Composition, texture and methane potential of cellulosic residues from Lewis acids organosolv pulping of wheat straw

被引：22

作者：

Constant, Sandra ^{[1
]}

Barakat, Abdellatif ^{[2
]}

Robitzer, Mike ^{[1
]}

Di Renzo, Francesco ^{[1
]}

Dumas, Claire ^{[3
]}

Quignard, Francoise ^{[1
]}

机构：

[1] Univ Montpellier, Mat Avances Catalyse & Sante, ENSCM, ICGM,UMR 5253 CNRS, 8 Rue Ecole Normale, F-34296 Montpellier 5, France

[2] INRA, UMR 1208, IATE, 2 Pl Pierre Viala, F-34060 Montpellier 1, France

[3] UMR INSA INRA 792, INSA CNRS 5504, INSA Toulouse, INRA,LISBP, 135 Ave Rangueil, F-31077 Toulouse 04, France

来源：

BIORESOURCE TECHNOLOGY | 2016年 / 216卷

关键词：

Homogeneous catalysis; Ethanosolv; Biomass valorisation; Surface area; Epidermal structure; Biodegradability; ENZYMATIC-HYDROLYSIS; ANAEROBIC-DIGESTION; LIGNOCELLULOSIC BIOMASS; STRUCTURAL FEATURES; CORN STOVER; PRETREATMENT; LIGNIN; FRACTIONATION; WOOD; HEMICELLULOSE;

D O I：

10.1016/j.biortech.2016.06.019

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

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.

引用

页码：737 / 743

页数：7

共 35 条

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