Patents Examined by Jason Chong
  • Patent number: 9758447
    Abstract: In a process for dehydrogenating cyclohexylbenzene and/or alkyl-substituted cyclohexylbenzene compounds, a dehydrogenation catalyst comprising at least one Group 10 metal compound on a support is heated in the presence of hydrogen from a first temperature from 0° C. to 200° C. to a second, higher temperature from 60° C. to 500° C. at a ramp rate no more than 100° C./hour. The dehydrogenation catalyst is contacted with hydrogen at the second temperature for a time from 3 to 300 hours to produce an activated dehydrogenation catalyst. A feed comprising cyclohexylbenzene and/or an alkyl-substituted cyclohexylbenzene compound is then contacted with hydrogen in the presence of the activated dehydrogenation catalyst under conditions effective to produce a dehydrogenation reaction product comprising biphenyl and/or an alkyl-substituted biphenyl compound.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: September 12, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jihad M. Dakka, Lorenzo C. DeCaul, Gregory J. De Martin, Michael Salciccioli, Neeraj Sangar, Aaron B. Pavlish, Ali A. Kheir, Gary D. Mohr
  • Patent number: 9758442
    Abstract: Process for simultaneous dehydration and skeletal isomerization of a feedstock that comprises at least one C4 monoalcohol and that contains between 0.5 and 50% water, for the purpose of producing C4 alkenes, with said process operating at a temperature of between 250 and 550° C., under a pressure of between 0.1 and 1 MPa, with an hourly volumetric flow rate of between 0.1 and 10 h?1, characterized in that it uses a catalyst that comprises at least one non-zeolitic aluminosilicate-type solid.
    Type: Grant
    Filed: March 25, 2013
    Date of Patent: September 12, 2017
    Assignee: IFP ENERGIES NOUVELLES
    Inventors: Alexandra Chaumonnot, Vincent Coupard, Sylvie Maury
  • Patent number: 9738576
    Abstract: A process and system for the production of at least one xylene isomer is provided. The process includes passing a first stream to one side of a split shell fractionation column and a second stream to the other side of the column. The first stream has a higher ratio of methyl to C2+ alkyl-substituted C9 aromatic compounds than the second stream. A bottoms stream from the one side is separated and passed as feed to a transalkylation zone.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: August 22, 2017
    Assignee: UOP LLC
    Inventors: Jason T. Corradi, Leonid Bresler
  • Patent number: 9738838
    Abstract: Provided is an improved hydroprocessing process allowing one to realize superior isoselectivity. The process comprises contacting a feed comprised of normal hydrocarbons under hydroprocessing conditions with a catalyst comprising delaminated SSZ-70. The delaminated SSZ-70 has been found to provide unexpected improvements in the catalysis of hydroprocessing hydrocarbons. Delaminated SSZ-70 offers a zeolite layer with a single unit cell of thickness in one dimension, allowing an elimination of mass transfer in comparison with non-delaminated SSZ-70.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: August 22, 2017
    Assignee: Chevron U.S.A. Inc.
    Inventors: Bi-Zeng Zhan, Stacey Ian Zones, Christopher M. Lew
  • Patent number: 9714202
    Abstract: A method for producing adamantane includes the steps of preparing a catalytic composition including an acidic ionic liquid and a co-catalyst and subjecting a tetrahydrodicyclopentadiene-containing component to isomerization in the presence of the catalytic composition to form adamantane. The acidic ionic liquid includes aluminum chloride and a quaternary onium compound selected from the group consisting of a quaternary ammonium halide, a quaternary phosphonium halide, and a combination thereof. The co-catalyst is an oxygen-containing reagent.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: July 25, 2017
    Assignee: CPC Corporation, Taiwan
    Inventors: Ming-Yu Huang, Jann-Chen Lin, Yih-Ping Wang, Jung-Chung Wu
  • Patent number: 9714390
    Abstract: A process for purifying a hydrocarbon feed, using a first adsorption unit with first and second adsorption columns respectively filled with first and second adsorbent solids by simultaneously: a) treating the liquid phase hydrocarbon feed in the first adsorption column by contact with the first adsorbent solid to adsorb at least a portion of impurities present and to produce hydrocarbon effluent which is depleted in impurities; b) treating a secondary liquid hydrocarbon feed constituted either by a fraction of the hydrocarbon feed or by a fraction of the hydrocarbon effluent and depleted in impurities to purify the secondary liquid hydrocarbon feed; c) heating the treated secondary liquid hydrocarbon feed from step b); d) regenerating the second adsorbent solid of the second adsorption column which comprises impurities with the secondary hydrocarbon feed heated in step c) to desorb the impurities to produce an effluent with impurities.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: July 25, 2017
    Assignee: AXENS
    Inventors: Isabelle Villechange, Tom Frising
  • Patent number: 9573864
    Abstract: A method of producing monocyclic aromatic hydrocarbons includes bringing a feedstock oil having a 10 vol % distillation temperature of 140° C. or higher and a 90 vol % distillation temperature of 380° C. or lower, into contact with a catalyst for monocyclic aromatic hydrocarbon production containing a crystalline aluminosilicate, in which a content ratio of monocyclic naphthenobenzenes in the feedstock oil is adjusted to 10 mass % to 90 mass %, by mixing a hydrocarbon oil A having a 10 vol % distillation temperature of 140° C. or higher and a 90 vol % distillation temperature of 380° C. or lower with a hydrocarbon oil B containing more monocyclic naphthenobenzenes than the hydrocarbon oil A.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: February 21, 2017
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Shinichiro Yanagawa, Masahide Kobayashi, Yasuyuki Iwasa, Ryoji Ida
  • Patent number: 9505672
    Abstract: Olefins are produced by the reductive dehydroxylation of vicinal polyols or esters thereof, or a combination thereof, in a liquid reaction medium, under a hydrogen atmosphere, at a temperature from 50° C. to 250° C., in the presence of a halogen-based, preferably iodine-based, catalyst. Examples of the catalyst, which may be included independently or generated in situ, are iodine (I2), hydroiodic acid (HI), iodic acid (HIO3), lithium iodide (LiI), and combinations thereof.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: November 29, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: Raj Deshpande, Paul Davis, Vandana Pandey, Nitin Kore, John R. Briggs
  • Patent number: 9505681
    Abstract: A process for isomerizing an aromatic cut containing at least one aromatic compound containing eight carbon atoms per molecule, which includes bringing the aromatic cut into contact with a catalyst containing a zeolite with structure type EUO, which catalyst has been prepared by obtaining a zeolite with structure type EUO having an overall Si/Al atomic ratio in the range 5 to 45, a sodium content in the range 500 to 5000 ppm by weight, with a Na/Al ratio in the range 5% to 20% by mole, and thereafter performing the following: i) preparing a support by shaping the zeolite with a matrix such that the zeolite content is in the range 8% to 15% by weight with respect to the support; ii) depositing at least one metal from group VIII of the periodic classification of the elements onto the support or onto the zeolite; wherein the catalyst contains a final sodium content of 75 to 600 ppm by weight.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: November 29, 2016
    Assignee: IFP Energies nouvelles
    Inventors: Emmanuelle Guillon, Laure Brandhorst
  • Patent number: 9499454
    Abstract: Olefins may be produced by the reductive dehydroxylation of vicinal polyols and/or their respective esters, in an aqueous reaction medium, under a hydrogen atmosphere, under suitable conditions, and in the presence of a halogen-based, preferably iodine-based, catalyst, wherein a solubility enhancing agent is employed to increase the solubility of the iodine-based catalyst in the aqueous reaction medium.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: November 22, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: Raj Deshpande, Paul Davis, Vandana Pandey, Nitin Kore
  • Patent number: 9487455
    Abstract: Crude alcohol streams are converted to olefins under reductive or non-reductive dehydroxylation conditions, in the presence of a halogen-based catalyst. The process includes autogenous gas pressure or a gas pressure from 1 psig (˜6.89 KPa) to 2000 psig (˜13.79 MPa), a temperature from 50° C. to 250° C., a liquid reaction medium, and a molar ratio of alcohol to halogen from 1:10 to 100:1.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: November 8, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: Raj Deshpande, Paul Davis, Vandana Pandey, Nitin Kore
  • Patent number: 9469575
    Abstract: Olefins may be produced by the non-reductive dehydroxylation of vicinal polyols and/or their respective esters, in a liquid reaction medium, under a substantially non-reductive atmosphere, in the presence of a halogen-based, preferably iodine-based, catalyst. The reaction medium may be aqueous, non-aqueous, or a combination thereof, and may in some embodiments include a solubility enhancing agent.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: October 18, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: Raj Deshpande, Paul Davis, Vandana Pandey, Nitin Kore
  • Patent number: 9340472
    Abstract: Disclosed is a method for producing a conjugated diene by subjecting a monoolefin having a carbon atom number of 4 or more and an oxygen gas to an oxidative dehydrogenation reaction by using a molybdenum-containing metal oxide catalyst under heat removal with a coolant, wherein an amount of molybdenum adhered onto a cooling heat transfer surface within a reactor is kept at not more than 20 mg/m2, or not only a surface roughness Ra of a cooling heat transfer surface within a reactor is not more than 3 ?m, but a temperature difference between a reaction temperature and a coolant temperature is in the range of from 5 to 220° C.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: May 17, 2016
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Hiroshi Kameo, Hidenobu Kajitani, Kazuyuki Iwakai, Hiroshi Takeo, Souichi Orita, Takeshi Takeuchi