TY - JOUR
T1 - Hemicellulose hydrolysis catalysed by solid acids
AU - Demma Cara', Piera
AU - Shiju, N. Raveendran
AU - Carà, Piera Demma
AU - Elmekawy, Ahmed
AU - Pagliaro, Mario
AU - Verschuren, Peter
AU - Rothenberg, Gadi
AU - Brown, David. R.
PY - 2013
Y1 - 2013
N2 - Depolymerising hemicellulose into platform sugar molecules is a key step in developing the concept of an integrated biorefinery. This reaction is traditionally catalysed by either enzymes or homogeneous mineral acids. We compared various solid catalysts for hemicellulose hydrolysis, running reactions in water, under neutral pH and relatively mild temperature and pressure (120 °C and 10 bar) conditions. Sulphonated resins are highly active, but they leach out sulphonic groups. Sulphonated silicas are less active, but more stable. They have weakly and strongly bound sites and the strongly bound ones do not leach. Zeolites are moderately active and stable. Among them, H-ferrierite especially, despite its small pores, exhibited high activity as well as good recyclability.
AB - Depolymerising hemicellulose into platform sugar molecules is a key step in developing the concept of an integrated biorefinery. This reaction is traditionally catalysed by either enzymes or homogeneous mineral acids. We compared various solid catalysts for hemicellulose hydrolysis, running reactions in water, under neutral pH and relatively mild temperature and pressure (120 °C and 10 bar) conditions. Sulphonated resins are highly active, but they leach out sulphonic groups. Sulphonated silicas are less active, but more stable. They have weakly and strongly bound sites and the strongly bound ones do not leach. Zeolites are moderately active and stable. Among them, H-ferrierite especially, despite its small pores, exhibited high activity as well as good recyclability.
UR - http://hdl.handle.net/10447/77062
M3 - Article
VL - 3
JO - CATALYSIS SCIENCE & TECHNOLOGY
JF - CATALYSIS SCIENCE & TECHNOLOGY
SN - 2044-4761
ER -