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Química Nova

Print version ISSN 0100-4042

Abstract

ALVES, Ingryd Carvalho et al. Mesopore generation in ZSM-5 zeolites and their effects on conversion of ethanol to olefins. Quím. Nova [online]. 2012, vol.35, n.8, pp. 1554-1559. ISSN 0100-4042.  http://dx.doi.org/10.1590/S0100-40422012000800012.

Developing mesoporosity in HZSM-5 zeolites is an alternative for improving their catalytic performance on chemical reactions. In this work, alkaline and thermal treatments were used to produce mesoporosity. These treatments increased mesoporous area and volume. They also influenced the acid properties of the samples. Concerning catalytic performance, treatments modified reaction product distribution. Whereas alkaline treatment favored formation of olefins and increased propene ratio in the beginning of the reaction, thermal treatment resulted in formation of only ethylene due to the low acidity of the sample.

Keywords : ethanol; mesopores generation; ZSM-5 zeolite.

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