College of Life Science and Technology, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan 430074, PR China.
China-EU Institute for Clean and Renewable Energy, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan 430074, PR China.
Bioresour Technol. 2015 Jun;185:324-30. doi: 10.1016/j.biortech.2015.03.005. Epub 2015 Mar 6.
In this study, the effect of pretreatment with Echinodontium taxodii on thermal decomposition characteristics and kinetics of bamboo wastes was investigated by thermogravimetric analysis. The results showed fungal pretreatment can enhance the thermal degradation of bamboo. The negative effect of extractives in bamboo on the thermal decomposition can be decreased by the pretreatment. A modified three-parallel-reactions model based on isolated lignin was firstly proposed to study pyrolysis kinetics of bamboo lignocellulose. Kinetic analysis showed that with increasing pretreatment time fungal delignification was enhanced to transform the lignin component with high activation energy into that with low activation energy and raise the cellulose content in bamboo, making the thermal decomposition easier. These results demonstrated fungal pretreatment provided a potential way to improve thermal conversion efficiency of bamboo.
在这项研究中，通过热重分析研究了 Taxodium 预处理对竹废料热分解特性和动力学的影响。结果表明，真菌预处理可以增强竹的热降解。预处理可以降低竹材中抽提物对热分解的负面影响。本文首次提出了一种基于分离木质素的改进三平行反应模型，用于研究竹木质纤维素的热解动力学。动力学分析表明，随着预处理时间的增加，真菌脱木质素作用增强，将高活化能的木质素组分转化为低活化能的木质素组分，提高了竹材中的纤维素含量，使热分解更容易。这些结果表明，真菌预处理为提高竹材的热转化效率提供了一种潜在的途径。
