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A Study of On-line Analysis of Hydrogen Chloride Evolution During Coal Combustion

机译:煤燃烧过程中氯化氢释放的在线分析研究

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摘要

This study involved the use of a thermogravimetric analyzer (TG) interfaced with a fourier transform infrared spectrometer (FTIR) and a mass spectrometer (MS) to determine the evolution of hydrogen chloride from coal during combustion as a function of the chlorine content and mesh size of the coal. It was determined that combined TG-FTIR and TG-MS systems offer the user an efficient means to investigate the mechanism of hydrogen chloride evolution from coal combustion. From the HC1 evolution profiles, it was determined that a good correlation exists between the chlorine content in the coal and the total amount of HC1 evolved. From the HC1 evolution profiles, three HC1 peak maxima were determined. The first two peaks corresponded to HC1 evolution from chloride ions associated with the hydrated coal matrix. The third HC1 evolution peak corresponded to the presence of inorganic chlorides in the coal. It was also determined that the first HC1 evolution peak was related to the particle size of the coal, in that this peak shifted to a lower temperature for smaller mesh sizes.
机译:这项研究涉及使用热重分析仪(TG),傅立叶变换红外光谱仪(FTIR)和质谱仪(MS),以确定燃烧过程中煤中氯化氢的释放与氯含量和筛孔尺寸的关系。煤炭。已经确定,组合的TG-FTIR和TG-MS系统为用户提供了一种有效的手段来研究煤燃烧产生氯化氢的机理。从HC1逸出曲线可以确定,煤中氯含量与HC1逸出总量之间存在良好的相关性。根据HC1的演变曲线,确定了三个HC1峰值最大值。前两个峰对应于HCl从与水合煤基质缔合的氯离子中释放出来。第三个HCl逸出峰对应于煤中存在无机氯化物。还确定了第一个HCl析出峰与煤的粒径有关,因为对于较小的筛目,该峰移至较低的温度。

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    Humble Jennifer;

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  • 年度 1996
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