Patents Examined by Timothy C Vanoy
  • Patent number: 10435299
    Abstract: A process for preparing sulfuric acid may involve melting elemental sulfur in a melting stage to give molten sulfur. Sulfuric acid is subsequently produced from the molten sulfur. Further, sulfur-containing offgases formed in the melting stage may be subjected to oxidation in a supplementary oxidation stage in which sulfur-containing components of the offgases are oxidized to sulfur dioxide. The process may further involve processing the sulfur dioxide to give at least one reaction product. The melting stage may be operated without emissions by processing all of the offgases from the melting stage. An apparatus may be employed for carrying out such a process.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: October 8, 2019
    Assignees: THYSSENKRUPP INDUSTRIAL SOLUTIONS AG, THYSSENKRUPP AG
    Inventors: Holger Thielert, Zion Guetta
  • Patent number: 10427137
    Abstract: A catalyst for treating fuel combustion exhaust, the catalyst comprising the following components: (i) an oxide support comprising silicon oxide, aluminum oxide, or combination of silicon and aluminum oxides; (ii) cerium oxide, zirconium oxide, or a combination of cerium and zirconium oxides in contact with said oxide support; and (iii) nanoparticles comprising elemental palladium or platinum in contact with at least component (ii), wherein said palladium or platinum is present in an amount of 0.1-4 wt. % by weight of the particles, and wherein surfaces of said nanoparticles of elemental palladium or palladium are exposed and accessible to said fuel combustion exhaust. Methods of producing and using the catalyst are also described.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: October 1, 2019
    Assignee: UT-Battelle, LLC
    Inventors: Eleni Kyriakidou, Todd J. Toops, Jae-Soon Choi, Michael J. Lance, James E. Parks, II
  • Patent number: 10427096
    Abstract: The present disclosure is directed to the use of elemental or speciated iodine and bromine to control total mercury emissions.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: October 1, 2019
    Assignee: ADA-ES, INC.
    Inventors: Sharon Sjostrom, Connie Senior, Jon Lagarenne, Kenneth E. Baldrey, Ramon Bisque, Michael D. Durham, Nina Bergan French
  • Patent number: 10427100
    Abstract: A method for nitrogen monoxide (NO) oxidation in catalytic systems is disclosed. The method includes receiving NO-containing exhaust gas from an internal combustion engine system, reacting NO with a stoichiometric amount of oxygen gas (O2), the reacting taking place in the presence of a sorbent and a catalyst, and recovering an amount of nitrogen dioxide (NO2) surpassing the equilibrium limitation of the NO oxidation reaction.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: October 1, 2019
    Assignee: Cummins Emission Solutions Inc.
    Inventor: Christopher J. Keturakis
  • Patent number: 10427098
    Abstract: A method for the removal of nitrogen oxides from exhaust, flue or off gas by selective catalytic reduction in presence of ammonia as a reductant, comprising the steps of contacting the exhaust gas together with the ammonia or a precursor thereof with an SCR catalyst comprising a Fe-AEI zeolite material essentially free of alkali metal ions (Alk), having the following molar compositions: SiO2:oAl2O3:pFe:qAlk wherein o is in the range from 0.001 to 0.2; wherein p is in the range from 0.001 to 0.2; wherein Alk is one or more of alkali metal ions and wherein q is below 0.02.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: October 1, 2019
    Assignee: Umicore AG & Co. KG
    Inventors: Nuria Martín García, Manuel Moliner Marín, Avelino Corma Canós, Joakim Reimer Thøgersen, Peter Nicolai Ravnborg Vennestrøm
  • Patent number: 10413865
    Abstract: Apparatus and methods for desulfurization of a sulfur-oxide containing gas by treatment with ammonia containing liquids. The apparatus and methods may utilize two distinct circuits of two different ammonia containing liquids which are applied in two distinct chambers. The gas may be cooled prior to entry into the circuits. There may be fluid communication between the two circulation circuits.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: September 17, 2019
    Assignee: Jiangnan Enviromental Protection Group Inc.
    Inventors: Jing Luo, Changxiang Xu, Xiangjun Xu, Yongying Luo
  • Patent number: 10413864
    Abstract: Methods, apparatus, and compositions for cleaning gas. The use of segmented multistage ammonia-based liquid spray with different oxidation potentials to remove sulfur compounds from gas. The use of different oxidation potentials may reduce unwanted ammonia slip.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: September 17, 2019
    Assignee: Jiangnan Environmental Protection Group Inc.
    Inventors: Jing Luo, Changxiang Xu
  • Patent number: 10406479
    Abstract: A method and apparatus for removing nitrogen oxides from gas streams, includes introducing a to-be treated gas stream into a gas-solid reaction column, and introducing ferric chloride solid particles into the gas-solid reaction tower at the same time. The nitrogen oxides in the gas streams undergo gas-solid chemical adsorption reaction with the ferric chloride solid particles to form solid products and are removed, and thereby purifying the gas.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: September 10, 2019
    Inventor: Liwei Huang
  • Patent number: 10406505
    Abstract: The present invention provides a coating composition suitable for use in forming a coating that can reduce a concentration of pollutant gases in the environment. The coating composition includes from 0.01 to 10 vol.-% of mesoporous titania particles, relative to a total volume of the coating composition, and from 5 to 99.99 vol.-% of a polymeric material, relative to the total volume of the coating composition. The mesoporous titania particles have a continuous exterior convex surface, a particle diameter of ?1 ?m but ? to 50 ?m, a BET specific surface area of from 30 to 350 m2/g, a modal pore diameter of ?5 nm but ?50 nm, and a pore size distribution so that 85% or more of a total pore volume is associated with pores having a diameter of 10 ?m or less.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: September 10, 2019
    Assignee: VENATOR MATERIALS UK LIMITED
    Inventors: John Robb, Ann Sarah Wan, Karl Lowry, Darren J. Waters, John L. Edwards
  • Patent number: 10406478
    Abstract: Apparatus and methods for desulfurization of a sulfur-oxide containing gas by treatment with ammonia containing liquids. The apparatus and methods may utilize two distinct circuits of two different ammonia containing liquids which are applied in two distinct chambers. The gas may be cooled prior to entry into the circuits. There may be fluid communication between the two circulation circuits.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: September 10, 2019
    Assignee: Jiangnan Environmental Protection Group Inc.
    Inventors: Jing Luo, Changxiang Xu, Xiangjun Xu, Yongying Luo
  • Patent number: 10406477
    Abstract: Methods, apparatus, and compositions for cleaning gas. The use of segmented multistage ammonia-based liquid spray with different oxidation potentials to remove sulfur compounds from gas. The use of different oxidation potentials may reduce unwanted ammonia slip.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: September 10, 2019
    Assignee: Jiangnan Environmental Protection Group Inc.
    Inventors: Jing Luo, Changxiang Xu
  • Patent number: 10408108
    Abstract: A reductant insertion system for delivering a reductant to an aftertreatment system comprises a reductant storage tank configured to store a liquid reductant. A pressure relief valve is operably coupled to the reductant storage tank. The pressure relief valve is configured to selectively open in response to a reductant gas pressure in the reductant storage tank exceeding a predetermined reductant gas pressure threshold. A reductant insertion assembly is fluidly coupled to the reductant storage tank and configured to deliver the liquid reductant to the aftertreatment system. The reductant insertion assembly comprises a shutoff valve configured to be selectively closed in response to a liquid reductant pressure in the reductant insertion assembly exceeding a liquid reductant pressure threshold, so as to stop delivery of the reductant from the reductant storage tank to the reductant insertion assembly.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: September 10, 2019
    Assignee: Cummins Emission Solutions Inc.
    Inventor: Matthew K. Volmerding
  • Patent number: 10408103
    Abstract: A engine exhaust system includes a diesel oxidation catalyst (DOC) configured to receive the engine exhaust gases, a first electric heater coupled to the DOC, and a selective catalytic reduction (SCR) device in fluid communication with the DOC. The engine exhaust system further includes a second electric heater coupled to the DOC, a power switch controller in electronic communication with the first electric heater and the second electric heater, and a single power source electrically coupled to the power switch controller, the first electric heater, and the second electric heater. The power switch controller includes a switch to control a power distribution between the first electric heater and the second electric heater as a function of time.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: September 10, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Yong Miao, Stefano Pellegrino
  • Patent number: 10399033
    Abstract: Apparatus and methods for desulfurization of a sulfur-oxide containing gas by treatment with ammonia containing liquids. The apparatus and methods may utilize two distinct circuits of two different ammonia containing liquids which are applied in two distinct chambers. The gas may be cooled prior to entry into the circuits. There may be fluid communication between the two circulation circuits.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: September 3, 2019
    Assignee: Jiangnan Environmental Protection Group Inc.
    Inventors: Jing Luo, Changxiang Xu, Xiangjun Xu, Yongying Luo
  • Patent number: 10399037
    Abstract: A nitrogen oxides (NOx) storage catalyst for treating an exhaust gas flow is provided. The NOX storage catalyst includes a flow-through substrate defining channels for receiving the exhaust gas flow and first and second zones present in the channels. The first zone includes a first NOX storage catalyst coating capable of storing NOX at a first adsorption temperature and releasing NOX at a first desorption temperature. The second zone includes a second NOX storage catalyst coating capable of storing NOX at a second adsorption temperature and releasing NOX at a second desorption temperature. The second desorption temperature is greater than the first desorption temperature. Methods of using the NOX storage catalyst for treating an exhaust gas stream flowing from a vehicle engine during a period following a cold-start of the engine are also provided.
    Type: Grant
    Filed: April 20, 2018
    Date of Patent: September 3, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Lei Wang, Shouxian Ren, Wei Li
  • Patent number: 10391444
    Abstract: Disclosed are systems and methods for producing oil and gas while removing hydrogen sulfide from fluids produced from oil and gas reservoirs and injecting a sour gas stream containing the hydrogen sulfide into an underground formation. Hydrogen sulfide-selective membranes are used to debottleneck known systems and methods by removing hydrogen sulfide from bottlenecked plant process steps including sour gas compression, hydrogen sulfide removal and sour gas injection. Pressure ratio across the membranes can also be manipulated to provide further debottlenecking. Gas-gas eductors are also disclosed for use in leveraging relatively high-pressure streams to boost the pressure of low pressure streams. Oil production is thus increased.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: August 27, 2019
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Daniel Chinn, Nitesh Bhuwania, Shabbir Husain, Ronald P. MacDonald, Tapan K. Das
  • Patent number: 10391478
    Abstract: A NOx adsorber catalyst composition, a NOx adsorber catalyst and its use in an emission treatment system for internal combustion engines, is disclosed. The NOx adsorber catalyst composition a support material and one or more platinum group metals disposed on the support material, wherein the support material comprises a mixed dopant NOx storage enhancer.
    Type: Grant
    Filed: October 4, 2017
    Date of Patent: August 27, 2019
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Desiree Duran-Martin, Rebecca Maksymowicz, Jonathan Radcliffe, Raj Rajaram
  • Patent number: 10384148
    Abstract: A crystallization column and a crystallization method. The crystallization column comprises an upper head (1), a tower body (2) and a lower head (3), wherein a crystallization section (11) is provided with a tray (14); and the tray (14) comprises a tray plate (15) and a plurality of lower crystallization members (17). The top end of the lower crystallization member (17) can form a movable connection with the tray plate (15), so that the two adjacent lower crystallizing members (17) are capable of oscillating collisions. The tray (14) may also comprise a plurality of upper crystallization members (21) extending upwardly from the upper surface of the tray plate (15).
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: August 20, 2019
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, Fushun Research Institute of Petroleum and Petrochemicals, SINOPEC CORP.
    Inventors: Deqiang Peng, Huimin Qi, Luyao Wang, Xin Chen, Fanfei Meng, Yan Wang, Jie Liu
  • Patent number: 10378408
    Abstract: Described herein are illustrative exhaust systems and methods including ammonia generation and storage. An illustrative system can include a first exhaust conduit to and receive a first exhaust stream from a first engine, and a second exhaust conduit to and receive a second exhaust stream from a second engine. In the illustrative example, an exhaust treatment device coupled to the second exhaust conduit downstream of the second engine can convert nitrogen oxides (NOx) in the second exhaust stream into ammonia. An ammonia storage device coupled to the second exhaust conduit downstream of the exhaust treatment device can be configured to receive and store at least a portion of the converted ammonia as stored ammonia and to release at least a portion of the stored ammonia to a catalytic converter. The catalytic converter can include a selective catalytic reduction catalyst configured to use the ammonia to reduce NOx.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: August 13, 2019
    Assignee: Caterpillar Inc.
    Inventors: James J. Driscoll, Eric L. Schroeder
  • Patent number: 10376834
    Abstract: The invention relates to a continuous process for purifying a gas containing 60-99 percent SO2 (sulfur dioxide) by volume and 1 to 40 percent steam by volume, followed by synthesis of SO3 (sulfur trioxide) without first drying the gas, and to an apparatus for carrying out said method.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: August 13, 2019
    Assignee: CHEMETICS INC.
    Inventors: Torsten Weber, Bernd Erkes, Lucia Fernandez Lopez