Citation: WANG Jun-li, ZHAO Qiang, HAO Xiao-gang, HUANG Wei, ZHAO Jian-guo. Low temperature co-pyrolysis of low rank coal with biomass and its influence on pyrolysis-derived products[J]. Journal of Fuel Chemistry and Technology, ;2021, 49(1): 37-46. doi: 10.19906/j.cnki.JFCT.2021003 shu

Low temperature co-pyrolysis of low rank coal with biomass and its influence on pyrolysis-derived products

WANG Jun-li ^1,, ,
ZHAO Qiang ¹ ,
HAO Xiao-gang ^2,, ,
HUANG Wei ^2,3 ,
ZHAO Jian-guo ^1,,

1.
College of Chemistry and Chemical Engineering, Shanxi Datong University, Datong 037009, China
2.
College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China
3.
Key Laboratory of Coal Science and Technology of Education Ministry and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China

Corresponding author: WANG Jun-li, wangjunlitylg@126.com HAO Xiao-gang, xghao@tyut.edu.cn ZHAO Jian-guo, jgzhaoshi@163.com
Received Date: 9 September 2020
Revised Date: 16 October 2020

Fund Project: The project was supported by the National Natural Science Foundation of China (21908135), Shanxi Province Science Foundation for Youths (201901D211435), Shanxi Province Foundation for Returness (2019-20) and Science and Technology Innovation Project for Colleges and Universities in Shanxi Province (201802096)

Figures(7)

The co-pyrolysis behavior of two low rank coals (Inner Mongolia Xinghe coal, Xiaolongtan coal) and three common biomasses (straw, sunflower, apple tree branches) was investigated by non-isothermal thermogravimetric analysis and fixed bed experiments. The results show that whether the co-pyrolysis of biomass and coal has synergistic effects is closely related to the type and the adding amount of biomass. The synergistic effect during the co-pyrolysis of Inner Mongolia Xinghe coal and apple tree branches at the mixing proportion 2∶1 is found to be the most obvious, which is further proved by an analysis of co-pyrolysis products in a fixed bed. The analysis results of tar component show that the content of oxygenated compounds in tar increases, but the amount of hydrocarbons decreases. The co-pyrolysis can increase the yield of tar but it cannot improve the quality of tar.
- low rank coal,
- biomass,
- co-pyrolysis,
- tar
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