Abstract:

Liquid-liquid heterogeneous reactions are widely involved in various fields of the petrochemical and fine chemical industries. Owing to the difference in the physical and chemical properties of the liquid-liquid phase and the existence of the phase interface, the liquid-liquid heterogeneous reaction process is usually affected by both intrinsic reaction kinetics and the transfer process. Therefore, enhancing the liquid-liquid heterogeneous reaction transfer process and matching it with the reaction kinetics to achieve efficient utilization of raw materials and energy has always been one of the hot topics of researchers. Focusing on the intensifying mechanism and application of the liquid-liquid heterogeneous reactions and transfer processes, this paper takes typical heterogeneous reactions such as nitrification and dehydrochlorination reactions as examples, combined with the basic characteristics of reaction kinetics, thermodynamics and transfer processes, reviews the mechanism of the effect of the transfer-reaction process coupling on reaction selectivity and spatio-temporal yield, and describes the challenges faced by industrial applications and the solutions by process intensification. Furthermore, the application potential of liquid-liquid heterogeneous reaction process intensification is prospected from the perspective of matching the reaction and transfer processes.

Key words: liquid-liquid heterogeneous reaction, intrinsic dynamics, mass transfer, heat transfer, process intensification

摘要：

液-液非均相反应广泛存在于石油化工和精细化工的各个领域中。由于液-液两相物理化学性质差异以及相界面的存在，其反应过程通常受本征反应动力学和传递过程的共同影响。因此，增强液-液非均相反应传递过程并使之与反应动力学相匹配，实现原料、能源高效利用一直是研究者们关注的热点之一。围绕液-液非均相反应与传递过程强化机理与应用，以硝化反应、脱氯化氢反应等典型非均相反应为例，结合反应动力学、热力学和传递过程基本特征，综述了传递-反应过程耦合影响反应选择性和时空产率机制，阐述了工业化应用面临的挑战及过程强化解决策略，进而从传递过程匹配反应过程出发，展望了液-液非均相反应过程强化发展方向。

关键词: 液-液非均相反应, 本征动力学, 质量传递, 热量传递, 过程强化