Study on the Inference Factors of Huangling Coking Coal Pyrolysis

2017 3rd International Conference on Environmental Science and Material Application

生态环境科学;材料科学

Du, Meili^1 ; Yang, Zongyi^1 ; Fan, Jinwen^1

School of Chemistry and Chemical Engineering, Xian University of Science and Technology, Xian

710054, China^1

关键词: Coal blending;    Coal particle size;    Coal particles;    Coking coal;    Holding time;    Optimal heating;    Pyrolysis temperature;    Single-factor experiments;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/108/3/032084/pdf
DOI  :  10.1088/1755-1315/108/3/032084

来源: IOP

【 摘 要 】

In order to reasonably and efficiently utilize Huangling coking coal resource, coal particle, heating rate, holding time, pyrolysis temperature and others factors were dicussed for the influence of those factor on Huangling coking coal pyrolysis products. Several kinds of coal blending for coking experiments were carried out with different kinds of coal such as Huangling coking coal, Xida coal with high ash low sufur, Xinghuo fat coal with hign sulfur, Zhongxingyi coking coal with high sulfur, Hucun lean coal, mixed meager and lean coal. The results shown that the optimal coal particle size distribution was 0.5∼1.5mm, the optimal heating rate was 8°C/min, the optimal holding time was 15min, the optimal pyrolysis temperature was 800°C for Huangling coking coal pyrolysis, the tar yield increased from 4.7% to 11.2%. The maximum tar yield of coal blending for coking under the best single factor experiment condition was 10.65% when the proportio of Huangling coking coal was 52%.