ES391481A1 - Process for the isomerization of alkylaromatic hydrocarbons - Google Patents

Process for the isomerization of alkylaromatic hydrocarbons

Info

Publication number
ES391481A1
ES391481A1 ES391481A ES391481A ES391481A1 ES 391481 A1 ES391481 A1 ES 391481A1 ES 391481 A ES391481 A ES 391481A ES 391481 A ES391481 A ES 391481A ES 391481 A1 ES391481 A1 ES 391481A1
Authority
ES
Spain
Prior art keywords
per cent
alkyl
isomerized
steam
alumina
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.)
Expired
Application number
ES391481A
Other languages
Spanish (es)
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Publication of ES391481A1 publication Critical patent/ES391481A1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B01J23/42—Platinum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • 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
    • C07C5/22—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by isomerisation
    • C07C5/27—Rearrangement of carbon atoms in the hydrocarbon skeleton
    • C07C5/2702—Catalytic processes not covered by C07C5/2732 - C07C5/31; Catalytic processes covered by both C07C5/2732 and C07C5/277 simultaneously
    • C07C5/2724—Catalytic processes not covered by C07C5/2732 - C07C5/31; Catalytic processes covered by both C07C5/2732 and C07C5/277 simultaneously with metals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Alkyl aromatic hydrocarbons in which the alkyl groups are C 1-4 are isomerized at a temperature below 440 C. with a catalyst comprising an acidic refractory oxide and a hydrogenating/dehydrogenating metal component, and in the additional presence of both hydrogen and steam, the amount of steam being in the range 100-1500 p.p.m. (vol.) based on hydrogen plus hydrocarbons. Many suitable oxides and oxide mixtures are referred to, including zeolites preferred are (a) silica/alumina containing 10- 70 wt. per cent alumina, and (b) alumina containing 1-3 wt. per cent fluorine. Preferred metal components are Ni, Co, Pd or Pt. Both alkyl benzenes and alkyl naphthalenes may be isomerized, but the process is particularly applied to C 8 aromatics, i.e. xylenes and ethyl benzene. In the latter case conditions may be such that some hydrogenation takes place so as to provide 1-50 wt. per cent C 8 naphthenes in the reaction product.
ES391481A 1970-05-26 1971-05-24 Process for the isomerization of alkylaromatic hydrocarbons Expired ES391481A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB25091/70A GB1255459A (en) 1970-05-26 1970-05-26 Process for the isomerization of alkylaromatic hydrocarbons

Publications (1)

Publication Number Publication Date
ES391481A1 true ES391481A1 (en) 1973-06-16

Family

ID=10222060

Family Applications (1)

Application Number Title Priority Date Filing Date
ES391481A Expired ES391481A1 (en) 1970-05-26 1971-05-24 Process for the isomerization of alkylaromatic hydrocarbons

Country Status (8)

Country Link
BE (1) BE767243A (en)
CA (1) CA960700A (en)
DE (1) DE2125676C3 (en)
ES (1) ES391481A1 (en)
FR (1) FR2093630A5 (en)
GB (1) GB1255459A (en)
NL (1) NL169990C (en)
SE (1) SE373121B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6512155B1 (en) 2000-04-25 2003-01-28 Uop Llc Process for the activation of an alkylaromatic isomerization catalyst by water
AU2003303863A1 (en) * 2003-01-27 2004-08-30 Uop Llc Process for the activation of an alkylaromatic isomerization catalyst by water

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE848803C (en) * 1950-01-09 1952-09-08 Bataafsche Petroleum Process for isomerizing xylenes
GB930092A (en) * 1960-07-21 1963-07-03 Ici Ltd Improvements in and relating to xylene isomerisation processes
GB962871A (en) * 1961-10-30 1964-07-08 Maruzen Oil Company Ltd A process for the isomerization of xylenes
US3381048A (en) * 1965-09-16 1968-04-30 Standard Oil Co Isomerization of xylene isomers
GB1171865A (en) * 1967-10-19 1969-11-26 Shell Int Research Continuous Process for the Preparation of p-Xylene.

Also Published As

Publication number Publication date
CA960700A (en) 1975-01-07
DE2125676A1 (en) 1971-12-02
NL169990C (en) 1982-09-16
FR2093630A5 (en) 1972-01-28
BE767243A (en) 1971-11-17
SE373121B (en) 1975-01-27
DE2125676C3 (en) 1982-04-29
NL7107053A (en) 1971-11-30
DE2125676B2 (en) 1981-06-19
NL169990B (en) 1982-04-16
GB1255459A (en) 1971-12-01

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