Micromixing efficiency in a rotating packed bed with non-Newtonian fluid
Micromixing efficiency in a rotating packed bed with non-Newtonian fluid
复制标题
非牛顿流体旋转填充床中的微混合效率
DOI：
10.1016/j.cej.2018.07.141
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发表时间：
2018-12
影响因子：
15.1
通讯作者：
Chen Jian Feng
中科院分区：
文献类型：
--
作者：
Ouyang Yi;Xiang Yang;Gao Xue Ying;Li Wen Ling;Zou Hai Kui;Chu Guang Wen;Chen Jian Feng
反应器的微观混合性能对聚合、制药、结晶等快速反应有着重要的影响。本文以Villermaux-Dushman碘化物-碘酸盐反应体系为基础，在旋转填料床（RPB）中对非牛顿流体（CMC溶液）的微观混合进行了实验研究。建立了考虑剪切稀化流变特性的二维旋转床计算流体力学（CFD）模型。实验和数值计算结果均表明，旋转床内的剪切稀化现象使旋转床内的微观混合性能显著提高。CMC浓度是一个重要的影响因素，它对微混合效率的影响与液体流量有很大的不同。此外，根据掺混模型和实验结果，确定了旋转床与非牛顿流体的微观混合时间为4.1 × 10−4s ~ 1.9 × 10−3s。这一基础研究对反应器处理非牛顿流体的实际操作具有指导意义。
Micromixing performance of reactors has great influence on fast reactions such as polymerization, pharmaceutical and crystallization applications. In this work, based on Villermaux–Dushman iodide–iodate reaction system, an experimental investigation of micromixing with non-Newtonian fluid (CMC solution) in a rotation packed bed (RPB) was carried out. And a two-dimensional RPB Computational Fluid Dynamics (CFD) model coupled with shear-thinning rheological property was developed. Both experimental and numerical results indicated that increasing rotational speed could dramatically improve the micromixing performance due to the shear-thinning behavior in the RPB. Especially, the CMC concentration was an important factor that should be carefully considered, which showed quite different impacts on micromixing efficiency with liquid flow rate. In addition, based on incorporation model and experimental results, the micromixing time of the RPB with non-Newtonian fluid was determined as 4.1 × 10−4s–1.9 × 10−3s. This fundamental research had guiding significance for practical operations of RPBs when processing non-Newtonian fluids.
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影响因子：
4.2
作者：
P. Sandilya;D. P. Rao;A. Sharma;G. Biswas
通讯作者：
P. Sandilya;D. P. Rao;A. Sharma;G. Biswas
影响因子：
8.6
作者：
Chia-Chang Lin;Yu-Ren Su
通讯作者：
Chia-Chang Lin;Yu-Ren Su
DOI：
10.2514/6.1985-484
发表时间：
1985-01
期刊：
--
影响因子：
--
作者：
J. Dannenhoffer;J. Baron
通讯作者：
J. Dannenhoffer;J. Baron
影响因子：
3.8
作者：
Woyuan Li;Wei Wu;Hai-kui Zou;Guang‐wen Chu;L. Shao;Jianfeng Chen
通讯作者：
Woyuan Li;Wei Wu;Hai-kui Zou;Guang‐wen Chu;L. Shao;Jianfeng Chen
DOI：
--
发表时间：
1989-06
期刊：
--
影响因子：
--
作者：
H. A. Barnes;J. F. Hutton;K. Walters
通讯作者：
H. A. Barnes;J. F. Hutton;K. Walters