Abstract In order to get a better micromixing performance, an intensification reactor that couples a confined impinging jet reactor and high speed disperser (CIJR-HSD) was designed. The influences of operating and structural parameters on the micromixing performance were investigated by using the iodide-iodate reaction system. The results showed that the segregation index decreased with the increase of both the rotational speed and the number of rotors; whilst there was little influence due to both inlet flow rate and the presence of packing. The coupling distance between the centre of the CIJR and the first rotor of the HSD also had a non-negligible effect on segregation index. The micromixing time was determined by the Engulfment model, and could also be evaluated by the energy dissipation model based on fluid energy transformation. It was found that the micromixing time for the CIJR-HSD device was in the range of 0.1–0.3 ms, while that for a single CIJR was in the range of 0.35–0.5 ms.

中文翻译：

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密闭冲击射流反应器/高速分散器的微混合性能和建模

摘要 为了获得更好的微混合性能，设计了一种将受限冲击射流反应器和高速分散器耦合的强化反应器（CIJR-HSD）。使用碘化物-碘酸盐反应体系研究了操作和结构参数对微混合性能的影响。结果表明，离析指数随着转速和转子数的增加而降低；而由于入口流速和填料的存在，影响很小。CIJR 中心与 HSD 第一转子之间的耦合距离对偏析指数也有不可忽视的影响。微混合时间由 Engulfment 模型确定，也可以通过基于流体能量转换的能量耗散模型进行评估。