Effect of dealumination of pentasil HTsVM in conditions of catalysis and regeneration

Autor:	T. V. Vasina, V. B. Kazanskii, O. V. Bragin, V. P. Sitnik, Leonid M. Kustov
Rok vydání:	1989
Předmět:	chemistry.chemical_compound Ethylene chemistry Propane Aluminium Inorganic chemistry chemistry.chemical_element General Chemistry Photochemistry Zeolite Ion Catalysis Catalytic effect
Zdroj:	Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 38:1121-1125
ISSN:	1573-9171 0568-5230
DOI:	10.1007/bf00957135
Popis:	1. The departure of aluminum from the lattice of pentasil (HTsVM) in conversions of ethylene and propane and during oxidative regenerations was established: a decrease in bridge OH groups (3610 cm−1) and the appearance of out-of-lattice A13+ ions (3670 cm−1) with a simultaneous decrease in the activity of the zeolite. 2. Differences were found in the stability of the catalytic effect of HTsVM in conversions of ethylene and propane. The rapid loss of the activity of the zeolite in the case of ethylene is due to the greater coking of its pores in comparison to propane and to the structural changes which take place in the lattice of the zeolite.
Databáze:	OpenAIRE
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