Carà, Piera Demma, Pagliaro, Mario, Elmekawy, Ahmed, Brown, David R., Verschuren, Peter, Shiju, N. Raveendran and Rothenberg, Gadi (2013) Hemicellulose hydrolysis catalysed by solid acids. Catalysis Science & Technology, 3 (8). pp. 2057-2061. ISSN 2044-4753
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Available under License Creative Commons Attribution.
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.
|Subjects:||Q Science > QD Chemistry|
|Schools:||School of Applied Sciences|
|Depositing User:||Cherry Edmunds|
|Date Deposited:||17 Mar 2014 11:33|
|Last Modified:||02 Dec 2016 20:18|
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