Micromixing in a Rotating Packed Bed
Micromixing in a Rotating Packed Bed
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DOI：
10.1252/jcej.37.1122
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发表时间：
2004-09
影响因子：
0.8
通讯作者：
Yu‐Shao Chen;Hwai‐Shen Liu;Chia-Chang Lin;Wen-Tzong Liu
中科院分区：
文献类型：
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作者：
Yu‐Shao Chen;Hwai‐Shen Liu;Chia-Chang Lin;Wen-Tzong Liu
在Higee液/液体系中进行平行竞争化学测试反应以评估微观混合效率。实验结果表明，提高转速和液体流量可以有效地强化微混合。在Higee系统中的微观混合效率被证明是高于其他类型的混合装置，和离心力也是有效的，在提高微观混合时，液体粘度增加。然后获得了经验关联式，这意味着特征混合时间与转速的-0.64次方成正比。为了研究微观混合与传质的关系，进行了脱氧实验。结果表明，传质阻力随微观混合效率的提高而减小。
A parallel-competing chemical test reaction was performed in a Higee liquid/liquid system to evaluate the micromixing efficiency. According to the experimental results, it indicated that increasing rotational speed and liquid flow rate could intensify micromixing effectively. The micromixing efficiency in a Higee system was shown to be higher than other reported types of mixing devices, and the centrifugal force was also effective in enhancing micromixing when the liquid viscosity increased. An empirical correlation was then obtained, implying that the characteristic mixing time was proportional to the rotational speed to the power of –0.64. To investigate the relation between micromixing and mass transfer, an experiment of deoxygenation was performed. It is found that mass transfer resistance decreased as the micromixing efficiency increased.