Using Halogen-containing Catalyst Patents (Class 585/462)
-
Patent number: 8802908Abstract: Process and systems for alkane bromination and, in one or more embodiments, to separate, parallel methane and higher alkanes bromination in a bromine-based process. An embodiment discloses a bromine-based process for converting alkanes to liquid hydrocarbons that includes alkanes bromination, the process comprising: brominating a methane stream comprising methane and having less than about 2 mol % of ethane to form methane bromination products comprising brominated methane and a first fraction of hydrogen bromide; separately brominating a C2+ alkane stream comprising an alkane having 2 or more carbon atoms to form C2+ methane bromination products comprising brominated alkanes having 2 or more carbon atoms and a second fraction of hydrogen bromide; and catalytically reacting at least a portion of the brominated methane and the brominated alkanes to form higher molecular hydrocarbons.Type: GrantFiled: October 8, 2012Date of Patent: August 12, 2014Assignee: Marathon GTF Technology, Ltd.Inventors: John J. Waycullis, Sagar B. Gadewar, Raphael Thomas
-
Publication number: 20140100401Abstract: The present invention relates to catalyst composition prepared by a method wherein an aluminosilicate zeolite having its pores filled with templating agent with a specific organic silicon compound to deposit said organic silicon compound on the surface of the zeolite to provide an organosilicon treated catalyst precursor; and calcining the organosilicon treated catalyst precursor under conditions sufficient to remove the templating agent from the zeolite. Furthermore, the present invention relates to a method for preparing said catalyst composition and a process for alkylation of an aromatic hydrocarbon comprising contacting the catalyst composition of the present invention with a feed stream comprising said aromatic hydrocarbon and an alkylating agent under aromatic alkylation conditions.Type: ApplicationFiled: May 3, 2012Publication date: April 10, 2014Applicant: Saudi Basic Industries CorporationInventor: Debasish Das
-
Publication number: 20130324760Abstract: A method of crystallizing a crystalline molecular sieve having a pore size in the range of from about 2 to about 19 ?, said method comprising the steps of (a) providing a mixture comprising at least one source of ions of tetravalent element (Y), at least one hydroxide source (OH?), and water, said mixture having a solid-content in the range of from about 15 wt. % to about 50 wt. %; and (b) treating said mixture to form the desired crystalline molecular sieve with stirring at crystallization conditions sufficient to obtain a weight hourly throughput from about 0.005 to about 1 hr?1, wherein said crystallization conditions comprise a temperature in the range of from about 200° C. to about 500° C. and a crystallization time less than 100 hr.Type: ApplicationFiled: August 7, 2013Publication date: December 5, 2013Inventors: Ivy D. Johnson, Wenyih Frank Lai
-
Patent number: 8492604Abstract: The present invention relates to a method and a reactor system for preparing linear alpha-olefins by oligomerization of ethylene in the presence of an organic solvent and an oligomerization catalyst, wherein a product fraction of C10+ alpha-olefins contaminated with aromatic C9+ compounds is separated from a product main stream and transferred into a conversion reactor, where C10+ alpha-olefins and aromatic C9+ components are reacted in the presence of a Friedel-Crafts alkylation catalyst to produce aromatic C19+ compound.Type: GrantFiled: January 31, 2007Date of Patent: July 23, 2013Assignee: Saudi Basic Industries CorporationInventors: Peter M. Fritz, Wolfgang Müller, Florian Winkler, Heinz Bölt
-
Publication number: 20110178355Abstract: The present invention relates to a method and a reactor system for preparing linear alpha-olefins by oligomerization of ethylene in the presence of an organic solvent and an oligomerization catalyst, wherein a product fraction of C10+ alpha-olefins contaminated with aromatic C9+ compounds is separated from a product main stream and transferred into a conversion reactor, where C10+ alpha-olefins and aromatic C9+ components are reacted in the presence of a Friedel-Crafts alkylation catalyst to produce aromatic C19+ compounds.Type: ApplicationFiled: January 31, 2007Publication date: July 21, 2011Applicants: LINDE AG, SAUDI BASIC INDUSTRIES CORPORATIONInventors: Peter M. Fritz, Wolfgang Müller, Florian Winnkler
-
Patent number: 7910783Abstract: A process for preparing a chelating ligand of the formula (II) from a chelating ligand of the formula (I) via an sp2-sp2 or sp2-sp3 coupling reaction with an organometallic compound of the formula (III).Type: GrantFiled: December 14, 2005Date of Patent: March 22, 2011Assignee: ExxonMobil Chemical Patents Inc.Inventors: Alexander Z. Voskoboynikov, Mikhail V. Nikulin, Alexey N. Ryabov, Alexander V. Lygin, Catalina L. Coker, Jo Ann M. Canich
-
Patent number: 7781599Abstract: A problem of the present invention is to provide an economical process with minimized toxicity for producing an aromatic compound having a variety of substituents such as various alkyl groups, and the problem is solved by a process for production of an aromatic compound represented by formula (1) below, which comprises reacting a compound represented by formula (2) below with an aromatic magnesium reagent represented by formula (3a) below in the presence of an iron catalyst and a diamine compound: wherein R is an optionally substituted hydrocarbon group or a C3-C10 saturated or unsaturated ring group; A is an optionally substituted C4-C20 aromatic group or an optionally substituted heteroaromatic group; X is a halogen atom or a sulfonic acid ester; and Y1 is bromine, iodine, chlorine or a carbanion ligand.Type: GrantFiled: February 10, 2005Date of Patent: August 24, 2010Assignee: Japan Science and Technology AgencyInventors: Masaharu Nakamura, Eiichi Nakamura, Keiko Matsuo, Shingo Ito
-
Publication number: 20100160703Abstract: A process for alkylating an aromatic compound containing no hydroxyl groups comprising reacting at least one non-hydroxyl containing aromatic compound with at least one olefinic oligomer in the presence of an acidic ionic liquid catalyst, wherein the olefinic oligomer has a carbon range of from about C12 to about C70 and is synthesized by oligomerizing at least one monoolefin monomer in the presence of an acidic ionic liquid catalyst.Type: ApplicationFiled: February 19, 2010Publication date: June 24, 2010Applicant: Chevron Oronite Company LLCInventors: Michael Driver, Curt B. Campbell, Thomas V. Harris
-
Patent number: 7732654Abstract: We provide a process for making a fuel or lubricant component, comprising: performing alkylation and oligomerization by contacting a stream comprising one or more olefins and one or more isoparaffins, wherein a molar ratio of the one or more olefins to the one or more isoparaffins in the stream is at least 0.8, an acidic chloroaluminate ionic liquid catalyst, and a halohalide; and recovering the fuel or lubricant component having a Bromine Number of less than 4. We provide a process comprising performing concurrent alkylation and oligomerization. We also provide a process for making a lubricant component having a kinematic viscosity at 100° C. of at least 6.9 mm2/s, a VI of at least 134, a cloud point less than or equal to ?28° C., and a Bromine Number of less than or equal to 6.1.Type: GrantFiled: June 9, 2009Date of Patent: June 8, 2010Assignee: Chevron U.S.A. Inc.Inventors: Saleh Elomari, Russell R. Krug
-
Patent number: 7723556Abstract: We provide a process for making a base oil, comprising: a) selecting an olefin feed produced by thermal cracking of a waxy feed; b) oligomerizing the olefin feed in an ionic liquid oligomerization zone at a set of oligomerization conditions to form an oligomer; and c) alkylating the oligomer in the presence of an isoparaffin, in an ionic liquid alkylation zone, at a set of alkylation conditions to form an alkylated oligomeric product having a kinematic viscosity at 100° C. of 6.9 mm2/s or greater, a VI of at least 134, and a Bromine Number of less than 4. We provide a process to make base oil from an olefin feed produced in a FCC unit. We also provide a process to make two or more viscosity grades of base oil from an olefin feed produced by thermal cracking of a waxy feed.Type: GrantFiled: July 6, 2009Date of Patent: May 25, 2010Assignee: Chevron U.S.A. Inc.Inventors: Saleh Elomari, Russell R. Krug, Stephen J. Miller
-
Patent number: 7674945Abstract: The present invention discloses a process for alkylation of an aromatic hydrocarbon or isoalkane with an olefin over the catalysis of a solid acid, comprising contacting a reaction material containing an aromatic hydrocarbon or C4-C6 isoalkane, C2-C18 monoolefin and a compound containing a strongly electronegative element as promoter with a solid acid catalyst to carry out the alkylation, characterized in that the solid acid catalyst is contacted with a compound having a strongly electronegative element prior to its contact with the reaction material. Said process not only greatly increases the selectivity of the target product of the alkylation but also improves stability of the solid acid catalyst.Type: GrantFiled: January 19, 2005Date of Patent: March 9, 2010Assignee: China Petroleum & Chemical CorporationInventors: Yigong He, Zheng Man
-
Publication number: 20090163754Abstract: A process for alkylating an aromatic compound comprising reacting at least one aromatic compound with a mixture of olefins having from about 8 to about 100 carbon atoms, in the presence of a strong acid catalyst wherein the resulting product comprises at least about 60 weight percent of a 1, 2, 4 tri-alkylsubstituted aromatic compound.Type: ApplicationFiled: December 21, 2007Publication date: June 25, 2009Inventors: Gilles P. Sinquin, Curt B. Campbell
-
Patent number: 7495140Abstract: A process for alkylating an aromatic compound comprising reacting (a) a first amount of at least one aromatic compound with a first amount of a mixture of olefins having from about 8 to about 100 carbon atoms, in the presence of a strong acid catalyst; and reacting the product of (a) with an additional amount of at least one aromatic compound and an additional amount of a strong acid catalyst, and optionally, with an additional amount of a mixture of olefins selected from olefins having from about 8 to about 100 carbon atoms, wherein the resulting product comprises at least about 80 weight percent of a 1,2,4 tri-alkylsubstituted aromatic compound.Type: GrantFiled: June 1, 2006Date of Patent: February 24, 2009Assignee: Chevron Cronite Company LLCInventors: Curt B. Campbell, Gilles Sinquin
-
Patent number: 7297827Abstract: Disclosed is an alkylation reactor for preparing ethylbenzene. The reactor comprises a monolith catalyst system that includes a monolith support impregnated or co-formed with a catalyst suitable to catalyze the alkylation of benzene with ethylene. The catalyst may be selected from, for example, zeolites such as beta zeolite and MCM-22 zeolite, and fixed super acids. Also disclosed is a method of preparing ethylbenzene by alkylating a mixture of benzene and ethylene in an alkylation reactor comprising a monolith catalyst system, including a monolith support impregnated or co-formed with a suitable catalyst. In one embodiment the invention provides a convenient means of upgrading an existing reactor that has previously been used for conventional liquid phase alkylations such as those catalyzed by aluminum trichloride. The inventive alkylation method may be effectively and advantageously carried out under critical or near critical conditions, if desired.Type: GrantFiled: November 29, 2004Date of Patent: November 20, 2007Assignee: Fina Technology, Inc.Inventor: Kevin Kelly
-
Patent number: 7294420Abstract: A method of producing hydrogen for a fuel cell from a hydrocarbon fuel composition, by providing a hydrocarbon fuel composition, which is obtained by contacting a liquid hydrocarbon feed comprising an alkylating agent with an acidic catalyst, under conditions effective to alkylate at least a portion of the hydrocarbon feed; converting the hydrocarbon fuel composition into hydrogen; and optionally, introducing the hydrogen produced into a fuel cell. In a preferred embodiment the liquid hydrocarbon feed further comprises sulphur-containing impurities, at least a portion of which are alkylated during the alkylation step.Type: GrantFiled: August 28, 2002Date of Patent: November 13, 2007Assignee: BP P.L.C.Inventor: Michael Graham Hodges
-
Patent number: 7151199Abstract: 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: GrantFiled: June 10, 2002Date of Patent: December 19, 2006Assignee: ExxonMobil Chemical Patents Inc.Inventors: Luc Roger Marc Martens, Stephen N. Vaughn, Albert Edward Schweizer, John K. Pierce, Shun Chong Fung
-
Patent number: 7148388Abstract: In a process for preparing an olefinic hydrocarbon mixture comprising at least 5% by weight of mono-olefin oligomers of the empirical formula: CnH2n where n is greater than or equal to 6, a feedstock comprising n-butene and propylene in a molar ratio of about 1:0.01 to about 1:0.49 is contacted under oligomerization conditions with surface deactivated ZSM-23. The resultant mono-olefin oligomers comprise at least 20 percent by weight of olefins having at least 12 carbon atoms, wherein said olefins having at least 12 carbon atoms have an average of from about 0.8 to about 2.0 C1–C3 alkyl branches per carbon chain.Type: GrantFiled: March 28, 2003Date of Patent: December 12, 2006Assignee: ExxonMobil Chemical Patents Inc.Inventors: Stephen W. Beadle, Cesar M. Cheng-Guajardo, Carolyn B. Duncan, David Wayne Turner, Ramzi Y. Saleh
-
Patent number: 7105713Abstract: A method of modifying a ZSM-5-type zeolite catalyst to increase selectivity of the catalyst for para-isomers in aromatic alkylation reactions is provided. The method includes contacting a ZSM-5-type zeolite catalyst with a fluoride-containing compound. The fluoride-containing zeolite catalyst can be used in aromatic alkylation to provide di-alkyl aromatic products. A method of preparing a xylene product is also accomplished by providing a fluoride-treated ZSM-5-type zeolite catalyst within a reactor. The fluoride-treated ZSM-5 zeolite catalyst is contacted with a toluene/methanol feed under reaction conditions conditions suitable for toluene methylation to form a xylene product containing at least 50% para-xylene by total mixed xylenes.Type: GrantFiled: June 8, 2005Date of Patent: September 12, 2006Assignee: Saudi Basic Industries CorporationInventors: Ashim Kumar Ghosh, Pamela Harvey
-
Patent number: 7038099Abstract: 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: GrantFiled: November 26, 2003Date of Patent: May 2, 2006Inventor: George A Olah
-
Patent number: 6605566Abstract: A novel supported bimetallic catalyst comprises a group VIII metal such as platinum, and tin, at least a portion of which interacts strongly with the group VIII metal in the catalyst in the reduced state. In the partially oxidized state, the catalyst of the invention contains at least 10% of tin in the form of a reduced tin species with oxidation state 0, said species having an isomer shift in the range 0.80 to 2.60 mm/s and a quadrupolar splitting in the range 0.65 to 2.00 mm/s. The invention also concerns the preparation of said catalyst, and processes using said catalyst for transforming hydrocarbons into aromatic compounds, such as gasoline reforming processes and aromatic production processes.Type: GrantFiled: August 23, 2001Date of Patent: August 12, 2003Assignee: Institut Francais du PetroleInventors: Fabienne Le Peltier, Blaise Didillon, Jean-Claude Jumas, Josette Olivier-Fourcade
-
Patent number: 6573415Abstract: Process for the mono alkylation of a hydrocarbon substrate containing aromatic hydrocarbon compounds comprising contacting the aromatic substrate with an alkylating agent consisting of a mixture of olefinic compounds and poly-alkylated aromatic compounds in presence of a fluorinated sulphonic acid.Type: GrantFiled: August 20, 2001Date of Patent: June 3, 2003Assignee: Haldor Topsoe A/SInventors: Sven Ivar Hommeltoft, Karsten Laurents
-
Publication number: 20030097033Abstract: 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: ApplicationFiled: October 29, 2002Publication date: May 22, 2003Inventor: Ulrich Steinbrenner
-
Patent number: 6534690Abstract: 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: GrantFiled: April 26, 2001Date of Patent: March 18, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Mark Andrew Harmer, Qun Sun
-
Publication number: 20020173684Abstract: 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: ApplicationFiled: May 17, 2001Publication date: November 21, 2002Inventor: George A. Olah
-
Patent number: 6436866Abstract: Disclosed is a Lewis acid catalyst composition comprising a specific mixed medium and a Lewis acid catalyst (II), wherein the specific mixed medium is mixed medium (I) comprising a perfluorinated aliphatic hydrocarbon (A) and at least one non-fluorinated hydrocarbon or a mixed medium (I′) comprising a perfluorinated aliphatic hydrocarbon (A), a perfluorinated aromatic hydrocarbon (C) and water (D), and wherein the Lewis acid catalyst (II) is at least one compound selected from the group consisting of compounds respectively represented by the following formulae (1), (2) and (3): (RfSO3)nM (1), [(RfSO2)2N]nM (2), and [(RfSO2)3C]nM (3). Also disclosed is a Lewis acid catalyst represented by the above-mentioned formula (3).Type: GrantFiled: May 26, 2000Date of Patent: August 20, 2002Assignee: Asahi Kasei Kabushiki KaishaInventors: Joji Nishikido, Hitoshi Nakajima
-
Patent number: 6399835Abstract: Processes for the electrophilic substitution of aromatic compounds, such as alkylation, with a desired substituent are disclosed. The processes include contacting the aromatic compound, a precursor of the desired substituent and an aqueous reagent containing zinc halide at elevated temperatures such as above 50° C.Type: GrantFiled: April 6, 2000Date of Patent: June 4, 2002Assignee: Bromine Compounds Ltd.Inventors: Ariel Ewenson, David Itzhak, Miriam Freiberg Bergstein, Asher Shushan, Bertha Croitoru, David Beneish, Naim Faza
-
Publication number: 20020045788Abstract: Process for the mono alkylation of a hydrocarbon substrate containing aromatic hydrocarbon compounds comprising contacting the aromatic substrate with an alkylating agent consisting of a mixture of olefinic compounds and poly-alkylated aromatic compounds in presence of a fluorinated sulphonic acid.Type: ApplicationFiled: August 20, 2001Publication date: April 18, 2002Applicant: Haldor Topsoe A/SInventors: Sven I. Hommeltoft, Karsten Laurents
-
Publication number: 20010037045Abstract: 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: ApplicationFiled: April 26, 2001Publication date: November 1, 2001Inventors: Mark Andrew Harmer, Qun Sun
-
Patent number: 6281400Abstract: The present invention relates to a process for preparing a microcomposite comprising a highly fluorinated ion-exchange polymer containing pendant sulfonate functional groups, said polymer existing as aggregated particles entrapped within and dispersed throughout a network of silica. Due to their high surface area and acid functionality, these microcomposites possess wide utility as improved solid acid catalysts, particularly in the substitution of aromatic compounds, in the decomposition of hydroperoxides, and in the isomerization of olefins.Type: GrantFiled: January 14, 2000Date of Patent: August 28, 2001Assignee: E. I. du Pont de Nemours and CompanyInventors: Mark Andrew Harmer, Qun Sun
-
Patent number: 6248930Abstract: This invention concerns fluorine-modified perfluorinated ion-exchange microcomposites, comprising a perfluorinated ion-exchange polymer containing pendant sulphonic acid groups and/or carboxylic acid groups, entrapped within and highly dispersed throughout a network of inorganic oxide, said network having a plurality of fluoride groups bonded thereto; processes for their preparation and their use as catalysts in chemical processes such as alkylation of aromatic compounds.Type: GrantFiled: September 1, 1999Date of Patent: June 19, 2001Assignee: E. I. du Pont de Nemours and CompanyInventors: Mark Andrew Harmer, Qun Sun
-
Patent number: 6160190Abstract: Porous microcomposites have been prepared from perfluorinated ion-exchange polymer and metal oxides such as silica using the sol-gel process. Such microcomposites possess high surface area and exhibit extremely high catalytic activity. The microcomposites catalyze, among others, the reaction between organic aromatic compounds and olefins.Type: GrantFiled: June 3, 1999Date of Patent: December 12, 2000Assignee: E. I. du Pont de Nemours and CompanyInventors: Mark Andrew Harmer, Qun Sun
-
Patent number: 6133493Abstract: This invention concerns a modified porous microcomposite comprising a perfluorinated ion-exchange polymer entrapped within and highly dispersed throughout a network of inorganic oxide wherein the network and optionally the pendant groups of the polymer have been modified with a Lewis acid. These modified microcomposites can be used in catalyst compositions for various chemical processes, such as in the alkylation or acylation of aromatics.Type: GrantFiled: May 6, 1999Date of Patent: October 17, 2000Assignee: E. I. du Pont de Nemours and CompanyInventors: Mark Andrew Harmer, Qun Sun
-
Patent number: 6005151Abstract: The invention relates to a process for preparing monofunctional, bifunctional or polyfunctional aromatic olefins of the formula (I) ##STR1## wherein a palladium compound of the formula (IV) ##STR2## is used as a catalyst in the preparation of the compounds of the formula (I).Type: GrantFiled: January 30, 1996Date of Patent: December 21, 1999Assignee: AventisInventors: Wolfgang Anton Herrmann, Matthias Beller, Ahmed Tafesh
-
Patent number: 5994602Abstract: This invention relates to a process for the alkylation of aromatics by reacting an aromatic hydrocarbon with an olefin in the presence of an ionic liquid comprising (a) a compound of the formula R.sub.n MX.sub.3-n wherein R is a C1-C6 alkyl radical, M is aluminium or gallium, X is a halogen atom and n is 0, 1 or 2 and, (b) a hydrocarbyl substituted imidazolium halide or a hydrocarbyl substituted pyridinium halide wherein at least one of the said hydrocarbyl substituents in the imidazolium halide is an alkyl group having 1-18 carbon atoms. The process allows ready separation of reaction products from the ionic liquid and improves selectivity to alkylated products.Type: GrantFiled: July 29, 1997Date of Patent: November 30, 1999Assignee: BP Chemicals LimitedInventors: Ala'a K Abdul-Sada, Martin Philip Atkins, Brian Ellis, Philip Kenneth Gordon Hodgson, Mark Louis Michael Morgan, Kenneth Richard Seddon
-
Patent number: 5986155Abstract: Treating low reactivity alkylating agents in the vapor phase with catalysts converts the low reactivity alkylating agents to high reactivity alkylating agents. The alkylating agents are useful in synthesis of alkyl aromatics with Lewis acid catalysts.Type: GrantFiled: July 10, 1996Date of Patent: November 16, 1999Assignee: The Lubrizol CorporationInventors: James D. Burrington, Stuart L. Bartley, Douglas C. Rhubright, Paul A. Lewis, Marvin B. DeTar, Alicia L. Kliever, Frank A. Del Greco, Lawrence T. Novak
-
Patent number: 5977422Abstract: This invention relates to an improved catalytic process for the alkylation of benzene or substituted benzene with alkyl halides for the continuous production of diarylalkanes or substituted derivatives thereof using ethylaluminum dichloride or methylaluminum dichloride as an organoaluminum dichloride catalyst. A process and apparatus are provided for reacting either benzene (or a substituted benzene compound) together with either an alkyl halide or an aromatic halide.Type: GrantFiled: June 9, 1997Date of Patent: November 2, 1999Assignee: The Dow Chemical CompanyInventors: Steven A. Costello, Douglas L. Potts, Randall F. Pogue
-
Patent number: 5959169Abstract: Process for the selective removal of aromatic compounds from a hydrocarbon mixture by contacting the mixture in presence of an olefinic alkylating agent with an alkylation catalyst selected from the group of fluorinated alkyl sulphonic acids movably adsorbed on a silica comprising carrier material.Type: GrantFiled: April 2, 1998Date of Patent: September 28, 1999Assignee: Haldor Topsoe A/SInventor: Sven Ivar Hommeltoft
-
Patent number: 5877383Abstract: A process for the manufacture of a hydrocarbon mixture being rich in middle distillate products with the boiling part range of 175.degree.-360.degree. C. by alkylation of a hydrocarbon feed stock with an olefinic alkylating agent, comprises the steps of contacting a hydrocarbon feedstock and an olefinic alkylating agent with a catalyst composition containing an acid selected from the group of fluorinated alkane sulphonic acids having the general formula: ##STR1## wherein R'=F, Cl, Br, I, H, an alkyl or perfluoro alkyl group,R"=H, alkyl, aryl or a perfluoro alkoxy group, andrecovering a product stream of alkylated hydrocarbons and optionally recycling to the reactor lower isoalkanes being formed during the alkylation.Type: GrantFiled: November 5, 1997Date of Patent: March 2, 1999Assignee: Haldor Topsoe A/SInventors: Sven Ivar Hommeltoft, Annemarie Bauer
-
Patent number: 5849965Abstract: In a multistage process, a relatively unreactive paraffinic substrate is alkylated in a primary stage while a more reactive aromatic substrate is alkylated in a secondary stage wherein at least a portion of the effluent from the primary stage is used as a diluent in the secondary stage. The alkylation reaction in each stage is catalyzed by an acid catalyst which is adsorbed on a particulate solid support.Type: GrantFiled: May 22, 1997Date of Patent: December 15, 1998Assignee: Amoco CorporationInventors: Robert L. Mehlberg, George A. Huff, Jr.
-
Patent number: 5824832Abstract: A low temperature molten ionic liquid composition comprising a mixture of a metal halide and an alkyl-containing amine hydrohalide salt can be used in linear alkylbenzene formation. The metal halide is a covalently bonded metal halide which can contain a metal selected from the group comprised of aluminum, gallium, iron, copper, zinc, and indium, and is most preferably aluminum trichloride. The alkyl-containing amine hydrohalide salt may contain up to three alkyl groups, which are preferably lower alkyl, such as methyl and ethyl.Type: GrantFiled: March 27, 1997Date of Patent: October 20, 1998Assignee: Akzo Nobel NVInventors: Fawzy G. Sherif, Lieh-Jiun Shyu, Carl C. Greco
-
Patent number: 5750818Abstract: A process for cooling unreacted hydrocarbon substrate that is recycled to an alkylation reactor and for minimizing the concentration of lower boiling hydrocarbons in such recycle.Type: GrantFiled: June 20, 1996Date of Patent: May 12, 1998Assignee: Amoco CorporationInventors: Robert L. Mehlberg, James B. Young
-
Patent number: 5663474Abstract: This invention relates to catalysts for alkylation reactions and their preparation. More particularly, the invention relates to an alkylation process using a hydrogen fluoride-containing alkylation catalyst, which catalyst may be safely and easily handled, transported, and stored.Type: GrantFiled: March 7, 1996Date of Patent: September 2, 1997Assignee: AlliedSignal Inc.Inventors: Hang Thanh Pham, Robert Pratt, Charles Lewis Redmon, John James Thompson, Michael Van Der Puy, Rajiv Ratna Singh, William James Hague, Harold John Kieta, Matthew Hermes Luly, Jeffrey Warren McKown
-
Patent number: 5648580Abstract: A supported Lewis acid catalyst system for catalyzing hydrocarbon conversion reactions including cationic polymerization, alkylation, isomerization and cracking reactions is disclosed, wherein the catalyst system comprises an inorganic oxide support having immobilized thereon at least one relatively strong Lewis acid and at least one relatively weak Lewis acid.Type: GrantFiled: September 4, 1996Date of Patent: July 15, 1997Assignee: Exxon Chemical Patents Inc.Inventors: Frank Joung-yei Chen, Christophe Le Deore, Roger Spitz, Alan Guyot
-
Patent number: 5600050Abstract: Disclosed is a modified zeolite catalyst for the liquid phase alkylation and transalkylation of benzene comprising 30 to 70% by weight of H-beta zeolite with a silicon to aluminium ratio of 20 to 40; 0.5 to 10% by weight of halogen; and .gamma.-Al.sub.2 O.sub.3 of the balance. Also disclosed a method for preparing the said catalyst comprising adding a halogen-containing compound to a mixture of H-beta zeolite and a precursor of .gamma.-Al.sub.2 O.sub.3, forming followed by calcining.Type: GrantFiled: December 14, 1994Date of Patent: February 4, 1997Assignees: ChinaPetro-Chemical Corp., Research Institute of Petroleum ProcessingInventors: Zhiyuan Huang, Suxian Tian, Yali Xu, Bin Zhu, Weidong Wang, Fengmei Zhang, Xie Wang
-
Patent number: 5498820Abstract: Process for the alkylation of a hydrocarbon feedstock with an olefinic alkylating agent comprising the steps of contacting the hydrocarbon feedstock and the olefinic alkylating agent with a fluorinated alkoxy alkane sulphonic acid catalyst for a sufficient time and recovering a product stream of alkylated hydrocarbons.Type: GrantFiled: August 9, 1994Date of Patent: March 12, 1996Assignee: Haldor Topsoe A/SInventor: Sven I. Hommeltoft
-
Patent number: 5488193Abstract: A process for reducing the mutagenicity of a polynuclear aromatic containing material containing from three to seven fused aromatic rings, especially a hydrocarbon refinery stream. The process reduces the initial mutagenicity index to a lower value by alkylating the compound with an alkylating agent which introduces an alkyl substituent having from three to five carbon atoms into the aromatic compound in the presence of an acid catalyst under alkylation conditions.Type: GrantFiled: January 25, 1995Date of Patent: January 30, 1996Assignee: Mobil Oil CorporationInventors: Carl R. Mackerer, Timothy A. Roy, Gary R. Blackburn
-
Patent number: 5386072Abstract: Process for the preparation of linear alkylbenzenes, wherein the benzene is reacted, in the presence of aluminum chloride or aluminum in powder form, with a mixture composed of C.sub.7 -C.sub.20 n-olefins and C.sub.7 -C.sub.20 chloroparaffins, with a molar ratio n-olefins/chloroparaffins between 70:30 and 99:1.Type: GrantFiled: January 29, 1993Date of Patent: January 31, 1995Assignee: Enichem Augusta S.p.A.Inventors: Pierluigi Cozzi, Giuseppe Giuffrida, Tullio Pellizzon, Pierino Radici
-
Patent number: 5344997Abstract: A fluorided silica-alumina catalyst, particularly one with a silica:alumina ratio in the range of 1:1-9:1 containing from 1 to 6 weight percent fluoride, is particularly effective in the liquid phase alkylation of benzene by linear olefins to produce linear alkyl benzenes at temperatures no greater than 140.degree. C. These catalysts also are effective in the liquid phase alkylation of alkylatable aromatics generally with a variety of alkylating agents, including olefins, alcohols, and alkyl halides.Type: GrantFiled: December 14, 1992Date of Patent: September 6, 1994Assignee: UOPInventor: Joseph A. Kocal
-
Patent number: 5324695Abstract: A process for regenerating deactivated metal oxide catalysts comprising at least one of the elements antimony, iron, bismuth, molybdenum, vanadium, tungsten and/or uranium and a peptizable carrier, comprises the steps of:a) grinding the metal oxide catalyst in the presence of water to a particle size of from 10 nm to 10 .mu.m,b) heating the aqueous suspension of the metal oxide catalyst of stage a) to 30-100.degree. C. and adding an acid which peptizes the carrier,c) spray drying the acidic suspension of the metal oxide catalyst,d) heating the fluidizable metal oxide catalyst particles of stage c) to 500.degree.-850.degree. C.Type: GrantFiled: January 8, 1993Date of Patent: June 28, 1994Assignee: BASF AktiengesellschaftInventors: Lothar Karrer, Klaus Herzog, Heinrich Aichinger, Hans-Dieter Eichhorn, Guenter Herrmann
-
Patent number: 5324877Abstract: A composition useful for catalyzing alkylation and transalkylation reactions comprises a molecular sieve having alkylation and/or transalkylation activity, an inorganic refractory oxide component and greater than 3.5 weight percent water. Such a catalyst has been found to maintain a long life when used to produce ethylbenzene in an integrated process in which benzene is alkylated with ethylene and transalkylated with diethylbenzene. The catalyst can also be used to produce cumene via an integrated process in which benzene is alkylated with propylene and transalkylated with diisopropylbenzene.Type: GrantFiled: April 22, 1993Date of Patent: June 28, 1994Assignee: Union Oil Company of CaliforniaInventors: Martin West, Suheil F. Abdo