Abstract To better understand the interplay of fluid dynamics, mass transport, and chemical reactions in multi-phase reactors, each of these effects needs to be studied separately. In particular, reactions are hard to study separately from mass transport. In this work, using a new reactor concept a macroscopic reaction kinetics of the oxidation of toluene is determined in homogeneous liquid-phase. By operating at elevated pressure, mass transport limitations are avoided. The reactor concept requires the measurement of the oxygen concentration within the organic liquid phase, which further allows to setup an atomic oxygen balance. Running experiments at different oxygen flow rates, a kinetic model was parameterized, which describes the experimental results for oxygen flow rates in an industrially relevant range. Since the developed model has no mass transport limitations, it can be used in processes where independent modelling of mass transport and chemical reactions are combined, such as with computational fluid dynamics.

中文翻译：

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均相液相中甲苯氧化的动力学研究

摘要 为了更好地理解多相反应器中流体动力学、传质和化学反应的相互作用，需要分别研究这些影响中的每一种。特别是，很难将反应与质量传输分开研究。在这项工作中，使用新的反应器概念，在均相液相中确定了甲苯氧化的宏观反应动力学。通过在高压下操作，避免了质量传输限制。反应器概念需要测量有机液相内的氧浓度，这进一步允许建立原子氧平衡。在不同的氧气流速下运行实验，动力学模型被参数化，它描述了工业相关范围内氧气流速的实验结果。