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中文摘要：
利用煤低温氧化实验系统，研究了在温度为293K-673K，空气流量为100mL／min和程序升温速率为3K／min的条件下，山西浑源烛煤发生热解时C1～C4低分子有机烃的临界解析温度Tm，解析速率函和解析表观活化能Ea．结果表明，CH4，C2H6，C2H4，C3H8，C3H6，i-C4H10和n—C4H10 7种有机烃的Tm为：473K，521K，433K，526K，498K，503K和529K；lnsψ与1／T之间满足直线关系，符合典型的ArrheniusSA动力学特征；其Ea为28．492kJ／mol，13．506kJ／mol，28．096kJ／mol，41．786kJ／mol，68．489kJ／mol，76．763kJ／mol和73．287kJ／m01．7种有机烃的丁。班和E。具有不同的变化特征，根据这些特征，可用来预测煤的富氧低温热解特征及其自燃倾向性．
英文摘要：
It will provide a theoretical suggestion for preventing the coal spontaneous combustion to investigate the low temperature pyrolysis characteristics of coal in O2-enriched con- ditions. The gas release critical temperatures Tm, the gas release rates ψ and the gas release ap- parent activation energies E, of seven C1-C4 low-weight molecular hydrocarbons for Shanxi Hun- yuan cannel coal under the temperature range of 293 K-673 K and the air-supply flow rate of 100mL/min were investigated by using a coal self-heating experimental facility. The results show that the gas release critical temperatures Tm for CH4, C2 H6, C2 H4, C3 H8, C3 H6, i-C4 H10 and n- C4H10 were 473 K,491 K,423 K,513 K,490 K,503 K and 523 K respectively. The logarithmic re- lease rates of hydrocarbons （Inch） were linearly correlated with the reciprocal of absolute tempera- ture （l/T）, which were consistent with typical Arrhenius S A kinetic characteristics. The appar- ent activation energies were 28. 492 kJ/mol, 13. 506 kJ/mol, 28. 096 kJ/mol, 41. 786 kJ/mol, 68. 489 kJ/mol,76. 763 kJ/mol and 73. 287 kJ/mol respectively. Tm ,ψ and E, for seven gaseous hy- drocarbons demonstrated different characteristics, which will be useful for predicting the low temperature pyrolysis characteristics of coal in O2-enriched conditions and the property to coal spontaneous combustion.
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