Journal
BIOMASS & BIOENERGY
Volume 35, Issue 5, Pages 2106-2116Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.biombioe.2011.02.019
Keywords
Biomass; Sugarcane bagasse; Pyrolysis; Bio-oil; LTC-pyrolysis; Biofuels
Funding
- ANP/CENPES-Brazil
- Spanish and Catalan governments [CSD2009-00050, MAT2008-02561, 2009SGR-0674]
- CAPES-Brazil
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This article describes the influence of different sugarcane bagasse hydrolysis pretreatments on modifications to biomass feedstock and the characteristics of the resultant pyrolysis products. Sugarcane bagasse was pretreated with acid, alkaline or sequential acid/alkaline solutions and pretreated samples were then subjected to a low temperature conversion (LTC) process under He or O(2)/He atmospheres at 350-450 degrees C. Both pretreated samples and sugarcane bagasse in natura were analyzed by determination of their chemical composition and by thermogravimetric, FTIR and SEM analyses. The gases yielded during LTC were monitored on-line by quadrupole mass spectrometry, and the liquid fractions obtained were characterized by FTIR and (1)H and (13)C NMR. Irrespective of the sugarcane bagasse pretreatment applied, the main bio-oil component obtained was levoglucosan. However, the LTC yield of bio-oil depended on the hydrolysis treatment of the biomass and decreased in the presence of O(2). The acid hydrolysis pretreatment increased the LTC bio-oil yield notably. (C) 2011 Elsevier Ltd. All rights reserved.
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