ISSN:
1572-879X
Schlagwort(e):
Alkali-free synthesis zeolite
;
[Ga]-ZSM-5
;
degalliation
;
acidic and bifunctional catalysts
;
propane aromatization
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Chemie und Pharmazie
Notizen:
Abstract Propane aromatization (530°C, 1 atm) was used as a reaction model to evaluate the effect of the calcination temperature on the catalytic properties of an as-synthesized [Ga1.3]-ZSM-5 zeolite obtained from alkali-free media and calcined at two different temperatures: 530°C (C-530) and 750°C (C-750). Results show that in spite of its lower acidity, C-750 is more active and selective toward aromatics than C-530. This is probably due to the fact that at higher temperature the decomposition of organic compounds used during the zeolite synthesis is accompanied by a partial degalliation of the zeolitic support leading to the production of a bifunctional x“Ga2O3” /H-[Gay-ZSM-5(2x+y=1.3)catalyst.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF00807247
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