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BIBTEX RIS

Desidratação de etanol sobre material nanoestruturado do tipo LaSBA-15

2010; Brazilian Chemical Society; Volume: 33; Issue: 8 Linguagem: Inglês

10.1590/s0100-40422010000800005

ISSN

1678-7064

Autores

Geraldo E. Luz, Ana C. R. Melo, Stevie H. Lima, Antônio S. Araújo, Valter J. Fernandes,

Tópico(s)

Zeolite Catalysis and Synthesis

Resumo

ETHANOL DEHYDRATION OVER LaSBA-15 NANOSTRUTURED MATERIAL.La-incorporated SBA-15 mesopourous molecular sieves (LaSBA-15) were directly synthesized with aim to convert ethanol to ethylene.The samples were characterized by XRD, XRF, nitrogen sorption and acidity, by thermodesorption of n-buthylamine.The results have indicated that all the samples have showed high ordered mesostructure with a large average pore size, and that the lanthanum incorporation has caused an increase in the acidity of the SBA-15.The LaSBA-15 samples have improved, with low deactivation rate, the conversion of the ethanol to water, ether, acetaldehyde and ethylene.In addition, they have increased the ethylene selectivity.

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