Effect of temperature on propane aromatisation by Ga/H-MFI(Si, Al) catalysts

Sharifah Bee Abdul Hamid, Eric G. Derouane, Paul Mériaudeau, Claude Naccache, Mohd. Ambar Yarmo

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Propane aromatisation on a Ga/H-MFI(Si, Al) catalyst was investigated, at low conversion, in the temperature range of 750 to 840 K. Activation energies for cracking and dehydrogenation are equal to 25.9 and 24.7 Kcal.mol-1, respectively. The optimal temperature range for propane aromatisation is from 790 to 850 K. Dihydrogen release, on sites provided by dispersed gallium species, is also enhanced in this temperature range. The evolution of products selectivities as a function of temperature provides information on the propane aromatisation pathway at low conversion. Methane is a primary product obtained with ethene by acid-catalysed cracking and by decomposition of propane activated as a protonated pseudo-cyclopropane (PPCP) species. Butanes and ethane are primary products from propane disproportionation via the BREST mechanism. Butenes and ethene are also formed via acid-catalysed cracking of hexenes.

Original languageEnglish
Pages (from-to)2335-2344
Number of pages10
JournalStudies in Surface Science and Catalysis
Volume84
Issue numberC
DOIs
Publication statusPublished - 1994

Fingerprint

Aromatization
Propane
propane
catalysts
Catalysts
Butanes
products
Temperature
temperature
hexenes
Gallium
acids
cyclopropane
Ethane
Acids
Methane
Butane
butenes
Dehydrogenation
dehydrogenation

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Catalysis
  • Physical and Theoretical Chemistry
  • Materials Chemistry
  • Surfaces, Coatings and Films

Cite this

Effect of temperature on propane aromatisation by Ga/H-MFI(Si, Al) catalysts. / Abdul Hamid, Sharifah Bee; Derouane, Eric G.; Mériaudeau, Paul; Naccache, Claude; Yarmo, Mohd. Ambar.

In: Studies in Surface Science and Catalysis, Vol. 84, No. C, 1994, p. 2335-2344.

Research output: Contribution to journalArticle

Abdul Hamid, Sharifah Bee ; Derouane, Eric G. ; Mériaudeau, Paul ; Naccache, Claude ; Yarmo, Mohd. Ambar. / Effect of temperature on propane aromatisation by Ga/H-MFI(Si, Al) catalysts. In: Studies in Surface Science and Catalysis. 1994 ; Vol. 84, No. C. pp. 2335-2344.
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