煤低温氧化阶段是煤自热发展到自燃的一个最重要的阶段，低温氧化动力学是研究这个兼具多类型化学反应序列过程的一个重要理论基础。以往的研究主要利用Arrhenius动力学模型来表征煤氧反应速率与反应温度的关系，而越来越多的研究表明采用单一的Arrhenius动力学模型无法严谨地描述这个复杂的动力过程，也无法科学解释煤低温氧化实验结果差异性的原因。本项目立足于这个现状，通过理论延伸、实验及数值模拟验证和适用性选配的总体研究技术路线，揭示煤氧低温反应吸附序列所激发的的时间效应的显现规律；建立协同时间效应的煤低温氧化表观动力学模型并采用实验和数值模拟有机结合的研究思路完成模型验证；掌握煤低温氧化动力主控模式的切换规律；提出不同主控动力模式间效果因子的数学概念和计算方法，甄别新旧动力学模型间的交叉适用范围。预计研究成果对煤自燃动力学理论的发展有一定的现实意义。

Low temperature coal oxidation is the most critical stage within the process from self-heating to self-ignition of coal. Low temperature coal oxidation kinetics is an important theoretical basis and technical method to investigate the complex thermal process which contains various chemical reaction sequence and multiple physical fields. Previous studies mainly employed Arrhenius kinetic model to study the correlation between oxidation rate and reaction temperature. However, a growing number of studies have shown that the simple Arrhenius kinetic model was unable to rigorously describe the complex dynamic process and to scientifically explain the reason for the differences between coal low temperature oxidation experimental results. Based on the status quo, the project follows such a research path as theory promotion, experimental justification and applicability extension. The purpose of the project is to establish a revised apparent kinetic model of low temperature coal oxidation considering time effect intrigued by the oxygen adsorption sequence and to validate the model by the combination of experiment and numerical simulation; to grasp the differences and causes of low temperature oxidation apparent kinetic models under different governing regimes by properly adjusting the testing conditions; to expand the applicability of the new model and to reveal the crossing application scope of the new and old kinetic models by proposing the concept and calculation method of the effectiveness factor between different governing regimes. It is expected that the research results can reveal deeper characteristics of low temperature oxidation of coal and have certain practical significance to the development of coal spontaneous combustion theory.