Patents Examined by Jafar F. Parsa
  • Patent number: 11512033
    Abstract: The invention relates to a process and a plant for producing pure methanol, wherein the crude methanol stream discharged from a methanol synthesis unit is decompressed in a decompression vessel, is subsequently at least partially freed of low-boiling by-products in a prerun column and is then supplied to a single- or multi-stage methanol purification apparatus from which a pure methanol product stream is finally discharged. According to the invention the tops product stream from the prerun column is subjected to a scrubbing step with a methanol-selective scrubbing medium, thus at least partially recovering methanol present and sending a methanol-depleted tops product stream to the offgas disposal apparatus.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: November 29, 2022
    Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
    Inventors: Veronika Gronemann, Karin Huder, Chin Han Lim
  • Patent number: 11512032
    Abstract: In a method, device, catalyst and a method for producing a catalyst for the catalytic conversion of a substance mixture containing glycerol to propanol in a fixed-bed reactor, substrates of the catalyst have inorganic materials and/or metal oxides. The substrates have a pore diameter at the surface of between 10 and 25 angstroms, preferably between 12 and 20 angstroms, particularly preferably 15 angstroms.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: November 29, 2022
    Inventor: Paul Schöffl
  • Patent number: 11512257
    Abstract: An H2-rich fuel gas production plant comprising a syngas production unit can be advantageously integrated with an olefins production plant comprising a steam cracker in at least one of the following: (i) fuel gas supply and consumption; (ii) feed supply and consumption; and (iii) steam supply and consumption, to achieve considerable savings in capital and operational costs, enhanced energy efficiency, and reduced CO2 emissions, compared to operating the plants separately.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: November 29, 2022
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: David Spicer, Thomas T. Hirst, James L. Kendall, You Fang, Steven M. Slack
  • Patent number: 11505517
    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: November 2, 2021
    Date of Patent: November 22, 2022
    Assignee: ARKEMA FRANCE
    Inventors: Pierre-Marie Sedat, Collier Bertrand
  • Patent number: 11505749
    Abstract: A method for starting a slurry bubble column reactor that includes a reactor vessel holding a settled or slumped bed of particles and a liquid phase from which the particles have settled includes introducing a flow of a re-suspension liquid into the settled or slumped bed to loosen the settled or slumped bed. The introduction of the re-suspension liquid takes place before the introduction of any gas into the settled or slumped bed, or together with feeding of gas into the settled or slumped bed, provided that, if gas is fed together with the re-suspension liquid into the settled or slumped bed before the settled or slumped bed has been loosened, the gas has a superficial gas velocity in the reactor below 10 cm/s. Once the settled or slumped bed has been loosened by at least the re-suspension liquid, gas is passed at a superficial gas velocity above 10 cm/s through the liquid phase.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: November 22, 2022
    Inventors: Willem Adriaan Booysen, Ruben Oortman
  • Patent number: 11498057
    Abstract: A heterogeneous catalyst comprising a support and gold, wherein: (i) said support comprises titanium, (ii) said catalyst comprises from 0.1 to 5 wt % of gold, (iii) at least 90 wt % of the gold is in the outer 60% of catalyst volume, and (iv) particles of the catalyst have an average diameter from 200 microns to 30 mm; wherein weight percentages are based on weight of the catalyst.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: November 15, 2022
    Assignees: Rohm and Haas Company, Dow Global Technologies LLC
    Inventors: Kirk W. Limbach, Christopher D. Frick, Dmitry A. Krapchetov, Wen-Sheng Lee, Victor J. Sussman, Jeffrey A. Herron
  • Patent number: 11498835
    Abstract: The present invention relates to a revamp method for increasing the front-end capacity of a plant comprising a reforming section, wherein a feed is reformed in at least one reforming step to a reformed stream comprising CH4, CO, CO2, H2 and H2O a shift section wherein the reformed stream is shifted in a shift reaction in at least a high temperature shift step, said method comprising the steps of In the High temperature shift step exchanging an original Fe-based catalyst with a non-Fe-based catalyst Increasing the feed flow to the reforming section, and The HTS step is carried out at a reduced steam/dry-gas ratio (S/DG) compared to an original S/DG in the original HTS step with the original Fe-based catalyst.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: November 15, 2022
    Assignee: HALDOR TOPSØE A/S
    Inventors: Annette E. Krøll Jensen, Christian Henrik Speth, Thomas Rostrup-Nielsen, Niels Christian Schjødt
  • Patent number: 11498886
    Abstract: Embodiments of the present invention relates to two improved catalysts and associated processes that directly converts carbon dioxide and hydrogen to liquid fuels. The catalytic converter is comprised of two catalysts in series that are operated at the same pressures to directly produce synthetic liquid fuels or synthetic natural gas. The carbon conversion efficiency for CO2 to liquid fuels is greater than 45%. The fuel is distilled into a premium diesel fuels (approximately 70 volume %) and naphtha (approximately 30 volume %) which are used directly as “drop-in” fuels without requiring any further processing. Any light hydrocarbons that are present with the carbon dioxide are also converted directly to fuels. This process is directly applicable to the conversion of CO2 collected from ethanol plants, cement plants, power plants, biogas, carbon dioxide/hydrocarbon mixtures from secondary oil recovery, and other carbon dioxide/hydrocarbon streams.
    Type: Grant
    Filed: May 4, 2020
    Date of Patent: November 15, 2022
    Assignee: Infinium Technology, LLC
    Inventors: Robert Schuetzle, Dennis Schuetzle
  • Patent number: 11498891
    Abstract: The present invention relates to a process for making 1,4-butanediol. The process may include reacting a solution comprising 1,4-butynediol with hydrogen in a presence of a catalyst. The catalyst may include cerium.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: November 15, 2022
    Assignee: W.R. Grace & Co.-Conn
    Inventor: Stephen R. Schmidt
  • Patent number: 11492315
    Abstract: There is a process for the production of methanol from gaseous hydrocarbons. The process has the following stages: (a) treating said gaseous hydrocarbons in a desulfurization unit to produce a desulfurized hydrocarbon gas; (b) reacting the desulfurized gas with an oxidizing flow by means of a short contact time partial catalytic oxidation reaction to produce synthesis gas; (c) producing hydrogen by electrolysis of water; (d) mixing and compressing synthesis gas and hydrogen; and (e) sending said compressed mixture to a methanol synthesis unit to produce methanol.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: November 8, 2022
    Assignee: ENI S.P.A.
    Inventors: Luca Eugenio Riccardo Basini, Chiara Busto, Michele Villani
  • Patent number: 11491439
    Abstract: Methods and systems for reducing greenhouse gas emissions, including producing a waste gas stream comprising form greater than 0 vol % to less than 20 vol %, inclusive, carbon dioxide, pre-concentrating the waste gas stream to increase a concentration of carbon dioxide, producing a concentrated byproduct stream comprising more than 40 vol %, dissolving carbon dioxide contained in the concentrated byproduct stream in water, producing a dissolved byproduct stream and an undissolved byproduct stream, injecting the dissolved byproduct stream or a portion thereof into a reservoir containing mafic rock, and allowing components of the dissolved 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: February 19, 2021
    Date of Patent: November 8, 2022
    Inventors: Serguey Viktorov Arkadakskiy, Noushad Kunnummal, Zeyad Tareq Ahmed
  • Patent number: 11485693
    Abstract: The invention provides a start-up method for a process for the preparation of glycols from a starting material comprising one or more saccharides in the presence of hydrogen and a catalyst system comprising one or more retro-aldol catalysts comprising tungsten and one or more catalytic species suitable for hydrogenation in a reactor, said method comprising introducing the one or more retro-aldol catalysts to the reactor whilst also in the presence of one or more agents suitable to suppress tungsten precipitation.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: November 1, 2022
    Assignee: SHELL USA, INC.
    Inventors: Dionysius Jacobus Maria De Vlieger, Pieter Huizenga, Munro Mackay, Lucas Petrus Simon Keyzer, Duraisamy Muthusamy
  • Patent number: 11479750
    Abstract: Processes, systems, and associated control methodologies are disclosed that control the flow of biogas during the biogas cleanup process to create a more consistent flow of biogas through the digester, while also optimizing the output and efficiency of the overall renewable natural gas facility. In representative embodiments, a biogas buffer storage system may be used during the cleanup process to control the pressure and flow rate of biogas. The biogas buffer storage system may monitor and control the biogas flow rate to either bring down or increase the digester pressure, thereby maintaining a normalized biogas flow rate.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: October 25, 2022
    Assignee: Trillium Transportation Fuels, LLC
    Inventor: Carson Hoyt
  • Patent number: 11479728
    Abstract: The present invention relates to a process for preparing liquid hydrocarbons by the Fischer-Tropsch process integrated into refineries, in particular comprising recycling streams from the steam reforming hydrogen production process as the feedstock for the Fischer-Tropsch process.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: October 25, 2022
    Inventor: Roberto Carlos Pontes Bittencourt
  • Patent number: 11479462
    Abstract: A high-pressure steam stream produced from the waste heat recovery system of a syngas producing unit may be superheated and then supplied to a steam turbine in a hydrocarbon production plant to produce an expanded steam stream and shaft power. A portion of the expanded stream can be fed into the reforming reactor in the syngas producing unit. The shaft power can be used to drive compressors and pumps in an olefins production plant. Considerable energy efficiency and capital investment savings can be realized by such steam integration compared to running the olefins production plant separately.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: October 25, 2022
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventor: David Spicer
  • Patent number: 11465903
    Abstract: Systems and methods are provided for using oxycombustion to provide heat within a reverse flow reactor environment. The oxygen for the oxycombustion can be provided by oxygen stored in an oxygen storage component in the reactor. By using an oxygen storage component to provide the oxygen for combustion during the regeneration step, heat can be added to a reverse flow reactor while reducing or minimizing addition of diluents and while avoiding the need for an air separation unit. As a result, a regeneration flue gas can be formed that is substantially composed of CO2 and/or H2O without requiring the additional cost of creating a substantially pure oxygen-containing gas flow.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: October 11, 2022
    Assignee: ExxonMobil Technology and Engineering Company
    Inventors: Everett J. O'Neal, Brian M. Weiss, Anastasios I. Skoulidas
  • Patent number: 11460245
    Abstract: A method of natural gas treatment including introducing a natural gas containing stream into a dryer unit, thereby producing a treated natural gas containing stream. Introducing the treated natural gas containing stream into a nitrogen rejection unit, thereby producing a further treated natural gas stream as a nitrogen rejection unit product. Splitting the nitrogen rejection unit product into at least two portions, introducing the first portion of the further treated natural gas stream into a reformer unit as first part of feed, and introducing a second portion of the further treated natural gas stream into the dryer unit as a regeneration stream, thereby producing a regeneration waste stream. Introducing at least a portion of the regeneration waste stream into the reformer unit as second part of feed.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: October 4, 2022
    Assignee: L'Air Liquide, Scoiété Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
    Inventors: Yufeng Qian, Jasmin Junger, Elise Renou, Alexander Roesch
  • Patent number: 11459284
    Abstract: The present disclosure provides a process for producing trifluoroiodomethane, the process comprising providing a reactant stream comprising hydrogen iodide and at least one trifluoroacetyl halide selected from the group consisting of trifluoroacetyl chloride, trifluoroacetyl fluoride, trifluoroacetyl bromide, and combinations thereof, reacting the reactant stream in the presence of a first catalyst at a first reaction temperature from about 25° C. to about 400° C. to produce an intermediate product stream comprising trifluoroacetyl iodide, and reacting the intermediate product stream in the presence of a second catalyst at a second reaction temperature from about 200° C. to about 600° C. to produce a final product stream comprising the trifluoroiodomethane.
    Type: Grant
    Filed: February 22, 2021
    Date of Patent: October 4, 2022
    Assignee: Honeywell International Inc.
    Inventors: Haridasan K. Nair, Glenn Matthies, Rajiv Ratna Singh, Terris Yang, Haiyou Wang, Ryan J. Hulse, Rajiv Banavali
  • Patent number: 11459279
    Abstract: A supported catalyst for preparing light olefin using direct conversion of syngas is a composite catalyst and formed by compounding component I and component II in a mechanical mixing mode. The active ingredient of component I is a metal oxide; and the component II is a supported zeolite. A carrier is one or more than one of hierarchical pores Al2O3, SiO2, TiO2, ZrO2, CeO2, MgO and Ga2O3; the zeolite is one or more than one of CHA and AEI structures; and the load of the zeolite is 4%-45% wt. A weight ratio of the active ingredients in the component I to the component II is 0.1-20. The reaction process has an extremely high light olefin selectivity; the sum of the selectivity of the light olefin comprising ethylene, propylene and butylene can reach 50-90%, while the selectivity of a methane side product is less than 7%.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: October 4, 2022
    Inventors: Xiulian Pan, Feng Jiao, Xinhe Bao, Gen Li
  • Patent number: 11447438
    Abstract: The present application provides a process of preparing 3,3,3-trifluoroprop-1-ene, comprising reacting 3-chloro-1,1,1-trifluoropropane with a base in an aqueous solvent component in the absence of a phase transfer catalyst.
    Type: Grant
    Filed: May 3, 2021
    Date of Patent: September 20, 2022
    Inventors: Xuehui Sun, Karl Robert Krause