By Ring Opening, Removal, Degradation, Or Shift On Chain Or Other Ring Patents (Class 585/476)
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Patent number: 9815750Abstract: A catalyst for producing monocyclic aromatic hydrocarbons, used for producing monocyclic aromatic hydrocarbons of 6 to 8 carbon number from a feedstock oil having a 10 volume % distillation temperature of at least 140° C. and an end point temperature of not more than 400° C., wherein the catalyst contains a crystalline aluminosilicate, gallium and/or zinc, and phosphorus, the molar ratio between silicon and aluminum (Si/Al ratio) in the crystalline aluminosilicate is not more than 100, the molar ratio between the phosphorus supported on the crystalline aluminosilicate and the aluminum of the crystalline aluminosilicate (P/Al ratio) is not less than 0.01 and not more than 1.0, and the amount of gallium and/or zinc is not more than 1.2% by mass based on the mass of the crystalline aluminosilicate.Type: GrantFiled: August 22, 2014Date of Patent: November 14, 2017Assignee: JX Nippon Oil & Energy CorporationInventors: Shinichiro Yanagawa, Masahide Kobayashi, Yuko Aoki, Kazuaki Hayasaka
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Patent number: 9809507Abstract: A catalyst for producing monocyclic aromatic hydrocarbons of 6 to 8 carbon number from a feedstock oil having a 10 volume % distillation temperature of at least 140° C. and an end point temperature of not more than 400° C., or a feedstock oil having a 10 volume % distillation temperature of at least 140° C. and a 90 volume % distillation temperature of not more than 360° C., wherein the catalyst contains a crystalline aluminosilicate, gallium and/or zinc, and phosphorus, and the amount of phosphorus supported on the crystalline aluminosilicate is within a range from 0.1 to 1.9% by mass based on the mass of the crystalline aluminosilicate; and a method for producing monocyclic aromatic hydrocarbons, the method involving bringing a feedstock oil having a 10 volume % distillation temperature of at least 140° C. and an end point temperature of not more than 400° C., or a feedstock oil having a 10 volume % distillation temperature of at least 140° C.Type: GrantFiled: August 25, 2014Date of Patent: November 7, 2017Assignee: JX Nippon Oil & Energy CorporationInventors: Shinichiro Yanagawa, Masahide Kobayashi, Yuko Aoki, Kazuaki Hayasaka
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Publication number: 20140364667Abstract: A catalyst for producing monocyclic aromatic hydrocarbons of 6 to 8 carbon number from a feedstock oil having a 10 volume % distillation temperature of at least 140° C. and an end point temperature of not more than 400° C., or a feedstock oil having a 10 volume % distillation temperature of at least 140° C. and a 90 volume % distillation temperature of not more than 360° C., wherein the catalyst contains a crystalline aluminosilicate, gallium and/or zinc, and phosphorus, and the amount of phosphorus supported on the crystalline aluminosilicate is within a range from 0.1 to 1.9% by mass based on the mass of the crystalline aluminosilicate; and a method for producing monocyclic aromatic hydrocarbons, the method involving bringing a feedstock oil having a 10 volume % distillation temperature of at least 140° C. and an end point temperature of not more than 400° C., or a feedstock oil having a 10 volume % distillation temperature of at least 140° C.Type: ApplicationFiled: August 25, 2014Publication date: December 11, 2014Applicant: JX Nippon Oil & Energy CorporationInventors: Shinichiro Yanagawa, Masahide Kobayashi, Yuko Aoki, Kazuaki Hayasaka
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Publication number: 20140364666Abstract: A catalyst for producing monocyclic aromatic hydrocarbons, used for producing monocyclic aromatic hydrocarbons of 6 to 8 carbon number from a feedstock oil having a 10 volume % distillation temperature of at least 140° C. and an end point temperature of not more than 400° C., wherein the catalyst contains a crystalline aluminosilicate, gallium and/or zinc, and phosphorus, the molar ratio between silicon and aluminum (Si/Al ratio) in the crystalline aluminosilicate is not more than 100, the molar ratio between the phosphorus supported on the crystalline aluminosilicate and the aluminum of the crystalline aluminosilicate (P/Al ratio) is not less than 0.01 and not more than 1.0, and the amount of gallium and/or zinc is not more than 1.2% by mass based on the mass of the crystalline aluminosilicate.Type: ApplicationFiled: August 22, 2014Publication date: December 11, 2014Inventors: Shinichiro Yanagawa, Masahide Kobayashi, Yuko Aoki, Kazuaki Hayasaka
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Publication number: 20140179968Abstract: A producing method of monocyclic aromatic hydrocarbons in which reaction products including monocyclic aromatic hydrocarbons are produced by bringing an oil feedstock and an aromatic production catalyst into contact with each other, the oil feedstock having a 10 volume % distillation temperature of more than or equal to 140° C. and a 90 volume % distillation temperature of less than or equal to 380° C., the method including the steps of: introducing the oil feedstock into a fluidized-bed reaction apparatus housing the aromatic production catalyst; bringing the oil feedstock and the aromatic production catalyst into contact with each other in the fluidized-bed reaction apparatus; and introducing steam into the fluidized-bed reaction apparatus based on the introducing amount of the oil feedstock per hour.Type: ApplicationFiled: May 24, 2012Publication date: June 26, 2014Applicants: CHIYODA CORPORATION, JX NIPPON OIL & ENERGY CORPORATIONInventors: Shinichiro Yanagawa, Yasuyuki Iwasa, Susumu Yasui, Yoshishige Sugi, Atsushi Fukui, Atsuro Nagumo, Osamu Hirohata
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Publication number: 20140024871Abstract: A method of producing monocyclic aromatic hydrocarbons includes bringing a feedstock oil having a 10 vol % distillation temperature of 140° C. or higher and a 90 vol % distillation temperature of 380° C. or lower, into contact with a catalyst for monocyclic aromatic hydrocarbon production containing a crystalline aluminosilicate, in which a content ratio of monocyclic naphthenobenzenes in the feedstock oil is adjusted to 10 mass % to 90 mass %, by mixing a hydrocarbon oil A having a 10 vol % distillation temperature of 140° C. or higher and a 90 vol % distillation temperature of 380° C. or lower with a hydrocarbon oil B containing more monocyclic naphthenobenzenes than the hydrocarbon oil A.Type: ApplicationFiled: March 23, 2012Publication date: January 23, 2014Applicant: JX NIPPON OIL & ENERGY CORPORATIONInventors: Shinichiro Yanagawa, Masahide Kobayashi, Yasuyuki Iwasa, Ryoji Ida
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Publication number: 20140012055Abstract: A method of producing monocyclic aromatic hydrocarbons includes bringing a light feedstock oil having a 10 vol % distillation temperature of 140° C. to 205° C. and a 90 vol % distillation temperature of 300° C. or lower, which has been prepared from a feedstock oil having a 10 vol % distillation temperature of 140° C. or higher and a 90 vol % distillation temperature of 380° C. or lower, into contact with a catalyst for monocyclic aromatic hydrocarbon production containing a crystalline aluminosilicate, in which a content ratio of monocyclic naphthenobenzenes in the light feedstock oil is adjusted by distillation of the feedstock oil such that the content ratio of monocyclic naphthenobenzenes in the light feedstock oil is higher than a content ratio of monocyclic naphthenobenzenes in the feedstock oil.Type: ApplicationFiled: March 23, 2012Publication date: January 9, 2014Applicant: JX NIPPON OIL & ENERGY CORPORATIONInventors: Shinichiro Yanagawa, Masahide Kobayashi, Ryoji Ida, Yasuyuki Iwasa
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Publication number: 20130289325Abstract: The catalyst for producing aromatic hydrocarbon is for producing monocyclic aromatic hydrocarbon having 6 to 8 carbon number from oil feedstock having a 10 volume % distillation temperature of 140° C. or higher and a 90 volume % distillation temperature of 380° C. or lower and contains crystalline aluminosilicate and phosphorus. A molar ratio (P/Al ratio) between phosphorus contained in the crystalline aluminosilicate and aluminum of the crystalline aluminosilicate is from 0.1 to 1.0. The production method of monocyclic aromatic hydrocarbon is a method of bringing oil feedstock having a 10 volume % distillation temperature of 140° C. or higher and a 90 volume % distillation temperature of 380° C. or lower into contact with the catalyst for producing monocyclic aromatic hydrocarbon.Type: ApplicationFiled: December 28, 2011Publication date: October 31, 2013Applicant: JX NIPPON OIL & ENERGY CORPORATIONInventors: Shinichiro Yanagawa, Masahide Kobayashi, Yasuyuki Iwasa, Ryoji Ida
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Publication number: 20130281755Abstract: The catalyst for producing monocyclic aromatic hydrocarbons is for producing monocyclic aromatic hydrocarbons having 6 to 8 carbon number from oil feedstock having a 10 volume % distillation temperature of 140° C. or higher and a 90 volume % distillation temperature of 380° C. or lower. The catalyst contains crystalline aluminosilicate and a rare earth element, in which the amount of the rare earth element expressed in terms of the element is 0.1 to 10 mass % based on the crystalline aluminosilicate. In the production method of monocyclic aromatic hydrocarbons, oil feed stock having a 10 volume % distillation temperature of 140° C. or higher and a 90 volume % distillation temperature of 380° C. or lower is brought into contact with the catalyst for producing monocyclic aromatic hydrocarbons.Type: ApplicationFiled: December 28, 2011Publication date: October 24, 2013Applicant: JX NIPPON OIL & ENERGY CORPORATIONInventors: Shinichiro Yanagawa, Masahide Kobayashi, Yasuyuki Iwasa, Ryoji Ida
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Publication number: 20130281756Abstract: In the production method of monocyclic aromatic hydrocarbons, oil feedstock having a 10 volume % distillation temperature of 140° C. or higher and a 90 volume % distillation temperature of 380° C. or lower is brought into contact with a catalyst for producing monocyclic aromatic hydrocarbons that includes a mixture containing a first catalyst which contains crystalline aluminosilicate containing gallium and/or zinc and phosphorus and a second catalyst which contains crystalline aluminosilicate containing phosphorus.Type: ApplicationFiled: December 28, 2011Publication date: October 24, 2013Applicant: JX NIPPON OIL & ENERGY CORPORATIONInventors: Shinichiro Yanagawa, Masahide Kobayashi, Yasuyuki Iwasa, Ryoji Ida
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Publication number: 20130267749Abstract: The catalyst for producing monocyclic aromatic hydrocarbons is for producing monocyclic aromatic hydrocarbons having 6 to 8 carbon number from oil feedstock having a 10 volume % distillation temperature of 140° C. or higher and a 90 volume % distillation temperature of 380° C. or lower. The catalyst includes crystalline aluminosilicate, phosphorus, and a binder, and the amount of phosphorus is 0.1 to 10 mass % based on the total mass of the catalyst.Type: ApplicationFiled: December 28, 2011Publication date: October 10, 2013Applicant: JX NIPPON OIL & ENERGY CORPORATIONInventors: Shinichiro Yanagawa, Masahide Kobayashi, Yasuyuki Iwasa
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Publication number: 20130184506Abstract: Disclosed is a method for producing aromatic hydrocarbons including a cracking reforming reaction step of bringing a feedstock having a 10 vol % distillation temperature of 140° C. or higher and a 90 vol % distillation temperature of 380° C. or lower, into contact with a catalyst for monocyclic aromatic hydrocarbon production containing a crystalline aluminosilicate to cause the feedstock to react with the catalyst, and thereby obtaining a product including monocyclic aromatic hydrocarbons having 6 to 8 carbon numbers and a heavy oil fraction having 9 or more carbon numbers; a step of separating the monocyclic aromatic hydrocarbons and the heavy oil fraction from the product obtained from the cracking reforming reaction step; a step of purifying the monocyclic aromatic hydrocarbons separated in the separating step, and collecting the hydrocarbons; and a step of separating naphthalene compounds from the heavy oil fraction separated in the separating step, and collecting the naphthalene compounds.Type: ApplicationFiled: September 14, 2011Publication date: July 18, 2013Applicant: JX NIPPON OIL & ENERGY CORPORATIONInventors: Shinichiro Yanagawa, Ryoji Ida, Masahide Kobayashi, Yasuyuki Iwasa
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Publication number: 20130030232Abstract: A catalyst is provided for production of monocyclic aromatic hydrocarbons having a carbon number of 6 to 8 from feedstock in which a 10 vol % distillation temperature is 140° C. or higher and a 90 vol % distillation temperature is 380° C. or lower. The catalyst contains crystalline aluminosilicate including large-pore zeolite having a 12-membered ring structure, and intermediate-pore zeolite having a 10-membered ring structure.Type: ApplicationFiled: January 20, 2011Publication date: January 31, 2013Applicant: JX NIPPON OIL & ENERGY CORPORATIONInventors: Shinichiro Yanagawa, Masahide Kobayashi, Kazuaki Hayasaka
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Publication number: 20120310024Abstract: In a process for dealkylating a poly-alkylated aromatic compound, a feed comprising at least one poly-alkylated aromatic compound selected from polypropylbenzene, polybutylbenzene, and polycyclohexylbenzene is introduced into a reaction zone. The feed is then contacted in the reaction zone with an acid catalyst under conditions effective to dealkylate at least a portion of the poly-alkylated aromatic compound and produce a first reaction product comprising at least one mono-alkylated aromatic compound.Type: ApplicationFiled: February 3, 2011Publication date: December 6, 2012Inventors: Kun Wang, James R. Lattner
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Publication number: 20100298617Abstract: Disclosed herein is a process and catalyst for producing an ethylbenzene feed from a polyethylbenzene feed, comprising the step of contacting a benzene feed with a polyethylbenzene feed under at least partial liquid phase conditions in the presence of a zeolite beta catalyst having a phosphorus content in the range of 0.01 wt. % to 0.5 wt. % of said catalyst, to provide a product which comprises ethylbenzene.Type: ApplicationFiled: July 29, 2010Publication date: November 25, 2010Inventors: Michael C. Clark, Jane C. Cheng, Ajit B. Dandekar
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Publication number: 20100197970Abstract: A method for producing a norbornene derivative wherein, in the presence of palladium and at least one selected from phosphorus compounds represented by the following General Formulae (1) and (2): [in Formula (1), R1, R2, R3 and R4 each independently represent a hydrogen atom or the like, and R5 and R6 each independently represent a branched chain saturated hydrocarbon group having 3 to 10 carbon atoms or the like], and [in Formula (2), R7 represents a branched chain saturated hydrocarbon group having 3 to 10 carbon atoms], a norbornadiene derivative represented by the following General Formula (3): [in Formula (3), R8, R9, R10, R11 and R12 each independently represent a hydrogen atom or the like, l represents an integer of 0 or 1, m represents an integer of 0 or 1, and n represents an integer of 0 or 1], and a bromine compound represented by the following General Formula (4): [Chemical Formula 4] Br—Z—R13??(4) [in Formula (4), Z represents a phenylene group or the like, and R13Type: ApplicationFiled: July 29, 2008Publication date: August 5, 2010Applicant: Nippon Oil CorporationInventors: Shinichi Komatsu, Toshikatsu Shoko, Tadahiro Kaminade
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Patent number: 7608747Abstract: A process for the selective ring opening of ring-containing hydrocarbons in a feed stream having at least 10% ring-containing hydrocarbons includes contacting the feed stream with a ring opening catalyst containing a metal or a mixture of metals active for the selective ring opening of the ring-containing hydrocarbons on a support material, wherein the support material is a non-crystalline, porous inorganic oxide or mixture of inorganic oxides having at least 97 volume percent interconnected mesopores based on micropores and mesopores, and wherein the ring-containing hydrocarbons have at least one C6 ring and at least one substituent selected from the group consisting of fused 5- or 6-membered rings, alkyl, cycloalkyl and aryl groups.Type: GrantFiled: September 23, 2005Date of Patent: October 27, 2009Assignee: Lummus Technology Inc.Inventors: Bala Ramachandran, Lawrence L. Murrell, Martin Kraus, Zhiping Shan, Philip J. Angevine
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Patent number: 7563359Abstract: An aromatics/naphthalene rich stream obtained by processing heavy gas oil derived from tar sands and cycle oils derived from cracking heavy gas oil may optionally be blended and subjected to a hydrogenation process and a ring opening reaction typically in the presence of a zeolite, alumina, or silica alumina based catalyst which may contain noble metals and or copper or molybdenum to produce paraffinic feedstocks for further chemical processing.Type: GrantFiled: May 17, 2005Date of Patent: July 21, 2009Assignee: Nova Chemical (International) S.A.Inventors: Michael C. Oballa, Andrzej Krzywicki, Sunny Ying-Shing Wong, Anthony Tse, Abdul Alim Fakih
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Patent number: 7358411Abstract: The invention relates to a hydrocracking process involving the steps of reacting a diphenyl alkane having a formulation of R1R2C(Ph)-(C)n(H)m-C(Ph)R3R4 with hydrogen using a catalyst containing a metal selected from the group consisting of Group IB and Group VIII metal compounds, preferably on an acidic support, to produce alkylbenzene(s) having a structure of R1R2C(Ph)R5 and R6(Ph)CR3R4; wherein the total number of carbon atoms for R5 and R6 is equal to n; wherein R1, R2, R3, R4 each is a H or a hydrocarbon group having 1-10 carbon atoms.Type: GrantFiled: June 21, 2004Date of Patent: April 15, 2008Assignee: Shell Oil CompanyInventors: Brendan Dermot Murray, Garo Garbis Vaporciyan
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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
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Patent number: 7041866Abstract: A catalyst and process is disclosed to selectively upgrade a paraffinic feedstock to obtain an isoparaffin-rich product for blending into gasoline. The catalyst comprises a support of a sulfated oxide or hydroxide of a Group IVB (IUPAC 4) metal, a first component comprising at least one Group III A (IUPAC 13) component, and at least one platinum-group metal component which is preferably platinum.Type: GrantFiled: October 8, 2002Date of Patent: May 9, 2006Assignee: UOP LLCInventor: Ralph D. Gillespie
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Patent number: 6977322Abstract: A catalyst and process is disclosed to selectively upgrade a paraffinic feedstock to obtain an isoparaffin-rich product for blending into gasoline. The catalyst comprises a support of a tungstated oxide or hydroxide of a Group IVB (IUPAC 4) metal, a first component of at least one lanthanide element, yttrium or mixtures thereof, which is preferably ytterbium or holmium, and at least one platinum-group metal component which is preferably platinum.Type: GrantFiled: July 19, 2004Date of Patent: December 20, 2005Assignee: UOP LLCInventor: Ralph D. Gillespie
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Patent number: 6900364Abstract: A process for recovering cumene, characterized by subjecting 2,3-dimethyl-2,3-diphenylbutane produced in a process in which cumene is used, to hydrogenolysis in the presence of a catalyst thereby to convert it into cumene, and recovering the cumene.Type: GrantFiled: March 7, 2002Date of Patent: May 31, 2005Assignee: Sumitomo Chemical Company, LimitedInventors: Junpei Tsuji, Masaaki Katao
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Patent number: 6133494Abstract: A catalyst composition and a process for hydrodealkylating C.sub.9 + aromatic compounds such as, for example, trimethylbenzenes, to C.sub.6 to C.sub.8 aromatic hydrocarbons such as toluene and xylenes are disclosed. The composition comprises an alumina and a silica wherein the weight ratio of aluminum to silicon is in the range of from about 0.005:1 to about 0.25:1. The process comprises contacting, in the presence of the catalyst composition, a fluid which comprises a C.sub.9 + aromatic compound with a hydrogen-containing fluid under a condition sufficient to effect the conversion of a C.sub.9 + aromatic compound to a C.sub.6 to C.sub.8 aromatic hydrocarbon; and the C.sub.9 + aromatic compound contains at least 9 carbon atoms.Type: GrantFiled: May 21, 1999Date of Patent: October 17, 2000Assignee: Phillips Petroleum CompanyInventors: An-hsiang Wu, Charles A. Drake
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Patent number: 6096193Abstract: A catalytic material is provided which effectuates the aromatization, reformation, and dehydrogenation of aliphatic, cycloaliphatic, and mixtures of aliphatic and cycloaliphatic hydrocarbons. The catalyst comprises an L-zeolite associated with a Group VIII metal such as platinum and having a rare earth metal ion incorporated therein. A method of using the catalytic material is also provided.Type: GrantFiled: April 5, 1999Date of Patent: August 1, 2000Assignee: The Board of Regents of the University of OklahomaInventors: Daniel E. Resasco, Cristina L. Padro, Gary Jacobs, Haiyang Liu
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Patent number: 5885443Abstract: A reforming process, selective for the dehydrocyclization of paraffins to aromatics, is effected using a catalyst containing a uniformly distributed platinum-group metal component, a surface-layer metal component comprising one ore more of the Group IVA metals and indium and a nonacidic large-pore molecular sieve. The use of this bed of catalyst results in greater selectivity of conversion of paraffins to aromatics and in improved catalyst stability.Type: GrantFiled: June 17, 1998Date of Patent: March 23, 1999Assignee: UOP LLCInventors: Paula L. Bogdan, Qianjun Chen
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Patent number: 5755956Abstract: A reforming process, selective for the dehydrocyclization of paraffins to aromatics, is effected using a catalyst containing multiple Group VIII (8-10) noble metals having different gradients within the catalyst and a nonacidic large-pore molecular sieve. The use of this bed of catalyst results in greater selectivity of conversion of paraffins to aromatics and improved catalyst stability, particularly in the presence of small amounts of sulfur.Type: GrantFiled: December 13, 1996Date of Patent: May 26, 1998Assignee: UOPInventors: Leonid B. Galperin, Paula L. Bogdan, Edwin Paul Boldingh
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Patent number: 5534656Abstract: This invention relates to use of synthetic porous crystalline MCM-58 as a catalyst component in catalytic conversion of organic compounds.Type: GrantFiled: April 28, 1995Date of Patent: July 9, 1996Assignee: Mobil Oil CorporationInventor: Ernest W. Valyocsik
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Patent number: 5443715Abstract: A process for the production of gaseous olefins which involves introducing a hydrocarbon feedstock stream into a high temperature thermal cracking zone to produce a high temperature cracked product stream, quenching the cracked product stream to stop the cracking reactions, injecting at least one HDD (hydrogen donor diluent) into the cracked product stream at or downstream of the point at which the reaction is quenched, recovering normally gaseous olefins from the cracked product stream, and recovering a liquid product stream containing a diminished asphaltene content.Type: GrantFiled: March 25, 1993Date of Patent: August 22, 1995Assignee: Exxon Chemical Patents Inc.Inventors: Dane C. Grenoble, Roy T. Halle, Martin L. Gorbaty, Harold W. Helmke
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Patent number: 5215649Abstract: A process for the production of gaseous olefins which involves introducing a hydrocarbon feedstock stream into a high temperature thermal cracking zone to produce a high temperature cracked product stream, quenching the cracked product stream to stop the cracking reactions, injecting at least one HDD (hydrogen donor diluent) into the cracked product stream at or downstream of the point at which the reaction is quenched, recovering normally gaseous olefins from the cracked product stream, and recovering a liquid product stream containing a diminished asphaltene content.Type: GrantFiled: May 2, 1990Date of Patent: June 1, 1993Assignee: Exxon Chemical Patents Inc.Inventors: Dane C. Grenoble, Roy T. Halle, Martin L. Gorbaty, Harold W. Helmke
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Patent number: 5126461Abstract: Process for ring opening compounds of the formula ##STR1## in which R.sup.1 is heteroaryl or aryl, R.sup.2 is a leaving group, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are independently selected from hydrogen, alkyl, aralkyl, aryl, heteroaryl and alkenyl, provided that at least one of the groups R.sup.3 to R.sup.6 is other than hydrogen, by breaking the bond joining the carbon atom attached to R.sup.3 and the carbon atom attached to R.sup.6 in organic solution using silica, giving useful diene or allyl derivatives, certain of which are novel.Type: GrantFiled: November 14, 1990Date of Patent: June 30, 1992Assignee: Shell Research LimitedInventors: Mark S. Baird, Ian Bruce
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Patent number: 5095160Abstract: Benzene is converted to toluene in the presence of free hydrogen and a supported nickel metal catalyst.Type: GrantFiled: June 24, 1991Date of Patent: March 10, 1992Assignee: Phillips Petroleum CompanyInventors: Filippo Penella, Marvin M. Johnson
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Patent number: 5003119Abstract: A process for the manufacture of alkylbenzenes wherein a feed of fresh and recycle benzene and fresh olefin are reacted in the presence of an alkylation catalyst in an alkylator having at least two reaction stages wherein each stage is adiabatic. Essentially all of the olefin is completely reacted in each stage of the alkylator. Fresh olefin is fed into each stage of the alkylator. Preferred alkylbenzenes which are produced by this process are ethylbenzene and cumene.Type: GrantFiled: February 12, 1990Date of Patent: March 26, 1991Assignee: Lummus Crest, Inc.Inventors: Helion H. Sardina, Roger C. Johnson, John E. Paustian, Renata M. Cox
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Patent number: 4926000Abstract: Benzene reacts with itself to produce liquid aromatic compounds having more than 6 carbon atoms, in the presence of zeolite characterized as a medium pore size and having an activity defined by an alpha value of at least 50.Type: GrantFiled: June 30, 1988Date of Patent: May 15, 1990Assignee: Mobil Oil CorporationInventor: Roger A. Morrison
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Patent number: 4385194Abstract: A method is disclosed for promoting isomerization of sym-octahydrophenanthrene (s-OHP) to sym-octahydroanthracene (s-OHA) in the presence of a catalyst provided by aluminum chloride or aluminum bromide, or a mixture of these two compounds. The rate of isomerization is increased by having the reaction run in the presence of an aralkyl halide such as benzyl chloride.Type: GrantFiled: March 5, 1982Date of Patent: May 24, 1983Assignee: Koppers Company, Inc.Inventor: William T. Gormley
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Patent number: 4375570Abstract: Residual products obtained in the catalytic dehydration of alpha-methylbenzyl alcohol are treated to recover increased quantities of ethylbenzene by a process which comprises thermally cracking the residual products in the substantial absence of hydrogen under elevated pressures.Type: GrantFiled: May 5, 1982Date of Patent: March 1, 1983Assignee: Atlantic Richfield CompanyInventor: Amos Yudovich
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Patent number: 4278825Abstract: Toluene dehydrocoupled products are produced by heating toluene in the vapor phase with an inorganic metal/oxygen composition which functions as an oxygen carrier and has the empirical formula:M.sub.a.sup.1 M.sub.b.sup.2 M.sub.c.sup.3 O.sub.xwhere M.sup.1 is bismuth, M.sup.2 is at least one element selected from indium, silver, Group 2a of the Periodic Table of the Elements, and mixtures thereof, and M.sup.3 is at least one element selected from zinc, germanium, thorium, the lanthanides or rare earths, Groups 1a, 3b, 4b, and 8 of the Periodic Table of the Elements, and mixtures thereof, and wherein a is 1, b is 0.01 to 10, c is 0.01 to 10, and x is a number taken to satisfy the average valences of M.sup.1, M.sup.2, and M.sup.3 in the oxidation states in which they exist in the composition.Type: GrantFiled: December 10, 1979Date of Patent: July 14, 1981Assignee: Monsanto CompanyInventors: Samuel J. Tremont, Alex N. Williamson
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Patent number: 4234749Abstract: This invention provides processes for the production of benzene from anthracene, 9,10-anthraquinone from anthracene, and benzene from 9,10-anthraquinone. In the conversion of anthracene to 9,10-anthraquinone, anthracene is reacted with a molecular oxygen-containing gas (e.g., air) in the presence of a catalyst and promotor at an elevated temperature (65.degree. to 205.degree. C.). To convert 9,10-anthraquinone to benzene, the anthraquinone is thermally cracked, with or without a suitable catalyst, at a temperature of at least 425.degree. C. An example of a suitable catalyst is synthetic zeolite.Type: GrantFiled: February 1, 1979Date of Patent: November 18, 1980Assignee: Hydrocarbon Research, Inc.Inventor: Francis P. Daly
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Patent number: 4198535Abstract: A process for producing a linear unsaturated dimer of .alpha.-alkyl styrenes by heating .alpha.-alkyl styrenes in the presence of a silica-alumina catalyst, said catalyst consisting of alumina and silica in a weight ratio of 83/17.ltoreq.Al.sub.2 O.sub.3 /SiO.sub.2 .ltoreq.96/4 and being substantially free of alkali is disclosed.Type: GrantFiled: September 27, 1978Date of Patent: April 15, 1980Assignee: Mitsui Petrochemical Industries Ltd.Inventors: Kazunori Takahata, Hiroshi Hasui
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Patent number: 4157950Abstract: Crystalline aluminosilicate zeolites are used as catalysts for various hydrocarbon conversion processes and are particularly useful for conversion of paraffins in the presence of an alkylatable aromatic hydrocarbon such as benzene.Type: GrantFiled: October 17, 1977Date of Patent: June 12, 1979Assignee: Mobil Oil CorporationInventors: Vincent J. Frilette, Mae K. Rubin
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Patent number: 4152361Abstract: Cyclohexene may be produced from phenylcyclohexane by treating the latter compound at an elevated temperature in the presence of certain solid acidic catalysts such as zeolite or silica-alumina to produce the desired compound.Type: GrantFiled: March 24, 1978Date of Patent: May 1, 1979Assignee: UOP Inc.Inventor: Tamotsu Imai