By Ring Opening, Removal, Degradation, Or Shift On Chain Or Other Ring Patents (Class 585/476)
  • Patent number: 9815750
    Abstract: 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: Grant
    Filed: August 22, 2014
    Date of Patent: November 14, 2017
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Shinichiro Yanagawa, Masahide Kobayashi, Yuko Aoki, Kazuaki Hayasaka
  • Patent number: 9809507
    Abstract: 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: Grant
    Filed: August 25, 2014
    Date of Patent: November 7, 2017
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Shinichiro Yanagawa, Masahide Kobayashi, Yuko Aoki, Kazuaki Hayasaka
  • Publication number: 20140364667
    Abstract: 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: Application
    Filed: August 25, 2014
    Publication date: December 11, 2014
    Applicant: JX Nippon Oil & Energy Corporation
    Inventors: Shinichiro Yanagawa, Masahide Kobayashi, Yuko Aoki, Kazuaki Hayasaka
  • Publication number: 20140364666
    Abstract: 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: Application
    Filed: August 22, 2014
    Publication date: December 11, 2014
    Inventors: Shinichiro Yanagawa, Masahide Kobayashi, Yuko Aoki, Kazuaki Hayasaka
  • Publication number: 20140179968
    Abstract: 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: Application
    Filed: May 24, 2012
    Publication date: June 26, 2014
    Applicants: CHIYODA CORPORATION, JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Shinichiro Yanagawa, Yasuyuki Iwasa, Susumu Yasui, Yoshishige Sugi, Atsushi Fukui, Atsuro Nagumo, Osamu Hirohata
  • Publication number: 20140024871
    Abstract: 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: Application
    Filed: March 23, 2012
    Publication date: January 23, 2014
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Shinichiro Yanagawa, Masahide Kobayashi, Yasuyuki Iwasa, Ryoji Ida
  • Publication number: 20140012055
    Abstract: 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: Application
    Filed: March 23, 2012
    Publication date: January 9, 2014
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Shinichiro Yanagawa, Masahide Kobayashi, Ryoji Ida, Yasuyuki Iwasa
  • Publication number: 20130289325
    Abstract: 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: Application
    Filed: December 28, 2011
    Publication date: October 31, 2013
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Shinichiro Yanagawa, Masahide Kobayashi, Yasuyuki Iwasa, Ryoji Ida
  • Publication number: 20130281755
    Abstract: 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: Application
    Filed: December 28, 2011
    Publication date: October 24, 2013
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Shinichiro Yanagawa, Masahide Kobayashi, Yasuyuki Iwasa, Ryoji Ida
  • Publication number: 20130281756
    Abstract: 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: Application
    Filed: December 28, 2011
    Publication date: October 24, 2013
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Shinichiro Yanagawa, Masahide Kobayashi, Yasuyuki Iwasa, Ryoji Ida
  • Publication number: 20130267749
    Abstract: 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: Application
    Filed: December 28, 2011
    Publication date: October 10, 2013
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Shinichiro Yanagawa, Masahide Kobayashi, Yasuyuki Iwasa
  • Publication number: 20130184506
    Abstract: 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: Application
    Filed: September 14, 2011
    Publication date: July 18, 2013
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Shinichiro Yanagawa, Ryoji Ida, Masahide Kobayashi, Yasuyuki Iwasa
  • Publication number: 20130030232
    Abstract: 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: Application
    Filed: January 20, 2011
    Publication date: January 31, 2013
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Shinichiro Yanagawa, Masahide Kobayashi, Kazuaki Hayasaka
  • Publication number: 20120310024
    Abstract: 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: Application
    Filed: February 3, 2011
    Publication date: December 6, 2012
    Inventors: Kun Wang, James R. Lattner
  • Publication number: 20100298617
    Abstract: 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: Application
    Filed: July 29, 2010
    Publication date: November 25, 2010
    Inventors: Michael C. Clark, Jane C. Cheng, Ajit B. Dandekar
  • Publication number: 20100197970
    Abstract: 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 R13
    Type: Application
    Filed: July 29, 2008
    Publication date: August 5, 2010
    Applicant: Nippon Oil Corporation
    Inventors: Shinichi Komatsu, Toshikatsu Shoko, Tadahiro Kaminade
  • Patent number: 7608747
    Abstract: 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: Grant
    Filed: September 23, 2005
    Date of Patent: October 27, 2009
    Assignee: Lummus Technology Inc.
    Inventors: Bala Ramachandran, Lawrence L. Murrell, Martin Kraus, Zhiping Shan, Philip J. Angevine
  • Patent number: 7563359
    Abstract: 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: Grant
    Filed: May 17, 2005
    Date of Patent: July 21, 2009
    Assignee: Nova Chemical (International) S.A.
    Inventors: Michael C. Oballa, Andrzej Krzywicki, Sunny Ying-Shing Wong, Anthony Tse, Abdul Alim Fakih
  • Patent number: 7358411
    Abstract: 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: Grant
    Filed: June 21, 2004
    Date of Patent: April 15, 2008
    Assignee: Shell Oil Company
    Inventors: Brendan Dermot Murray, Garo Garbis Vaporciyan
  • Patent number: 7151199
    Abstract: 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: Grant
    Filed: June 10, 2002
    Date of Patent: December 19, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Luc Roger Marc Martens, Stephen N. Vaughn, Albert Edward Schweizer, John K. Pierce, Shun Chong Fung
  • Patent number: 7041866
    Abstract: 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: Grant
    Filed: October 8, 2002
    Date of Patent: May 9, 2006
    Assignee: UOP LLC
    Inventor: Ralph D. Gillespie
  • Patent number: 6977322
    Abstract: 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: Grant
    Filed: July 19, 2004
    Date of Patent: December 20, 2005
    Assignee: UOP LLC
    Inventor: Ralph D. Gillespie
  • Patent number: 6900364
    Abstract: 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: Grant
    Filed: March 7, 2002
    Date of Patent: May 31, 2005
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Junpei Tsuji, Masaaki Katao
  • Patent number: 6133494
    Abstract: 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: Grant
    Filed: May 21, 1999
    Date of Patent: October 17, 2000
    Assignee: Phillips Petroleum Company
    Inventors: An-hsiang Wu, Charles A. Drake
  • Patent number: 6096193
    Abstract: 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: Grant
    Filed: April 5, 1999
    Date of Patent: August 1, 2000
    Assignee: The Board of Regents of the University of Oklahoma
    Inventors: Daniel E. Resasco, Cristina L. Padro, Gary Jacobs, Haiyang Liu
  • Patent number: 5885443
    Abstract: 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: Grant
    Filed: June 17, 1998
    Date of Patent: March 23, 1999
    Assignee: UOP LLC
    Inventors: Paula L. Bogdan, Qianjun Chen
  • Patent number: 5755956
    Abstract: 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: Grant
    Filed: December 13, 1996
    Date of Patent: May 26, 1998
    Assignee: UOP
    Inventors: Leonid B. Galperin, Paula L. Bogdan, Edwin Paul Boldingh
  • Patent number: 5534656
    Abstract: This invention relates to use of synthetic porous crystalline MCM-58 as a catalyst component in catalytic conversion of organic compounds.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: July 9, 1996
    Assignee: Mobil Oil Corporation
    Inventor: Ernest W. Valyocsik
  • Patent number: 5443715
    Abstract: 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: Grant
    Filed: March 25, 1993
    Date of Patent: August 22, 1995
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Dane C. Grenoble, Roy T. Halle, Martin L. Gorbaty, Harold W. Helmke
  • Patent number: 5215649
    Abstract: 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: Grant
    Filed: May 2, 1990
    Date of Patent: June 1, 1993
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Dane C. Grenoble, Roy T. Halle, Martin L. Gorbaty, Harold W. Helmke
  • Patent number: 5126461
    Abstract: 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: Grant
    Filed: November 14, 1990
    Date of Patent: June 30, 1992
    Assignee: Shell Research Limited
    Inventors: Mark S. Baird, Ian Bruce
  • Patent number: 5095160
    Abstract: Benzene is converted to toluene in the presence of free hydrogen and a supported nickel metal catalyst.
    Type: Grant
    Filed: June 24, 1991
    Date of Patent: March 10, 1992
    Assignee: Phillips Petroleum Company
    Inventors: Filippo Penella, Marvin M. Johnson
  • Patent number: 5003119
    Abstract: 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: Grant
    Filed: February 12, 1990
    Date of Patent: March 26, 1991
    Assignee: Lummus Crest, Inc.
    Inventors: Helion H. Sardina, Roger C. Johnson, John E. Paustian, Renata M. Cox
  • Patent number: 4926000
    Abstract: 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: Grant
    Filed: June 30, 1988
    Date of Patent: May 15, 1990
    Assignee: Mobil Oil Corporation
    Inventor: Roger A. Morrison
  • Patent number: 4385194
    Abstract: 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: Grant
    Filed: March 5, 1982
    Date of Patent: May 24, 1983
    Assignee: Koppers Company, Inc.
    Inventor: William T. Gormley
  • Patent number: 4375570
    Abstract: 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: Grant
    Filed: May 5, 1982
    Date of Patent: March 1, 1983
    Assignee: Atlantic Richfield Company
    Inventor: Amos Yudovich
  • Patent number: 4278825
    Abstract: 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: Grant
    Filed: December 10, 1979
    Date of Patent: July 14, 1981
    Assignee: Monsanto Company
    Inventors: Samuel J. Tremont, Alex N. Williamson
  • Patent number: 4234749
    Abstract: 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: Grant
    Filed: February 1, 1979
    Date of Patent: November 18, 1980
    Assignee: Hydrocarbon Research, Inc.
    Inventor: Francis P. Daly
  • Patent number: 4198535
    Abstract: 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: Grant
    Filed: September 27, 1978
    Date of Patent: April 15, 1980
    Assignee: Mitsui Petrochemical Industries Ltd.
    Inventors: Kazunori Takahata, Hiroshi Hasui
  • Patent number: 4157950
    Abstract: 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: Grant
    Filed: October 17, 1977
    Date of Patent: June 12, 1979
    Assignee: Mobil Oil Corporation
    Inventors: Vincent J. Frilette, Mae K. Rubin
  • Patent number: 4152361
    Abstract: 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: Grant
    Filed: March 24, 1978
    Date of Patent: May 1, 1979
    Assignee: UOP Inc.
    Inventor: Tamotsu Imai