Catalytic Patents (Class 208/134)
  • Publication number: 20090236265
    Abstract: A pre-processing assembly and method for processing fuel feedstock containing oxygen and hydrocarbons having higher and lower hydrocarbon content for a fuel cell, wherein the pre-processing assembly has a deoxidizing bed for reducing oxygen in the fuel feedstock and a pre-reforming bed for reducing higher hydrocarbon content in the fuel feedstock and wherein the deoxidizing bed and the pre-reforming bed are disposed within a common reaction vessel such that the fuel feedstock first passes through the deoxidizing bed and thereafter through the pre-reforming bed. The pre-reforming assembly may further include a propane processor bed for processing propane and propylene in the fuel feedstock, where the propane processor bed is disposed within the common reaction vessel with the deoxidizing bed and the pre-reforming bed.
    Type: Application
    Filed: June 4, 2009
    Publication date: September 24, 2009
    Inventors: Sai P. Katikaneni, Joseph M. Daly
  • Publication number: 20090223861
    Abstract: For shortening the starting time of an autothermal reformer, the autothermal reformer is started by a method comprising: a first preheating step of heating a reforming catalyst up to a predetermined temperature with use of heating means, the heating means being positioned upstream of the reforming catalyst to heat the reforming catalyst; a second preheating step of stopping the heating after arrival at the predetermined temperature, feeding vaporized fuel and air to the reforming catalyst at the predetermined temperature, allowing the fuel to be oxidized by the reforming catalyst and thereby heating the reforming catalyst; and a starting step of also supplying steam to the reforming catalyst heated by the second preheating step and starting autothermal reforming under the condition for a steady state.
    Type: Application
    Filed: September 21, 2006
    Publication date: September 10, 2009
    Applicant: NIPPON OIL CORPORATION
    Inventors: Yukihiro Sugiura, Yasushi Mizuno
  • Publication number: 20090211942
    Abstract: Disclosed are catalysts and methods that can reform aqueous solutions of oxygenated compounds such as ethylene glycol, glycerol, sugar alcohols, and sugars to generate products such as hydrogen and alkanes. In some embodiments, aqueous solutions containing at least 20 wt % of the oxygenated compounds can be reformed over a catalyst comprising a Group VIII transition metal and a Group VIIB transition metal, preferably supported on an activated carbon-supported catalyst. In other embodiments, catalysts are provided for the production of hydrogen or alkanes at reaction temperatures less than 300° C.
    Type: Application
    Filed: December 18, 2006
    Publication date: August 27, 2009
    Inventors: Randy D. Cortright, Nicholas W. Vollendorf, Charles C. Hornemann, Shawn P. McMahon
  • Patent number: 7569508
    Abstract: Reforming nanocatalysts are formed using a dispersing agent to increase the activity, selectivity and longevity of the catalyst when used in a reforming process. The nanocatalyst particles are formed using a dispersing agent having at least one functional group selected from the group of a hydroxyl, a carboxyl, a carbonyl, an amide, an amine, a thiol, a sulfonic acid, sulfonyl halide, an acyl halide, an organometallic complex, and combinations of these. The dispersing agent is particularly useful for forming multicomponent catalysts comprising an alloy, combination, mixture, decoration, or interspersion of platinum and one or more of tin, rhenium or iridium. The formation of the nanoparticles may include a heat treating process performed in an inert or oxidative environment to maintain the catalyst atoms in a non-zero oxidation state to thereby maintain a stronger bond between the dispersing agent and the catalyst atoms.
    Type: Grant
    Filed: April 7, 2005
    Date of Patent: August 4, 2009
    Assignee: Headwaters Technology Innovation, LLC
    Inventors: Bing Zhou, Horacio Treviño, Zhihua Wu, Zhenhua Zhou, Changkun Liu
  • Publication number: 20090166252
    Abstract: A process for preparing basestocks having superior low temperature properties at high viscosity index (VI). More particularly, a waxy feedstock is contacted with a first dewaxing catalyst having a refined constraint index (CI*) 2.0 or less followed by contacting with a second dewaxing catalyst having a refined constraint index greater than 2.0.
    Type: Application
    Filed: December 16, 2008
    Publication date: July 2, 2009
    Inventors: Michel Daage, David W. Larkin, William J. Murphy
  • Patent number: 7550073
    Abstract: The present invention relates to new crystalline molecular sieve SSZ-70 prepared using a N,N?-diisopropyl imidazolium cation as a structure-directing agent, methods for synthesizing SSZ-70 and processes employing SSZ-70 in a catalyst.
    Type: Grant
    Filed: November 2, 2005
    Date of Patent: June 23, 2009
    Assignee: Chevron U.S.A., Inc.
    Inventors: Stacey I. Zones, Allen W. Burton, Jr.
  • Patent number: 7547387
    Abstract: A process for contacting a bed of particulate material, usually catalyst, with a transverse flow of fluid is disclosed. The particulate material moves or is prevented from not moving, while the fluid passes through the bed at a rate greater than the stagnant bed pinning flow rate. This invention is applicable to hydrocarbon conversion processes and allows for higher fluid throughput rates compared to prior art processes.
    Type: Grant
    Filed: June 6, 2007
    Date of Patent: June 16, 2009
    Assignee: UOP LLC
    Inventors: Weikai Gu, Paul A. Sechrist
  • Patent number: 7541309
    Abstract: Catalysts suitable for use in reforming hydrocarbons have a halogen promoter and a plurality of dispersed nanocatalyst particles supported on a solid support. The dispersed nanocatalyst particles are manufactured using a dispersing agent to control the size and/or crystal face exposure of the particles. The controlled size and dispersion of the nanocatalyst particles allows the reforming catalyst to be loaded with significantly less halogen promoter while still maintaining or increasing the catalyst's reforming performance. The catalysts of the present invention have shown improved C5+ production with the significantly reduced levels of halogen promoter.
    Type: Grant
    Filed: May 16, 2006
    Date of Patent: June 2, 2009
    Assignee: Headwaters Technology Innovation, LLC
    Inventors: Horacio Trevino, Zhenhua Zhou, Zhihua Wu, Bing Zhou
  • Patent number: 7538063
    Abstract: Bismuth- and phosphorus-containing naphtha reforming catalysts, methods of making such catalysts, and a naphtha reforming process using such catalysts.
    Type: Grant
    Filed: January 6, 2005
    Date of Patent: May 26, 2009
    Assignee: Shell Oil Company
    Inventor: Peter Tanev Tanev
  • Patent number: 7537685
    Abstract: The present invention relates to new molecular sieve SSZ-71 prepared using a N-benzyl-1,4-diazabicyclo[2.2.2]octane cation as a structure-directing agent, methods for synthesizing SSZ-71 and processes employing SSZ-71 in a catalyst.
    Type: Grant
    Filed: November 2, 2005
    Date of Patent: May 26, 2009
    Assignee: Chevron U.S.A. Inc.
    Inventors: Cong-Yan Chen, Allen W. Burton, Jr., Ann J. Liang
  • Patent number: 7497941
    Abstract: A process to prepare two or more lubricating base oil grades and a gas oil by (a) hydrocracking/hydroisomerizing a Fischer-Tropsch product, wherein weight ratio of compounds having at least 60 or more carbon atoms and compounds having at least 30 carbon atoms in the Fischer-Tropsch product is at least 0.2 and wherein at least 30 wt % of compounds in the Fischer-Tropsch product have at least 30 carbon atoms; (b) separating the product of step (a) into one or more gas oil fractions and a base oil precursor fraction; (c) performing a pour point reducing step to the base oil precursor fraction obtained in step (b); and (d) separating the effluent of step (c) in two or more base oil grades.
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: March 3, 2009
    Assignee: Shell Oil Company
    Inventor: Gilbert Robert Bernard Germaine
  • Publication number: 20090050522
    Abstract: A process for supplementing steam reformation with hydrogen, oxygen and heat from dissociation of hydrogen peroxide (H2O2). Steam reforming suffers from starting the overall system in an endothermic manner which leads to long start times and limited turndown capability in delivering high quality hydrogen. Using a material such as hydrogen peroxide in a controlled manner allows for instant generation of oxygen-enriched steam, an essential state in reforming hydrocarbons. It additionally, offers the opportunity to relieve parasitic power requirements associated with compressing air to reach the O2 density required for the reforming process and eliminates, or minimizes (as a function of overall power system design requirements) post process cleanup of nitrogen-oxides.
    Type: Application
    Filed: July 7, 2005
    Publication date: February 26, 2009
    Applicant: CBH2 TECHNOLOGIES, INC.
    Inventors: Jeffrey L. Barber, Jeremiah J. Cronin
  • Patent number: 7491860
    Abstract: A process for adiabatic, non-oxidative dehydrogenation of hydrocarbons including passing a hydrocarbon feed stream through a catalyst bed, wherein the catalyst bed includes a first layer of a catalyst and second layer of a catalyst, wherein the catalyst of the first layer has high activity but a higher capacity for producing coke than the catalyst of the second layer and the second catalyst also has high activity but a lower capacity for producing coke than the catalyst of the first layer.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: February 17, 2009
    Assignee: Süd-Chemie Inc.
    Inventors: Vladimir Fridman, Michael Urbancic, Andrzej Rokicki
  • Publication number: 20090011291
    Abstract: The present invention provides a process for producing reagents for a chemical reaction by introducing a fuel containing hydrocarbons into a flash distillation process wherein the fuel is separated into a first component having a lower average molecular weight and a second component having a higher average molecular weight. The first component is then reformed to produce synthesis gas wherein the synthesis gas is reacted catalytically to produce the desire reagent.
    Type: Application
    Filed: September 15, 2008
    Publication date: January 8, 2009
    Inventors: Darrell R. Herling, Chris L. Aardahl, Robert T. Rozmiarek, Kenneth G. Rappe, Yong Wang, Jamelyn D. Holladay
  • Publication number: 20090000988
    Abstract: This disclosure relates to a process of manufacturing para-xylene, comprising (a) contacting a pygas feedstock and methylating agent with a catalyst under reaction conditions to produce a product having para-xylene, wherein the product has higher para-xylene content than the para-xylene content of the pygas feedstock; and (b) separating the para-xylene from the product of the step (a), wherein the catalyst comprises a molecular sieve having a Diffusion Parameter for 2,2-dimethylbutane of about 0.1-15 sec?1 when measured at a temperature of 120° C. and a 2,2-dimethylbutane pressure of 8 kPa-a and the pygas comprises from about 1 to about 65 wt % benzene and from about 5 to 35 wt % toluene.
    Type: Application
    Filed: June 28, 2007
    Publication date: January 1, 2009
    Inventors: Stephen Harold Brown, John Scott Buchanan
  • Publication number: 20080314800
    Abstract: Process to optimize the yield of base oils from a Fischer-Tropsch derived feed by performing the following steps (a) performing a hydroconversion/hydroisomerisation step on part of the Fischer-Tropsch derived feed; (b) performing a hydro-conversion/hydroisomerisation step on another part of the Fischer-Tropsch feed at a conversion greater than the conversion in step (a); and (c) isolating by means of distillation a fraction boiling in the base oil range from the two reaction products obtained in steps (a) and (b) and performing a pour point reducing step on said fraction.
    Type: Application
    Filed: November 18, 2005
    Publication date: December 25, 2008
    Applicant: SHELL INTERNATIONAL RESEARCH MAATSCHAPPIJ B.V.
    Inventors: Jan Lodewijk Maria Dierickx, Arend Hoek, Lip Piang Kueh
  • Publication number: 20080277315
    Abstract: The invention relates to a cylindrical catalyst body 1 which is characterized in that indentations are provided on the circumferential surface 3 of the catalyst body 1. These indentations are preferably configured as grooves 4 and webs 5 which run parallel to the longitudinal axis 2 of the catalyst body 1.
    Type: Application
    Filed: April 27, 2006
    Publication date: November 13, 2008
    Applicant: SUD-CHEMIE AG
    Inventors: Norbert Ringer, Gerhard Selig, Hans-Joachim Muller
  • Patent number: 7449169
    Abstract: The present invention refers to a microporous crystalline material of zeolitic nature (ITQ-22) which, in the calcined state, has the empirical formula x(M1/nX02):yYO2:zR:wH20 wherein M is H+ or at least one inorganic cation of charge +n; X is at least one chemical element of oxidation state +3, preferably selected from the group consisting of Al, Ga, B, Fe and Cr; Y is at least one chemical element with oxidation state +4 other than Si and Ge, preferably selected from the group consisting of Ti, Sn and V; x has a value less than 0.2, preferably less than 0.1 and can take the value zero, y has a value less than 0.1, preferably less than 0.05 and can take the value zero, z has a value less than 0.8, preferably between 0.005 and 0.5 and can take the value zero, with a characteristic X-ray diffraction pattern, to the method of preparation and to the use of the material in separation and transformation processes of organic compounds.
    Type: Grant
    Filed: November 23, 2004
    Date of Patent: November 11, 2008
    Assignees: Consejo Superior de Investigaciones Cientificas, Universidad Politecnica de Valencia
    Inventors: Avelino Corma Canós, Fernando Rey García, Susana Valencia Valencia, Luis Joaquín Martinez Triguero
  • Patent number: 7442290
    Abstract: Mesoporous aluminum oxides with high surface areas have been synthesized using inexpensive, small organic templating agents instead of surfactants. Optionally, some of the aluminum can be framework-substituted by one or more other elements. The material has high thermal stability and possesses a three-dimensionally randomly connected mesopore network with continuously tunable pore sizes. This material can be used as catalysts for dehydration, hydrotreating, hydrogenation, catalytic reforming, steam reforming, amination, Fischer-Tropsch synthesis and Diels-Alder synthesis, etc.
    Type: Grant
    Filed: March 21, 2007
    Date of Patent: October 28, 2008
    Assignee: Lummus Technology Inc.
    Inventors: Zhiping Shan, Jacobus Cornelius Jansen, Chuen Y. Yeh, Philip J. Angevine, Thomas Maschmeyer
  • Publication number: 20080257784
    Abstract: A process for hydrogenating unsaturations in petrochemical feedstocks, the process comprising contacting the petrochemical feedstock, including at least one component having unsaturations, and hydrogen with a catalyst comprising at least one Group Ia, Ib, IIb, VIb, VIIb or VIII metal on a support of an alkaline earth metal silicate having a surface area of at least 30 m2/g at a temperature of from 0 to 250° C. and a pressure of from 3 to 50 barg.
    Type: Application
    Filed: October 31, 2007
    Publication date: October 23, 2008
    Applicant: Total Petrochemicals Research Feluy
    Inventors: Jean-Pierre Dath, Walter Vermeiren
  • Patent number: 7435330
    Abstract: A heavy oil reforming method which reforms a heavy oil to give a fuel suitable for a gas turbine, eliminates sulfur and vanadium, i.e., harmful components, from a heavy oil, and enables almost all the hydrocarbons in the heavy oil to be used in gas turbine combustion; an apparatus therefor; and a gas turbine power generation system using the reformed heavy oil as fuel is disclosed. The method includes reacting a heavy oil with supercritical water and then with a scavenger for sulfur and vanadium to eliminate sulfur and vanadium from the heavy oil.
    Type: Grant
    Filed: October 7, 2003
    Date of Patent: October 14, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Nobuyuki Hokari, Tomohiko Miyamoto, Hirokazu Takahashi, Atsushi Morihara, Hiromi Koizumi
  • Publication number: 20080223755
    Abstract: The invention concerns a process for slurry phase hydroconversion of liquid sulphur-containing heavy hydrocarbon feeds, in the presence of hydrogen and in the presence of a solid catalyst, said catalyst being obtained from an aqueous solution formed from at least one cobalt and/or nickel salt of at least one heteropolyanion combining molybdenum and cobalt or molybdenum and nickel in its structure. The aqueous solution is introduced into a hydrocarbon oil containing asphaltenes and/or resins to form an emulsion and said emulsion is then injected upstream or directly into the slurry reactor.
    Type: Application
    Filed: March 14, 2008
    Publication date: September 18, 2008
    Inventors: Magalie Roy-Auberger, Denis GUILLAUME, Karin MARCHAND
  • Publication number: 20080142412
    Abstract: An alkylation process comprising contacting a first hydrocarbon feed comprising at least one olefin having from 2 to 6 carbon atoms and a second hydrocarbon feed comprising at least one isoparaffin having from 3 to 6 carbon atoms with a halide-based acidic ionic liquid catalyst under alkylation conditions to produce an alkylate containing an organic halide and contacting at least a portion of the alkylate with a hydrotreating catalyst in the presence of hydrogen under hydrotreating conditions to reduce the concentration of the organic halide is disclosed.
    Type: Application
    Filed: December 12, 2006
    Publication date: June 19, 2008
    Inventors: Michael S. Driver, Gunther Dieckmann
  • Publication number: 20080110427
    Abstract: A catalytic reformer assembly comprising a mixing chamber wherein fuel and air are mixed. The wall of the mixing chamber tapers toward an outlet end. A catalyst bed formed in an annular shape surrounds the outlet end such that the walls of the mixing chamber shield the catalyst from direct exposure to fuel droplets injected into the mixing chamber. The fuel/air mixture flows out of the mixing chamber, then turns and counterflows through the catalyst bed outside the mixing chamber. Hot reformate from the catalyst bed flows in a reformate flow chamber extending along the outer surface of the walls of the mixing chamber, heating the wall surface within the mixing chamber for instantaneous evaporation of injected fuel. A plenum for incoming air surrounds the reformate flow chamber which is also heated thereby.
    Type: Application
    Filed: November 15, 2006
    Publication date: May 15, 2008
    Inventors: Giulio A. Ricci-Ottati, John E. Kirwan
  • Publication number: 20080099373
    Abstract: The reforming of heavy oil with supercritical water or subcritical water is accomplished by mixing together supercritical water, heavy oil, and oxidizing agent, thereby oxidizing vanadium in heavy oil with the oxidizing agent at the time of treatment with supercritical water and separate vanadium oxide. The separated vanadium oxide is removed by the scavenger after treatment with supercritical water. In this way it is possible to solve the long-standing problem with corrosion of turbine blades by vanadium which arises when heavy oil is used as gas turbine fuel.
    Type: Application
    Filed: June 11, 2007
    Publication date: May 1, 2008
    Inventors: Nobuyuki Hokari, Tomohiko Miyamoto, Hirokazu Takahashi, Hiromi Koizumi
  • Publication number: 20080083657
    Abstract: Dewaxing a hydrocarbon feed by isomerizing feed with catalyst comprising small crystallite molecular sieve having MTT framework, the catalyst containing at least one metal selected from the group consisting of Ca, Cr, Mg, La, Na, Pr, Sr, K and Nd, and at least one Group VIII metal. A dewaxing method to produce products boiling at 343° C. (650° F.) or higher with low pour points and high viscosity indexes wherein the line fit to the chart of the pour points and the viscosity indexes has a slope of zero or less. A dewaxing process, comprising isomerization dewaxing feed with a viscosity at 100° C. of 2.5 mm2/s or greater over a metal-modified molecular sieve to produce products with low pour points and high viscosity indexes; the line fit to the chart of the pour points and the viscosity indexes has a slope of zero or less; and wherein the yield of products is high.
    Type: Application
    Filed: October 2, 2007
    Publication date: April 10, 2008
    Inventors: Stacey I. Zones, Kamala Krishna
  • Patent number: 7351325
    Abstract: A process and apparatus for catalytic reforming of hydrocarbons wherein the effluent stream from the first and/or second reactor of a reforming train with several reactors in series is cooled in a multistage process to remove aromatic compounds in the reacting medium prior to being reheated and returned to subsequent reactors for additional reaction to occur. The partial removal of aromatic compounds enhances the driving force for the conversion of paraffins and naphthenes by making the equilibrium more favorable to such conversion. The removal of aromatic compounds reduces the size of downstream process equipment thereby reducing capital costs and lowering energy usage. It is possible to add additional feed streams to reactors downstream of the intermediate reactor effluent cooling step thereby making the process unit capable of processing more feedstock to produce more product.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: April 1, 2008
    Assignee: Saudi Arabian Oil Company
    Inventor: Emigdio Jesus Salmon
  • Patent number: 7335295
    Abstract: There is provided a coated zeolite catalyst in which the accessibility of the acid sites on the external surfaces of the zeolite is controlled and a process for converting hydrocarbons utilizing the coated zeolite catalyst. The zeolite catalyst comprises core crystals of a first zeolite and a discontinuous layer of smaller size second crystals of a second zeolite which cover at least a portion of the external surface of the first crystals The coated zeolite catalyst finds particular application in hydrocarbon conversion processes where catalyst activity in combination with zeolite structure are important for reaction selectivity, e.g., catalytic cracking, alkylation, disproportional of toluene, isomerization, and transalkylation reactions.
    Type: Grant
    Filed: June 7, 2004
    Date of Patent: February 26, 2008
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jannetje Maatje van den Berge, Gary David Mohr, Kenneth Ray Clem, Wilfried Jozef Mortier, Machteld Maria Mertens, Michael C. Bradford
  • Publication number: 20080029435
    Abstract: A method of rejuvenating a deactivated molecular sieve catalyst, deactivated by use in an olefin oligomerization or aromatics alkylation process, which method comprises contacting the deactivated catalyst with a stream of rejuvenation gas comprising a hydrocarbon product fraction from the process at an elevated temperature and pressure for a time sufficient to effect an increase in catalytic activity of the deactivated catalyst.
    Type: Application
    Filed: June 19, 2007
    Publication date: February 7, 2008
    Applicant: ExxonMobil Research and Engineering Company
    Inventors: Benjamin S. Umansky, Ajit B. Dandekar, Tomas R. Melli, Amanda K. Miller, Ronald D. McGihon
  • Patent number: 7326819
    Abstract: A catalyst and process is disclosed to selectively upgrade a paraffinic feedstock to obtain an isoparaffin-rich product for blending into gasoline. The catalyst comprises a support of a sulfated oxide or hydroxide of a Group IVB (IUPAC 4) metal, a first component of at least one lanthanide element or yttrium component, which is preferably ytterbium, and at least one platinum-group metal component which is preferably platinum.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: February 5, 2008
    Assignee: UOP LLC
    Inventors: Ralph D. Gillespie, Michelle J. Cohn
  • Publication number: 20070284284
    Abstract: The present invention relates to new crystalline molecular sieve SSZ-75 prepared using a tetramethylene-1,4-bis-(N-methylpyrrolidinium)dication as a structure-directing agent, and its use in catalysts for hydrocarbon conversion reactions.
    Type: Application
    Filed: June 1, 2007
    Publication date: December 13, 2007
    Inventors: Stacey I. Zones, Allen W. Burton, Theodorus Ludovicus Michael Maesen, Berend Smit, Edith Beerdsen
  • Patent number: 7285205
    Abstract: In a regenerative reforming facility using a series of moving beds, a direct supply of regenerated catalyst, optionally reduced is passed into at least two of the reactors of the series. Spent catalysts from different reactors are passed into a common mixing apparatus so as to provide a homogeneous degree of coke on the spent catalysts which are thereafter passed to a regenerator. The feedstock and the intermediate effluents continue to circulate in succession relative to the reactors. The invention makes it possible in particular to reduce the operating pressure of the units to less than 0.2 MPa.
    Type: Grant
    Filed: March 11, 2004
    Date of Patent: October 23, 2007
    Assignee: Institut Francias du Petrole
    Inventors: Eric Sanchez, Dominique Casanave
  • Publication number: 20070231631
    Abstract: A reformer for a fuel cell system includes a leading segment and a trailing segment. The leading segment includes less reactive catalyst and/or more stabilizing catalyst than the trailing segment. The reformer may be used for reformation of high and low hydrocarbon fuels.
    Type: Application
    Filed: April 2, 2007
    Publication date: October 4, 2007
    Inventor: Swaminathan Venkataraman
  • Patent number: 7264710
    Abstract: The reforming of heavy oil with supercritical water or subcritical water is accomplished by mixing together supercriticai water, heavy oil, and oxidizing agent, thereby oxidizing vanadium in heavy oil with the oxidizing agent at the time of treatment with supercritical water and separate vanadium oxide. The separated vanadium oxide is removed by the scavenger after treatment with supercritical water. In this way it is possible to solve the long-standing problem with corrosion of turbine blades by vanadium which arises when heavy oil is used as gas turbine fuel.
    Type: Grant
    Filed: September 18, 2002
    Date of Patent: September 4, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Nobuyuki Hokari, Tomohiko Miyamoto, Hirokazu Takahashi, Hiromi Koizumi
  • Patent number: 7241376
    Abstract: A process for contacting a bed of particulate material, usually catalyst, with a transverse flow of fluid is disclosed. The particulate material moves or is prevented from not moving, while the fluid passes through the bed at a rate greater than the stagnant bed pinning flow rate. This invention is applicable to hydrocarbon conversion processes and allows for higher fluid throughput rates compared to prior art processes.
    Type: Grant
    Filed: November 8, 2004
    Date of Patent: July 10, 2007
    Assignee: UOP LLC
    Inventors: Weikai Gu, Paul A. Sechrist
  • Patent number: 7232516
    Abstract: A desulfurization system employing a system of fluidizable and circulatable solid particles to desulfurize a hydrocarbon-containing fluid in a fluidized bed reactor. The solid particulate system includes solid sorbent particles operable to remove sulfur from the hydrocarbon-containing fluid stream and solid catalyst particles operable to enhance the octane of the resulting desulfurized hydrocarbon-containing fluid stream. The solid particulate system can be circulated between a reactor, regenerator, and reducer, to thereby allow for substantially continuous desulfurization in the reactor.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: June 19, 2007
    Assignee: ConocoPhillips Company
    Inventors: Edward L. Sughure, II., Bobby G. Cockrell, Glenn W. Dodwell, Brent J. Bertus
  • Patent number: 7179367
    Abstract: A process for reforming wherein ethylbenzene formed during the reforming is converted to xylenes. The process is carried out by reforming a feed containing precursors of ethylbenzene with a reforming catalyst under conditions effective to reform said feed; wherein the reforming catalyst is contained in a reactor which contains a second catalyst effective under said conditions to convert ethylbenzene to xylenes. The resulting product contains reduced amounts of ethylbenzene and increased amounts of xylenes.
    Type: Grant
    Filed: July 1, 2003
    Date of Patent: February 20, 2007
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Xiaobing Feng, Jain-Kai Hung, Gary D. Mohr, Krishna Kulai Rao
  • Patent number: 7172702
    Abstract: Wastewater, particularly black water and/or gray water, is used, for example in an aircraft, for processing fuels used in a high temperature fuel cell. For this purpose a liquid hydrocarbon fuel is used for producing an emulsion for use as fuel in the high temperature fuel cell. The liquid hydrocarbon fuel is preferably kerosene. The liquid hydrocarbon fuel is first emulsified with the wastewater which is first passed through a treatment such as filtering, reverse osmosis, or any other cleaning treatment that makes the wastewater suitable for emulsifying the liquid hydrocarbon fuel. The emulsion is then supplied as fuel to the high temperature fuel cell. Thus, smaller and hence lighter storage facilities for the wastewater can be used.
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: February 6, 2007
    Assignee: Airbus Deutschland GmbH
    Inventors: Claus Hoffjann, Hans-Juergen Heinrich
  • Patent number: 7151199
    Abstract: Hydrocarbon or oxygenate conversion process in which a feedstock is contacted with a non zeolitic molecular sieve which has been treated to remove most, if not all, of the halogen contained in the catalyst. The halogen may be removed by one of several methods. One method includes heating the catalyst in a low moisture environment, followed by contacting the heated catalyst with air and/or steam. Another method includes steam-treating the catalyst at a temperature from 400° C. to 1000° C. The hydrocarbon or oxygenate conversion processes include the conversion of oxygenates to olefins, the conversion of oxygenates and ammonia to alkylamines, the conversion of oxygenates and aromatic compounds to alkylated aromatic compounds, cracking and dewaxing.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: December 19, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Luc Roger Marc Martens, Stephen N. Vaughn, Albert Edward Schweizer, John K. Pierce, Shun Chong Fung
  • Patent number: 7132042
    Abstract: Dewaxed fuel and lubricant base stocks are made by (a) producing a synthesis gas from natural gas, (b) reacting the H2 and CO in the gas in the presence of a cobalt Fischer-Tropsch catalyst, at reaction conditions effective to synthesize a waxy hydrocarbon feed boiling in the fuel and lubricant oil ranges, which is hydrodewaxed in a first stage to produce a dewaxed fuel and a partially dewaxed lubricant fraction. The partially dewaxed lubricant fraction is separated into heavy and lower boiling fractions each of which is separately hydrodewaxed, to produce lubricant base stocks. A hydrodewaxing catalyst comprising a hydrogenation component, binder and solid acid component used to hydrodewax at least one, and preferably at least two of the waxy feed and partially dewaxed heavy and lower boiling lubricant fractions.
    Type: Grant
    Filed: October 8, 2002
    Date of Patent: November 7, 2006
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: William Berlin Genetti, Adeana Richelle Bishop, Nancy Marie Page, Gregg Johnston Howsmon, Loren Leon Ansell, Jack Wayne Johnson
  • Patent number: 7115198
    Abstract: A novel crystalline aluminophosphate and metalloaluminophosphate of the molecular sieve type, denominated SSZ-51, is prepared by hydrothermal synthesis from reactive sources of aluminum and phosphorus, fluorine and an organic templating agent, 4-dimethylaminopyridine. SSZ-51 is useful in catalysts for, e.g., hydrocarbon conversion reactions.
    Type: Grant
    Filed: October 22, 2003
    Date of Patent: October 3, 2006
    Assignee: Chevron U.S.A. Inc.
    Inventors: Stacey I. Zones, Thomas V. Harris
  • Patent number: 7083714
    Abstract: The present invention relates to new crystalline molecular sieve SSZ-65 prepared using 1-[1-(4-chlorophenyl)-cyclopropylmethyl]-1-ethyl-pyrrolidinium or 1-ethyl-1-(1-phenyl-cyclopropylmethyl)-pyrrolidinium cation as a structure-directing agent, methods for synthesizing SSZ-65 and processes employing SSZ-65 in a catalyst.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: August 1, 2006
    Assignee: Chevron U.S.A. Inc.
    Inventor: Saleh Elomari
  • Patent number: 7067052
    Abstract: A process for reforming a hydrocarbon feed containing precursors of ethylbenzene, e.g., C8 isoalkane and/or C8 isoalkene precursors of ethylbenzene, that results in the formation of reduced amounts of ethylbenzene. The process is carried out in a catalytic reforming unit comprised of a plurality of operatively connected reactors comprising at least one lead reforming reactor and a tail reforming reactor. The process is carried out by reforming the feed in at least one lead reactor which contains a first reforming catalyst and a catalyst effective for converting ethylbenzene and further reforming the product of the lead reactor in the tail reactor that contains a second reforming catalyst.
    Type: Grant
    Filed: July 1, 2003
    Date of Patent: June 27, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jain-Kai Hung, Thomas H. Colle, Xiaobing Feng, Gary D. Mohr, Krishna Kulai Rao
  • Patent number: 7011807
    Abstract: Supported reactive catalysts having a controlled coordination structure and methods for their production are disclosed. The supported catalysts of the present invention are useful for the preparation of hydrogen peroxide with high selectivity in addition to other chemical conversion reactions. The supported catalyst comprises catalyst particles having top or outer layer of atoms in which at least a portion of the atoms exhibit a controlled coordination number of 2. The catalyst and methods may be used for the concurrent in situ and ex situ conversion of organic compounds. In addition, a process is provided for catalytically producing hydrogen peroxide from hydrogen and oxygen feeds by contacting them with the catalysts of the invention and a suitable organic liquid solvent having a Solvent Selection Parameter (SSP) between 0.14×10?4 and 5.0×10?4.
    Type: Grant
    Filed: July 14, 2003
    Date of Patent: March 14, 2006
    Assignee: Headwaters Nanokinetix, Inc.
    Inventors: Bing Zhou, Michael Rueter, Sukesh Parasher
  • Patent number: 6974535
    Abstract: A process for producing a lubricating oil basestock having at least 90 wt. % saturates and a VI of at least 105 by selectively hydroconverting a raffinate from a solvent extraction zone in a two step hydroconversion zone followed by a hydrofinishing zone, and a lubricating oil basestock produced by said process.
    Type: Grant
    Filed: June 26, 2001
    Date of Patent: December 13, 2005
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Ian A. Cody, William J. Murphy, John E. Gallagher, Joseph P. Boyle, Anne M. Zinicola, Christopher J. May, Jeenok T. Kim, John A. Groestch, Sylvain S. Hantzer
  • Patent number: 6900365
    Abstract: A catalytic hydrodealkylation/reforming process which comprises contacting a heavy hydrocarbon feedstream under catalytic hydrodealkylation/reforming conditions with a composition comprising borosilicate molecular sieves having a pore size greater than about 5.0 Angstroms and a Constraint Index smaller than about 1.0; further containing a hydrogenation/dehydrogenation component; wherein at least a portion of the heavy hydrocarbon feedstream is converted to a product comprising benzene, toluene, xylenes and ethylbenzene.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: May 31, 2005
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Cong-Yan Chen, Stacey I. Zones, Andrew Rainis, Dennis J. O'Rear
  • Patent number: 6890423
    Abstract: The invention provides distillate fuel blend components with improved seal swell and lubricity properties obtained from Fischer Tropsch products. The blends contain a highly paraffinic distillate fuel component and distillate-boiling alkylcycloparaffins and/or distillate-boiling alkylaromatics. The invention further provides processes for obtaining such blends using the products of Fischer Tropsch processes. Finally, the invention provides methods for improving seal swell and lubricity properties for distillate fuels.
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: May 10, 2005
    Assignee: Chevron U.S.A. Inc.
    Inventor: Dennis J. O'Rear
  • Patent number: 6884340
    Abstract: The use of a novel catalyst in a reforming process is disclosed. The catalyst comprises a refractory inorganic oxide, platinum-group metal, Group IVA(IUPAC 14) metal, indium and lanthanide-series metal. Utilization of this catalyst in the conversion of hydrocarbons, especially in a reforming process, results in significantly improved selectivity to the desired gasoline or aromatics products.
    Type: Grant
    Filed: April 8, 2002
    Date of Patent: April 26, 2005
    Assignee: UOP LLC
    Inventor: Paula L. Bogdan
  • Patent number: 6880635
    Abstract: A coal formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. A portion of a formation may be heated from a plurality of heat sources to a temperature sufficient to allow generation of a first synthesis gas having a low H2 to CO ratio. A second portion of a formation may generate synthesis gas having a H2 to CO ratio greater than the first synthesis gas. A portion of the first synthesis gas may be blended with a portion of the second synthesis gas to produce a blend synthesis gas having a desired H2 to CO ratio.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: April 19, 2005
    Assignee: Shell Oil Company
    Inventors: Harold J. Vinegar, Scott Lee Wellington, Ilya Emil Berchenko, Robert Martijn Van Hardeveld
  • Patent number: 6881323
    Abstract: The present invention relates to new crystalline zeolite SSZ-54 prepared using a templating agent comprising N-isopropyl ethylenediamine, or a mixture of 1-N-isopropyl diethylenetriamine and isobutylamine, and processes employing SSZ-54 in a catalyst.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: April 19, 2005
    Assignee: Chevron U.S.A. Inc.
    Inventor: Stacey Zones