5]x where x represents the number of repeating units) or olig-(1,4-diazabicyclo[2.2.2] octane)-hexyl dibromide ([DABCO-C6]x) as SDAs. A lower alkyl ammonium hydroxide, such as tetrabutylammonium hydroxide (TBAOH), can be used as a pH modifier for the preparation of SAPO-STA-19. A calcined product, STA-19C, formed from STA-19AP is also described. Methods of preparing STA-19AP, STA-19C and metal containing calcined counterparts of STA-19C are described along with methods of using STA-19C and metal containing calcined counterparts of STA-19C in a variety of processes, such as treating exhaust gases and converting methanol to olefins are described.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: September 17, 2019
    Assignee: Johnson Matthey Public Limited Company
    Inventors: John Casci, Alessandro Turrina, Paul Wright
  • Patent number: 10414668
    Abstract: A technique for exfoliating a transition metal dichalcogenide material to produce separated nano-scale platelets includes combining the transition metal dichalcogenide material with a liquid to form a slurry, wherein the transition metal dichalcogenide material includes layers of nano-scale platelets and has a general chemical formula MX2, and wherein M is a transition metal and X is sulfur, selenium, or tellurium. The slurry of the transition metal dichalcogenide material is treated with an oxidant to form peroxo-metalate intermediates on an edge region of the layers of nano-scale platelets of the transition metal dichalcogenide material. The peroxo-metalate intermediates is treated with a reducing agent to form negatively charged poly-oxo-metalates to induce separation of the transition metal dichalcogenide material into the separated nano-scale platelets of the transition metal dichalcogenide material.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: September 17, 2019
    Assignee: United States of America as represented by the Secretary of the Air Force
    Inventors: Richard A. Vaia, Ali M. Jawaid
  • Patent number: 10406481
    Abstract: An aftertreatment component for use in an exhaust aftertreatment system. The aftertreatment component comprises an aftertreatment substrate and a compressible material. The compressible material may be formed from a plastic thermoset, a rubberized material, or a metal foil which permits for the selective expansion of the substrate within the compressible material, while also reducing cost and manufacturing complexity. In various embodiments, the aftertreatment substrate and the compressible materials may be formed separately and coupled to each other, or they may be formed concurrently via coextrusion.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: September 10, 2019
    Assignee: Cummins Emission Solutions Inc.
    Inventors: Matthew Anderson, Arpad Somogyvari
  • Patent number: 10407799
    Abstract: The disclosure relates to a semimetal compound of Pt and a method for making the same. The semimetal compound is a single crystal material of PtSe2. The method comprises: providing a PtSe2 polycrystalline material; placing the PtSe2 polycrystalline material in a reacting chamber; placing chemical transport medium in the reacting chamber; evacuating the reacting chamber to be vacuum less than 10 Pa; placing the reacting chamber at a temperature gradient, wherein the reacting chamber has a first end at a temperature of 1200 degrees Celsius to 1000 degrees Celsius and a second end opposite to the first end and at a temperature of 1000 degrees Celsius to 900 degrees Celsius; and keeping the reacting chamber in the temperature gradient for 10 days to 30 days.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: September 10, 2019
    Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Ke-Nan Zhang, Ming-Zhe Yan, Shu-Yun Zhou, Yang Wu, Shou-Shan Fan
  • Patent number: 10406513
    Abstract: The present application is directed to a method for the conversion of nitrous acid to dinitrogen gas. In particular, the present application relates to a method for the conversion of nitrous acid to dinitrogen gas by contacting the nitrous acid with an amine-functionalized metal organic framework.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: September 10, 2019
    Assignee: Memorial University of Newfoundland
    Inventors: Michael Katz, Cora Young, Trevor VandenBoer, Michaela Deborah Ryan, John Joseph MacInnis
  • Patent number: 10399036
    Abstract: A method for the cleaning of exhaust gas from a compression ignition engine, comprising the steps of injecting a first amount of an aqueous urea solution into the gas; in a first mode of operation and at an exhaust gas temperature of between 150 and 220° C. hydrolysing the first amount of urea to ammonia reducing agent in presence of a first catalyst comprising vanadium oxide supported on titania and subsequently removing part of nitrogen oxides contained in the exhaust gas by contacting the gas mixed with the ammonia reducing agent through a second catalyst comprising platinum on titania and/or alumina; and in a second mode of operation and at an exhaust gas temperature above 220° C. removing a part of the nitrogen oxides in presence of the first catalyst and the ammonia reducing agent and subsequently oxidising hydrocarbons, carbon monoxide and remaining amount of the ammonia reducing agent further contained in the exhaust gas by passing the gas through the second catalyst.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: September 3, 2019
    Assignee: Umicore AG & Co. KG
    Inventor: Pär L. T. Gabrielsson
  • Patent number: 10399035
    Abstract: An aqueous composition including an NOx reducing agent or a precursor of such an agent, in particular urea, and at least one paraffin dispersed in the aqueous phase. Such a composition can be used for reducing the formation of deposits in an SCR exhaust system while preventing foaming during the handling of same.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: September 3, 2019
    Inventor: Annabelle Collin
  • Patent number: 10399067
    Abstract: The invention provides a process for preparing SAPO-11, that comprises combining in an aqueous solution alumina source, P 2 O source and a silica source in the presence of a crystallization template and a surfactant to form a gel, which is then subjected to hydrothermal crystallization and calcination. The so-formed SAPO-11, which possesses unique silicon distribution, high resistance to hydrothermal degradation (desilication) and high surface area, forms another aspect of the invention. Hydroprocessing of a vegetable oil in the presence of a catalyst comprising the Pt and SAPO-11 of the invention is also demonstrated.
    Type: Grant
    Filed: January 4, 2015
    Date of Patent: September 3, 2019
    Inventors: Miron Landau, Mordechai Herskowitz, Moshe Rabaev, Roksana Vidruk
  • Patent number: 10370258
    Abstract: A method for complex treatment of phosphogypsum comprising crushing of phosphogypsum and its washing with a solution of sulphuric acid, concentration 2-15%, and stirring at 50-80? C.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: August 6, 2019
    Assignee: FERIN SP. Z O.O
    Inventor: Wlodzimierz Merka