The kinetics experiments of fast reaction process of propylene chlorination at low temperature (30–90°C) and high temperature (420–480°C) are respectively conducted, and the corresponding reaction mechanisms and kinetics models are proposed. The radical mechanism at high temperature and the molecular mechanism at low temperature are found to be most likely with the experimental results. Specifically, the kinetics model, firstly considering the reversible reaction step of forming C₃H₆Cl· and direct hydrogen abstraction of forming C₃H₅·, shows better agreement with the experimental data. Furthermore, the critical reaction temperature T_critical is firstly proposed to determine the dominant reaction mechanism in different conditions, and correspondingly the combination method of the high-temperature and low-temperature kinetics models has been adopted for tubular reactor simulation, which can reasonably reflect the influence of wide variation range of temperature in the reactor and guide the industrial reactor design in the further work.

中文翻译：

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丙烯氯化反应过程动力学建模与反应器模拟

分别进行了丙烯氯化快速反应过程在低温（30-90℃）和高温（420-480℃）下的动力学实验，并提出了相应的反应机理和动力学模型。实验结果发现高温自由基机制和低温分子机制最有可能。具体而言，动力学模型中，首先考虑形成C的可逆反应步骤₃ ħ ₆氯·以及形成的C直接夺氢₃ ħ ₅ ·，与实验数据表现出更好的协议。此外，临界反应温度Ť_临界 首次提出确定不同条件下的主导反应机理，并相应采用高温和低温动力学模型相结合的方法进行管式反应器模拟，可以合理反映温度变化范围大的影响。反应器并指导工业反应器设计的进一步工作。