Entire Catalyst Composition Patents (Class 585/313)
  • Patent number: 10131594
    Abstract: The present invention relates to catalyst comprising at least one transition metal selected from Group VIA and Group VITA metals and a support containing a mixture of 0.1 to 60 percent by weight of zeolite, based on total weight of the support, with at least one other inorganic or organic material, wherein the at least one other inorganic or organic material is selected from silicon dioxide, titanium dioxide, zirconium dioxide and activated carbon, preferably silicon dioxide; and a process for olefin metathesis utilizing that catalyst.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: November 20, 2018
    Assignee: SMG Co., Ltd
    Inventors: Kongkiat Suriye, Wuttithep Jareewatchara, Pruphanya Lekngarm, Somboon Chaemchuen, Ketsada Sutthiumporn, Anuwat Nonkhamwong
  • Patent number: 9968899
    Abstract: Apparatuses and methods are disclosed for detecting catalyst transfer pipe plugging in a chemical plant or petrochemical plant or refinery. The catalyst transfer pipe may extend from a reactor to a catalyst collector and enable the flow of catalyst from the reactor to the catalyst collector. Specifically, one or more sensors affixed to a catalyst transfer pipe may collect sensor data for analysis. Based on one or more detected changes in the sensor data outside a range, a data collection platform may send one or more alerts and/or send one or more signals to a control platform to adjust a flow rate, a pressure differential, or perform another action to clear a developing catalyst buildup and thereby attempt to avoid a catalyst transfer pipe from becoming plugged.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: May 15, 2018
    Assignee: UOP LLC
    Inventors: Mahesh Kumar Gellaboina, Louis A Lattanzio
  • Patent number: 9505679
    Abstract: The invention relates to a process for converting hydrocarbon feeds by thermal steamcracking to at least one olefin-containing product stream comprising at least ethylene and propylene, with at least partial conversion of a first hydrocarbon feed in at least one first cracking furnace (1) and of a second hydrocarbon feed in at least one second cracking furnace (2). According to the invention, the second hydrocarbon feed is converted in the second cracking furnace (2) with cracking conditions that lead to a ratio of propylene to ethylene of 0.7 to 1.6 kg/kg, and the first hydrocarbon feed is converted in the first cracking furnace (1) with cracking conditions that lead to a ratio of propylene to ethylene of 0.25 to 0.85 kg/kg at the cracking furnace exit, the value for the ratio of propylene to ethylene for the second hydrocarbon feed being above the value for the ratio of propylene to ethylene for the first hydrocarbon feed.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: November 29, 2016
    Assignee: Linde Aktiengesellschaft
    Inventors: Helmut Fritz, Stefanie Walter, Gunther Schmidt
  • Patent number: 9212321
    Abstract: A process for hydrocarbon conversion, comprising: a) stripping or distilling a hydrocarbon effluent from a reactor comprising an ionic liquid catalyst having: a metal halide, and a hydrogen halide or an organic halide into a first and second fraction, and b) recycling at least a portion of the first fraction comprising at least 5 wt % and less than 95 wt % of the hydrogen halide to the reactor. A process comprising: a) stripping or distilling a hydrocarbon effluent from a reactor comprising an ionic liquid catalyst into a first fraction having at least 5 wt % of hydrogen halide and a second fraction having less than 25 wppm hydrogen halide; and b) recycling at least a portion of the first fraction to the reactor to improve the selectivity of products. A process comprising recycling of the catalyst, the first fraction, and a portion of the second fraction that is an isoparaffin to the reactor.
    Type: Grant
    Filed: December 31, 2009
    Date of Patent: December 15, 2015
    Assignee: Chevron U.S.A. Inc.
    Inventors: Hye-Kyung Timken, Christine Phillips, Robert F. Cleverdon
  • Patent number: 9163183
    Abstract: The present disclosure is directed to a method and system of removing solubilized metals from a Fischer-Tropsch (FT) reactor product. The FT reactor product is contacted with a chelating agent to form metal complexes. The FT reactor product containing metal complexes are subjected to centrifugal separation to form a heavy phase and a light phase containing less than 500 wppb solubilized metals.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: October 20, 2015
    Assignee: REG SYNTHETIC FUELS, LLC
    Inventor: Peter Havlik
  • Publication number: 20150119616
    Abstract: A method for converting oxygenates to olefins comprising: a) feeding an oxygenate containing stream to a reactor; b) contacting the oxygenate containing stream with a molecular sieve catalyst under oxygenate-to-olefin conversion conditions to form products wherein the catalyst becomes deactivated due to the formation of coke on the catalyst; c) removing the products from the reactor; d) removing at least a portion of the catalyst from the reactor and sending the catalyst to a catalyst regenerator; e) contacting the catalyst with a regeneration medium and a fuel to combust at least a portion of the coke and to heat the catalyst; and f) returning at least a portion of the heated catalyst to the reactor wherein the fuel is a light hydrocarbon gas that has been at least partially diluted with nitrogen and/or air.
    Type: Application
    Filed: October 29, 2014
    Publication date: April 30, 2015
    Inventors: Richard Addison SANBORN, Sivakumar SADASIVAN VIJAYAKUMARI, Leslie Andrew CHEWTER, Ye-Mon CHEN
  • Patent number: 9012708
    Abstract: A process is disclosed for making styrene by converting methanol to formaldehyde in a reactor then reacting the formaldehyde with toluene to form styrene in a separate reactor.
    Type: Grant
    Filed: June 9, 2014
    Date of Patent: April 21, 2015
    Assignee: Fina Technology, Inc.
    Inventors: James R. Butler, Joseph E. Pelati
  • Patent number: 8957270
    Abstract: A process for producing a base for a fuel from a C2 ethanol feedstock, by a first stage for oligomerization of the feedstock into a hydrocarbon effluent that contains a mixture of olefins for the most part having between 4 and 30 carbons, and contains a C10-C24 fraction that has a mean linearity that is greater than 60%, in the presence of a homogeneous catalytic system that contains a metal precursor of titanium, zirconium, hafnium, nickel and/or iron, a second stage for oligomerization of a portion of the effluent that is obtained from stage a), into a hydrocarbon effluent that contains a mixture of olefins for the most part having between 4 and 30 carbon atoms, and containing a C10-C24 fraction that has a mean linearity that is less than 50%, in the presence of a homogeneous catalytic system.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: February 17, 2015
    Assignee: IFP Energies Nouvelles
    Inventors: Sandrine Berard, Stephane Harry, Natacha Touchais, Lionel Magna, Helene Olivier-Bourbigou, Cedrik Popelin, David Proriol, Lucien Saussine
  • Publication number: 20150038751
    Abstract: The present disclosure discloses bimetal catalysts.
    Type: Application
    Filed: March 28, 2013
    Publication date: February 5, 2015
    Applicant: Wayne State University
    Inventors: K.Y. Simon Ng, Steve O. Salley, Huali Wang
  • Patent number: 8796498
    Abstract: A process is disclosed for making styrene by converting methanol to formaldehyde in a reactor then reacting the formaldehyde with toluene to form styrene in a separate reactor.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: August 5, 2014
    Assignee: Fina Technology, Inc.
    Inventors: James R. Butler, Joseph E. Pelati
  • Patent number: 8791312
    Abstract: A process for upgrading hydrocarbons comprising removal of C5 hydrocarbons from a feedstock, metathesizing said C5 hydrocarbons to C6+ and C4? hydrocarbons, and upgrading said C4? hydrocarbons is disclosed absent any dehydrogenation.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: July 29, 2014
    Assignee: Phillips 66 Company
    Inventors: Bruce B. Randolph, Bruce Welch, Roland Schmidt, Edward L. Sughrue, II
  • Patent number: 8686205
    Abstract: A process is disclosed for making styrene by converting methanol to formaldehyde in a reactor then reacting the formaldehyde with toluene to form styrene in a separate reactor.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: April 1, 2014
    Assignee: Fina Technology, Inc.
    Inventors: James R. Butler, Joseph E. Pelati
  • Patent number: 8608941
    Abstract: A reforming process includes integrating catalytic cracking product naphtha dehydrogenation and naphtha from a hydrocracking zone and feeding them to a dehydrogenation zone. The dehydrogenation zone includes a first portion of reforming catalyst from a catalyst regenerator that moves downward through the dehydrogenation zone. A product stream from the dehydrogenation zone flows to an aromatics unit and is separated into an aromatic-rich extract and a raffinate. Straight run naphtha and the raffinate are introduced to a first reforming zone that includes a second portion of reforming catalyst. The reforming catalyst moves through the first reforming zone then is removed from the bottom of each of the first reforming zone and the dehydrogenation zone and is fed to a second reforming zone. An effluent from the first reforming zone is fed to a plurality of reforming zones. The reforming catalyst moves downward through the multiple reforming zones then to a regenerator.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: December 17, 2013
    Assignee: UOP LLC
    Inventors: Robert Haizmann, Laura E. Leonard
  • Publication number: 20130137908
    Abstract: The present invention relates to a method of producing C4 olefins, from a feed of C4 monohydric alcohol, in which a reaction of dehydration of the monohydric alcohol to at least one olefin, and a reaction of skeletal isomerization of at least one of the olefins produced in one and the same reaction vessel, are carried out in the presence of an alumina-based catalyst with adapted porosity.
    Type: Application
    Filed: May 27, 2011
    Publication date: May 30, 2013
    Applicant: IFP ENERGIES NOUVELLES
    Inventors: Vincent Coupard, Sylvie Maury, Karine Surla
  • Patent number: 8373013
    Abstract: A process for combining the catalytic conversion of organic oxygenates and the catalytic conversion of hydrocarbons: an organic oxygenate feedstock is contacted with a Y-zeolite containing catalyst to produce a reaction stream, and a coked catalyst and a product stream are obtained after separating the reaction stream; a hydrocarbon feedstock is contacted with a Y-zeolite containing catalyst to produce a reaction stream, a spent catalyst and a reaction oil vapor are obtained after separating the reaction stream, and the reaction oil vapor is further separated to give the products such as gas, gasoline and the like; a part or all of the coked catalyst and a part or all of the spent catalyst enter the regenerator for the coke-burning regeneration, and the regenerated catalyst is divided into two portions, wherein one portion returns to be contacted with the hydrocarbon feedstock, and the other portion, after cooling, returns to be contacted with the organic oxygenate feedstock.
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: February 12, 2013
    Assignees: China Petroleum & Chemical Corporation, Research Institute of Petroleum Processing, SINOPEC
    Inventors: Wenhua Xie, Genquan Zhu, Qiang Fu, Zhiguo Wu, Shaobing Yu, Yihua Yang, Qiang Liu, Zhiqiang Qiao, Xuhong Mu, Chaogang Xie, Yibin Luo, Jiushun Zhang, Xingtian Shu
  • Patent number: 8273930
    Abstract: A process for producing ethylene from ethanol combining the catalytic conversion of hydrocarbons: an ethanol feedstock is contacted with a Y-zeolite containing catalyst to give a product stream, and a coked catalyst and an target product of ethylene are obtained after separating the reaction stream; a hydrocarbon feedstock is contacted with a Y-zeolite containing catalyst to give a product stream, a spent catalyst and an oil vapor are obtained after separating the reaction stream, and the oil vapor is further separated to give the products such as gas, gasoline and the like; a part or all of the coked catalyst and a part or all of the spent catalyst enter the regenerator for the coke-burning regeneration, and the regenerated catalyst is divided into two portions, wherein one portion returns to be contacted with the hydrocarbon feedstock, and the other portion, after cooling, returns to be contacted with ethanol feedstock.
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: September 25, 2012
    Assignees: China Petroleum & Chemical Corporation, Research Institute of Petroleum Processing, Sinopec
    Inventors: Zhiguo Wu, Wenhua Xie, Chaogang Xie, Qiang Liu, Xuhong Mu, Jiushun Zhang, Yibin Luo, Xingtian Shu, Chenghan Yan
  • Publication number: 20120157732
    Abstract: The present disclosure relates to methods for converting biomass-derived streams of hydrocarbon diols into products suitable for use as a biomass-derived fuel additive. These methods involve the condensation of diols comprising five or six carbon atoms to form condensation products containing at least ten carbon atoms. The remaining hydroxyl functional groups of the condensation products are optionally modified to decrease overall polarity of the products, and improve miscibility with liquid hydrocarbon mixtures.
    Type: Application
    Filed: December 6, 2011
    Publication date: June 21, 2012
    Applicant: CONOCOPHILLIPS COMPANY
    Inventor: Matthew J. TRUITT
  • Publication number: 20120108872
    Abstract: A process for increasing the production of monoalkylbenzenes is presented. The process includes utilizing a transalkylation process to convert dialkylbenzenes to monoalkylbenzenes. The transalkylation process recycles a portion of the effluent stream from the transalkylation reactor back to the feed of the transalkylation reactor. The recycled dialkylbenzenes and a portion of the recycled benzene are converted to monoalkylbenzenes.
    Type: Application
    Filed: November 2, 2010
    Publication date: May 3, 2012
    Applicant: UOP LLC
    Inventors: Stephen W. Sohn, Mark G. Riley
  • Publication number: 20110282119
    Abstract: This invention describes a process for the production of bases for fuels (such as diesel and/or kerosene) from a C2 ethanol feedstock, whereby said process comprises at least a first stage for oligomerization of said feedstock into at least one hydrocarbon effluent that comprises a mixture of olefins that for the most part have between 4 and 30 carbons, whereby said olefin mixture comprises a C10-C24 fraction that has a mean linearity that is greater than 60%, in the presence of a homogeneous catalytic system that comprises at least one metal precursor that is selected from among the group that is formed by titanium, zirconium, hafnium, nickel and iron, taken by themselves or in a mixture, a second stage for oligomerization of at least a portion of the effluent that is obtained from stage a), into at least one hydrocarbon effluent that comprises a mixture of olefins that for the most part have between 4 and 30 carbon atoms, with said olefin mixture comprising a C10-C24 fraction that has a mean linearity that
    Type: Application
    Filed: May 6, 2011
    Publication date: November 17, 2011
    Applicant: IFP ENERGIES NOUVELLES
    Inventors: Sandrine BERARD, Stephane Harry, Natacha Touchais, Lionel Magna, Helene Olivier-Bourbigou, Cedrik Popelin, David Proriol, Lucien Saussine
  • Publication number: 20110263915
    Abstract: A process for upgrading hydrocarbons comprising removal of C5 hydrocarbons from a feedstock, metathesizing said C5 hydrocarbons to C6+ and C4? hydrocarbons, and upgrading said C4? hydrocarbons is disclosed absent any dehydrogenation.
    Type: Application
    Filed: June 9, 2011
    Publication date: October 27, 2011
    Applicant: CONOCOPHILLIPS COMPANY
    Inventors: Bruce B. Randolph, Bruce Welch, Roland Schmidt, Edward L. Sughrue, II
  • Publication number: 20110257447
    Abstract: A process for producing hydrocarbons from microbial lipids is provided by contacting a feed comprising microbial lipids with a hydrogenation catalyst and hydrogen at a temperature in the range of from 250 to 380° C. and a total pressure in the range of from 20 to 160 bar (absolute), to obtain an effluent comprising paraffinic hydrocarbons and water; optionally separating a liquid stream rich in paraffinic hydrocarbons from the effluent; contacting the paraffinic hydrocarbons in the liquid stream rich in paraffinic hydrocarbons or the effluent comprising paraffinic hydrocarbons by contacting hydrogen and the liquid stream with hydroisomerisation catalyst at a temperature in the range of from 280 to 450° C. and a total pressure in the range of from 20 to 160 bar (absolute); and separating at least one product fraction from the product stream obtained, wherein the hydrogenation catalyst and/or the hydroisomerisation catalyst comprises a sulfided hydrogenation catalyst.
    Type: Application
    Filed: December 17, 2010
    Publication date: October 20, 2011
    Inventors: Carolina Botella-Franco, Hans De Lang, Lavanya Meesala, Argi Joachim Antonio Moppi, Colin John Schaverien
  • Publication number: 20110245543
    Abstract: Processes and reactor systems are provided for the conversion of oxygenated hydrocarbons to hydrocarbons, ketones and alcohols useful as liquid fuels, such as gasoline, jet fuel or diesel fuel, and industrial chemicals. The process involves the conversion of mono-oxygenated hydrocarbons, such as alcohols, ketones, aldehydes, furans, carboxylic acids, diols, triols, and/or other polyols, to C4+ hydrocarbons, alcohols and/or ketones, by condensation. The oxygenated hydrocarbons may originate from any source, but are preferably derived from biomass.
    Type: Application
    Filed: June 17, 2011
    Publication date: October 6, 2011
    Applicant: Virent Energy Systems, Inc.
    Inventors: Randy D. Cortright, Paul G. Blommel
  • Publication number: 20110152590
    Abstract: Systems and processes for the alkylation of a hydrocarbon are provided that utilize a plurality of moving bed radial flow reactors. An olefin injection point can be provided prior to each reactor by providing a mixer that mixes olefin with a hydrocarbon feed, or with the effluent stream from an upstream reactor, to produce a reactor feed stream. Catalyst can be provided from the reaction zone of one reactor to the reaction zone of a downstream reactor through catalyst transfer pipes, and can be regenerated after passing through the reaction zones of the reactors. The moving bed radial flow reactors can be stacked in one or more reactor stacks.
    Type: Application
    Filed: December 2, 2010
    Publication date: June 23, 2011
    Applicant: UOP LLC
    Inventors: Clayton C. Sadler, Mary Jo Wier, Laurence O. Stine, Christopher Naunheimer
  • Publication number: 20110152591
    Abstract: Systems and processes for hydrocarbon conversion are provided that utilize a plurality of moving bed reactors. The reactors may be moving bed radial flow reactors. Optional mixers that mix a portion of a second hydrocarbon feed with the effluent stream from an upstream reactor, to produce reactor feed streams may be employed, and the reactor feed streams may be introduced at injection points prior to each reactor. Catalyst can be provided from the reaction zone of one reactor to the reaction zone of a downstream reactor through catalyst transfer pipes, and can be regenerated after passing through the reaction zones of the reactors. The moving bed reactors can be stacked in one or more reactor stacks.
    Type: Application
    Filed: December 2, 2010
    Publication date: June 23, 2011
    Applicant: UOP LLC
    Inventors: Clayton C. Sadler, Mary Jo Wier, Laurence O. Stine, Christopher Naunheimer
  • Publication number: 20110046424
    Abstract: A process for the dehydrogenation of a paraffinic hydrocarbon compound, such as an alkane or alkylaromatic hydrocarbon compound to produce an unsaturated hydrocarbon compound, such as an olefin or vinyl aromatic compound or mixture thereof, in which a dehydrogenation catalyst contacts gaseous reactant hydrocarbons in a reactor at dehydrogenation conditions.
    Type: Application
    Filed: November 5, 2010
    Publication date: February 24, 2011
    Inventors: Matthew T. Pretz, Susan B. Domke, William M. Castor, Simon J. Hamper
  • Publication number: 20110034647
    Abstract: A system comprising a riser reactor comprising a gas oil feedstock and a first catalyst under catalytic cracking conditions to yield a riser reactor product comprising a cracked gas oil product and a first used catalyst; an intermediate reactor comprising at least a portion of the cracked gas oil product, a raffinate stream, and a second catalyst under high severity conditions to yield a cracked intermediate product and a second used catalyst; and a recycle conduit to send at least a portion of the cracked gas oil product to the riser reactor.
    Type: Application
    Filed: November 20, 2008
    Publication date: February 10, 2011
    Inventors: Weijian Mo, George A. Hadjigeorge
  • Publication number: 20110014109
    Abstract: Flow deflector that is capable of changing the flow direction of a fluid during passage through a duct. The duct is formed by an inner and outer duct, which creates an annular region in the duct. The flow deflector forces the fluid passing through the annular region of the duct to flow inside the inner duct, while the fluid passing through the inner duct is forced to flow through the annular region. Reactor tubes for catalytic reactors are formed by assembling tubes comprising said flow deflector and having a catalyst arranged in the inner tube.
    Type: Application
    Filed: March 5, 2009
    Publication date: January 20, 2011
    Inventors: Jesper Norsk, Esben Lauge Sørensen, Niklas Jakobsson
  • Publication number: 20100268006
    Abstract: A process for polymerising or oligomerising a hydrocarbon includes feeding a liquid hydrocarbon reactant and a liquid evaporative cooling medium into a bulk liquid phase which includes polymeric or oligomeric product admixed with a catalyst, and allowing at least a portion of the liquid hydrocarbon reactant and the liquid evaporative cooling medium to vapourise to form bubbles rising through the bulk liquid phase, with the hydrocarbon reactant polymerising or oligomerising to form the polymeric or oligomeric product and with the evaporation of both the liquid hydrocarbon reactant and the liquid evaporative cooling medium effecting heat removal from the bulk liquid phase. Gaseous components are withdrawn from a head space, cooled and separated. Condensed hydrocarbon reactant and condensed cooling medium are recycled to the bulk liquid phase.
    Type: Application
    Filed: October 29, 2008
    Publication date: October 21, 2010
    Applicant: SASOL TECHNOLOGY (PROPRIETARY) LIMITED
    Inventor: Johannes Jochemus Gildenhuys
  • Publication number: 20100125159
    Abstract: Moving bed hydrocarbon conversion processes are provided for contacting a catalyst moving downward through a reaction zone with a hydrocarbon feed, withdrawing the catalyst from the reaction zone and conveying the catalyst to a regeneration zone wherein the catalyst moves downward. The catalyst is withdrawn from the regeneration zone and passed downward to an upper zone of a particle transfer apparatus wherein the transfer of catalyst from the upper zone through an intermediate zone to a lower zone is regulated by varying the pressure of the intermediate zone and the flow rate of gas passing through the valveless conduits. A container within the second zone is in catalyst communication with a valveless conduit and provides more consistent catalyst flows. The catalyst from the lower zone of the particle transfer apparatus is conveyed to the reactions zone.
    Type: Application
    Filed: November 19, 2008
    Publication date: May 20, 2010
    Inventors: Christopher Naunheimer, Paul A. Sechrist
  • Publication number: 20100076236
    Abstract: Process for producing paraffinic hydrocarbons, the process comprising the following steps: (a) contacting hydrogen and a feedstock comprising triglycerides, diglycerides, monoglycerides and/or fatty acids with a hydrogenation catalyst under hydro-deoxygenation conditions; and (b) contacting the whole effluent of step (a) with a hydroprocessing catalyst comprising sulphided Ni and sulphided W or Mo as hydrogenation components on a carrier comprising amorphous silica-alumina and/or a zeolitic compound under hydro-isomerisation conditions.
    Type: Application
    Filed: February 20, 2008
    Publication date: March 25, 2010
    Inventors: Auke Antoinette Van Heuzen, Hans De Lang, Patrick Moureaux, Donald Reinalda, Marcello Stefano Rigutto
  • Patent number: 7678954
    Abstract: In a process for producing a hydrocarbon composition, a feed comprising at least one C3 to C8 olefin and an olefinic recycle stream rich in C9? hydrocarbons is contacted with a crystalline molecular sieve catalyst having an average crystal size no greater than 0.05 micron and an alpha value between about 100 and about 600 in at least one reaction zone under olefin oligomerization conditions including an inlet temperature between about 150° C. and about 350° C., a pressure of at least 2,860 kPa and a recycle to feed weight ratio of about 0.1 to about 3.0. The contacting produces an oligomerization effluent stream, which is separated into at least a hydrocarbon product stream rich in C9+ hydrocarbons and the olefinic recycle stream.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: March 16, 2010
    Assignee: ExxonMobil Chemical Patents, Inc.
    Inventors: Keith H. Kuechler, Stephen Harold Brown, Helge Jaensch, Georges M. Mathys, Shifang Luo, Jane C. Cheng
  • Publication number: 20090099398
    Abstract: A process is presented for the production of light olefins from a paraffin stream comprising pentanes.
    Type: Application
    Filed: October 16, 2007
    Publication date: April 16, 2009
    Inventors: David A Wegerer, Stephen M. Casey
  • Patent number: 7411101
    Abstract: A process for producing a monoalkylation aromatic product, such as ethylbenzene and cumene, utilizing an alkylation reactor zone and a transalkylation zone in series or a combined alkylation and transkylation reactor zone.
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: August 12, 2008
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Shiou-Shan Chen, Henry Hwang
  • Patent number: 7268265
    Abstract: The present invention relates to a process and apparatus for the production of light olefins comprising olefins having from 2 to 3 carbon atoms per molecule from a feedstock containing heavier olefins. An intermediate cut from a fractionation column is used as olefinic feed to an olefin cracking process preferably after undergoing selective hydrogenation of diolefins. In one embodiment, a liquid side draw from a fractionation column is selectively hydrogenated and then returned to the fractionation column from which a vapor side draw containing olefins is cracked in the olefin cracking reactor.
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: September 11, 2007
    Assignee: UOP LLC
    Inventors: Douglas G. Stewart, Joseph E. Zimmermann, Angelo P. Furfaro, Bipin V. Vora
  • Patent number: 6646172
    Abstract: A multistage process for preparing propene, in which the first stage is the reaction of 1-butene, 2-butene and isobutene to give propene, 2-pentene and 2-methyl-2-butene in the presence of a metathesis catalyst comprising at least one compound of a metal of transition group VIb, VIIb or VIII of the Periodic Table of the Elements; the second stage is separation of the propene and 2-pentene/2-methyl-2-butene formed; the third stage is reaction of the 2-pentene and 2-methyl-2-butene with ethehe to give propene, 1-butene and isobutene in the presence of a metathesis catalyst comprising at least one compound of a metal of transition group VIb, VIIb or VIII of the Periodic Table of the Elements; the fourth stage is separation of the propene and 1-butene/isobutene formed and returning the 1-butene and isobutene formed to the first stage.
    Type: Grant
    Filed: October 8, 1998
    Date of Patent: November 11, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Schwab, Michael Schulz
  • Patent number: 6444868
    Abstract: A method for converting heavy olefins present in a product stream exiting a first reaction zone into light olefins and carbonaceous deposits on a catalyst without separation of the heavy olefins from the product stream exiting the first reaction zone. The method comprises creating the product stream exiting the first reaction zone, the product stream exiting the first reaction zone comprising the heavy olefins, moving the product stream exiting the first reaction zone to a second reaction zone without separation of the heavy olefins from the product stream exiting the first reaction zone, and contacting the product stream exiting the first reaction zone with the catalyst under conditions effective to form the light olefins, the contacting causing the carbonaceous deposits to form on at least a portion of the catalyst.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: September 3, 2002
    Assignee: Exxon Mobil Chemical Patents Inc.
    Inventors: Stephen N. Vaughn, Peter G. Ham, Keith H. Kuechler
  • Patent number: 6433240
    Abstract: Propene and, if desired, 1-butene are prepared by first reacting 1-butene and 2-butene to give propene and 2-pentene in the presence of a metathesis catalyst containing at least one compound of a metal of transition group VIb, VIIb or VIII of the Periodic Table of the Elements. The propene and 2-pentene formed are subsequently separated, and the 2-pentene is then reacted to give propene and 1-butene in the presence of a metathesis catalyst containing at least one compound of a metal of transition group VIb, VIIb or VIII. The propene and 1-butene formed are subsequently separated, and at least some of the 1-butene is discharged or at least partly isomerized to give 2-butene in the presence of an isomerization catalyst. Undischarged 1-butene and the 2-butene formed are subsequently returned to the initial reaction step, together with that part of the C4 fraction which was not reacted in the initial reaction step.
    Type: Grant
    Filed: February 1, 1999
    Date of Patent: August 13, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Schwab, Boris Breitscheidel, Carsten Oost, Ralf Schulz, Michael Schulz
  • Publication number: 20020052533
    Abstract: A process for producing a purified conjugated diene, comprising a step of isolating a conjugated diene from a petroleum fraction containing the conjugated diene by extractive distillation, the step comprising:
    Type: Application
    Filed: August 24, 1999
    Publication date: May 2, 2002
    Inventors: TAKAKI KOGA, NOBUMASA SHIMOMURA, MASANOBU KANAUCHI
  • Patent number: 6339179
    Abstract: A process for producing alkyl aromatics using a transalkylation reaction zone and an alkylation reaction zone is disclosed. One portion of the transalkylation reaction zone effluent passes to an alkylation reaction zone where an aromatic substrate is alkylated to the desired alkyl aromatic. At least a portion of the alkylation reaction zone effluent and another portion of the transalkylation reaction zone effluent pass to a product recovery zone. This process decreases the capital and operating costs of recycling aromatic substrate to the transalkylation and/or alkylation reaction zone while maintaining operational flexibility. This process is well suited for solid transalkylation and alkylation catalysts. Ethylbenzene and cumene may be produced by this process.
    Type: Grant
    Filed: July 25, 2000
    Date of Patent: January 15, 2002
    Assignee: UOP LLC
    Inventors: Russell C. Schulz, Gregory J. Gajda, Guy B. Woodle, Andrew S. Zarchy
  • Patent number: 6303839
    Abstract: The present invention relates to a process for the production of light olefins comprising olefins having from 2 to 4 carbon atoms per molecule from an oxygenate feedstock. The process comprises passing the oxygenate feedstock to an oxygenate conversion zone containing a metal aluminophosphate catalyst to produce a light olefin stream. A propylene stream and/or mixed butylene is fractionated from said light olefin stream and cracked to enhance the yield of ethylene and propylene products. This combination of light olefin product and propylene and butylene cracking in a riser cracking zone or a separate cracking zone provides flexibility to the process which overcomes the equilibrium limitations of the aluminophosphate catalyst. In addition, the invention provides the advantage of extended catalyst life and greater catalyst stability in the oxygenate conversion zone.
    Type: Grant
    Filed: June 14, 2000
    Date of Patent: October 16, 2001
    Assignee: UOP LLC
    Inventor: Terry L. Marker
  • Patent number: 6271430
    Abstract: The present invention relates to a process for preparing propene by metathesis of olefins.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: August 7, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Schwab, Arthur Höhn
  • Patent number: 6194625
    Abstract: Disclosed are various embodiments for alkylating olefins and isoparaffins in the presence of an acid to reduce and/or control acid consumption or maximize and/or control the octane number of the produced alkylate product. One embodiment includes alkylation by controlling the C3/iso-C5 olefin ratio to reduce acid consumption. Another embodiment includes alkylation of C3 and C5 olefins in separate alkylation zones to maximize alkylate octane number. Even another embodiment includes propylene alkylation followed by C4 and/or C5 olefin alkylation, with the spent propylene acid used in the C4 and/or C5 olefin alkylation. Still another embodiment includes alkylation of C3, C4 and C5 olefins in separate alkylation zones, with the spent propylene acid used in the C4 alkylation, and the spent butylene acid used in the C5 alkylation. Yet another embodiment includes alkylation by controlling the C3/C4 olefin ratio to maximize the octane number of the produced alkylate.
    Type: Grant
    Filed: September 22, 1998
    Date of Patent: February 27, 2001
    Assignee: Stratco, Inc.
    Inventors: David C. Graves, Ken Edward Kranz, James Kevin Millard, Lyle Frederick Albright
  • Patent number: 6150578
    Abstract: A separation arrangement for a cumene process that operates with a relatively wet feed to an alkylation zone and relatively dry feed to a transalkylation zone reduces utilities and capital expenses for the separation and recycle of distinct wet and dry components by using an arrangement that first separates effluent from the trans alkylation and alkylation reaction zone in a benzene column before performing light ends and drying in a downstream depropanizer column. The arrangement uses a portion of the net overhead stream from the benzene column as a wet recycle stream for return to the alkylation reaction zone and sends another portion of the benzene net overhead to the depropanizer to supply a dry benzene recycle for the trans alkylation reaction zone.
    Type: Grant
    Filed: December 7, 1999
    Date of Patent: November 21, 2000
    Assignee: UOP LLC
    Inventors: Perry K. Ho, Russell C. Schulz
  • Patent number: 6121501
    Abstract: A process for producing 2,6-dialkylnaphthalene from a hydrocarbon feedstock that contains at least one component selected from the group consisting of dialkylnaphthalene isomers, monoalkylnaphthalene isomers, polyalkylnaphthalenes, and naphthalene, is provided that includes the following steps:I. separating the hydrocarbon feedstock and/or a dealkylation product fed from step III into a naphthalene fraction, a monoalkylnaphthalene fraction, a dialkylnaphthalene fraction and a remaining products fraction;II. separating and purifying 2,6-dialkylnaphthalene from the dialkylnaphthalene fraction of step I;III. dealkylating the hydrocarbon feedstock and/or the remaining products fraction of step I and feeding the dealkylation product to step I; andIV. alkylating the naphthalene and monoalkylnaphthalene fractions of step I;wherein the hydrocarbon feedstock is fed to step I or step III.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: September 19, 2000
    Assignees: Kabushiki Kaisha Kobe Seiko Sho, Mobil Oil Corporation
    Inventors: Masahiro Motoyuki, Koji Yamamoto, Ajit Vishwanath Sapre, John Paul Mc Williams, Susan Patricia Donnelly
  • Patent number: 6096935
    Abstract: A process for producing alkyl aromatics using a transalkylation reaction zone and an alkylation reaction zone is disclosed. The transalkylation reaction zone effluent passes to the alkylation reaction zone where aromatics in the transalkylation reaction zone effluent are alkylated to the desired alkyl aromatics. This process decreases the capital and operating costs of recycling the aromatics in the transalkylation reaction zone effluent. This process is well suited for solid transalkylation and alkylation catalysts. Ethylbenzene and cumene may be produced by this process.
    Type: Grant
    Filed: July 28, 1998
    Date of Patent: August 1, 2000
    Assignee: UOP LLC
    Inventors: Russell C. Schulz, Gregory J. Gajda
  • Patent number: 6018086
    Abstract: The present invention relates to a process of preparing dialkylnaphthylenes and polyalkylenenaphthyleneates.
    Type: Grant
    Filed: October 10, 1997
    Date of Patent: January 25, 2000
    Assignees: Kabushiki Kaisha Kobe Seiko Sho, Mobil Oil Corporation
    Inventors: Masahiro Motoyuki, Koji Yamamoto, Ajit Vishwanath Sapre, John Paul Mc Williams, Susan Patricia Donnelly
  • Patent number: 6011190
    Abstract: 2,6-Dialkylnaphthalene is prepared from a feedstock comprising naphthalene and an alkylating agent, by a process comprising the steps:(I) transalkylating isomers of dialkylnaphthalene and naphthalene to produce monoalkylnaphthalene and isomers of dialkylnaphthalene;(II) separating the product obtained in step (I) into naphthalene, monoalkylnaphthalene, dialkylnaphthalene and other components;(III) alkylating the monoalkylnaphthalene fraction from step (II) with an alkylating agent to produce dialkylnaphthalene; and(IV) separating 2,6-dialkylnaphthalene from the dialkylnaphthalene fraction in step (II),wherein at least step (I) or step (III) is conducted in the presence of a catalyst having a composition comprising a synthetic zeolite having an X-ray diffraction pattern with an interplanar d-spacing (.ANG.)______________________________________ 12.36 .+-. 0.4 11.03 .+-. 0.2 8.83 .+-. 0.14 6.18 .+-. 0.12 6.00 .+-. 0.10 4.06 .+-. 0.07 3.91 .+-. 0.07 3.42 .+-. 0.06.
    Type: Grant
    Filed: July 2, 1997
    Date of Patent: January 4, 2000
    Assignees: Kabushiki Kaisha Kobe Seiko Sho, Mobil Oil Corporation
    Inventors: Masahiro Motoyuki, Koji Yamamoto, Ajit Vishwanath Sapre, John Paul McWilliams
  • Patent number: 5998684
    Abstract: A separation arrangement for a cumene process that operates with a relatively wet feed to an alkylation zone and relatively dry feed to a transalkylation zone reduces utilities and capital expenses for the separation and recycle of distinct wet and dry components by using an arrangement that first separates effluent from the trans alkylation and alkylation reaction zone in a benzene column before performing light ends and drying in a downstream depropanizer column. The arrangement uses a portion of the net overhead stream from the benzene column as a wet recycle stream for return to the alkylation reaction zone and sends another portion of the benzene net overhead to the depropanizer to supply a dry benzene recycle for the trans alkylation reaction zone.
    Type: Grant
    Filed: November 10, 1997
    Date of Patent: December 7, 1999
    Assignee: UOP LLC
    Inventors: Perry K. Ho, Russell C. Schulz
  • Patent number: RE39222
    Abstract: A process for producing 2,6-dialkylnaphthalene from a hydrocarbon feedstock that contains at least one component selected from the group consisting of dialkylnaphthalene isomers, monoalkylnaphthalene isomers, polyalkylnaphthalenes, and naphthalene, is provided that includes the following steps: I. separating the hydrocarbon feedstock and/or a dealkylation product fed from step III into a naphthalene fraction, a monoalkylnaphthalene fraction, a dialkylnaphthalene fraction and a remaining products fraction; II. separating and purifying 2,6-dialkylnaphthalene from the dialkylnaphthalene fraction of step I; III. dealkylating the hydrocarbon feedstock and/or the remaining products fraction of step I and feeding the dealkylation product to step I; and IV. alkylating the naphthalene and monoalkylnaphthalene fractions of step I; wherein the hydrocarbon feedstock is fed to step I or step III.
    Type: Grant
    Filed: February 19, 2002
    Date of Patent: August 1, 2006
    Assignees: Kobe Steel, Ltd., Mobile Oil Corporation
    Inventors: Masahiro Motoyuki, Koji Yamamoto, Ajit Vishwanath Sapre, John Paul McWilliams, Susan Patricia Donnelly
  • Patent number: RE41136
    Abstract: The present invention relates to a process of preparing dialkylnaphthylenes and polyalkylenenaphthyleneates dialkylnaphthalenes and polyalkylenenaphthalates.
    Type: Grant
    Filed: January 24, 2002
    Date of Patent: February 16, 2010
    Assignees: Kobe Steel, Ltd, ExxonMobil Chemical Patents, Inc.
    Inventors: Masahiro Motoyuki, Koji Yamamoto, Ajit Vishwanath Sapre, John Paul McWilliams, Susan Patricia Donnelly