Kinetic studies of wheat straw hydrolysis using sulphuric acid
Kinetic studies of wheat straw hydrolysis using sulphuric acid
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DOI：
10.1002/cjce.5450630521
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发表时间：
1985-10
影响因子：
2.1
通讯作者：
S. Ranganathan;D. G. Macdonald;N. Bakhshi
中科院分区：
文献类型：
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作者：
S. Ranganathan;D. G. Macdonald;N. Bakhshi
在间歇式反应器中，采用等温法和非等温法研究了麦草纤维和半纤维素的水解动力学。反应在100℃至210℃之间进行，产品糖使用Bio-Rad HPX-87P液相色谱柱进行分析。纤维素和半纤维素的水解反应均采用简单的一级反应模型，得到了三种不同硫酸浓度(0.5、1.0和1.5%)下的Arrhenius速率方程的动力学参数。活化能随酸浓度的增加而不变，指前因子随酸浓度的增加而增大。为了最大限度地减少实验所需的数据量并获得动力学参数的唯一解，研究了等温和非等温反应数据相结合的技术。
The kinetics of cellulose and hemicellulose hydrolysis of wheat straw were studied using both isothermal and non-isothermal techniques in a batch reactor. Reactions were carried out between 100 and 210°C and product sugars were analyzed using a Bio-Rad HPX-87P liquid chromatographic column. A simple first order series reaction model was used for both cellulose and hemicellulose hydrolysis reactions and kinetic parameters were obtained for the Arrhenius rate equations for three different sulphuric acid concentrations (0.5, 1.0 and 1.5%). Activation energies remained constant with acid concentration but the pre-exponential factors showed an increase with acid concentration. To minimize the amount of experimental data required and to achieve a unique solution to the kinetic parameters, the technique of combining isothermal and non-isothermal reaction data was studied.