Study on Pyrolysis of Maceral Concentrate from Shenmu Coal
SUN Qing-lei
LI Wen
LI Bao-qing
Abstract：Pyrolysis of maceral concentrate from Shenmu coal was performed using TGA. The effect of temperature on weight loss, FT-IR spectra of char, distribution of elements and removal of sulfur and nitrogen was investigated. The results indicate that with the increase of temperature, weight loss is remarkable in the range of 400～700 ℃ for vitrinite and inertinite, but vitrinite has a lower peak temperature, a greater weight loss rate and a higher desulfurization and denitrogenation than those of inertinite; the vitrinite char has a higher hydrogen and oxygen content, a lower carbon content than inertinite char. With the increase of temperature, the aliphatic C—H, aromatic ether, and hydroxyl groups begin to be resolved. When temperature gose up to 700 ℃, they disappear. Meanwhile, carbon content increases but hydrogen and oxygen content decreases, and sulfur and nitrogen vary a little. High temperature is favourable to the removal of sulfur and nitrogen.
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Publication Date：2001-05-02
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 272-276 )