Comparative study on characteristics of fast pyrolysis products of Shaerhu coal and Zhundong coal at different temperatures
Three coal samples from Shaerhu area and six coal samples from Zhundong area,including Zhundong coal,Yihua coal and Hongshaquan coal,were used to conduct rapid pyrolysis reactions at 400℃,600℃,800℃and 1 000℃.The pyrolysis gas was analyzed by gas chromatography and tar products were analyzed by GC-MS to explore the influence of temperature on the pyrolysis products of the six coal samples.The results showed that the gas products of the three coal samples from Shaerhu area had richer components under four temperatures,and the phenol content was the highest and the olefin content was the lowest among the coal tar components generated by pyrolysis at 600℃.The pyrolysis products of Zhundong coal and Yihua coal were mainly alkanes.In addition,the pyrolysis products of three coal samples from Shaerhu area had similar characteristics to those of Hongshaquan coal.
fast pyrolysisShaerhu coalZhundong coalpyrolysis temperaturegaseous producttar composition