Desidratação de etanol sobre material nanoestruturado do tipo LaSBA-15 Ethanol dehydration over LaSBA-15 nanostrutured material

• Main Authors: Geraldo E. Luz Jr, Ana C. R. Melo, Stevie H. Lima, Antônio S. Araujo, Valter J. Fernandes Jr.
• Format: Article
• Language: English
• Published: Sociedade Brasileira de Química 2010-01-01
• Series: Química Nova
• Subjects: ethanol dehydration; LaSBA-15; ethylene
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422010000800005

<abstract language="eng">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.