Co-pyrolysis characteristics and kinetics of rice straw and low rank coal

被引：1

作者：

Xu, Donghai ^{[1
]}

Yang, Lijie ^{[1
]}

Liu, Huanteng ^{[1
]}

Sun, Shaoyan ^{[1
]}

Ma, Mingyan ^{[1
]}

Zhi, Youwei ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Key Lab Thermofluid Sci & Engn, Sch Energy & Power Engn, Minist Educ, Xian 710049, Shaanxi, Peoples R China

来源：

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS | 2024年 / 183卷

基金：

中国国家自然科学基金;

关键词：

Co-pyrolysis; Rice straw; Low rank coal; Synergistic effect; LIGNOCELLULOSIC BIOMASS; CHAR STRUCTURE; EVOLUTION; BEHAVIORS; PRODUCTS; LIGNITE; BLENDS;

D O I：

10.1016/j.jaap.2024.106741

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The pyrolysis utilization of coal and biomass is significant for energy strategy and carbon emission reduction. This work specifically concentrated on the co-pyrolysis research of low-rank coal and rice straw. Firstly, fundamental properties of rice straw and Huangling coal were characterized. Subsequently, co-pyrolysis of rice straw and Huangling coal was extensively investigated mainly thorough TG-FTIR. The results indicated that the heating rate has had little effect on the pyrolysis weight loss rate. The mixture of 40 wt% rice straw produced the best effect, with the strongest synergistic effect occurring in the temperature range of 552-610 K. The mixture of 20 wt%, 40 wt%, and 60 wt% rice straw exhibited similar pyrolysis characteristics in experiments. Using model fitting and model free methods for kinetic analysis, the mixture of 20 wt% rice straw showed negative synergistic effects, with the highest activation energy increasing by 20.2 %. This study provides new ideas for the low consumption and efficient utilization of low rank coal and agricultural waste, and gives basic and effective data support for industrialization.

引用

页数：13

共 41 条

[1] A comparative applicability study of model-fitting and model-free kinetic analysis approaches to non-isothermal pyrolysis of coal and agricultural residues [J].