Patents Examined by Jafar F. Parsa
  • Patent number: 11192837
    Abstract: A process for producing 2,3,3,3-tetrafluoropropene comprises i) in a first adiabatic reactor comprising a fixed bed composed of an inlet and an outlet, bringing hydrofluoric acid into contact, in the gas phase with at least one chlorinated compound in order to produce a stream A comprising 2-chloro-3,3,3-trifluoropropene, ii) in a second adiabatic reactor comprising a fixed bed composed of an inlet and an outlet, bringing the stream A into contact, in the gas phase in the presence of a catalyst, with hydrofluoric acid, to produce a stream B comprising 2,3,3,3-tetrafluoropropene. The temperature at the inlet of the fixed bed of one of said first or second reactors is between 300° C. and 400° C. The longitudinal temperature difference between the inlet and the outlet of the fixed bed of the reactor is less than 20° C.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: December 7, 2021
    Assignee: Arkema France
    Inventors: Bertrand Collier, Dominique Deur-Bert, Anne Pigamo, Audrey Riehl, Laurent Wendlinger
  • Patent number: 11192839
    Abstract: The present invention relates to a process for producing 2-chloro-3,3,3-trifluoropropene, comprising the steps: i) providing a stream A comprising at least one chlorinated compound selected from the group consisting of 2,3-dichloro-1,1,1-trifluoropropane, 1,1,1,2,3-pentachloropropane, 1,1,2,3-tetrachloropropene and 2,3,3,3-tetrachloropropene; and ii) in an adiabatic reactor comprising a fixed bed composed of an inlet and an outlet, bringing said stream A into contact, in the presence or absence of a catalyst, with HF in order to produce a stream B comprising 2-chloro-3,3,3-trifluoropropene, characterized in that the temperature at the inlet of the fixed bed of said adiabatic reactor is between 300° C. and 400° C. and the longitudinal temperature difference between the inlet of the fixed bed and the outlet of the fixed bed of said reactor is less than 20° C.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: December 7, 2021
    Assignee: Arkema France
    Inventors: Bertrand Collier, Dominique Deur-Bert, Anne Pigamo, Audrey Riehl, Laurent Wendlinger
  • Patent number: 11192843
    Abstract: A method for producing methanol is disclosed. The method includes supplying a high oxygen content oxidant to combust hydrocarbons, in particular methane, and then using the resulting hot gases to heat natural gas so as to convert the natural gas to synthesis gas. The synthesis gas is used to produce methanol in a methanol synthesis reactor. At least some of the carbon dioxide from the hot gases is fed to the methanol synthesis reactor to make methanol.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: December 7, 2021
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Srikant Vasant Badgandi, Balasubramaniyan Sethuraman, Vinod Sankaran Nair
  • Patent number: 11192841
    Abstract: The present invention provides improved processes for preparing halogenated alkanes. The processes comprise reacting an alkene, a halogenated alkene, or combinations thereof and a halogenated methane with at least one chlorine atom, while using an absorption device.
    Type: Grant
    Filed: April 2, 2019
    Date of Patent: December 7, 2021
    Assignee: Blue Cube IP LLC
    Inventors: John D. Myers, Max Tirtowidjojo
  • Patent number: 11186531
    Abstract: The present invention is to provide a method of producing an alkene that can further enhance the yield of an alkene, a reaction product, the method including bringing a gaseous halogenated alkane into contact with an alkaline aqueous solution in the presence of a phase-transfer catalyst. The objective above is achieved by a method of producing an alkene comprising bringing in the presence of a phase-transfer catalyst a liquid phase containing an alkaline aqueous solution and a water-insoluble solvent into contact with a gas phase containing a halogenated alkane that is soluble in the water-insoluble solvent.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: November 30, 2021
    Assignee: KUREHA CORPORATION
    Inventors: Kensuke Suzuki, Hiraku Tohmiya
  • Patent number: 11180433
    Abstract: The invention relates to a process and a plant for producing methanol from an input gas including carbon monoxide and hydrogen using a pre-reactor stage and a main reactor stage. Input gas produced at and under elevated pressure is initially introduced into a pre-reactor stage for catalytic conversion into a first methanol-containing product stream. After separation of methanol from the first methanol-containing product stream and discharging from the pre-reactor stage a remaining gas stream is introduced into a main reactor stage as a residual gas stream after compression to reaction pressure for catalytic conversion into a second methanol-containing product stream, After separation from the second methanol-containing product stream methanol is discharged from the main reactor stage. Using an input gas having a carbon monoxide content of 25% to 36% by volume results in large savings in respect of the compressor output required for the production process.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: November 23, 2021
    Assignee: L'Air Liquide, Société Anonyme pour I'Etude et I'Exploitation des Procédés Georges Claude
    Inventors: Frank Castillo-Welter, Stephane Haag, Timm Schuhmann, Robert Frind
  • Patent number: 11180371
    Abstract: A process to extract carbon from hydrophobic waste comprises: combining the hydrophobic waste with an oxide of an active metal to form a storable, moisture-resistant feedstock for high-temperature processing; heating the feedstock in a furnace to yield an effluent gas entraining a carbide of the active metal; cooling the effluent gas entraining the carbide of the active metal; introducing nitrogen into the cooled effluent gas entraining the carbide of the active metal, to yield a cyanamide of the active metal and elemental carbon; and acidically hydrolyzing the cyanamide of the active metal to yield a cyanamide compound and a salt of the active metal.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: November 23, 2021
    Inventors: J. Dustin Hultine, Robert Kurt Graupner
  • Patent number: 11179712
    Abstract: The present invention relates to a method for preparing a sulfated metal oxide catalyst for chlorination, and a method for producing a reaction product containing methyl chloride (CH3Cl) by using the sulfated metal oxide catalyst. A sulfated zirconia catalyst and a sulfated tin oxide catalyst are disclosed as the sulfated metal oxide catalyst for chlorination.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: November 23, 2021
    Assignee: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
    Inventors: Ho Jeong Chae, Young Min Kim, Jip Kim, Hyung Ju Kim
  • Patent number: 11179693
    Abstract: Method and apparatus for compact and easily maintainable waste reformation. Some embodiments include a rotary oven reformer adapted and configured to provide synthesis gas from organic waste. Some embodiments include a rotary oven with simplified operation both as to reformation of the waste, usage of the synthesized gas and other products, and easy removal of the finished waste products, preferably in a unit of compact size for use in austere settings. Yet other embodiments include Fischer-Tropsch reactors of synthesized gas. Some of these reactors include heat exchanging assemblies that provide self-cleaning effects, efficient utilization of waste heat, and ease of cleaning.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: November 23, 2021
    Assignee: Raven SR, Inc.
    Inventors: Terry R. Galloway, Joseph Oscar Waidl
  • Patent number: 11179703
    Abstract: A catalyst for an oxychlorination process of hydrocarbons, a preparation method thereof, and a method for preparing an oxychlorination compound of hydrocarbons using the same.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: November 23, 2021
    Assignees: LG CHEM. LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Jungup Bang, Do Heui Kim, Gyo Hyun Hwang, Jongwook Jung, Yongju Bang, Youngseok Ryou, Jeongeun Kim
  • Patent number: 11180368
    Abstract: A method of co-producing a nitrogen containing stream and a methanol stream, including producing at least an oxygen enriched stream and a nitrogen enriched stream in an air separation unit, introducing at least a portion of the oxygen enriched stream into an oxygen-based reformer, thereby producing a first syngas stream, introducing at least a portion of the first syngas stream into a methanol synthesis reactor, thereby producing at least a hydrogen containing stream and a methanol containing stream, introducing at least a portion of the methanol containing stream into a methanol distillation system, thereby producing a methanol product stream, introducing at least a portion of the nitrogen enriched stream, at least a portion of the first enriched hydrogen containing stream, and at least a portion of the second enriched hydrogen containing stream into an ammonia synthesis reactor, thereby producing an ammonia product stream.
    Type: Grant
    Filed: December 9, 2019
    Date of Patent: November 23, 2021
    Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procëdës Georges Claude
    Inventors: Joseph T. Stroffolino, IV, Alexander Roesch
  • Patent number: 11173483
    Abstract: A catalyst is regenerated by an inventive process using a heat exchange fluid such as superheated steam to remove heat during the process relying on efficient heat transfer (e.g., enabled by the microchannel reactor construction) in comparison with prior art heat exchange relying on a phase change, e.g. between water and (partial or complete vaporization) steam, allows simplification of the protocols to enable transition at higher temperatures between steps which translates in reduced duration of the regeneration process and avoids potential water hammering risks.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: November 16, 2021
    Assignee: VELOCYS TECHNOLOGIES LIMITED
    Inventors: Soumitra R. Deshmukh, Ivan Philip Greager, Roger Allen Harris, Heinz Robota
  • Patent number: 11174215
    Abstract: There is described a method of reducing polymer tar build-up in the production of methyl methacrylate and/or methacrylic acid by the acetone cyanohydrin process. In the method a stabiliser is contacted with the amide stage reaction medium. The stabiliser includes a hydrocarbon moiety capable of donating a labile hydrogen atom to a methacrylamide derivative capable of reaction with said labile hydrogen atom under the conditions in the said medium. The method herein is especially useful for the continuous production of methyl methacrylate and/or methacrylic acid.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: November 16, 2021
    Assignee: MITSUBISHI CHEMICAL UK LIMITED
    Inventor: Neil Tindale
  • Patent number: 11168011
    Abstract: The invention provides a process for treating waste water from an industrial process for producing propylene oxide, which process comprises subjecting the waste water to a catalytic wet oxidation treatment in the presence of a catalyst comprising metal nanoparticles-doped porous carbon beads.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: November 9, 2021
    Assignee: SHELL OIL COMPANY
    Inventors: Arian Van Mourik, Kaushik Basak, Nishith Verma
  • Patent number: 11168045
    Abstract: Integrated process comprising: synthesis of methanol from a methanol synthesis gas (12); synthesis of ammonia from an ammonia make-up gas (25), and synthesis of carbon monoxide from a methane-containing stream, wherein: the synthesis of methanol provides a liquid stream of methanol (13) and a gaseous stream (14) of unreacted synthesis gas; a portion (14a) of said gaseous stream is separated as purge gas; said purge gas is subjected to a hydrogen recovery step, providing a hydrogen-containing stream (19) which is used as a hydrogen source for making the ammonia make-up gas, and a tail gas (20) which is used as a methane source for the synthesis of carbon monoxide by oxidation of a methane-containing stream.
    Type: Grant
    Filed: April 10, 2019
    Date of Patent: November 9, 2021
    Assignee: Casale SA
    Inventor: Pietro Moreo
  • Patent number: 11168044
    Abstract: The present invention relates to a process for purifying 1,1,1,2,3-pentafluoropropane, comprising the steps of: i) providing a composition A1 comprising 1,1,1,2,3-pentafluoropropane and 1,1,1,3-tetrafluoropropane; ii) purifying, preferably distilling, said composition A1 under conditions that are sufficient to form at least two streams including a first stream comprising 1,1,1,2,3-pentafluoropropane and a second stream comprising 1,1,1,3-tetrafluoropropane. The present invention also relates to a process for producing 2,3,3,3-tetrafluoropropene and a composition comprising 2,3,3,3-tetrafluoropropene.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: November 9, 2021
    Assignee: Arkema France
    Inventors: Pierre-Marie Sedat, Collier Bertrand
  • Patent number: 11155462
    Abstract: Methods and systems for producing hydrogen substantially without greenhouse gas emissions, the method including producing a product gas comprising hydrogen and carbon dioxide from a hydrocarbon fuel source; separating hydrogen from the product gas to create a hydrogen product stream and a byproduct stream; injecting the byproduct stream into a reservoir containing mafic rock; and allowing components of the byproduct stream to react in situ with components of the mafic rock to precipitate and store components of the byproduct stream in the reservoir.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: October 26, 2021
    Assignee: SAUDI ARABIAN OIL COMPANY
    Inventors: Serguey Viktorov Arkadakskiy, Humoud W. Al-Utaibi, Noushad Kunnummal, Zeyad Tareq Ahmed, Faisal Salman Al-Jar, Christopher Ellis Stapp
  • Patent number: 11154844
    Abstract: A cobalt carbide-based catalyst for direct production of olefin from synthesis gas, a preparation method therefor and application thereof are disclosed. The method for preparing the catalyst comprises the following steps: 1) mixing a cobalt source with water, or mixing a cobalt source, an electron promoter and water to obtain a first solution; and mixing a precipitant with water to obtain a second solution; 2) adding the first solution and the second solution to water, or water and a structure promoter for precipitation, crystallizing, separating, drying and calcination; and 3) reducing a solid obtained in Step 2) in a reducing atmosphere, and then carbonizing in a carbonizing atmosphere. The prepared catalyst has high activity and high selectivity to olefins for direct production of olefins via syngas conversion.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: October 26, 2021
    Assignees: SHANGHAI ADVANCED RESEARCH INSTITUTE, CHINESE ACADEMY OF SCIENCES, SHANXI LUAN ENVIRONMENTAL ENERGY DEVELOPMENT CO., LTD.
    Inventors: Zhengjia Li, Liangshu Zhong, Yuhan Sun, Fei Yu, Yunlei An, Xingzhen Qi, Tiejun Lin, Yaning Xiao, Bin Liu, Dongfei Wang
  • Patent number: 11155506
    Abstract: The present invention provides a process for preparing 1,1,1,2,2-pentafluoropropane (245cb), the process comprising gas phase catalytic dehydrochlorination of a composition comprising 1,1,1-trifluoro-2,3-dichloropropane (243db) to produce an intermediate composition comprising 3,3,3-trifluoro-2-chloro-prop-1-ene (CF3CCl?CH2, 1233xf), hydrogen chloride (HCl) and, optionally, air; and gas phase catalytic fluorination with hydrogen fluoride (HF) of the intermediate composition to produce a reactor product composition comprising 245cb, HF, HCl and air; wherein the process is carried out with a co-feed of air.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: October 26, 2021
    Assignee: Mexichem Fluor S.A. de C.V.
    Inventors: Sheryl Louise Johnson, Stephen Andrew Flaherty, Clive Robert Giddis
  • Patent number: 11136238
    Abstract: The present invention generally relates to an oxygen transport membrane syngas panel whereby the reformer layer of the panel is eliminated, and the primary reforming function is integrated into the manifold as a gas heated reformer with product syngas as the source of heat.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: October 5, 2021
    Assignee: PRAXAIR TECHNOLOGY, INC.
    Inventors: Sean M. Kelly, Ines C. Stuckert