FR2135741A5 - Catalyst for paraffin dehydrogenation - contg a noble metal and tungsten or molybdenum on a low-acidity alumina support - Google Patents

Catalyst for paraffin dehydrogenation - contg a noble metal and tungsten or molybdenum on a low-acidity alumina support

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Publication number
FR2135741A5
FR2135741A5 FR7114888A FR7114888A FR2135741A5 FR 2135741 A5 FR2135741 A5 FR 2135741A5 FR 7114888 A FR7114888 A FR 7114888A FR 7114888 A FR7114888 A FR 7114888A FR 2135741 A5 FR2135741 A5 FR 2135741A5
Authority
FR
France
Prior art keywords
pref
catalyst
contg
molybdenum
tungsten
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
FR7114888A
Other languages
French (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.)
IFP Energies Nouvelles IFPEN
Original Assignee
IFP Energies Nouvelles IFPEN
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 IFP Energies Nouvelles IFPEN filed Critical IFP Energies Nouvelles IFPEN
Priority to FR7114888A priority Critical patent/FR2135741A5/en
Application granted granted Critical
Publication of FR2135741A5 publication Critical patent/FR2135741A5/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C07C5/321—Catalytic processes
    • C07C5/324—Catalytic processes with metals
    • C07C5/325—Catalytic processes with metals of the platinum group
    • 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
    • B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/56—Platinum group metals
    • B01J23/64—Platinum group metals with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/652—Chromium, molybdenum or tungsten
    • 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
    • C07C5/327—Formation of non-aromatic carbon-to-carbon double bonds only
    • C07C5/333—Catalytic processes
    • C07C5/3335—Catalytic processes with metals
    • C07C5/3337—Catalytic processes with metals of the platinum group

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

Abstract

Catalysts for the dehydrogenation of satd. (pref. 3-40C) hydrocarbons, contain (a) alumina, (b) Pt, Ir, Pd or Ru, and (c) W (pref.) or Mo, have a specific surface of 20-150m2/g., and have a heat of neutralisation by NH3 adsorption of 10 cal/g. at 320 degrees c/300 mm Hg. The catalyst pref. contains 0.1-0.5 wt.% component (c) and 0.1-0.5 wt.% component (b). Its specific surface is pref. 50-75 m2/g. and its pore vol. 0.4-0.8 cm3/g. It is pref. prepd. by depositing the metals, drying, calcining and then reducing in a stream of H2 at 500-550 degrees C (when (c) is W) or 550-600 degrees C (when (c) is Mo). Dehydrogenation is pref. effected at 300-600 degrees C and 0.1-10 bars, with a liq. hydrocarbon flow rate of 0.1-30 times the vol. of catalyst, and with an H2/hydrocarbon molar ratio of 0.1-30 at the inlet of the reactor.
FR7114888A 1971-04-26 1971-04-26 Catalyst for paraffin dehydrogenation - contg a noble metal and tungsten or molybdenum on a low-acidity alumina support Expired FR2135741A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7114888A FR2135741A5 (en) 1971-04-26 1971-04-26 Catalyst for paraffin dehydrogenation - contg a noble metal and tungsten or molybdenum on a low-acidity alumina support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7114888A FR2135741A5 (en) 1971-04-26 1971-04-26 Catalyst for paraffin dehydrogenation - contg a noble metal and tungsten or molybdenum on a low-acidity alumina support

Publications (1)

Publication Number Publication Date
FR2135741A5 true FR2135741A5 (en) 1972-12-22

Family

ID=9075978

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7114888A Expired FR2135741A5 (en) 1971-04-26 1971-04-26 Catalyst for paraffin dehydrogenation - contg a noble metal and tungsten or molybdenum on a low-acidity alumina support

Country Status (1)

Country Link
FR (1) FR2135741A5 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2362663A1 (en) * 1976-08-24 1978-03-24 Exxon Research Engineering Co Heat-resistant hydrocarbon reforming catalysts - contg. noble metal and tungsten or molybdenum, on an oxide carrier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2362663A1 (en) * 1976-08-24 1978-03-24 Exxon Research Engineering Co Heat-resistant hydrocarbon reforming catalysts - contg. noble metal and tungsten or molybdenum, on an oxide carrier

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