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| Physicochemical properties and gasification reactivity of bituminous coal and char |
| Ren Liwei, Wei Ruidi, Gao Yuhong, Xin Jing, Liang Yanan, Shen Liying |
| Department of Chemistry Chemical Engineering and Material, Handan University, Handan 056005, China |
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Abstract In order to understand the physicochemical properties and gasification reactivity of bituminous coal char, and offer basic data for bituminous gasification, the physicochemical properties of Xichagou bituminous coal char were detailed explored using the technical analysis method of X-ray diffraction (XRD), fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM)etc., and combined with the analysis results of bituminous coal, and the gasification reactivity of the coal char was also investigated using thermogravimetric instrument. The results show that the graphitized degree of coal char is relatively higher than that of raw coal, the C—O bonds are very limited, bituminous char has loose and ordered surface structure, carbon pore structure is very developed.The well-developed pore structure of coal char is conductive to the coal char gasification reaction, so the Xichagou bituminous coal char has good gasification reactivity.
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