期刊
BIORESOURCE TECHNOLOGY
卷 216, 期 -, 页码 737-743出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2016.06.019
关键词
Homogeneous catalysis; Ethanosolv; Biomass valorisation; Surface area; Epidermal structure; Biodegradability
资金
- ANR Carnot Institute Chimie Balard
- INRA-CNRS GDR Biomatpro
- MENESR
- ENSCM
- CNRS
- INRA
Cellulosic pulps have been successfully isolated from wheat straw through a Lewis acids organosolv treatment. The use of Lewis acids with different hardness produced pulps with different delignification degrees. The cellulosic residue was characterised by chemical composition, X-ray diffraction, FT-IR spectroscopy, N-2 physisorption, scanning electron microscopy and potential for anaerobic digestibility. Surface area and pore volume increased with the hardness of the Lewis acid, in correspondence with the decrease of the amount of lignin and hemicellulose in the pulp. The non linearity of the correlation between porosity and composition suggests that an agglomeration of cellulose fibrils occurs in the early stages of pulping. All organosolv pulps presented a significantly higher methane potential than the parent straw. A methane evolution of 295 N cm(3)/g OM was reached by a moderate improvement of the accessibility of the native straw. (C) 2016 Elsevier Ltd. All rights reserved.
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