Using Metal, Metal Oxide, Or Hydroxide Catalyst Patents (Class 585/467)
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Patent number: 7842277Abstract: This disclosure relates to a crystalline MCM-22 family molecular sieve composition having, in its as-synthesized form, an X-ray diffraction pattern including a peak at d-spacing maximum of 12.33±0.23 Angstroms, a distinguishable peak at a d-spacing maximum between 12.57 to about 14.17 Angstroms and a non-discrete peak at a d-spacing maximum between 8.8 to 11. Angstroms, wherein the peak intensity of the d-spacing maximum between 12.57 to about 14.17 Angstroms is less than 90% of the peak intensity of the d-spacing maximum at 12.33±0.23 Angstroms. This disclosure also relates to methods of making the crystalline MCM-22 family molecular sieve composition.Type: GrantFiled: July 13, 2007Date of Patent: November 30, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Wieslaw J. Roth, Machteld M. Mertens, Els C. De Clerck, Ivy D. Johnson
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Publication number: 20100298598Abstract: This disclosure provides a method of preparing a crystalline molecular sieve comprising: (a) providing a reaction mixture comprising at least one source of ions of tetravalent element Y, at least one source of alkali metal hydroxide, water, optionally at least one seed crystal, and optionally at least one source of ions of trivalent element X, the reaction mixture having the following molar composition: Y:X2=2 to infinity, preferably from about 2 to about 1000, OH?:Y=0.001 to 2, preferably from 0.1 to 1, M+:Y=0.001 to 2, preferably from 0.Type: ApplicationFiled: September 30, 2008Publication date: November 25, 2010Inventors: Wenyih Frank Lai, Robert Ellis Kay
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Patent number: 7834227Abstract: The present invention provides a reactor system having: (1) a first reactor receiving an oxygenate component and a hydrocarbon component and capable of converting the oxygenate component into a light olefin and the hydrocarbon component into alkyl aromatic compounds; (2) a separator system for providing a first product stream containing a C3 olefin, a second stream containing a C7 aromatic, and a third stream containing C8 aromatic compounds; (3) a first line connecting the separator to the inlet of the first reactor for conveying the second stream to the first reactor; (4) a second line in fluid communication with the separator system for conveying the C3 olefin to a propylene recovery unit, and (4) a third line in fluid communication with the separator system for conveying the C8 aromatic compounds to a xylene recovery unit.Type: GrantFiled: December 13, 2007Date of Patent: November 16, 2010Assignee: UOP LLCInventors: Andrea G. Bozzano, Timur V. Voskoboynikov, Tom N. Kalnes, Paul T. Barger, Gavin P. Towler, Bryan K. Glover
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Publication number: 20100280298Abstract: The present invention provides an improved process for conversion of feedstock comprising an alkylatable aromatic compound and an alkylating agent to desired alkylaromatic conversion product under at least partial liquid phase conversion conditions in the presence of specific catalyst comprising a porous crystalline material, e.g., a crystalline aluminosilicate, and binder in the ratio of crystal/binder of from about 20/80 to about 60/40. The porous crystalline material of the catalyst may comprise a crystalline molecular sieve having the structure of Beta, an MCM-22 family material, e.g.Type: ApplicationFiled: July 13, 2010Publication date: November 4, 2010Inventors: Michael C. Clark, Frederick Y. Lo, Christine N. Elia, Matthew J. Vincent
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Patent number: 7816574Abstract: The present disclosure provides a process for selectively producing a desired monoalkylated aromatic compound comprising the step of contacting in a reaction zone an alkylatable aromatic compound with an alkylating agent in the presence of catalyst comprising a porous crystalline material under at least partial liquid phase conditions, said catalyst manufactured from extrudate to comprise catalytic particulate material of from about 125 microns to about 790 microns in size, having an Effectiveness Factor increased from about 25% to about 750% from that of the original extrudate, and having an external surface area to volume ratio of greater than about 79 cm?1.Type: GrantFiled: January 25, 2008Date of Patent: October 19, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Michael C. Clark, Christine N. Elia, Frederick Y. Lo, Matthew J. Vincent
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Patent number: 7816573Abstract: The invention relates to a process for converting hydrocarbons with a catalyst comprising a crystalline molecular sieve composition which is obtainable by crystallizing a pre-formed extrudate mixture in a reactor and, during crystallization, removing excess alkali metal hydroxide from the pre-formed extrudate. The pre-formed extrudate mixture comprises at least one source of ions of tetravalent element Y, at least one source of alkali metal hydroxide, water, optionally at least one seed crystal, and optionally at least one source of ions of trivalent element X. The reaction mixture has the following mole composition: Y:X2=10 to infinity; OH?:Y=0.001 to 2; and M+:Y=0.001 to 2; wherein M is an alkali metal. The amount of water in the mixture is at least sufficient to permit extrusion of said reaction mixture.Type: GrantFiled: January 26, 2007Date of Patent: October 19, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Wenyih Frank Lai, Robert Ellis Kay, Christine N. Elia, Frederick Y. Lo, David O. Marler
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Patent number: 7812205Abstract: A process is disclosed wherein a layered catalyst is used for the alkylation of benzene with a substantially linear olefin. The layered catalyst allows for shifting the operating conditions to increase the alkylation of benzene, while reducing the amount of isomerization of the alkyl group. This is important for increasing the quality of the alkylbenzene by increasing the linearity of the alkylbenzene.Type: GrantFiled: October 12, 2007Date of Patent: October 12, 2010Assignee: UOP LLCInventors: Deng-Yang Jan, Mark G. Riley
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Patent number: 7812204Abstract: The invention relates to a multi-step chemical transformation process for the production of 2,6-dimethylnaphthalene starting from one or more naphthalene hydrocarbons or hydrocarbon blends containing the same, one or more benzene hydrocarbons and, optionally, a methylating agent reacted in the presence of a catalyst containing a zeolite belonging to the MTW structural group, where hydrogen is fed in at least one of the steps.Type: GrantFiled: November 30, 2005Date of Patent: October 12, 2010Assignee: Polimeri Europa S.p.A.Inventors: Gianni Girotti, Franco Rivetti, Renzo Bignazzi
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Hydrocarbon Conversion Processes Using the UZM-27 Family of Crystalline Aluminosilicate Compositions
Publication number: 20100249478Abstract: This invention relates to hydrocarbon conversion processes using a new family of crystalline aluminosilicate compositions designated the UZM-27 family. These include the UZM-27 and UZM-27HS which have unique structures. UZM-27 is a microporous composition which has a three-dimensional structure and is obtained by calcining the as synthesized form designated UZM-27P. UZM-27HS is a high silica version of UZM-27 and includes an essentially pure silica version of UZM-27.Type: ApplicationFiled: June 10, 2010Publication date: September 30, 2010Applicant: UOP LLCInventors: Mark A. Miller, Gregory J. Lewis -
Patent number: 7803976Abstract: A process for alkylation of an alkylatable aromatic compound to produce a monoalkylated aromatic compound, comprising the steps of: (a) providing at least one reaction zone having a water content with at least one alkylation catalyst having an activity and a selectivity for said monoalkylated benzene, said alkylation catalyst comprising a porous crystalline molecular sieve of a MCM-22 family material, said MCM-22 family material is characterized by having an X-ray diffraction pattern including d-spacing maxima at 12.4±0.25, 3.57±0.07 and 3.42±0.Type: GrantFiled: December 7, 2009Date of Patent: September 28, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventor: Michael C. Clark
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Patent number: 7799962Abstract: This invention relates to a process for the selective alkylation of toluene and/or benzene with an oxygen-containing alkylation agent. In particular, the process uses a selectivated molecular sieve which has been modified by the addition of a hydrogenation component, wherein at least one of the following conditions is met: (a) the selectivated molecular sieve has an alpha value of less than 100 prior to the addition of the hydrogenation component, or (b) the selectivated and hydrogenated catalyst has an alpha value of less than 100. The process of this invention provides high selectivity for the alkylated product while reducing catalyst degradation.Type: GrantFiled: September 10, 2008Date of Patent: September 21, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Jihad Mohammed Dakka, John Scott Buchanan, Robert Andrew Crane, Christine Nicole Elia, Xiaobing Feng, Larry Lee Iaccino, Gary David Mohr, Brenda Anne Raich, Jose′ Guadalupe Santiesteban, Lei Zhang
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Patent number: 7799961Abstract: A process for producing an alkylated aromatic compound from polyalkylated aromatic compound(s) having bi-alkylated aromatic compound(s) and tri-alkylated aromatic compound(s), comprising the step of contacting alkylatable aromatic compound(s) with the polyalkylated aromatic compound(s) at a transalkylation condition in the presence of a transalkylation catalyst. The transalkylation catalyst has high activity sufficient to achieve a ratio of bi-alkylated aromatic compound(s) conversion over tri-alkylated aromatic compound(s) conversion in a range of from about 0.5 to about 2.5.Type: GrantFiled: February 24, 2006Date of Patent: September 21, 2010Assignees: ExxonMobil Chemical Patents Inc., Stone & Webster, Inc.Inventors: Michael C. Clark, Vijay Nanda, Carlos N. Lopez, Brian Maerz, Chung-Ming Chi
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Patent number: 7795487Abstract: Disclosed herein is a process and catalyst for producing a monoalkylated aromatic compound from a polyalkylated aromatic compound, comprising the step of contacting an alkylatable aromatic compound with a polyalkylated aromatic compound under at least partial liquid phase conditions in the presence of a zeolite beta catalyst having a phosphorus content in the range of 0.001 wt. % to 10.0 wt. % of said catalyst, to provide a product which comprises a monoalkylated aromatic compound.Type: GrantFiled: February 27, 2006Date of Patent: September 14, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Michael C. Clark, Jane C. Cheng, Ajit B. Dandekar
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Patent number: 7790939Abstract: A process for alkylation or transalkylation of an alkylatable aromatic compound having reactive impurities with an alkylating agent to produce a monoalkylated aromatic compound, comprising the steps of contacting at least a portion of said alkylatable aromatic compounds and said alkylating agent with a first molecular sieve catalyst in a guard bed under suitable conditions to remove said reactive impurities and form a first effluent comprising monoalkylated aromatic compound, unreacted alkylatable aromatic compounds and unreacted alkylating agent; contacting said first effluent with a second molecular sieve catalyst different from said first molecular sieve catalyst in said reaction zone under suitable alkylation or transalkylation conditions to produce additional said monoalkylated aromatic compounds; and maintaining said water content from about 1 wppm to about 10 wt.Type: GrantFiled: December 2, 2009Date of Patent: September 7, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Michael C. Clark, Vijay Nanda
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Patent number: 7790936Abstract: The present invention provides a process in which a ketone is directly reacted with an aromatic compound in a single reaction step to obtain the corresponding alkylated aromatic compound in a higher yield. By reacting an aromatic compound with a ketone and hydrogen in the presence of a solid acid substance and a catalyst composition containing Cu and Zn in a ratio of Zn to Cu ranging from 0.70 to 1.60 (atomic ratio), the corresponding alkylated aromatic compound is prepared.Type: GrantFiled: February 12, 2008Date of Patent: September 7, 2010Assignee: Mitsui Chemicals, Inc.Inventors: Toshihiro Takai, Michiaki Umeno, Shinobu Aoki, Terunori Fujita, Tsuneyuki Ohkubo
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Patent number: 7790940Abstract: The present invention provides an improved process for conversion of feedstock comprising an alkylatable aromatic compound and an alkylating agent to desired alkylaromatic conversion product under at least partial liquid phase conversion conditions in the presence of specific catalyst comprising a porous crystalline material, e.g. a crystalline aluminosilicate, and binder in the ratio of crystal/binder of from about 20/80 to about 60/40. The porous crystalline material of the catalyst may comprise a crystalline molecular sieve having the structure of Beta, an MCM-22 family material, e.g. MCM-49, or a mixture thereof.Type: GrantFiled: June 21, 2007Date of Patent: September 7, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Michael C. Clark, Frederick Y. Lo, Christine N. Elia, Matthew J. Vincent
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Patent number: 7777087Abstract: A process is disclosed for producing an alkylaromatic compound in a multistage reaction system comprising at least first and second series-connected alkylation reaction zones, each containing an alkylation catalyst. A first feed comprising an alkylatable aromatic compound and a second feed comprising an alkene are introduced into the first alkylation reaction zone. The first and second alkylation reaction zones are operated under conditions of temperature and pressure effective to cause alkylation of the aromatic compound with the alkene in the presence of the alkylation catalyst, the temperature and pressure being such that the aromatic compound is at least partly in the liquid phase. The alkylation catalyst in the first alkylation reaction zone, which may be a reactor guard bed, has more acid sites per unit volume of catalyst than the alkylation catalyst in the second reaction zone.Type: GrantFiled: November 23, 2009Date of Patent: August 17, 2010Assignees: ExxonMobil Chemical Patents Inc., Stone & Webster, Inc.Inventors: Michael C. Clark, Vijay Nanda, Chung-Ming Chi, Maruti Bhandarkar, Brian Maerz, Matthew J. Vincent
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Patent number: 7772448Abstract: A process is described for producing an alkylaromatic compound in a multistage reaction system comprising at least first and second series-connected alkylation reaction zones each containing an alkylation catalyst. A first feed comprising an alkylatable aromatic compound and a second feed comprising an alkene and one or more alkanes are introduced into said first alkylation reaction zone. The operating conditions, e.g. temperature and pressure, of the first alkylation reaction zone are controlled effective to cause the alkylatable aromatic compound to be partly in the vapor phase and partly in the liquid phase, and the ratio of the volume of liquid to the volume of vapor of the feed in each zone to be from about 0.1 to about 10. The aromatic compound and the alkene of the feed are reacted in the presence of the alkylation catalyst to form an effluent comprising the alkylaromatic compound, unreacted alkylatable aromatic compound, any unreacted alkene and the alkane.Type: GrantFiled: January 28, 2009Date of Patent: August 10, 2010Assignees: Badger Licensing LLC, ExxonMobil Chemical Patents Inc.Inventors: Michael C. Clark, Brian Maerz
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Hydrocarbon conversion processes using the UZM-27 family of crystalline aluminosilicate compositions
Patent number: 7763764Abstract: This invention relates to hydrocarbon conversion processes using a new family of crystalline aluminosilicate compositions designated the UZM-27 family. These include the UZM-27 and UZM-27HS which have unique structures. UZM-27 is a microporous composition which has a three-dimensional structure and is obtained by calcining the as synthesized form designated UZM-27P. UZM-27HS is a high silica version of UZM-27 and includes an essentially pure silica version of UZM-27.Type: GrantFiled: December 18, 2008Date of Patent: July 27, 2010Assignee: UOP LLCInventors: Mark A. Miller, Gregory J. Lewis -
Publication number: 20100179359Abstract: A catalyst useful for the alkylation or transalkylation of aromatic compounds is disclosed. The catalyst is an acid-treated zeolitic catalyst produced by a process including contacting an acidic zeolitic catalyst comprising surface non-framework aluminum and framework aluminum with an organic dibasic acid at a catalyst to acid weight ratio in the range from about 2:1 to about 20:1 and at a temperature in the range from about 50° C. to about 100° C. to selectively remove at least a portion of the surface non-framework aluminum. The resulting catalyst may have a measured first-order rate constant, kcum, for the alkylation of benzene with propylene to form cumene, of at least 2.0 cm3/s g.Type: ApplicationFiled: January 14, 2009Publication date: July 15, 2010Applicant: LUMMUS TECHNOLOGY INC.Inventors: Chuen Yuan Yeh, Ruozhi Song, Anne Mae Gaffney, Tadeusz Langner, Marshall J. Margolis
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Patent number: 7745676Abstract: A process is described for producing an alkylaromatic compound, in which a first feed comprising an alkylatable aromatic compound and a second feed comprising an alkene are introduced into a first alkylation reaction zone comprising a first alkylation catalyst. The first alkylation reaction zone is operated under conditions effective to cause alkylation of the alkylatable aromatic compound by the alkene to produce said alkylaromatic compound, the conditions being such that the alkylatable aromatic compound is at least predominantly in the vapor phase. A first effluent comprising the alkylaromatic compound and unreacted alkylatable aromatic compound is withdrawn from the first alkylation reaction zone and at least part of the unreacted alkylatable aromatic compound is treated to remove catalyst poisons therefrom and produce a treated unreacted alkylatable aromatic stream.Type: GrantFiled: July 30, 2007Date of Patent: June 29, 2010Assignees: ExxonMobil Chemical Patents Inc., Stone & Webster, Inc.Inventors: Michael C. Clark, Vijay Nanda, Maruti Bhandarkar, Joseph C. Peters, Chung-Ming Chi, Brian Maerz
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Patent number: 7745674Abstract: A process for alkylation of benzene, including: feeding benzene, a polyalkylate, and a catalyst to a reactor comprising a first and a second reaction zone; reacting the benzene and the polyalkylate in the first reaction zone under transalkylation conditions to form a monoalkylate product; feeding a C2-C4 olefin to the reactor intermediate the first and second reaction zones; reacting benzene and the C2-C4 olefin in the second reaction zone under alkylation conditions to form additional monoalkylate product; recovering an effluent from the reactor, wherein the effluent comprises benzene, the monoalkylate product, any unreacted C2-C4 olefins, heavy hydrocarbons, and the catalyst; separating the catalyst from the effluent; separating the benzene from the monoalkylate product and the heavy hydrocarbons within the liquid effluent; separating the monoalkylate product from the heavy hydrocarbons within the liquid effluent; and recovering the monoalkylate product.Type: GrantFiled: August 20, 2008Date of Patent: June 29, 2010Assignee: Catalytic Distillation TechnologiesInventors: Christopher C. Boyer, Lawrence A. Smith, Jr.
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Patent number: 7737314Abstract: A process for producing an ethylbenzene product having a purity of at least 99.50 percent based on the weight of ethylbenzene present in the product by the ethylation of the benzene present in non-extracted feed, e.g., non-extracted hydrocarbon composition. The non-extracted feed is substantially free of both C4? hydrocarbons and the C7+ aromatic hydrocarbons and contains benzene and benzene coboilers. The process is carried out in the liquid phase, in the presence of an acid-active catalyst containing MCM-22 family molecular sieve, and under specified conditions.Type: GrantFiled: February 12, 2007Date of Patent: June 15, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Stephen H. Brown, Nick A. Collins
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Patent number: 7737313Abstract: A catalyst composition comprises (a) a MCM-22 family molecular sieve; and (b) a binder, wherein the MCM-22 family molecular sieve is characterized by an average crystal agglomerate size of less than or equal to 16 microns. The catalyst composition may further have a second molecular sieve having a Constraint Index of less than 12, e.g., less than 2. Examples of molecular sieve useful for this disclosure are a MCM-22 family molecular sieve, zeolite Y, and zeolite Beta. The catalyst composition may be used for the process of alkylation or transalkylation of an alkylatable aromatic compound with an alkylating agent.Type: GrantFiled: December 21, 2006Date of Patent: June 15, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Christine N. Elia, Frederick Y. Lo, Michael C. Clark, C. Morris Smith, Michael Hryniszak, Mohan Kalyanaraman
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Patent number: 7731839Abstract: A process for reducing the Bromine Index of a hydrocarbon feedstock, the process comprising the step of contacting the hydrocarbon feedstock with a catalyst at conversion conditions, wherein the catalyst includes at least one molecular sieve and at least one clay, and wherein said catalyst is sufficient to reduce more than 50% of the Bromine Index of a hydrocarbon feedstock.Type: GrantFiled: May 27, 2005Date of Patent: June 8, 2010Assignee: Exxonmobil Chemical Patents Inc.Inventors: Stephen Harold Brown, Gary David Mohr, Michael Christopher Clark, Selma Lawrence
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Patent number: 7718836Abstract: The present invention relates to an integrated process for the production of high purity 2,6-dimethylnaphthalene starting from hydrocarbon mixtures containing naphthalene and/or isomers of methylnaphthalene and/or isomers of dimethylnaphthalene and/or isomers of polymethylnaphthalene, and from an alkylating agent, preferably methanol, reacted in the presence of a methylated benzene solvent or mixture of various methylated benzene solvents, preferably selected from toluene, xylene and trimethylbenzene, and a catalyst consisting of ZSM-12 zeolite and an inorganic ligand.Type: GrantFiled: June 6, 2002Date of Patent: May 18, 2010Assignees: ENI S.p.A., Polimeri Europa S.p.A.Inventors: Gianni Girotti, Giuseppe Terzoni, Oscar Cappellazzo, Renzo Bignazzi, Giannino Pazzuconi
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Patent number: 7718837Abstract: A metal-modified alkylation catalyst including a metal/zeolite is provided where the metal is one or two selected from the group consisting of yttrium and a rare earth of the lanthanide series other than cerium. Where two metals are used, one may be Ce or La. The metal-promoted zeolite is useful as a molecular sieve aromatic alkylation catalyst for the production of ethylbenzene by the ethylation of benzene in the liquid phase or critical phase. An alkylation product is produced containing ethylbenzene as a primary product with the attendant production of heavier alkylated by-products of no more than 10-60 wt % of the ethylbenzene.Type: GrantFiled: June 24, 2008Date of Patent: May 18, 2010Assignee: Fina Technology, Inc.Inventors: Kevin Kelly, James Butler
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Patent number: 7709692Abstract: The present invention relates to a process for the selective production of para-diethyl benzene from a mixed aromatic feedstock containing ethyl benzene and at least one other aromatic compound selected from benzene, alkylated benzene having alkyl group with carbon number 1 to 6, mono-alkyl aromatics, dialkyl aromatics, trialkyl aromatics, tetraalkyl aromatics, pentaalkyl aromatics, hexaalkyl aromatics, containing side chains having 1 to 6 carbon atoms, and any mixtures thereof, the process comprising of (a) alkylating the feedstock under alkylating conditions, over a selectivated metallosilicate composite catalyst; and (b) recovering a product stream containing at least 95 wt % para-diethyl benzene, the product stream being substantially free from other isomers of diethylbenzene, C8 aromatics, C9 aromatics, C10+ heavy aromatics other than diethyl benzene isomers, sulphur, halogen, olefinic compound and carbonyl compounds.Type: GrantFiled: January 17, 2006Date of Patent: May 4, 2010Assignee: Indian Petrochemicals Corporation LimitedInventors: Jagannath Das, Pavagada Raghavendra Char, Arun Gurudath Basrur, Anand Bhimarao Halgeri, Sanjay Ramakrishna Rinke, Laxmilal Jain, Avinash Ramchandra Saple, Mantri Ganapati
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Patent number: 7700511Abstract: A process for converting polyalkylaromatics to monoalkylaromatics, particularly cumene, in the presence of a modified LZ-210 zeolite catalyst is disclosed. The process attains greater selectivity, reduced formation of undesired byproducts, and increased activity.Type: GrantFiled: March 11, 2009Date of Patent: April 20, 2010Assignee: UOP LLCInventors: Thomas M. Reynolds, Christopher J. Garrett, Deng-Yang Jan, Robert J. Schmidt, Mathias P. Koljack
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Patent number: 7696394Abstract: Methods and processes for reducing alkylation catalyst poisoning are described herein.Type: GrantFiled: December 3, 2008Date of Patent: April 13, 2010Assignee: Fina Technology, Inc.Inventors: James R. Butler, Marcus Ledoux, Michael Betbeze
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Publication number: 20100081853Abstract: A process for alkylation of an alkylatable aromatic compound to produce a monoalkylated aromatic compound, comprising the steps of: (a) providing at least one reaction zone having a water content with at least one alkylation catalyst having an activity and a selectivity for said monoalkylated benzene, said alkylation catalyst comprising a porous crystalline molecular sieve of a MCM-22 family material, said MCM-22 family material is characterized by having an X-ray diffraction pattern including d-spacing maxima at 12.4±0.25, 3.57±0.07 and 3.42±0.Type: ApplicationFiled: December 7, 2009Publication date: April 1, 2010Inventor: Michael C Clark
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Publication number: 20100081856Abstract: A method of producing an alkylaromatic by the alkylation of an aromatic with an alkylating agent, such as producing ethylbenzene by an alkylation reaction of benzene, is disclosed. The method includes using an H-beta catalyst to minimize process upsets due to alkylation catalyst deactivation and the resulting catalyst regeneration or replacement. The H-beta catalyst can be used in a preliminary alkylation reactor that is located upstream of the primary alkylation reactor. The H-beta catalyst used in a preliminary alkylation reactor can reduce the deactivation of the catalyst in the primary alkylation reactor.Type: ApplicationFiled: September 28, 2009Publication date: April 1, 2010Applicant: FINA TECHNOLOGY, INC.Inventor: James R. Butler
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Patent number: 7683228Abstract: A process for producing an cumene product having a purity of at least 99.50 percent based on the weight of cumene present in the product by the propylation of the benzene present in non-extracted hydrocarbon composition feed, e.g., non-extracted reformate. The non-extracted hydrocarbon composition feed is substantially free of both C4? hydrocarbons and the C7+ aromatic hydrocarbons and contains benzene and benzene coboilers. The process is carried out in the liquid phase, in the presence of an acid-active catalyst containing MCM-22 family molecular sieve, and under specified conditions.Type: GrantFiled: February 12, 2007Date of Patent: March 23, 2010Assignee: Exxonmobil Chemical Patents Inc.Inventor: Stephen Harold Brown
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Patent number: 7674942Abstract: A zeolite catalyst is prepared by treating a zeolite with a phosphorus compound to form a phosphorus-treated zeolite. The phosphorus-treated zeolite is heated to a temperature of about 300° C. or higher and combined with an inorganic oxide binder material to form a zeolite-binder mixture. The zeolite-binder mixture is heated to a temperature of about 400° C. or higher to form a bound zeolite catalyst. The bound zeolite may exhibit at least two 31P MAS NMR peaks with maxima at from about 0 to about ?55 ppm, with at least one peak having a maximum at from about ?40 to about ?50 ppm. Zeolites containing 10-oxygen ring pores that have been prepared in such a way may be used in aromatic alkylation by contacting the bound zeolite catalyst with an aromatic alkylation feed of an aromatic compound and an alkylating agent under reaction conditions suitable for aromatic alkylation.Type: GrantFiled: March 25, 2008Date of Patent: March 9, 2010Assignee: Saudi Basic Industries CorporationInventors: Ashim Kumar Ghosh, Neeta Kulkarni, Pamela Harvey
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Publication number: 20100056835Abstract: 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: ApplicationFiled: November 10, 2009Publication date: March 4, 2010Inventors: Ajit B. Dandekar, Michael Hryniszak, David Lawrence Stern
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Patent number: 7671248Abstract: A process for producing sec-butylbenzene comprises contacting a feed comprising benzene and ethylene under alkylation conditions with catalyst comprising (i) a molecular sieve having an X-ray diffraction pattern including d-spacing maxima at 12.4±0.25, 6.9±0.15, 3.57±0.07 and 3.42±0.07 Angstrom and (ii) at least one metal selected from Group 10 of the Periodic Table of Elements to produce an alkylation effluent comprising sec-butylbenzene.Type: GrantFiled: August 5, 2005Date of Patent: March 2, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Ajit B. Dandekar, John P. McWilliams, Thomas Francis Degnan, Jr., Michael Hryniszak
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Patent number: 7663011Abstract: A process for treating organic compounds includes providing a composition which includes a substantially mesoporous structure of refractory oxide containing at least 97% by volume of pores having a pore size ranging from about 15 ? to about 30 ? and having a micropore volume of at least about 0.01 cc/g, wherein the mesoporous structure has incorporated therewith at least about 0.02% by weight of at least one catalytically and/or chemically active heteroatom selected from the group consisting of Al, Ti, V, Cr, Zn, Fe, Sn, Mo, Ga, Ni, Co, In, Zr, Mn, Cu, Mg, Pd, Pt and W, and the catalyst has an X-ray diffraction pattern with one peak at 0.3° to about 3.5° at 2 theta (?). The catalyst is contacted with an organic feed under reaction conditions wherein the treating process is selected from alkylation, acylation, oligomerization, selective oxidation, hydrotreating, isomerization, demetalation, catalytic dewaxing, hydroxylation, hydrogenation, ammoximation, isomerization, dehydrogenation, cracking and adsorption.Type: GrantFiled: August 5, 2005Date of Patent: February 16, 2010Assignee: Lummus Technology Inc.Inventors: Zhiping Shan, Jacobus Cornelis Jansen, Chuen Y. Yeh, Philip J. Angevine, Thomas Maschmeyer, Mohamed S. Hamdy
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Patent number: 7662737Abstract: Disclosed is a bound phosphorus-modified zeolite catalyst. Zeolite is treated with a phosphorus compound to form the phosphorus-treated zeolite. Binder material is treated with a mineral acid prior to being bound with the phosphorus-modified zeolite. The binder material includes inorganic oxide materials, such as alumina, clay, aluminum phosphate and silica-alumina, in particular, a binder of alumina or clay or their combinations. The mineral acid includes hydrochloric acid, nitric acid, phosphoric acid or sulfuric acid. The phosphorus-treated zeolite is combined with the acid-treated inorganic oxide binder material to form a zeolite-binder mixture. Water is added to form an extrudable paste which maybe shaped and is heated to a temperature of about 400° C. or higher to form a bound phosphorus-modified zeolite catalyst.Type: GrantFiled: December 22, 2005Date of Patent: February 16, 2010Assignee: Saudi Basic Industries CorporationInventors: Ashim Kumar Ghosh, Pamela Harvey, Neeta Kulkarni
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Publication number: 20100036184Abstract: This disclosure relates to a catalyst composition comprising (a) a crystalline MCM-49 molecular sieve; and (b) a binder comprising at least 1 wt. % of a titanium compound. In one aspect of this disclosure, the titanium compound comprises at least one of titanium oxide, titanium hydroxide, titanium sulfate, titanium phosphate, or any combination thereof. In another aspect of this disclosure, the catalyst composition further comprises a crystalline MCM-22 family molecular sieve comprising at least one of MCM-22, MCM-36, MCM-49, MCM-56, ITQ-1, ITQ-2, ITQ-30, PSH-3, ERB-1, SSZ-25, or any combination thereof. In other embodiments, this disclosure relates to a process for preparing the catalyst composition of this disclosure, the process comprises (a) providing the crystalline MCM-49 molecular sieve and the binder comprising at least 1 wt. % of a titanium compound to form a mixture; and (b) forming the mixture into the catalyst composition. In a preferred embodiment, the forming step comprises extruding.Type: ApplicationFiled: December 20, 2007Publication date: February 11, 2010Inventors: Christine N. Elia, Frederick Y. Lo, Jeffrey T. Elks, Darryl D. Lacy, Mohan Kalyanaraman
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Patent number: 7655823Abstract: 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: GrantFiled: February 27, 2006Date of Patent: February 2, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventors: Gary D. Mohr, John Scott Buchanan, Robert A. Crane, Jihad M. Dakka, Xiaobing Feng, Larry L. Iaccino, Shifang L. Luo
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Patent number: 7655824Abstract: The alkylation of aromatic compound with acyclic mono-olefin is effected at low aromatic compound to mono-olefin ratios with reduced co-production of heavies. In the processes a small crystal, acidic FAU molecular sieve is used as a catalyst under alkylation conditions. This invention also relates to catalysts containing small crystal, acidic FAU molecular sieve and at least one other acidic catalytic component.Type: GrantFiled: October 16, 2007Date of Patent: February 2, 2010Assignee: UOP LLCInventors: Mark G. Riley, Deng-Yang Jan, Stephen W. Sohn
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Publication number: 20100022812Abstract: The present invention provides an industrially practical process where a ketone and an aromatic compound are directly reacted to obtain a corresponding alkylated aromatic compound in a single reaction step. The process for producing an alkylated aromatic compound is characterized in that it comprises reacting an aromatic compound, a ketone and hydrogen in the presence of a solid acid substance and a catalyst composition comprising at least one metal selected from the group consisting of Co, Re, Ni and a platinum group metal.Type: ApplicationFiled: November 1, 2007Publication date: January 28, 2010Applicant: MITSUI CHEMICALS, INC.Inventors: Toshihiro Takai, Michiaki Umeno, Shinobu Aoki, Terunori Fujita, Tsuneyuki Ohkubo
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Patent number: 7652184Abstract: A process for alkylation of an alkylatable aromatic compound to produce a monoalkylated aromatic compound, comprising the steps of: (a) providing at least one reaction zone having a water content with at least one alkylation catalyst having an activity and a selectivity for said monoalkylated benzene, said alkylation catalyst comprising a porous crystalline molecular sieve of a MCM-22 family material, said MCM-22 family material is characterized by having an X-ray diffraction pattern including d-spacing maxima at 12.4±0.25, 3.57±0.07 and 3.42±0.Type: GrantFiled: August 4, 2008Date of Patent: January 26, 2010Assignee: ExxonMobil Chemical Patents Inc.Inventor: Michael C. Clark
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Patent number: 7649122Abstract: A process for alkylation of an alkylatable aromatic compound to produce a monoalkylated aromatic compound, comprising the steps of (a) contacting at least one the alkylatable aromatic compound and at least one the alkylating agent with at least one molecular sieve catalyst under suitable alkylation or transalkylation conditions in at least one reaction zone, to produce at least one effluent which comprises the monoalkylated aromatic compound, wherein the suitable alkylation or transalkylation conditions comprise a water content being in a range from about 1 wppm to about 10 wt. % based on the combined weight of the alkylatable aromatic compound and the alkylating agent; and (b) maintaining the water content in the reaction zone; wherein the cycle length of the molecular sieve catalyst operated inside the range of the water content is greater than the cycle length of the molecular sieve catalyst operated outside the range of the water content.Type: GrantFiled: November 15, 2006Date of Patent: January 19, 2010Assignee: ExxonMobile Chemical Patents Inc.Inventors: Michael C. Clark, Vijay Nanda
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Patent number: 7638667Abstract: Hydrocarbon conversion processes using a new family of zeolites identified as UZM-8HS are described. The UZM-8HS zeolite are derived from UZM-8 zeolites by treating the UZM-8 with a fluoro-silicate salt, an acid, etc. The UZM-8HS zeolites have unique x-ray diffraction patterns. These zeolites can be used in alkylation of aromatics, transalkylation of aromatics, isomerization of aromatics and alkylation of isoparaffins.Type: GrantFiled: July 13, 2006Date of Patent: December 29, 2009Assignee: UOP LLCInventors: Deng-Yang Jan, Raelynn M. Miller, Mathias P. Koljack, John E. Bauer, Paula L. Bogdan, Gregory J. Lewis, Gregory J. Gajda, Susan C. Koster, Michael G. Gatter, Jaime G. Moscoso
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Patent number: 7638668Abstract: 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: GrantFiled: October 22, 2007Date of Patent: December 29, 2009Assignee: ExxonMobil Chemical Patents Inc.Inventors: Ajit B. Dandekar, Michael Hryniszak, David Lawrence Stern
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Patent number: 7635793Abstract: A catalyst is formed from a phosphorus-containing ZSM-5-type zeolite. The ZSM-5-type zeolite has a silica/alumina molar ratio of at least 200. The phosphorus-containing ZSM-5-type zeolite also has a phosphorus content of at least 8% by weight of zeolite and has multiple phosphorus species exhibited by at least two 31P MAS NMR peaks with maxima at from about 0 to about ?50 ppm. The catalyst may be used in aromatic alkylation by contacting the catalyst with a feed of an aromatic hydrocarbon and an alkylating agent under reaction conditions suitable for aromatic alkylation.Type: GrantFiled: June 19, 2008Date of Patent: December 22, 2009Assignee: Saudi Basic Industries CorporationInventors: Ashim Kumar Ghosh, Neeta Kulkarni, Pamela Harvey
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Publication number: 20090312580Abstract: A process for producing sec-butylbenzene comprises contacting a feed comprising benzene and a C4 alkylating agent under alkylation conditions comprising a temperature of about 110° C. to about 150° C. with a catalyst comprising at least one molecular sieve having an X-ray diffraction pattern including d-spacing maxima at 12.4±0.25, 6.9±0.15, 3.57±0.07 and 3.42±0.07 Angstrom. The sec-butylbenzene can be then oxidized to produce a hydroperoxide and the hydroperoxide decomposed to produce phenol and methyl ethyl ketone.Type: ApplicationFiled: February 8, 2007Publication date: December 17, 2009Inventors: Jane C. Cheng, John S. Buchanan, Jon E. Stanat, Christine N. Elia, Jihad M. Dakka
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Publication number: 20090306446Abstract: A process for producing a monoalkylated aromatic compound in an alkylation reaction zone, said process comprising the steps of: (a) providing a first catalytic particulate material having a ratio of surface area over surface volume ratio greater than about 79 cm?1, (b) providing said alkylation reaction zone with an alkylatable aromatic compound, an alkylating agent, and said first catalytic particulate material; and (c) contacting said alkylatable aromatic compound and said alkylating agent with said catalytic particulate material in said alkylation reaction zone maintained under alkylation conditions, to form a product comprised of said monoalkylated aromatic compound and polyalkylated aromatic compound(s).Type: ApplicationFiled: April 17, 2007Publication date: December 10, 2009Applicant: EXXONMOBIL CHEMICAL PATENTS INC.Inventors: Michael C. Clark, Christine N. Elia, Frederick Y. Lo, Yun-Feng Chang
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Patent number: RE41136Abstract: The present invention relates to a process of preparing dialkylnaphthylenes and polyalkylenenaphthyleneates dialkylnaphthalenes and polyalkylenenaphthalates.Type: GrantFiled: January 24, 2002Date of Patent: February 16, 2010Assignees: Kobe Steel, Ltd, ExxonMobil Chemical Patents, Inc.Inventors: Masahiro Motoyuki, Koji Yamamoto, Ajit Vishwanath Sapre, John Paul McWilliams, Susan Patricia Donnelly