Laboratory and pilot scale pretreatment of sugarcane bagasse by acidified aqueous glycerol solutions

Zhang, Zhanying, Wong, Heng Ho, Albertson, Peter, Doherty, William O.S., & O'Hara, Ian M. (2013) Laboratory and pilot scale pretreatment of sugarcane bagasse by acidified aqueous glycerol solutions. Bioresource Technology, 138, pp. 14-21.

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Pretreatment of sugarcane bagasse with acidified aqueous glycerol solution was evaluated at both laboratory and pilot scales. Laboratory scale pretreatment (4.00 g dry mass in 40.00 g liquid) with glycerol solutions containing ≤ 20 wt% water and 1.2 wt% HCl at 130 °C for 60 min resulted in biomass having glucan digestibilities of ≥ 88%. Comparable glucan enzymatic digestibility of 90% was achieved with bagasse pretreated at pilot scale (10 kg dry mass in 60 kg liquid) using a glycerol solution containing 0.4 wt% HCl and 17 wt% water at 130 °C for 15 min. We attribute more efficient pretreatment at pilot scale (despite shorter reaction time and reduced acid content) to improved mixing and heat transfer in a horizontal reactor. Pretreatment of sugarcane bagasse with acid-catalysed glycerol solutions likely produces glycerol-glycosides, which together with hydrolysed lignin are potential substrates for the production of biopolymers.

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ID Code: 58821
Item Type: Journal Article
Refereed: Yes
DOI: 10.1016/j.biortech.2013.03.065
ISSN: 0960-8524
Divisions: Current > Research Centres > Centre for Tropical Crops and Biocommodities
Copyright Owner: Copyright 2013 Elsevier.
Deposited On: 02 Apr 2013 07:01
Last Modified: 02 Oct 2013 05:07

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