Patents Examined by Timothy C Vanoy
  • Process for the preparation of high purity alumina
    Patent number: 11691888
    Abstract: A method for preparing high purity alumina (HPA) is provided.
    Type: Grant
    Filed: May 15, 2021
    Date of Patent: July 4, 2023
    Assignee: Scandium International Mining Corporation
    Inventor: Willem P. C. Duyvesteyn
  • Method for production of sulfur and sulfuric acid
    Patent number: 11691877
    Abstract: A process plant and a process for production of sulfur from a feedstock gas including from 15% to 100 vol % H2S and a stream of sulfuric acid, the process including a) providing a Claus reaction furnace feed stream with a substoichiometric amount of oxygen, b) directing to a Claus reaction furnace operating at elevated temperature, c) cooling to provide a cooled Claus converter feed gas, d) directing to contact a material catalytically active in the Claus reaction, e) withdrawing a Claus tail gas and elementary sulfur, f) directing a stream comprising said Claus tail gas to a Claus tail gas treatment, wherein sulfuric acid directed to said Claus reaction furnace is in the form of droplets with 90% of the mass of the droplets having a diameter below 500 ?m, with the associated benefit of such a process efficiently converting all liquid H2SO4 to gaseous H2SO4 and further to SO2.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: July 4, 2023
    Assignee: HALDOR TOPSØE A/S
    Inventors: Morten Thellefsen, Per Aggerholm Sørensen, Martin Møllerhøj, Mads Lykke
  • Catalyst for exhaust gas oxidation, method for producing same, and exhaust gas oxidation method using same
    Patent number: 11691133
    Abstract: Described are a catalyst capable of effectively oxidizing an exhaust gas, a method for preparing the catalyst, and a method for oxidizing an exhaust gas using the catalyst. The exhaust gas oxidation catalyst includes at least two layers, a lower catalyst layer and an upper catalyst layer, laminated on a three-dimensional structure, wherein the lower catalyst layer and the upper catalyst layer independently contain precious metal and alumina and/or zeolite, and at least a part of the upper catalyst layer contains pores derived from a pore connecting agent with a combustion decomposition temperature of 300° C. or more to less than 450° C.
    Type: Grant
    Filed: November 11, 2019
    Date of Patent: July 4, 2023
    Assignee: UMICORE SHOKUBAI JAPAN CO., LTD.
    Inventors: Tatsuya Kumon, Yosuke Goto, Franz Dornhaus
  • Processes and apparatuses for reducing carbon monoxide levels in a gaseous stream
    Patent number: 11685659
    Abstract: Processes for reducing carbon monoxide levels in a carbon dioxide rich gaseous stream. The carbon dioxide rich stream is passed to a preferential oxidation zone to selectively convert carbon monoxide to carbon dioxide. Excess oxygen is consumed by reacting with hydrogen, which may be added or controlled based on PSA operating conditions upstream of the preferential oxidation zone. The preferential oxidation zone may be contained within a bed of a dryer.
    Type: Grant
    Filed: November 24, 2021
    Date of Patent: June 27, 2023
    Assignee: UOP LLC
    Inventor: Bradley Russell
  • Method for purifying ferric chloride
    Patent number: 11685667
    Abstract: A method for purifying ferric chloride, the method including: 1) adding an oxidant to an aqueous solution of an iron-containing chloride for oxidation of Fe2+, to yield a ferric chloride solution; 2) adding industrial hydrochloric acid and butyl acetate to the ferric chloride solution, shaking and resting a mixture of the ferric chloride solution, the industrial hydrochloric acid, and butyl acetate for phase separation, to yield an organic phase and an aqueous phase; 3) adding a stripping agent to the organic phase, shaking, and resting a mixture of the stripping agent and the organic phase; and collecting an aqueous phase including ferric chloride; and 4) evaporating and concentrating the aqueous phase including ferric chloride, removing butyl acetate, to yield purified ferric chloride.
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: June 27, 2023
    Assignees: 3R ENVIRONMENTAL TECHNOLOGY CO., LTD., TANGSHAN 3R CHEMICAL CO., LTD.
    Inventors: Ying Che, Kaijing He, Jinhua Liang, Maojie Liang, Haixiong Chen
  • Method for preparing sea urchin-shaped zinc oxide nanowire
    Patent number: 11685665
    Abstract: According to an embodiment, a method for preparing a sea urchin-shaped zinc oxide (ZnO) nanowire comprises preparing a mixture of a ZnO nano-powder and a graphite powder and irradiating the mixture, in a container, with a microwave.
    Type: Grant
    Filed: August 6, 2021
    Date of Patent: June 27, 2023
    Inventors: Kyu Hyoung Lee, Changhyun Jin, Myung Sik Choi
  • Catalytic decomposition of hydrocarbons for the production of hydrogen and carbon
    Patent number: 11685651
    Abstract: A new process for the decomposition of hydrocarbon feed stream(s) that achieves the conversion of a hydrocarbon feed stream to hydrogen and filamentous carbon, with minimal resulting production of carbon oxides is described herein. In this invention it is proposed to achieve the hydrocarbon conversion by the use of dual fluidized bed reaction zones, fluidly connected, for (i). hydrocarbon reaction (the reactor) and (ii). catalyst regeneration and heating (the regenerator) and to use a transition metal supported catalyst to achieve high hydrocarbon conversion and to produce high quality filamentous carbon.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: June 27, 2023
    Inventor: Mark Kevin Robertson
  • Quarternary ammonium halides for treating halogen contamination
    Patent number: 11679293
    Abstract: The invention relates to a method for treating emergency spill or leak of halogen which is bromine or chlorine, comprising contacting an aqueous solution of quaternary ammonium halide with the halogen.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: June 20, 2023
    Assignee: BROMINE COMPOUNDS LTD.
    Inventors: Igor Kompaniets, Or Press Frimet, Ofer Cohen, Ran Elazari
  • Method and system for pre-purification of a feed gas stream
    Patent number: 11666861
    Abstract: A system and method of pre-purification of a feed gas stream is provided that is particularly suitable for pre-purification of a feed air stream in cryogenic air separation unit. The disclosed pre-purification systems and methods are configured to remove substantially all of the hydrogen, carbon monoxide, water, and carbon dioxide impurities from a feed air stream and is particularly suitable for use in a high purity or ultra-high purity nitrogen plant. The pre-purification systems and methods preferably employ two or more separate layers of hopcalite catalyst with the successive layers of the hopcalite separated by a zeolite adsorbent layer that removes water and carbon dioxide produced in the hopcalite layers.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: June 6, 2023
    Inventors: Ralph J. Mancini, Cem E. Celik, Matthias Grahl, Arthur C. Selover, Sesha Hari Vemuri, Helko Schneider
  • Catalyst arrangement deciding method for flue gas denitrizer, maintenance method for flue gas denitrizer, flue gas denitrizer, boiler, and power generation plant
    Patent number: 11660570
    Abstract: A catalyst arrangement deciding method for a flue gas denitrizer including a catalyst layer disposed in an exhaust gas passage includes: a step of investigating a location dependence of a degradation state of a catalyst in the catalyst layer after a lapse of a period of operation; and a step of deciding a first region of the catalyst layer in which a first catalyst is used and a second region of the catalyst layer in which a second catalyst different from the first catalyst is used, on the basis of the location dependence.
    Type: Grant
    Filed: January 31, 2022
    Date of Patent: May 30, 2023
    Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Tsuyoshi Hirai, Tsuyoshi Yamaguchi
  • Integrated membrane and steam reformer for hydrogen production
    Patent number: 11661341
    Abstract: This invention integrates a membrane with a steam reformer such that a membrane is placed between a raw biogas feed, and a steam reformer to supply a retentate of purified methane feed to the steam reformer and the permeate as fuel to the steam reformer,
    Type: Grant
    Filed: February 11, 2022
    Date of Patent: May 30, 2023
    Assignee: Archaea Energy, Inc.
    Inventor: Michael J. Mitariten
  • System and method for generating hydrogen through ammonia adsorption
    Patent number: 11655147
    Abstract: A system for generating hydrogen includes an ammonia decomposition bed configured to introduce an ammonia gas, decompose the ammonia gas into a high-pressure first mixed gas including nitrogen and hydrogen, and discharge the high-pressure first mixed gas; an ammonia adsorption bed supplied with the high-pressure first mixed gas from the ammonia decomposition bed, and configured to adsorb ammonia of the first mixed gas, and discharge a high-pressure second mixed gas including nitrogen and hydrogen; and a nitrogen adsorption bed directly supplied with the high-pressure second mixed gas from the ammonia adsorption bed, and configured to adsorb the nitrogen, and discharge the hydrogen.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: May 23, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Byeong Soo Shin, Kyung Moon Lee, Young Jin Cho, Hoon Mo Park, Dong Hoon Nam
  • Sulfur recovery by solidifying sulfur on reactor catalyst
    Patent number: 11655149
    Abstract: A system and method including a sulfur recovery system (SRU) having a Claus system, reacting hydrogen sulfide and oxygen in a furnace to give sulfur dioxide, performing a Claus reaction in the furnace to give elemental sulfur, performing the Claus reaction in a Claus reactor to give elemental sulfur at a temperature greater than a dew point of the elemental sulfur, performing the Claus reaction in a Claus cycling reactor to give elemental sulfur at a temperature less than a solidification temperature of the elemental sulfur, depositing the elemental sulfur as solid elemental sulfur on catalyst in the Claus cycling reactor, and regenerating (heating) the Claus cycling reactor thereby forming elemental sulfur vapor from the solid elemental sulfur.
    Type: Grant
    Filed: November 2, 2021
    Date of Patent: May 23, 2023
    Assignee: Saudi Arabian Oil Company
    Inventor: John O'Connell
  • Method and apparatus for manufacturing core-shell catalyst
    Patent number: 11658307
    Abstract: The present disclosure relates to a method and an apparatus for manufacturing a core-shell catalyst, and more particularly, to a method and an apparatus for manufacturing a core-shell catalyst, in which a particle in the form of a core-shell in which the metal nanoparticle is coated with platinum is manufactured by substituting copper and platinum through a method of manufacturing a metal nanoparticle by emitting a laser beam to a metal ingot, and providing a particular electric potential value, and as a result, it is possible to continuously produce nanoscale uniform core-shell catalysts in large quantities.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: May 23, 2023
    Assignee: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Gu-Gon Park, Sun-Mi Hwang, Sung-Dae Yim, Chang-Soo Kim, Won-Yong Lee, Tae-Hyun Yang, Seok-Hee Park, Minjin Kim, Young-Jun Sohn, Byungchan Bae, Seung-Gon Kim, Dongwon Shin
  • Method and installation for removing a gas from a flow of a gas mixture
    Patent number: 11654394
    Abstract: A method and installation for removing a gas from a flow of a gas mixture. A first liquid (82) is introduced in the flow (106) for evaporative cooling and saturation of the gas mixture. Small droplets of a second liquid (84) are provided which are capable of adsorbing and dissolving said gas and of a size small enough not to be sedimented by gravitation and big enough to be centrifugally separated. The small droplets are sprayed into the flow for adsorbing and dissolving said gas into the droplets, and the small droplets are centrifugally separated from the flow.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: May 23, 2023
    Assignee: ARKALUMEN INC.
    Inventors: Claes Inge, Peter Franzén, Carl Petrus Häggmark
  • Layered TWC
    Patent number: 11648535
    Abstract: The present invention relates to a three-way catalyst (TWC) for treatment of exhaust gases from internal combustion engines operated with a predominantly stoichiometric air/fuel ratio, so called spark ignited engines.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: May 16, 2023
    Assignee: UMICORE AG & CO. KG
    Inventors: Masashi Nakashima, John G. Nunan, Ryan J. Andersen
  • Method of reducing carbon dioxide and air pollutants
    Patent number: 11642624
    Abstract: The present invention relates to a method of reducing carbon dioxide and air pollutants, and more particularly to a method of simultaneously reducing emissions of carbon dioxide and air pollutants, in which an off-gas containing carbon dioxide, SOx, and NOx is passed through a sulfur-oxidizing microorganism reactor, thereby converting carbon dioxide present in the off-gas into biomass, SOx into sulfate ions, and NOx into amino-N.
    Type: Grant
    Filed: January 20, 2022
    Date of Patent: May 9, 2023
    Assignee: SK Innovation Co., Ltd.
    Inventors: Yeon Hwa La, Jae Yang Song, Tae Young Lee, Jae Heum Jung, Tae Wan Kim
  • Method for scrubbing exhaust gas from CO and/or SO
    Patent number: 11642625
    Abstract: A method of exhaust gas scrubbing includes providing recycled concrete fines as a waste material rich in carbonatable Ca and/or Mg phases and with d90?1000 ?m and a Rosin-Rammler slope n from 0.6 to 1.4 , injecting the waste material into an exhaust gas stream containing CO2 and/or SOx for reaction with CO2 and/or SOx at a relative humidity of 50 to 100 Vol.-% and a temperature from 40 to 130° C. in an amount of dry waste material ranging from 5 to 30 kg/m3, withdrawing a partly carbonated and/or sulphurized waste material and purified exhaust gas, and recycling a part of the partly carbonated and sulphurized waste material while the remainder is discharged, as well as use of a waste material slurry for exhaust gas cleaning of CO2 and/or SOx.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: May 9, 2023
    Assignee: HConnect 2 GmbH
    Inventors: Jan Skocek, Maciej Zajac, Mohsen Ben Haha, Stefan Federhen
  • Nitrogen oxide absorption slurry and a preparation and use method thereof
    Patent number: 11642626
    Abstract: A nitrogen oxide absorption slurry and its preparation and use method for the removal of nitric oxide in gas streams, belonging to the technical field of air pollution control and related environmental protection, is characterized in that the absorption slurry contains one or more compounds of anhydrous ferric chloride, ferric chloride monohydrate, ferric chloride dihydrate and the complex of ferric chloride and chloride ions. The absorption slurry reacts with the nitric oxide in gas stream at a certain temperature, so that the nitric oxide in the gas stream is absorbed by the slurry, thereby achieving the purpose of gas purification. And the absorbent can be recycled after regeneration.
    Type: Grant
    Filed: March 8, 2022
    Date of Patent: May 9, 2023
    Inventor: Liwei Huang
  • Enhanced tail gas treatment of sulfur recovery unit with steam swept membranes
    Patent number: 11638898
    Abstract: This invention relates to a system and method for improving sulfur recovery from a Claus unit. More specifically, this invention provides a steam swept membrane tail gas treatment system and method for treating acid gas streams and minimizing sulfur dioxide emissions therefrom.
    Type: Grant
    Filed: March 25, 2022
    Date of Patent: May 2, 2023
    Assignee: Saudi Arabian Oil Company
    Inventors: Feras Hamad, Sebastien A. Duval, Milind M. Vaidya, Ahmad A. Bahamdan, Faisal D. Al-Otaibi