One important strategy for process intensification is the enhancement of yield and selectivity in fast gas-liquid reactions, like oxidations, hydrogenations or halogenations. However, the interplay between fluid dynamics and competitive chemical reactions has not yet been understood to an extent that allows tailoring the flow and concentration fields for intensified reactions. To tailor, the fluid dynamic conditions surrounding Taylor bubbles rising in an organic solvent are studied and compared to data of aqueous systems from the literature. The local flow fields are measured using Particle Image Velocimetry (PIV) and compared to spectroscopically derived selectivity data of a competitive consecutive gas-liquid reaction. The general rising behavior of Taylor bubbles in methanol is confirmed to be similar to those of bubbles in aqueous systems. However, as surface active agents do not affect the interface mobility in organic solvents, the local flow structures in the bubble wake differ significantly from those of bubbles rising in water, impacting the mixing behavior. Finally, the flow fields are compared to the concentration fields of the main and side products. Thereby, a decisive influence of the fluid dynamics on yield and selectivity becomes apparent, unveiling the potential for process intensification.

工艺强化的一项重要策略是提高快速气液反应（如氧化、氢化或卤化）的产率和选择性。然而，流体动力学和竞争性化学反应之间的相互作用尚未被理解到允许为强化反应定制流动和浓度场的程度。为了定制，研究了围绕在有机溶剂中上升的泰勒气泡的流体动力学条件，并与文献中的水性系统数据进行了比较。使用粒子图像测速法 (PIV) 测量局部流场，并与竞争性连续气液反应的光谱衍生选择性数据进行比较。泰勒气泡在甲醇中的一般上升行为被证实与水性体系中的气泡相似。然而，由于表面活性剂不影响有机溶剂中的界面迁移率，气泡尾流中的局部流动结构与在水中上升的气泡显着不同，从而影响混合行为。最后，将流场与主要和副产品的浓度场进行比较。因此，流体动力学对产量和选择性的决定性影响变得明显，揭示了工艺强化的潜力。