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 |
Externí odkaz: |