Ethanol dehydration over LaSBA-15 nanostrutured material

Autor: Stevie H. Lima, Geraldo E. Luz, Antonio S. Araujo, Valter J. Fernandes, Ana C. R. Melo
Rok vydání: 2010
Předmět:
Zdroj: Química Nova, Volume: 33, Issue: 8, Pages: 1646-1648, Published: 2010
Química Nova v.33 n.8 2010
Química Nova
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
ISSN: 0100-4042
DOI: 10.1590/s0100-40422010000800005
Popis: 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.
Databáze: OpenAIRE