丙酸预处理小麦秸秆的纤维素水解动力学
DOI: 10.6041/j.issn.1000-1298.2012.09.021, PP. 111-115
Keywords: 小麦秸秆,纤维素,丙酸,水解动力学
Abstract:
利用丙酸法预处理小麦秸秆，测定了不同温度下反应产物中葡萄糖质量浓度，并根据Saeman模型，计算得到了纤维素水解和葡萄糖降解的动力学数据，其活化能分别为6.5086×104J/mol和5.6223×104J/mol。动力学分析表明：纤维素水解反应速度快，但是生成的葡萄糖容易发生降解；该模型的最优化反应条件为80℃和176min，实验得到的葡萄糖质量浓度为8.89g/L，与模型预测结果偏差很小。
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