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Kinetics of the formation of primary products of cumeme cracking over a partially exchanged LaY‐Zeolite
Author(s) -
Corma A.,
Farag H.,
Wojciechowski B. W.
Publication year - 1981
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.550130912
Subject(s) - chemistry , cumene , zeolite , catalysis , kinetics , cracking , primary (astronomy) , reaction rate constant , inorganic chemistry , organic chemistry , physics , astronomy , quantum mechanics
The kinetics of formation of primary products from cumene cracking over a partially exchanged LaNaY catalyst have been studied at 400, 450, and 500°C. It has been found that in both the fully and the partially exchanged LaNaY zeolite catalysts the nature of active sites is the same. The higher activity of the fully exchanged catalyst is attributed to a higher concentration of the active sites. It has also been found that an increase in exchange level leads to an increase in the number of both Bronsted and Lewis active sites, but in somewhat different proportions. A comparatively slight increase in the decay rate constant is observed over the same increase in the level of exchange.