FR2365541A1 - Procede d'aromatisation d'alkylaromatiques - Google Patents

Procede d'aromatisation d'alkylaromatiques

Info

Publication number
FR2365541A1
FR2365541A1 FR7728077A FR7728077A FR2365541A1 FR 2365541 A1 FR2365541 A1 FR 2365541A1 FR 7728077 A FR7728077 A FR 7728077A FR 7728077 A FR7728077 A FR 7728077A FR 2365541 A1 FR2365541 A1 FR 2365541A1
Authority
FR
France
Prior art keywords
naphthenes
isomer
concentration
mixture
equilibrium
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7728077A
Other languages
English (en)
Other versions
FR2365541B1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chevron USA Inc
Original Assignee
Chevron Research and Technology Co
Chevron Research Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chevron Research and Technology Co, Chevron Research Co filed Critical Chevron Research and Technology Co
Publication of FR2365541A1 publication Critical patent/FR2365541A1/fr
Application granted granted Critical
Publication of FR2365541B1 publication Critical patent/FR2365541B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C15/00—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts
    • C07C15/02—Monocyclic hydrocarbons
    • C07C15/067—C8H10 hydrocarbons
    • C07C15/08—Xylenes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/02—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation
    • C07C5/13—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by hydrogenation with simultaneous isomerisation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/32—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen
    • C07C5/367—Formation of an aromatic six-membered ring from an existing six-membered ring, e.g. dehydrogenation of ethylcyclohexane to ethylbenzene
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2521/00—Catalysts comprising the elements, oxides or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium or hafnium
    • C07C2521/02—Boron or aluminium; Oxides or hydroxides thereof
    • C07C2521/04—Alumina
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
    • C07C2523/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • C07C2523/32—Manganese, technetium or rhenium
    • C07C2523/36—Rhenium
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
    • C07C2523/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals
    • C07C2523/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals of the platinum group metals
    • C07C2523/42—Platinum
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
    • C07C2523/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals
    • C07C2523/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of noble metals combined with metals, oxides or hydroxides provided for in groups C07C2523/02 - C07C2523/36
    • C07C2523/56—Platinum group metals
    • C07C2523/64—Platinum group metals with arsenic, antimony, bismuth, vanadium, niobium, tatalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • C07C2523/656—Manganese, technetium or rhenium
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

L'invention décrit un procédé pour produire un isomère choisi d'alkylaromatiques en C 8 à partir d'une alimentation contenant cet isomère en une concentration inférieure à celle de l'équilibre et ayant une basse concentration en des naphtènes en C8 . On met tout d'abord l'alimentation en contact avec un catalyseur Pt-halogène, dans des conditions d'isomérisation à basse température, pour former un mélange intermédiaire contenant une quantité importante de naphtènes en Cs et un mélange d'alkylaromatiques en C8 partiellement isomérisés ; on met ensuite ce mélange intermédiaire au contact d'un autre catalyseur Pt-halogène dans des conditions de déshydrogénation à température plus élevée pour former un mélange final ayant une très faible teneur en naphtènes et une concentration essentiellement voisine de l'équilibre pour l'isomère choisi, que l'on sépare et recueille Le procédé peut notamment s'appliquer à la récupération du para-xylène à partir d'un courant de reformage catalytique de naphta
FR7728077A 1976-09-24 1977-09-16 Procede d'aromatisation d'alkylaromatiques Granted FR2365541A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/726,359 US4062903A (en) 1976-09-24 1976-09-24 Process for isomerizing alkylaromatics

Publications (2)

Publication Number Publication Date
FR2365541A1 true FR2365541A1 (fr) 1978-04-21
FR2365541B1 FR2365541B1 (fr) 1983-10-21

Family

ID=24918286

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7728077A Granted FR2365541A1 (fr) 1976-09-24 1977-09-16 Procede d'aromatisation d'alkylaromatiques

Country Status (9)

Country Link
US (1) US4062903A (fr)
JP (1) JPS5340723A (fr)
BE (1) BE858964A (fr)
CA (1) CA1083610A (fr)
DE (1) DE2742236A1 (fr)
FR (1) FR2365541A1 (fr)
GB (1) GB1551200A (fr)
IT (1) IT1086366B (fr)
NL (1) NL7710443A (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4152246A (en) * 1973-11-23 1979-05-01 Compagnie Francaise De Raffinage Catalyzed processes for the hydrotreatment of hydrocarbons
FR2769623B1 (fr) * 1997-10-14 1999-11-12 Inst Francais Du Petrole Procede d'isomerisation des composes aromatiques a huit atomes de carbone
FR2777275B1 (fr) * 1998-04-08 2000-05-19 Inst Francais Du Petrole Procede d'isomerisation des composes aromatiques a huit atomes de carbone utilisant un catalyseur contenant une zeolithe de type structural euo
US6333289B1 (en) 1998-04-10 2001-12-25 Institut Francais Du Petrole Process for activating catalysts for isomerizing aromatic compounds containing eight carbon atoms
FR2777276B1 (fr) * 1998-04-10 2000-05-19 Inst Francais Du Petrole Procede d'isomerisation des composes aromatiques a huit atomes de carbone en deux etapes successives
US6313363B1 (en) 1998-04-10 2001-11-06 Institut Francais Du Petrole Process for isomerizing aromatic compounds containing eight carbon atoms
FR2784686B1 (fr) * 1998-09-10 2001-02-23 Inst Francais Du Petrole Procede d'isomerisation des composes aromatiques a huit atomes de carbone en deux etapes successives et utilisant un catalyseur active
US7932426B2 (en) * 2007-12-12 2011-04-26 Uop Llc Process for isomerizing a non-equilibrium alkylaromatic feed mixture and an aromatic production facility
CN108368002B (zh) 2015-12-16 2021-11-02 环球油品公司 提高芳烃联合装置中的总芳烃和二甲苯收率的方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US25753A (en) * 1859-10-11 Improved electro-magnetic burglar-alarm
US3078318A (en) * 1957-07-05 1963-02-19 Universal Oil Prod Co Production of specific xylene isomers
JPS4947733B1 (fr) * 1967-12-22 1974-12-17
US3577475A (en) * 1969-01-30 1971-05-04 Chevron Res Isomerization of c8 alkyl aromatics
US3538173A (en) * 1969-05-05 1970-11-03 Universal Oil Prod Co C8-alkylaromatic isomerization process
US3642925A (en) * 1970-04-20 1972-02-15 Universal Oil Prod Co Hydrocarbon isomerization process
US3766287A (en) * 1971-07-23 1973-10-16 Exxon Research Engineering Co Separation of c8 aromatic hydrocarbons

Also Published As

Publication number Publication date
JPS5340723A (en) 1978-04-13
IT1086366B (it) 1985-05-28
FR2365541B1 (fr) 1983-10-21
NL7710443A (nl) 1978-03-29
CA1083610A (fr) 1980-08-12
GB1551200A (en) 1979-08-22
US4062903A (en) 1977-12-13
DE2742236A1 (de) 1978-04-06
BE858964A (fr) 1978-01-16

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Legal Events

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