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Conversion of d-xylose into furfural with aluminum and hafnium pillared clays as catalyst

Cortés Ortiz, William Giovanni and Piñeros Castro, Nubia Yineth and Campos Rosario, Ana María (2013) Conversion of d-xylose into furfural with aluminum and hafnium pillared clays as catalyst. Dyna; Vol. 80, núm. 180 (2013); 105-112 DYNA; Vol. 80, núm. 180 (2013); 105-112 2346-2183 0012-7353 .

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URL oficial: http://revistas.unal.edu.co/index.php/dyna/article...

Resumen

The industrial practice used to produce furfural is the dehydration of pentoses, which is carried out using highly corrosive and contaminating mineral acid catalysts. Because of the ecological and toxicological threats of this process and the complexity of product separation associated with these substances, the development of new acid solid catalysts has expanded in recent years. The present work is focused on the production of furfural from D-xylose using aluminum and hafnium pillared clays as catalysts. After 4 h of reaction at temperatures ranging between 140 and 170°C, conversion rates of 50-80% were observed, and selectivity levels of 40-65% were reached. Finally, the stability of the catalyst was further investigated by applying a thermal treatment prior to reuse. A significant decrease in the selectivity was not observed in four consecutive reactions. Consequently the pillared clays appear to be active, selective and stable catalyst for pentose dehydration.

Tipo de documento:Artículo - Article
Información adicional:Derechos de autor reservados
Palabras clave:xylose, pentose dehydration, pillared clays, furfural
Unidad administrativa:Revistas electrónicas UN > Dyna
Código ID:28603
Enviado por : Dirección Nacional de Bibliotecas STECNICO
Enviado el día :28 Junio 2014 16:29
Ultima modificación:11 Julio 2018 02:00
Ultima modificación:11 Julio 2018 02:00
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