Patents Examined by Jafar F. Parsa
  • Patent number: 11261144
    Abstract: The invention relates to a use of a fluorination gas, wherein the elemental fluorine (F2) is present in a high concentration, for example, in a concentration of elemental fluorine (F2), especially of equal to much higher than 15% or even 20% by volume (i.e., at least 15% or even 20% by volume), and to a process for the manufacture of a fluorinated benzene by direct fluorination employing a fluorination gas, wherein the elemental fluorine (F2) is present in a high concentration. The process of the invention is directed to the manufacture of a fluorinated benzene by direct fluorination. Especially the invention is of interest in the preparation of fluorinated benzene, final products and as well intermediates, for usage in agro-, pharma-, electronics-, catalyst, solvent and other functional chemical applications. The fluorination process of the invention may be performed batch-wise or in a continuous manner. If the process of the invention is performed batch-wise, a column (tower) reactor may be used.
    Type: Grant
    Filed: June 20, 2020
    Date of Patent: March 1, 2022
    Inventors: Changyue Zhou, Hongjun Du, Wenting Wu
  • Patent number: 11261137
    Abstract: A process for the methanation of carbon monoxide and/or carbon dioxide in a feed stream containing carbon monoxide and/or carbon dioxide is disclosed. This is achieved by a process for the methanation of carbon monoxide and/or carbon dioxide in a feed stream containing carbon monoxide and/or carbon dioxide, hydrogen and more than 1 ppb of sulfur, using a catalyst comprising aluminum oxide, an Ni active composition and Mn. It has surprisingly The Mn-containing Ni catalyst has a high sulfur resistance and also a high sulfur capacity.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: March 1, 2022
    Assignee: CLARIANT INTERNATIONAL LTD
    Inventor: Andreas Geisbauer
  • Patent number: 11247952
    Abstract: A process for producing 2,3,3,3-tetrafluoropropene comprises the steps: i) in a first adiabatic reactor comprising a fixed bed composed of an inlet and an outlet, bringing 2-chloro-3,3,3-trifluoropropene into contact with hydrofluoric acid in the gas phase in the presence of a catalyst to produce a stream A comprising 2,3,3,3-tetrafluoropropene, HF and unreacted 2-chloro-3,3,3-trifluoropropene; and ii) in a second adiabatic reactor comprising a fixed bed composed of an inlet and an outlet, bringing hydrofluoric acid into contact in the gas phase, optionally in the presence of a catalyst, with at least one chlorinated compound to produce a stream B comprising 2-chloro-3,3,3-trifluoropropene. The stream A obtained in step i) feeds said second reactor. The inlet temperature 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 in question is less than 20° C.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: February 15, 2022
    Assignee: Arkema France
    Inventors: Bertrand Collier, Dominique Deur-Bert, Anne Pigamo, Audrey Riehl, Laurent Wendlinger
  • Patent number: 11247957
    Abstract: Proposed is a process for producing methanol from synthesis gas by means of multi-stage, for example 2-stage, heterogeneously catalyzed methanol synthesis, wherein the methanol product formed in every synthesis stage is removed by condensation and the remaining residual gas is applied to the downstream synthesis stage or after removal of a purge stream recycled to the first synthesis stage as a recycle stream. According to the invention a substream is removed from the synthesis gas fresh gas and introduced into the second methanol synthesis reactor as a bypass stream.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: February 15, 2022
    Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
    Inventors: Tobis Oelmann, Veronika Gronemann, Heiko Hofmann, Timm Schuhmann
  • Patent number: 11247951
    Abstract: The present invention aims to provide an efficient method for obtaining a desired isomer of HFO-1132 from a composition comprising trans-1,2-difluoroethylene (HFO-1132(E)) and cis-1,2-difluoroethylene (HFO-1132(Z)). The present invention provides, as a means for solving the problem, a method for producing HFO-1132(E) and/or HFO-1132(Z), comprising steps (1) to (3): (1) supplying a composition comprising HFO-1132(E) and/or HFO-1132(Z) to a reactor filled with a catalyst to perform an isomerization reaction between the HFO-1132(E) and the HFO-1132(Z); (2) separating the reaction product obtained in step (1) into a first stream comprising the HFO-1132(E) as a main component, and a second stream comprising the HFO-1132(Z) as a main component; and (3) recycling the first stream or the second stream obtained in step (2) to the reactor, to subject the first stream or the second stream to the isomerization reaction.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: February 15, 2022
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Takashi Usui, Tsubasa Nakaue, Yuzo Komatsu, Kazuhiro Takahashi, Takehiro Chaki, Megumi Kushida
  • Patent number: 11247953
    Abstract: The present invention provides an improved process for removing heat from an exothermic reaction. In particular, the present invention provides a process wherein heat can be removed from multiple reaction trains using a common coolant system.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: February 15, 2022
    Assignee: Velocys Technologies Limited
    Inventors: Ivan Phillip Greager, Stephen Claude LeViness, Roger Allen Harris, Andre Peter Steynberg, Jasmeer Jaichland Ramlal, Dennis Parker, John Dolan
  • Patent number: 11247954
    Abstract: Proposed is a process for producing methanol from synthesis gas by means of multi-stage, for example 2-stage, heterogeneously catalyzed methanol synthesis, wherein the product stream of a synthesis stage is applied to the downstream synthesis stage as a feed stream or after removal of a purge stream recycled to the first synthesis stage as a recycle stream. According to the invention a substream is removed from the synthesis gas fresh gas and introduced into the second methanol synthesis reactor as a bypass stream.
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: February 15, 2022
    Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
    Inventors: Tobias Oelmann, Veronika Gronemann, Heiko Hofmann, Timm Schuhmann
  • Patent number: 11247959
    Abstract: Provided is a method for directly preparing dimethyl ether by synthesis gas, the method comprises: the synthesis gas is passed through a reaction zone carrying a catalyst, and reacted under the reaction conditions sufficient to convert at least a portion of the raw materials to obtain the reaction effluent comprising dimethyl ether; and the dimethyl ether is separated from the reaction effluent, wherein the catalyst is zinc aluminum spinel oxide. In the present invention, only one zinc aluminum spinel oxide catalyst is used, which can make the synthesis gas to highly selectively form dimethyl ether, the catalyst has good stability and can be regenerated. The method of the present invention realizes the production of dimethyl ether in one step by the synthesis gas, and reduces the large energy consumption problem caused by step-by-step production.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: February 15, 2022
    Assignee: Dalian Institute of Chemical Physics, Chinese Academy of Sciences
    Inventors: Youming Ni, Wenliang Zhu, Zhongmin Liu, Yong Liu, Hongchao Liu, Xiangang Ma, Shiping Liu
  • Patent number: 11236030
    Abstract: The present disclosure provides a method for producing fluoroolefin represented by formula (1): CX1X2?CX3X4, wherein X1, X2, X3, and X4 are the same or different, and represent a hydrogen atom or a fluorine atom, with high selectivity. Specifically, the present disclosure is a method for producing a fluoroolefin represented by formula (1) described above, the method comprising a dehydrofluorination step of bringing a fluorocarbon represented by formula (2): CX1X2FCX3X4H, wherein X1, X2, X3, and X4 are as defined above, into contact with a metal catalyst to perform dehydrofluorination, the dehydrofluorination step being performed in the gas phase in the presence of water, the concentration of the water being less than 500 ppm relative to the fluorocarbon represented by formula (2).
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: February 1, 2022
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Takashi Usui, Tsubasa Nakaue, Takehiro Chaki, Yuzo Komatsu
  • Patent number: 11225445
    Abstract: A process for the production of trans-1-chloro-3,3,3-trifluoropropene comprises the steps of: i) providing a reactor comprising a cover, a bottom, sidewalls connecting said bottom and said cover, at least one reagent supply line and at least one line for drawing off the products formed, said reactor further containing a liquid phase A; ii) providing a stream B comprising hydrofluoric acid heated to a temperature T1 of from 100° C. to 170° C. and providing a stream C comprising 1,1,3,3-tetrachloropropene and/or 1,3,3,3-tetrachloropropene; stream B and stream C supplying said reactor via said at least one reagent supply line; iii) reacting, in liquid phase A, stream B with stream C to form a stream D comprising trans-1-chloro-3,3,3-trifluoropropene. Step iii) is carried out at a temperature T2 of between 50° C. and 110° C., and the temperature difference between temperature T1 and temperature T2 is greater than 30° C.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: January 18, 2022
    Assignee: Arkema France
    Inventors: Bertrand Collier, Anne Pigamo, Nicolas Brusadelli
  • Patent number: 11225446
    Abstract: According to a method for producing a perfluoroalkadiene compound represented by general formula (1): CF2?CF—(CF2)n-4—CF?CF2 (1), wherein n is an integer of 4 or more, the method comprising a reaction step of adding a nitrogen-containing compound to a solution of a compound represented by general formula (2): X1CF2—CFX2—(CF2)n-4—CF2—CF2X1 (2), wherein n is the same as above, X1 is the same or different and is a halogen atom other than fluorine, and X2 is a halogen atom, the perfluoroalkadiene compound can be obtained at a high yield.
    Type: Grant
    Filed: April 8, 2021
    Date of Patent: January 18, 2022
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Yuusuke Etou, Atsushi Maruo, Katsuya Nakai, Kazuhiro Takahashi
  • Patent number: 11225609
    Abstract: Systems and methods are provided for co-processing of plastic waste with biomass to generate gas phase product streams with improved properties. The systems and methods can include having a high temperature swing adsorption process integrated with a pyrolysis process, gasification process, or other thermal conversion process, so that CO2 can be removed from at least a portion of the effluent. This can facilitate capture of CO2 when using pyrolysis, gasification, or other thermal conversion to generate a hydrogen-containing stream. Additionally, the integrated system and/or method can allow for production of multiple product streams having desirable ratios of hydrogen to carbon oxides.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: January 18, 2022
    Assignee: ExxonMobil Research and Engineering Company
    Inventor: Narasimhan Sundaram
  • Patent number: 11220471
    Abstract: Provided is a method for producing tetrafluoromethane, and the method is unlikely to damage a reaction apparatus and can produce tetrafluoromethane safely, inexpensively, and stably. To a raw material liquid (1) containing a reaction inducer and a fluorinated hydrocarbon represented by chemical formula CpHqClrFs (in the chemical formula, p is an integer of 3 or more and 18 or less, q is an integer of 0 or more and 3 or less, r is an integer of 0 or more and 9 or less, and s is an integer of 5 or more and 30 or less) and having no carbon-carbon unsaturated bond, fluorine gas is introduced to give tetrafluoromethane. The reaction inducer is a hydrocarbon polymer solid at normal temperature and pressure and is reacted with fluorine gas to induce a reaction of forming tetrafluoromethane from the fluorinated hydrocarbon and the fluorine gas.
    Type: Grant
    Filed: December 25, 2018
    Date of Patent: January 11, 2022
    Assignee: SHOWA DENKO K.K.
    Inventors: Yohsuke Fukuchi, Tomokazu Sugawara, Shinya Oguro, Hiroshi Kobayashi
  • Patent number: 11220429
    Abstract: Systems and methods are provided for improving thermal management and/or efficiency of reaction systems including a reverse flow reactor for performance of at least one endothermic reaction and at least one supplemental exothermic reaction. The supplemental exothermic reaction can be performed in the recuperation zone of the reverse flow reactor system. By integrating the supplemental exothermic reaction into the recuperation zone, the heat generated from the supplemental exothermic reaction can be absorbed by heat transfer surfaces in the recuperation zone. The adsorbed heat can then be used to heat at least one of the fuel and the oxidant for the combustion reaction performed during regeneration, thus reducing the amount of combustion that is needed to achieve a desired temperature profile at the end of the regeneration step.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: January 11, 2022
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Anastasios I. Skoulidas, Everett J. O'Neal, Joseph E. Gatt, Anjaneya S. Kovvali
  • Patent number: 11220473
    Abstract: An integrated process for converting light hydrocarbon gases into products. Pre-packaged equipment such as a gas turbine and process compressors may be used to efficiently integrate the process. The gas turbine may provide all or a portion of the oxygen required in the process as compressed air. The turbine may be configured with a gradual oxidizer that can oxidize the process tail gas and drive the turbine, providing power for the process.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: January 11, 2022
    Assignee: Emerging Fuels Technology, Inc.
    Inventor: Kenneth L. Agee
  • Patent number: 11214488
    Abstract: A synthesis gas production process from CO2 and H2O with a co-electrolysis, wherein the CO2 and CH4 content of the produced gas is reduced on the cathode side.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: January 4, 2022
    Assignee: SunFire GmbH
    Inventor: Dietmar Rueger
  • Patent number: 11208582
    Abstract: The present disclosure provides azeotrope or azeotrope-like compositions including trifluoroiodomethane (CF3I) and trifluoroacetyl chloride (CF3COCl), and a method of forming an azeotrope or azeotrope-like composition comprising the step of combining trifluoroacetyl chloride (CF3COCl) and trifluoroiodomethane (CF3I) to form an azeotrope or azeotrope-like composition.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: December 28, 2021
    Assignee: Honeywell International Inc.
    Inventors: Hang T. Pham, Ryan J. Hulse, Rajiv Ratna Singh, Haridasan K. Nair
  • Patent number: 11208363
    Abstract: A process for preparing C2 to C5 paraffins includes introducing a feed stream comprising hydrogen gas and a carbon-containing gas into a reaction zone of a reactor, and converting the feed stream into a product stream comprising C2 to C5 paraffins in the reaction zone in the presence of a hybrid catalyst. The hybrid catalyst includes a metal oxide catalyst component and a microporous catalyst component. The metal oxide catalyst component satisfies: an atomic ratio of Cu/Zn from 0.01 to 3.00; an atomic ratio of Cr/Zn from 0.01 to 1.50; and percentage of (Al+Cr) from greater than 0.0 at % to 50.0 at % based on a total amount of metal in the metal oxide catalyst component.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: December 28, 2021
    Assignee: Dow Global Technologies LLC
    Inventors: Davy L. S. Nieskens, Glenn Pollefeyt, Andrzej Malek, Edward M. Calverley, Peter E. Groenendijk, Aysegul Ciftci Sandikci
  • Patent number: 11203717
    Abstract: A process for converting a mixture of hydrogen and carbon monoxide gases to a composition comprising alcohols and liquid hydrocarbons by means of a Fischer-Tropsch synthesis reaction, said process comprising contacting a mixture of hydrogen and carbon monoxide gases, preferably in the form of synthesis gas mixture, with a supported Co—Mn Fischer-Tropsch synthesis catalyst, wherein: the support material of the supported Co—Mn Fischer-Tropsch synthesis catalyst comprises a material selected from titania, zinc oxide, zirconia, and ceria; the supported synthesis catalyst comprises at least 2.5 wt % of manganese, on an elemental basis, based on the total weight of the supported synthesis catalyst; the weight ratio of manganese to cobalt, on an elemental basis, is 0.2 or greater; the molar ratio of hydrogen to carbon monoxide is at least 1; and, the Fischer-Tropsch synthesis reaction is conducted at a pressure in the range of from 1.0 to 10.0 MPa absolute.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: December 21, 2021
    Assignee: BP P.L.C.
    Inventor: Alexander James Paterson
  • Patent number: 11198662
    Abstract: The present disclosure provides a method for producing fluoroolefin represented by formula (1): CX1X2?CX3X4, wherein X1, X2, X3, and X4 are the same or different, and represent a hydrogen atom or a fluorine atom, with high selectivity. Specifically, the present disclosure is a method for producing fluoroolefin represented by formula (1), wherein the method includes the step of performing dehydrofluorination by bringing a fluorocarbon represented by formula (2): CX1X2FCX3X4H, wherein X1, X2, X3, and X4 are as defined above, into contact with a base, and the dehydrofluorination step is performed in the liquid phase at a temperature of ?70° C. or higher to less than 120° C.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: December 14, 2021
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Tsubasa Nakaue, Takashi Usui, Takehiro Chaki