Using Halogen Or S Patents (Class 585/442)
  • Patent number: 10710040
    Abstract: A system for promoting endothermic conversions includes a first and second portion, a first and second supply, a first outlet, and a heat exchanger. The first portion defines a first inner volume containing an oxygen transfer agent. The first supply contains a reducing agent and is fluidly connected to the first inner volume. The first outlet conveys one or more of carbon dioxide, water, and an unsaturated hydrocarbon from the first inner volume. The second portion and the heat exchanger positioned within the second portion define a second inner volume containing reduced oxygen transfer agent. The second supply contains an oxidizing agent fluidly connected to the second inner volume. The heat exchanger also defines a third inner volume segregated from the second inner volume, and the heat exchanger is configured to transfer heat resulting from the oxidation of the reduced oxygen transfer agent to the third inner volume.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: July 14, 2020
    Assignee: EcoCatalytic Inc.
    Inventor: John A. Sofranko
  • Patent number: 8426613
    Abstract: This invention relates to the synthesis of substituted tetrahydroindenyls and the use of the synthesized complexes in the homo- and co-polymerization of ethylene and alpha-olefins.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: April 23, 2013
    Assignee: Total Petrochemicals Research Feluy
    Inventors: Alexander Z. Voskoboynikov, Vyatcheslav V. Izmer, Dmitry S. Kononovich, Abbas Razavi
  • Publication number: 20120226084
    Abstract: This invention relates to a process for hydrocarbon conversion comprising contacting a hydrocarbon feedstock with a crystalline molecular sieve, in its ammonium exchanged form or in its calcined form, under conversion conditions to form a conversion product, said crystalline molecular sieve comprising unit cells with MWW topology and is characterized by diffraction streaking from the unit cell arrangement in the c direction as evidenced by the arced hk0 patterns of electron diffraction pattern.
    Type: Application
    Filed: December 15, 2011
    Publication date: September 6, 2012
    Inventors: Wieslaw J. Roth, Thomas Yorke, Douglas Lewis Dorset, Mohan Kalyanaraman, Michael Charles Kerby, Simon Christopher Weston
  • Publication number: 20110123423
    Abstract: The invention relates to the realization of synthesis of organic compounds or abatement of volatile organic compounds (VOCs) in gas-solid fluidised bed photocatalytic reactor with improved illumination efficiency. The photoreactor consists of a two-dimensional fluidized bed catalytic reactor with two walls transparent to ultraviolet radiation, by an illumination system bases on a matrix of LEDs positioned near its external walls, and heated for Joule effect inside the catalytic bed to monitor the reaction temperature. Surprisingly, through the choice of a suitable catalyst and fluidized bed photoreactor operating conditions both total and partial oxidation reactions can be achieved with high activity and selectivity. Even more surprisingly, the value of the illuminated catalyst surface area per unit irradiated volume reaches values in the order of 106 m?1, significantly higher than those of microreactors, amounting to 250,000 m?1 and slurry reactors with values in 8500-170000 m?1.
    Type: Application
    Filed: May 29, 2009
    Publication date: May 26, 2011
    Inventors: Paolo Ciambelli, Diana Sannino, Vincenzo Palma, Vincenzo Vaiano
  • Patent number: 7642390
    Abstract: Improved methods and related apparatus are disclosed for efficiently recovering the heat of condensation from overhead vapor produced during separation of various components of dehydrogenation reaction effluent, particularly in ethylbenzene-to-styrene operations, by the use of at least a compressor to facilitate azeotropic vaporization of an ethylbenzene and water mixture within a preferred range of pressure/temperature conditions so as to minimize undesired polymerization reactions.
    Type: Grant
    Filed: June 5, 2003
    Date of Patent: January 5, 2010
    Assignee: Stone & Webster, Inc.
    Inventors: Slawomir A. Oleksy, Vincent A. Welch, Leslie F. Whittle
  • Patent number: 7592499
    Abstract: A process for co-producing para-xylene and styrene from a feed (1) of hydrocarbons containing xylenes and ethylbenzene is described, the process comprising the following succession of steps: a step for separating the feed in a simulated moving bed in an adsorption column (6) containing beds of an adsorbent, from which an extract that is rich in para-xylene (7a) of at least 99.7% purity and at least one raffinate (7b) containing ethylbenzene, ortho-xylene, meta-xylene and a very small quantity of para-xylene is withdrawn; a step for dehydrogenating (10) the ethylbenzene contained in the raffinate (7b) to styrene; at least one step for primary separation of the stream (11) from the dehydrogenation step (10), to eliminate by-products; a step for separating the purified mixture (18) derived from the stream (11) containing styrene, unconverted ethylbenzene, meta-xylene and ortho-xylene, from which a stream (21a) that is rich in styrene of at least 99.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: September 22, 2009
    Assignee: Institut Francais du Petrole
    Inventors: Luc Wolff, Philibert Leflaive, Alain Methivier
  • Patent number: 6511593
    Abstract: The invention relates to a homogeneous bed of catalyst particles comprising at least one amorphous matrix, at least one noble metal, at least one additional metal M and at least one halogen, and in which, for a catalyst particle: CPt is the local concentration of noble metal; CM is the local concentration of additional metal M; Cx is the local concentration of halogen; in which catalyst particle bed the local dispersion of the value of CPt/CM or CPt/Cx is termed homogeneous along the diameter of the particle, which corresponds to at least 70% of the values CPt/CM or CPt/Cx deviating by a maximum of 30% from the local average ratio. The invention also relates to a process for transforming hydrocarbons into aromatic compounds with the catalyst, such as a gasoline reforming process and a process for producing aromatic compounds.
    Type: Grant
    Filed: February 11, 2000
    Date of Patent: January 28, 2003
    Assignee: Institut Francais de Petrole
    Inventors: Fabienne Le Peltier, Jean-Marie Deves, Olivier Clause, Frédéric Kolenda, Nathalie Brunard
  • Patent number: 6420305
    Abstract: A method for producting a solid acid catalyst is provided which produces a shaped material of a solid acid catalyst containing a sulfureous component but have a high activity and having a practically sufficient handleability and mechanical strength involves the steps of (a) fabricating a support containing a portion of zirconia and/or hydrated zirconia and a portion of alumina and/or hydrated alumina and having a peak diameter in the range of 0.05 to 1 &mgr;m in a pore diameter distribution of 0.05 to 10 &mgr;m; and having a sulfuerous component supported on the support or (b) fabricating a support containing a portion of zirconia and/or hydrated zirconia and a portion of alumina and/or hydrated alumina and including pores having a pore diameter of not less than 0.05 &mgr;m and not more than 1 &mgr;m occupying a pore volume of 0.05 to 0.5 ml/g and pores having a pore diameter of about 1 &mgr;m and not more than 10 &mgr;m occupying a pore volume of below 0.
    Type: Grant
    Filed: August 11, 2000
    Date of Patent: July 16, 2002
    Assignee: Japan Energy Corporation
    Inventors: Kenji Matsuzawa, Kohjiroh Aimoto, Kazuhiro Seki
  • Patent number: 6316675
    Abstract: A process for the synthesis of olefins having aromatic substituents is described in which olefins are reacted with aryl halides in the presence of catalysts consisting of palladium compounds and tetraaryl phosphonium salts.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: November 13, 2001
    Assignee: Studiengesellschaft Kohle mbH
    Inventors: Manfred T. Reetz, Gunther Lohmer, Renate Lohmer
  • Patent number: 6194606
    Abstract: The present invention provides compounds having the formula: in which R is hydrogen or C1-C4alkyl, preferably hydrogen and Y is hydrogen, C1-C4alkyl, C1-C4alkoxy, CF3, halogen (F, Cl, Br or I) or SO3M in which M is H, Na, K, Ca, Mg, ammonium, mono-, di-, tri- or tetra-C1-C4alkylammonium, mono-, di- or tri-hydroxyalkylammonium or ammonium that is di- or tri-substituted with a mixture of C1-C4alkyl and C1-C4hydroxyalkyl groups; a process for their production; and their use as intermediates in the production of asymmetric or symmetric fluorescent whitening agents.
    Type: Grant
    Filed: September 22, 1998
    Date of Patent: February 27, 2001
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Bernd Siebenhaar, Bruno Casagrande, Victor Eliu
  • Patent number: 6187985
    Abstract: A process for dehydrogenating C5-C22 aliphatic hydrocarbons to the corresponding olefinic hydrocarbons is carried out in the presence of a catalyst comprising at least one support, at least one metal from group VIII of the periodic table and at least one additional element M selected from the group formed by germanium, tin, lead, rhenium, gallium, indium, and thallium. The process is characterized in that the catalyst is prepared using a process in which said metal M is introduced in an aqueous solvent in the form of at least one organometallic compound comprising at least one carbon-M bond.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: February 13, 2001
    Assignee: Institut Francais du Petrole
    Inventors: Fabienne Le Peltier, Blaise Didillon, Olivier Clause
  • Patent number: 5196631
    Abstract: The catalyst is an L-type zeolite with platinum supported thereon, which is then treated with a halogen-containing compound. The catalyst has a long catalyst life and is extremely useful for the preparation of aromatic hydrocarbons from aliphatic hydrocarbons. The process using the catalyst provides a production of aromatic hydrocarbons with a high yield.
    Type: Grant
    Filed: November 15, 1991
    Date of Patent: March 23, 1993
    Assignee: Research Association for Utilization of Light Oil
    Inventors: Takashi Murakawa, Hisashi Katsuno
  • Patent number: 5012025
    Abstract: A catalyst for promoting the molecular restructuring of the components of hydrocarbons to form desired products. The catalyst comprises copper salts, copper acetate being particularly preferred, in combination with anhydrous aluminum chloride. The catalyst can be used with either gaseous hydrocarbon raw materials such as natural gas, refinery gas, biomass decomposition gases, and similar materials, or with solids, meltable solids, or liquid hydrocarbon-containing raw materials including tar sands, oil shale, waxes, asphaltic compositions and the like. In the case of gaseous raw materials, the gases are preferably brought into contact with the copper salt coated on a catalyst support such as refractory alumina, in the presence of anhydrous aluminum chloride, which can be in vaporous form, in a continuous process.
    Type: Grant
    Filed: August 23, 1989
    Date of Patent: April 30, 1991
    Inventor: Viswanatha Sankaran
  • Patent number: 4886928
    Abstract: A novel dehydrogenation process is disclosed which utilizes a catalyst comprising a platinum group component, a component selected from the group comprising scandium, yttrium, lanthanum, and actinium, a component selected from the group comprising tin, lead, and germanium, less than 0.3 wt. % of a halogen component, and an optional Group IA or IIA component, all on a refractory inorganic oxide support.
    Type: Grant
    Filed: September 26, 1988
    Date of Patent: December 12, 1989
    Assignee: UOP
    Inventors: Tamotsu Imai, Robert J. Schmidt
  • Patent number: 4695664
    Abstract: The invention is an improved method and apparatus for recovering waste heat from a low temperature process stream by means of a vaporizable heat sink liquid, characterized by an effective lowering of the boiling temperature of the heat sink liquid without need to reduce its boiling pressure. The heat sink liquid essentially comprises a mixture of two immiscible liquids that form a low boiling azeotrope. The heat sink liquid is brought into indirect heat exchange with the low temperature process stream for heat extraction. The invention involves simultaneous boiling of the two immiscible liquids to suppress the temperature of the heat sink liquid to below the low temperature of the process stream, whereby the heat sink liquid is able to recover heat from the process stream. In a preferred embodiment of the invention, the heat sink liquid comprises the reactants that are fed to a reactor, and the low temperature process stream is the reaction effluent from the reactor.
    Type: Grant
    Filed: April 17, 1986
    Date of Patent: September 22, 1987
    Assignee: The Badger Company, Inc.
    Inventor: Leslie F. Whittle
  • Patent number: 4613711
    Abstract: Disclosed is the dehydrocyclization of certain alkylaromatics to indene or a substituted indene by contacting certain alkylaromatics in admixture with H.sub.2 O with a sulfided metal oxide catalyst.
    Type: Grant
    Filed: November 25, 1985
    Date of Patent: September 23, 1986
    Assignee: The Standard Oil Company
    Inventors: S. Erik Pedersen, Wilfrid G. Shaw, Linda L. Pfingsten
  • Patent number: 4568783
    Abstract: Disclosed is the vapor phase catalytic dehydrogenation of indanes to indenes over a Co--Mo oxide on alumina catalyst and in the presence of sulfur.
    Type: Grant
    Filed: June 24, 1985
    Date of Patent: February 4, 1986
    Assignee: The Standard Oil Company
    Inventors: S. Erik Pedersen, Diane G. Farrington
  • Patent number: 4560818
    Abstract: Ethyltoluene is oxidatively dehydrogenated to methylstyrene selectivity and in high conversions by treatment with hydrogen sulfide and oxygen at elevated temperatures of about C. to C. over magnesium oxide catalyst.
    Type: Grant
    Filed: December 24, 1984
    Date of Patent: December 24, 1985
    Assignee: Mobil Oil Corporation
    Inventor: Chin-Chiun Chu
  • Patent number: 4549032
    Abstract: A process for producing styrene by the dehydrogenation of ethyl benzene whereby the ethyl benzene in a mixture with steam is introduced into a tubular reactor, the tubes of which are heated by molten salts. The structural parameters of this process are the tube diameter which should be 20 to 35 millimeters, the temperature of the molten salts which should be to C. and at most C. higher than the reaction temperature at the catalyst and the weight ratio of steam to ethyl benzene of the feed stock which should be 0.5 to 1. The process saves energy and increases efficiency by reducing the steam consumption.
    Type: Grant
    Filed: May 23, 1984
    Date of Patent: October 22, 1985
    Assignees: Metallgesellschaft Aktiengesellschaft, Deggendorfer Werft und Eisenbau GmbH
    Inventors: Friedrich-Wilhelm Moeller, Henning Buchold, Helmut Klein, Otto-Ludwig Garkisch, Friedrich Guetlhuber, Walter Laber
  • Patent number: 4417084
    Abstract: In the catalytic dehydrogenation of p-ethyltoluene to p-methylstyrene, popcorn polymer forms and builds up in the condenser, shortly plugging it. This is prevented by adding minor amounts of H.sub.2 S continuously to the gaseous product effluent entering the condenser.
    Type: Grant
    Filed: March 3, 1980
    Date of Patent: November 22, 1983
    Assignee: Mobil Oil Corporation
    Inventor: Chin-Chiun Chu
  • Patent number: 4371730
    Abstract: The catalytic dehydrogenation of at least one dehydrogenatable organic compound which has at least one ##STR1## grouping is carried out in the presence of a zinc silicate catalyst and in the substantial absence of free oxygen.
    Type: Grant
    Filed: June 5, 1981
    Date of Patent: February 1, 1983
    Assignee: Phillips Petroleum Company
    Inventor: Alan D. Eastman
  • Patent number: 4359594
    Abstract: Vinyl cyclohexene is converted to ethylbenzene and styrene at C. in the presence of a hydrogen transfer catalyst typified by IrCl(CO)(Ph.sub.3 P).sub.2.
    Type: Grant
    Filed: February 9, 1981
    Date of Patent: November 16, 1982
    Assignee: Texaco Inc.
    Inventors: John A. Patterson, Wheeler C. Crawford, James R. Wilson
  • Patent number: 4338476
    Abstract: Alkylaromatic hydrocarbons are dehydrogenated in admixture with steam, with the dehydrogenation zone effluent being condensed to form a water stream which is purified in a stripping column. The stripping column is reboiled by indirect heat exchange against the effluent of the dehydrogenation zone. The steam-rich overhead vapor stream of the stripping column is mixed directly into the dehydrogenation zone feed stream without intermediate condensation or pressurization.
    Type: Grant
    Filed: December 14, 1978
    Date of Patent: July 6, 1982
    Assignee: UOP Inc.
    Inventors: Anthony G. Vickers, Robert F. Zabransky
  • Patent number: 4332972
    Abstract: Improved oxidative dehydrogenation catalysts are prepared by modifying a preformed zinc ferrite oxidative dehydrogenation catalyst with zinc oxide. The resulting catalyst compositions exhibit higher conversions and yields.
    Type: Grant
    Filed: September 8, 1978
    Date of Patent: June 1, 1982
    Assignee: Petro-Tex Chemical Corporation
    Inventors: Harold F. Christmann, Edward J. Miklas
  • Patent number: 4287375
    Abstract: The invention relates to a process of converting ethylbenzene to styrene by catalytic dehydrogenation at temperatures of about C. in the presence of water vapor in a tubular reactor. The heat required for the dehydrogenation is fed to the tubular reactor with a molten salt bath. The dehydrogenation is effected isothermally and in a single stage under atmospheric pressure or preferable under a subatmospheric pressure with a water vapor-ethylbenzene ratio of 1.2 to 1.5 kg of water vapor per kg of ethylbenzene. The temperature of the ethylbenzene-water-vapor mixture entering the tubular reactor is maintained to C. below the temperature of the molten salt bath.
    Type: Grant
    Filed: March 11, 1980
    Date of Patent: September 1, 1981
    Assignee: Metallgesellschaft Aktiengesellschaft
    Inventors: Friedrich-Wilhelm Moller, Henning Buchold, Helmut Klein, Otto-Ludwig Garkisch, Friedrich Gutlhuber, Walter Laber
  • Patent number: 4254288
    Abstract: A method of producing an aromatic compound comprises dehydrogenating a compound having a six-membered carbocyclic ring in the molecule, the ring having a degree of saturation greater than that of a benzene ring, the dehydrogenation being carried out in the presence of a catalyst system comprising elemental palladium together with sodium carbonate and sulphur. The compound to be dehydrogenated may be a substituted cyclohexane. When the substituted cyclohexane is an alkoxycyclohexanol, the aromatic compound produced is an alkoxy phenol. In particularly useful aspect of the invention the substituted cyclohexane is a 2-alkoxycyclohexanol, the aromatic compound produced being an ortho-alkoxy phenol.
    Type: Grant
    Filed: July 6, 1979
    Date of Patent: March 3, 1981
    Assignee: Coalite Group Limited
    Inventor: Keith Gladwin
  • Patent number: 4239929
    Abstract: Alkyl cyclohexa-1,3-dienes are aromatized with sulfur dioxide and oxygen. Cyclohexa-1,4-dienes are aromatized with sulfur dioxide. Conjugated dienic hydrocarbons, including alkyl cyclohexa-1,3-dienes, are converted to beta-olefinic peroxides by sulfur dioxide and oxygen. The aromatization reactions are useful as part of the synthesis of selected aromatics from acyclic olefins. The beta-olefinic peroxides are useful intermediates in the production of 1,4-diols.
    Type: Grant
    Filed: November 1, 1978
    Date of Patent: December 16, 1980
    Assignee: Allied Chemical Corporation
    Inventors: Divakaran Masilamani, Milorad M. Rogic