ANALYTICAL METHODOLOGY FOR BIOMASS PRETREATMENT .2. CHARACTERIZATION OF THE FILTRATES AND CUMULATIVE PRODUCT DISTRIBUTION AS A FUNCTION OF TREATMENT SEVERITY
ANALYTICAL METHODOLOGY FOR BIOMASS PRETREATMENT .2. CHARACTERIZATION OF THE FILTRATES AND CUMULATIVE PRODUCT DISTRIBUTION AS A FUNCTION OF TREATMENT SEVERITY
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DOI：
10.1016/0960-8524(91)90169-k
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发表时间：
1991-01-01
影响因子：
11.4
通讯作者：
OVEREND, RP
中科院分区：
文献类型：
--
作者：
BOUCHARD, J;NGUYEN, TS;OVEREND, RP
采用水/蒸汽热机械法对美洲黑杨进行预处理，其中通过快速通过减压阀向中等稠度浆料施加剪切力。 作为处理的结果，生物质材料被部分溶解。 在以前的论文中（Bouchard，J.，阮氏T.美国，Chornet，E. & Overend，R. P.（1990）。 生物质预处理的分析方法。 第1部分：固体残留物。 Biomass，23（4）243-61），讨论了固体的表征。 本论文涉及的表征的水溶性馏分的标准，热（DSC）和光谱（DRIFT）的方法。 结果进行了讨论的严重程度的处理的可溶性木材聚合物的化学结构的影响。 蒸汽爆破和水的过程中的自水解的概念和乙酸所发挥的作用的重要性进行了比较评价。
Populus deltoides was pretreated using an aqueous/steam thermo-mechanical process in which shear forces were applied to medium consistency slurries by rapid passage through homogenizing valves. As a consequence of the treatment the biomass material was partially solubilized. In a previous paper (Bouchard, J., Nguyen, T. S., Chornet, E. & Overend, R. P. (1990). Analytical methodology for biomass pretreatment. Part 1: Solid residues. Biomass, 23 (4) 243-61), the characterization of the solids was discussed. The present paper concerns the characterization of the water-soluble fractions by standard, thermal (DSC) and spectroscopic (DRIFT) methods. The results are discussed in terms of the effect of the severity of the treatment on the chemical structure of the soluble wood polymers. A comparative evaluation between steam explosion and aqueous processes on the importance of the autohydrolysis concept and the role played by acetic acid is presented.