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Issue 8, 2013
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Hemicellulose hydrolysis catalysed by solid acids

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Abstract

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.

Graphical abstract: Hemicellulose hydrolysis catalysed by solid acids

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Publication details

The article was received on 03 Dec 2012, accepted on 29 Mar 2013 and first published on 03 Apr 2013


Article type: Paper
DOI: 10.1039/C3CY20838A
Citation: Catal. Sci. Technol., 2013,3, 2057-2061
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    Hemicellulose hydrolysis catalysed by solid acids

    P. D. Carà, M. Pagliaro, A. Elmekawy, David. R. Brown, P. Verschuren, N. R. Shiju and G. Rothenberg, Catal. Sci. Technol., 2013, 3, 2057
    DOI: 10.1039/C3CY20838A

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