By Condensation Of Entire Molecules Or Entire Hydrocarbyl Moieties Thereof, E.g., Alkylation, Etc. Patents (Class 585/446)
  • Patent number: 6700030
    Abstract: A process for converting hydrocarbons in the presence of a catalyst is described that is carried out in a three-phase reactor in which the liquid Peclet number is in the range 0 (excluded) to about 10, with a superficial gas velocity Ug that is preferably less than 35 cm.s−1, to encourage gas transfer into the liquid phase and avoid too much attrition of the catalyst grains.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: March 2, 2004
    Assignee: Institut Francais du Petrole
    Inventors: Jean-Marc Schweitzer, Pierre Galtier, Francois Hugues, Cristina Maretto
  • Publication number: 20040035751
    Abstract: The present invention relates to new mesoporous inorganic solids in the form of primary and/or secondary inorganic particles of D10≧1 &mgr;m and D50≧3 &mgr;m, preferably from D10≧2 &mgr;m and D50≧10 &mgr;m the size of which can go up to 10 mm, wherein the microporous volume (pores of size less than or equal to 2 &mgr;m) represents at most 10% of the total porous volume up to 300 nm.
    Type: Application
    Filed: May 14, 2003
    Publication date: February 26, 2004
    Applicant: CECA, S.A.
    Inventor: Dominique Plee
  • Publication number: 20040030210
    Abstract: A process is provided for the production of xylenes from reformate. The process is carried out by methylating the benzene, toluene, or both present in the reformate to produce a resulting product having a higher xylenes content than the reformate. Greater than equilibrium amounts of para-xylene can be produced by the process.
    Type: Application
    Filed: June 18, 2003
    Publication date: February 12, 2004
    Inventors: Gary D. Mohr, John Scott Buchanan, Robert A. Crane, Jihad M. Dakka, Xiaobing Feng, Larry L. Laccino, Shifang L. Luo
  • Publication number: 20040020828
    Abstract: The present invention relates to a new crystalline zeolite SSZ-53 prepared by using phenylcycloalkylmethyl ammonium cations as structure directing agents.
    Type: Application
    Filed: July 10, 2003
    Publication date: February 5, 2004
    Applicant: Chevron U.S.A. Inc.
    Inventor: Saleh Elomari
  • Publication number: 20040020827
    Abstract: The present invention relates to new crystalline molecular sieve SSZ-64 prepared using a N-cyclobutylmethyl-N-ethylhexamethyleneiminium cation or N-cyclobutylmethyl-N-ethylheptamethyleneiminium cation structure directing agent, and processes employing SSZ-64 in a catalyst.
    Type: Application
    Filed: August 1, 2002
    Publication date: February 5, 2004
    Inventor: Saleh Elomari
  • Patent number: 6679986
    Abstract: A catalytic support includes a substantial quantity of at least one SVI group Periodic Table metal oxide in which is incorporated silica. The mass ratio between the quantity of SVI group metal oxide and the quantity of silica it contains ranges between 5 and 70, the SVI group metal oxide is in crystalline form, and the specific surface of the support is greater than or equal to 160 m2/g.
    Type: Grant
    Filed: May 16, 2000
    Date of Patent: January 20, 2004
    Assignee: Total Raffinage Distribution S.A.
    Inventors: Pedro Da Silva, Marc Bisson, Alain Milan, Sebastien Decker, Joeri Denayer
  • Patent number: 6670517
    Abstract: A process for alkylating aromatics is provided which comprises contacting an aromatic-containing feed with alkylating agent in the presence of a silica-bound ZSM-5 zeolite catalyst, wherein the ZSM-5 has a crystal size no greater than 0.05 micron, said contacting being conducted under alkylating conditions to provide a product containing a monoalkylated aromatic fraction and a polyalkylated aromatic fraction, wherein the polyalkylated aromatic fraction contains at least 40 wt. % of the para-dialkylaromatic species. The polyalkylated aromatic fraction may be contacted with unsubstituted aromatic and a transalkylation catalyst under transalkylating conditions to provide a mono-alkylated aromatic-rich stream, e.g., an ethylbenzene-rich stream.
    Type: Grant
    Filed: August 24, 2000
    Date of Patent: December 30, 2003
    Assignee: Exxon Mobil Chemical Patents Inc.
    Inventors: Jeevan Sahib Abichandani, Chaya Rao Venkat, Dominick Nicholas Mazzone
  • Patent number: 6656268
    Abstract: This invention relates to a new synthetic porous crystalline material, designated MCM-70, having, in its calcined form, the x-ray diffraction pattern of Table 1 above. The invention further resides in a method for preparing MCM-70 in borosilicate and in the conversion of organic compounds contacted with an active form of MCM-70.
    Type: Grant
    Filed: January 25, 2002
    Date of Patent: December 2, 2003
    Assignee: ExxonMobil Oil Corporation
    Inventors: Sandeep S. Dhingra, Simon C. Weston
  • Publication number: 20030220187
    Abstract: The present invention relates to a composite for catalytic distillation, comprising a substrate material, and a modifying material and an active material, wherein said substrate material is made of porous materials, said modified material comprises at least one metal oxide, and said active material comprises an active component for a catalytic reaction. The catalytic distillation composite according to the present invention serves as both distillation packings and catalysts, and can allow catalysts to make the best of its effenciency, provide sufficient contact areas between gas and liquid phases, which facilitates mass transfer between gas and liquid phases, boosts effects in both reaction and separation and is liable for filling, removing and utilizing in industries.
    Type: Application
    Filed: February 6, 2003
    Publication date: November 27, 2003
    Inventors: Yuanyi Yang, Dongfeng Li, Wei Dai, Shuo Chen, Guoqing Wang, Lihua Liao, Jianmin Cheng, Yanlai Guo, Hui Peng
  • Patent number: 6645370
    Abstract: This invention relates to a process for producing zeolite-bound high silica zeolites and the use of the zeolite-bound high silica zeolite produced by the process for hydrocarbon conversion. The process is carried out by forming an extrudable paste comprising a mixture of high silica zeolite in the hydrogen form, water, silica, and optionally an extrusion aid, extruding the extrudable paste to form silica-bound high silica zeolite extrudates, and then converting the silica of the binder to a zeolite binder. The zeolite-bound high silica zeolite produced by the process comprises high silica zeolite crystals that are bound together by zeolite binder crystals. The zeolite-bound high silica zeolite finds particular application in hydrocarbon conversion processes, e.g., catalytic cracking, alkylation, disproportionation of toluene, isomerization, and transalkylation reactions.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: November 11, 2003
    Assignee: Exxon Mobil Chemical Patents Inc.
    Inventors: Johannes P. Verduijn, Gary David Mohr
  • Patent number: 6642425
    Abstract: A unified process for reactive distillation under pressure for the alkylation of light aromatic hydrocarbons such as benzene and cumene with straight chain C6-C18 olefins using a solid acid alkylation catalyst supported in the reflux zone of the distillation column. The process is continuous, using a reactive distillation configuration such that at least a portion of the olefin is injected below the benzene rectification zone at the top of the column. The aromatic hydrocarbon is injected continuously at a low rate above the rectification zone at the base of the column and above the reboiler. The alkylation reaction takes place primarily in the liquid phase on the solid acid catalyst and is characterized in that the molar ratio of aromatic hydrocarbon to olefin in the liquid phase may be adjusted.
    Type: Grant
    Filed: March 5, 2002
    Date of Patent: November 4, 2003
    Assignee: Sasol North America Inc.
    Inventors: J. Barry Winder, Donald L. Wharry, John R. Schell, Mary J. Brown, Joy L. Murray, Richard C. Howe, Wayne L. Sorensen, Daniel P. Szura
  • Patent number: 6642426
    Abstract: A system and process for producing xylene and other alkylated aromatics includes one or more fluidized bed reaction zones that provide contact between the reactants (i.e., an aromatic reactant and an alkylating reagent). Improved conversion and selectivity is realized when the alkylating reagent is stagewise injected into the fluidized bed at one or more locations downstream from the location of aromatic reactant introduction into the fluidized bed. Preferably, the alkylating reagent is introduced at a plurality of locations along the axial direction of the fluidized bed reaction zone, or at plural locations between a plurality of different fluidized bed reaction zones.
    Type: Grant
    Filed: October 5, 1998
    Date of Patent: November 4, 2003
    Inventors: David L. Johnson, Robert G. Tinger, Robert A. Ware, Sergei Yurchak
  • Publication number: 20030176750
    Abstract: The present invention relates to a process for the preparation of dimethylcumenes comprising alkylating a substrate comprising of one or more xylene isomers with an alkylating agent in the presence of a solid acid zeolite catalyst selected from ultrastable zeolite Y (Si/Al=5 to 50) and Beta (Si/Al=10-120), and separating the products formed in vapour phase.
    Type: Application
    Filed: December 21, 2001
    Publication date: September 18, 2003
    Inventors: Chitta Ranjan Patra, Rajiv Kumar
  • Patent number: 6616830
    Abstract: The present invention relates to a new crystalline zeolite SSZ-57 and processes employing SSZ-57 in a catalyst.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: September 9, 2003
    Assignee: Chevron U.S.A. Inc.
    Inventor: Saleh Elomari
  • Publication number: 20030149320
    Abstract: A process for the alkylation of aromatics with olefins using a solid catalyst is disclosed, wherein the olefin ratio and/or the maximum olefin concentration in the alkylation catalyst bed is maintained less than an upper limit. Such operation can decrease the catalyst deactivation rate and the formation of diphenylalkanes. This invention is applicable to processes for the production of a wide variety of commercially important alkylated aromatics, including ethylbenzene and cumene.
    Type: Application
    Filed: November 4, 2002
    Publication date: August 7, 2003
    Inventors: Gregory J. Gajda, James F. McGehee
  • Publication number: 20030125592
    Abstract: 1.
    Type: Application
    Filed: December 13, 2002
    Publication date: July 3, 2003
    Inventors: Ajit B. Dandekar, Thomas Francis Degnan, John P. McWilliams, Chaya R. Venkat
  • Publication number: 20030114707
    Abstract: The present invention relates to a process for the arylation of olefins by reaction of haloaromatics or arylsulfonates with olefins in the presence of a palladium catalyst, a bulky nitrogen base and a dipolar aprotic solvent.
    Type: Application
    Filed: November 27, 2002
    Publication date: June 19, 2003
    Inventors: Florian Rampf, Markus Eckert
  • Publication number: 20030105353
    Abstract: The present invention relates to a process for the arylation of olefins by reaction of haloaromatics or arylsulfonates with olefins in the presence of a palladium catalyst, a bulky nitrogen base and a salt.
    Type: Application
    Filed: November 27, 2002
    Publication date: June 5, 2003
    Inventors: Florian Rampf, Markus Eckert
  • Publication number: 20030097033
    Abstract: The present invention relates to a process for the preparation of an alkali metal catalyst by mixing a melt of the alkali metal with a pulverulent, solid inorganic material at above the melting point of the alkali metal, wherein the pulverulent, solid inorganic material comprises a mixture of potassium carbonate and at least one alkali metal chloride selected from sodium chloride and potassium chloride.
    Type: Application
    Filed: October 29, 2002
    Publication date: May 22, 2003
    Inventor: Ulrich Steinbrenner
  • Patent number: 6566571
    Abstract: Process for preparing monofunctional, bifunctional and/or polyfunctional biaryls of the formula (I) Ar—Ar′  (I) by reacting haloaromatics of the formula (II) Ar—X  (II) with boron compounds of the formula (IIIa), (IIIb) and/or (IIIc) in the presence of at least one palladium complex of the formula (IVa) or (IVb)
    Type: Grant
    Filed: February 4, 2002
    Date of Patent: May 20, 2003
    Assignee: Degussa AG
    Inventors: Thomas Riermeier, Matthias Beller, Alexander Zapf
  • Publication number: 20030092948
    Abstract: The invention relates to a process for alkylating a hydrcarbon feed which comprises contacting the hydrocarbon feed to be alkylated with an alkylation agent in the presence of a catalyst comprising a solid acid, a hydrogenation component consisting essentially of one or more Group VIII noble metals, and at least about 0.05 wt % of sulfur, based on the total weight of the catalyst composition. The invention further pertains to a catalyst suitable for said process and to a process for the preparation of said catalyst. The use of said catalyst results in a high conversion of the alkylation agent, a high C5+ alkylate yield, and a good stability, while the selectivity has improved over the use of a comparable catalyst without sulfur.
    Type: Application
    Filed: October 22, 2002
    Publication date: May 15, 2003
    Inventors: Emanuel Hermanus van Broekhoven, Pieter Bogaard
  • Publication number: 20030092949
    Abstract: A process for producing cumene is provided which comprises the step of contacting benzene and propylene under at least partial liquid phase alkylating conditions with a particulate molecular sieve alkylation catalyst, wherein the particles of said alkylation catalyst have a surface to volume ratio of about 80 to less than 200 inch−1.
    Type: Application
    Filed: December 13, 2002
    Publication date: May 15, 2003
    Inventors: Ajit B. Dandekar, Michael Hryniszak, David Lawrence Stern
  • Publication number: 20030073876
    Abstract: Improved methods for conducting solid acid-catalyzed, near- or supercritical heterogeneous chemical reactions (e.g., alkylation reactions) are provided which give enhanced product yields and permit longer processing runs. The preferred reactions of the invention are carried out in the presence of a solid macroporous catalyst having a surface area of from about 50-400 m2/g and a pore size of from about 70-150 Å. Product selectivity is enhanced by pressure-tuning of the reaction to promote production and separation of desired reaction products. In continuous processing, the chemical reaction may be interrupted before significant catalyst deactivation, followed by increasing reactor pressure and/or reducing reactor temperature to remove the accumulating coke; when the catalyst is regenerated, the original reaction conditions and reactant introduction may be resumed.
    Type: Application
    Filed: August 27, 2001
    Publication date: April 17, 2003
    Inventors: Bala Subramaniam, Christopher James Lyon
  • Patent number: 6547958
    Abstract: The present invention relates to new crystalline zeolite SSZ-59 and processes employing SSZ-59 as a catalyst.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: April 15, 2003
    Assignee: Chevron U.S.A. Inc.
    Inventor: Saleh Elomari
  • Patent number: 6540905
    Abstract: The present invention relates to new crystalline zeolite SSZ-58 and processes employing SSZ-58 as a catalyst.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: April 1, 2003
    Assignee: Chevron U.S.A. Inc.
    Inventor: Saleh Elomari
  • Patent number: 6540906
    Abstract: The present invention relates to new crystalline zeolite SSZ-60 and processes employing SSZ-60 as a catalyst.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: April 1, 2003
    Assignee: Chevron U.S.A. Inc.
    Inventor: Saleh Elomari
  • Patent number: 6540903
    Abstract: The present invention relates to new crystalline zeolite SSZ-47 prepared using a bicyclo ammonium cation templating agent.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: April 1, 2003
    Assignee: Chevron U.S.A. Inc.
    Inventors: Gregory S. Lee, Yumi Nakagawa, Stacey I. Zones
  • Patent number: 6534690
    Abstract: A process for the preparation of at least one spherically shaped porous microcomposite is provided which microcomposite comprises a perfluorinated ion-exchange polymer containing pendant sulfonic and/or carboxylic acid groups entrapped within and highly dispersed throughout a network of inorganic oxide, wherein the weight percentage of the perfluorinated ion-exchange polymer in the microcomposite is from about 0.1 to about 90 percent, and wherein the size of the pores in the microcomposite is about 0.
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: March 18, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Mark Andrew Harmer, Qun Sun
  • Publication number: 20030050521
    Abstract: The present invention provides a process for regenerating a spent aromatics alkylation or transalkylation catalyst comprising a molecular sieve by contacting the spent catalyst with an oxygen-containing gas at a temperature of about 120 to about 600° C. and then contacting the catalyst with an aqueous medium, such as an ammonium nitrate solution, an ammonium carbonate solution or an acid solution.
    Type: Application
    Filed: September 13, 2002
    Publication date: March 13, 2003
    Inventors: Ajit B. Dandekar, Michael Hryniszak, Jeffrey S. Beck, David L. Stern, Kathleen M. Keville
  • Patent number: 6525236
    Abstract: A process for manufacturing cumene by reacting propylene with benzene, including treating a vent stream from the reaction zone, to recover propylene for return to the reactor. The process involves using a gas separation membrane to separate propylene from propane in the reactor vent stream. The membrane separation step results in a residue stream typically containing as much as 30%, 40% or more propane, which is vented from the process, and a permeate stream containing 95% or less propylene, which is recirculated to the reactor.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: February 25, 2003
    Assignee: Membrane Technology and Research, Inc.
    Inventors: Richard W. Baker, Andre R. Da Costa, Ramin Daniels
  • Patent number: 6524551
    Abstract: This invention provides a process for the synthesis of MCM-58 using 1-(1-adamantyl)pyridinium cations as a directing agent. The resultant MCM-58 is useful in a variety of hydrocarbon conversion reactions including toluene disproportionation, transalkylation of aromatics, reaction of paraffins with aromatics, paraffin isomerization and alkylation of aromatics with olefins.
    Type: Grant
    Filed: January 25, 2002
    Date of Patent: February 25, 2003
    Assignee: ExxonMobil Oil Corporation
    Inventor: Sandeep S. Dhingra
  • Publication number: 20030023124
    Abstract: This invention concerns an alkylation process. According to the process a side-chain of a substituted aromatic compound is alkylated by reacting the aromatic compound with an alkylating agent in the presence of a catalyst. According to the invention, the catalyst comprises a restructured smectite clay to which basic ions are incorporated by ion-exchange.
    Type: Application
    Filed: July 24, 2002
    Publication date: January 30, 2003
    Inventors: Adriana De Stefanis, Giorgio Perez, Anthony Tomlinson, Christer Bergstrom
  • Patent number: 6512153
    Abstract: Process for the alkylation of aromatic compounds by the reaction of the aromatic compound of interest with isopropanol, alone or mixed with propylene, wherein the reaction is carried out in the presence of a catalytic composition based on zeolite, under mixed gas-liquid phase conditions or under completely liquid phase conditions, at such temperature and pressures that the concentration of water in the reaction liquid phase is not higher than 8,000 ppm w/w, regardless of the total water content present in the reaction mixture.
    Type: Grant
    Filed: July 7, 2000
    Date of Patent: January 28, 2003
    Assignee: Enichem S.p.A.
    Inventors: Oscar Cappellazzo, Gianni Girotti, Massimiliano Pollastri, Sergio Lombardini, Domenico Piccininno
  • Publication number: 20030018219
    Abstract: A process for Friedel-Crafts type liquid-phase alkylation or acylation of an aromatic compound using a hydrotalcite-type basic anionic clay catalyst represented by a formula.
    Type: Application
    Filed: July 1, 2002
    Publication date: January 23, 2003
    Inventors: Vasant Ram chandra Choudhary, Suman Kumar Jana
  • Publication number: 20030013932
    Abstract: The method for producing diarylmethane and its derivatives by condensation of an aromatic hydrocarbon and a methylenating agent is proposed, in which the aromatic hydrocarbon having at least one hydrogen atom that is directly connected to its benzene ring and a methylenating agent such as formalin are reacted in a specific temperature range in the presence of a heteropoly-acid of the condensation product of at least one oxide selected from the group of Mo, W, Nb and V with an oxyacid of P, Si, As or Ge.
    Type: Application
    Filed: June 6, 2002
    Publication date: January 16, 2003
    Applicant: Nippon Petrochemicals Co., Ltd.
    Inventor: Toshio Okuhara
  • Patent number: 6504070
    Abstract: A method of preparing an alkyl-substituted aromatic hydrocarbon, which comprises alkylating an aromatic hydrocarbon with an olefin in the presence of a catalyst comprising an iridium compound having at least one iridium atom and at least one &bgr;-diketonato ligand to produce the alkyl-substituted aromatic hydrocarbon.
    Type: Grant
    Filed: February 2, 2001
    Date of Patent: January 7, 2003
    Assignee: Nippon Mitsubishi Oil Corporation
    Inventors: Takaya Matsumoto, Douglas Taube, Roy Anthony Periana
  • Patent number: 6500996
    Abstract: A process for the removal of hydrocarbon contaminants, such as dienes and olefins, from an aromatics reformate by contacting an aromatics reformate stream with a hydrotreating catalyst and/or a molecular sieve. The hydrotreating catalyst substantially converts all dienes to oligomers and partially converts olefins to alkylaromatics. The molecular sieve converts the olefins to alkylaromatics. The process provides an olefin depleted product which can be passed through a clay treater to substantially convert the remaining olefins to alkylaromatics. The hydrotreating catalyst has a metal component of nickel, cobalt, chromium, vanadium, molybdenum, tungsten, nickel-molybdenum, cobalt-nickel-molybdenum, nickel-tungsten, cobalt-molybdenum or nickel-tungsten-titanium, with a nickel molybdenum/alumina catalyst being preferred. The molecular sieve is an intermediate pore size zeolite, preferably MCM-22. The clay treatment can be carried out with any clay suitable for treating hydrocarbons.
    Type: Grant
    Filed: October 28, 1999
    Date of Patent: December 31, 2002
    Assignee: ExxonMobil Oil Corporation
    Inventors: Stephen H. Brown, Tarun K. Chaudhuri, Jose G. Santiesteban
  • Publication number: 20020198421
    Abstract: The present invention relates to a continuous alkylation process wherein an alkylatable compound is reacted with an alkylation agent in the presence of a solid acid alkylation catalyst to form an alkylate and wherein the catalyst is regenerated, said process being performed in an apparatus comprising a series of at least two catalyst-containing reactors in a zone A and a series of at least two catalyst-containing reactors in a zone B, in which process
    Type: Application
    Filed: June 5, 2002
    Publication date: December 26, 2002
    Inventors: Emanuel Hermanus Van Broekhoven, Johannes Wilhelmus Maria Sonnemans, Stephan Zuijdendorp
  • Publication number: 20020198420
    Abstract: A process for mono-alkylating monocyclic aromatic hydrocarbons is disclosed wherein the process comprises reacting at least one monocyclic aromatic hydrocarbon with at least one &agr;-olefin having from 4 to 20 carbon atoms in the presence of an anhydrous alkane sulfonic acid at a temperature below about 280° F.
    Type: Application
    Filed: March 20, 2001
    Publication date: December 26, 2002
    Applicant: CROMPTON CORPORATION.
    Inventors: Giao Vinh Nguyen, James Alfred Ragains
  • Publication number: 20020198422
    Abstract: The present invention relates to a process for the catalytic alkylation of hydrocarbons comprising (i) reacting an alkylatable compound with an alkylation agent over a solid acid alkylation catalyst to form an alkylate, and (ii) regenerating said catalyst under mild regeneration conditions in the presence of hydrogen and hydrocarbon, wherein the hydrocarbon comprises at least a portion of the formed alkylate.
    Type: Application
    Filed: June 5, 2002
    Publication date: December 26, 2002
    Inventors: Emanuel Hermanus Van Broekhoven, Johannes Wilhelmus Maria Sonnemans, Stephan Zuijdendorp
  • Publication number: 20020183516
    Abstract: Improved methods for generating a —C—C— bond by cross-coupling of a transferable group with an acceptor group. The transferable group is a substituent of an organosilicon nucleophile and the acceptor group is provided as an organic electrophile. The reaction is catalyzed by a Group 10 transition metal complex (e.g., Ni, Pt or Pd), particularly by a palladium complex. Certain methods of this invention use improved organosilicon nucleophiles which are readily prepared, can give high product yields and exhibit high stereo selectivity. Methods of this invention employ activating ions such as halides, hydroxide, hydride and silyloxides. In specific embodiments, organosilicon nucleophilic reagents of this invention include siloxanes, particularly cyclic siloxanes. The combination of the cross-coupling reactions of this invention with ring-closing metathesis, hydrosilylation and intramolecular hydrosilylation reactions provide useful synthetic strategies that have wide application.
    Type: Application
    Filed: June 6, 2001
    Publication date: December 5, 2002
    Inventors: Scott E. Denmark, Jun Young Choi, Daniel Wehrli, Zhicai Wu, Luc Neuville, Weitao Pan, Ramzi F. Sweis, Zhigang Wang, Shyh-Ming Yang
  • Patent number: 6486374
    Abstract: A method and apparatus for alkylating an alkylation substrate with an alkylating agent in the presence of solid catalyst particles in a transport reactor is disclosed. Solid catalyst particles in the transport reactor effluent recirculate to the inlet of the transport reactor through one or more conduits. The rate through each conduit is regulated by fluid-controlled valves that use the alkylation substrate as the regulating fluid. This method and apparatus help ensure uniform or symmetric flow of catalyst from the effluent of the transport reactor to the bottom of the transport reactor. This method and apparatus also help ensure uniform or symmetric flow of alkylation substrate to the bottom of the transport reactor with minimal bypassing by the alkylating agent around of the transport reactor. This invention finds use in the production of motor fuels by the alkylation of liquid hydrocarbons in the presence of solid catalyst particles.
    Type: Grant
    Filed: February 12, 1999
    Date of Patent: November 26, 2002
    Assignee: UOP LLC
    Inventors: William H. Radcliffe, Wesley L. Kiel, Christopher D. Gosling, Paul A. Sechrist, Paul Anderson
  • Publication number: 20020173684
    Abstract: A method of alkylating aliphatic or aromatic hydrocarbons with olefins using solid hydrogen fluoride-equivalent catalysts is described. Preferred catalysts comprise solid polymeric onium polyhydrogen fluoride complexes.
    Type: Application
    Filed: May 17, 2001
    Publication date: November 21, 2002
    Inventor: George A. Olah
  • Publication number: 20020173652
    Abstract: The present invention provides a process for preparing a polyaromatic compound comprising at least one sequence of two aromatic rings.
    Type: Application
    Filed: May 15, 2002
    Publication date: November 21, 2002
    Inventors: Jean-Christophe Galland, Monique Savignac, Jean-Pierre Genet
  • Publication number: 20020104780
    Abstract: The present invention relates to a new crystalline zeolite SSZ-53 prepared by using phenylcycloalkylmethyl ammonium cations as structure directing agents.
    Type: Application
    Filed: April 17, 2001
    Publication date: August 8, 2002
    Inventor: Saleh Elomari
  • Patent number: 6429345
    Abstract: The invention concerns a process for producing at least one compound selected from 2-, 3-, 4-, 5- and 6-phenylalkanes by alkylating benzene using at least one olefin containing at least 9 carbon atoms per molecule, in the presence of a catalyst comprising at least one zeolite with structure type EUO, at least partially in its acid form and at least one matrix, said zeolite comprising silicon and at least one element T selected from the group formed by aluminium, iron, gallium and boron (preferably aluminium and boron), with an Si/T atomic ratio of more than 5; said process being carried out at a temperature in the range 30° C. to 400° C., a pressure in the range 0.1 to 10 MPa, with an hourly space velocity of 0.50 to 200 h−1, and a benzene/olefins mole ratio in the range 1:1 to 50:1.
    Type: Grant
    Filed: June 22, 2000
    Date of Patent: August 6, 2002
    Assignee: Institut Francais du Petrole
    Inventors: Jean-François Joly, Fabio Alario, Elisabeth Merlen, Julia Magne-Drisch
  • 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: 6417420
    Abstract: A process for the production of alkylaromatic hydrocarbons by alkylating aromatic hydrocarbons with olefinic hydrocarbons is disclosed. The olefinic hydrocarbons are produced by dehydrogenating paraffinic hydrocarbons. Aromatic byproducts formed in dehydrogenation are removed using an aromatic byproducts removal zone and either a dividing wall distillation column or thermally coupled distillation columns. The process significantly decreases the cost of utilities in producing alkylaromatics, such as precursors for detergent manufacture.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: July 9, 2002
    Assignee: UOP LLC
    Inventors: Douglas G. Stewart, Dennis E. O'Brien
  • Patent number: 6409773
    Abstract: Couplers for hair coloring compositions for oxidative dyeing of hair are compounds of the formula at least one coupler comprising a compound of the formula (1): wherein R is selected from of C1 to C2 alkyl and hydroxyethyl, R1 and R2 are each independently selected from the group consisting of C1 to C5 alkyl, C3 to C6 cycloalkyl, C1 to C5 alkoxy, C1 to C5 hydroxyalkyl, C1 to C5 hydroxyalkoxy, or R1 and R2 together with the carbon atom to which they are attached form a C3 to C6 cycloalkyl group.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: June 25, 2002
    Assignee: Clairol Incorporated
    Inventors: Mu-Ill Lim, Yuh-Guo Pan, Margaret Popp
  • Publication number: 20020052535
    Abstract: A method of preparing an alkyl-substituted aromatic hydrocarbon, which comprises alkylating an aromatic hydrocarbon with an olefin in the presence of a catalyst comprising an iridium compound having at least one iridium atom and at least one &bgr;-diketonato ligand to produce the alkyl-substituted aromatic hydrocarbon.
    Type: Application
    Filed: February 2, 2001
    Publication date: May 2, 2002
    Inventors: Takaya Matsumoto, Douglas Taube, Roy Anthony Periana