Pretreatment of sugarcane bagasse by acid-catalysed process in aqueous ionic liquid solutions
Zhang, Zhanying, O'Hara, Ian M., & Doherty, William O.S. (2012) Pretreatment of sugarcane bagasse by acid-catalysed process in aqueous ionic liquid solutions. Bioresource Technology, 120, pp. 149-156.
A biomass pretreatment process was developed using acidified ionic liquid (IL) solutions containing 10-30% water. Pretreatment of sugarcane bagasse at 130°C for 30min by aqueous 1-butyl-3-methylimidazolium chloride (BMIMCl) solution containing 1.2% HCl resulted in a glucan digestibility of 94-100% after 72h of enzymatic hydrolysis. HCl was found to be a more effective catalyst than H(2)SO(4) or FeCl(3). Increasing acid concentration (from 0.4% to 1.2%) and reaction temperature (from 90 to 130°C) increased glucan digestibility. The glucan digestibility of solid residue obtained with the acidified BMIMCl solution that was re-used for three times was >97%. The addition of water to ILs for pretreatment could significantly reduce IL solvent costs and allow for increased biomass loadings, making the pretreatment by ILs a more economic proposition.
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|Item Type:||Journal Article|
|Divisions:||Current > Research Centres > Centre for Tropical Crops and Biocommodities|
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2012 Elsevier Ltd. All rights reserved.|
|Deposited On:||20 Aug 2012 09:51|
|Last Modified:||22 Aug 2012 11:54|
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