Mass transfer area in a multi-stage high-speed disperser with split packing

doi:10.1016/j.cjche.2018.10.012

Chinese Journal of Chemical Engineering ›› 2019, Vol. 27 ›› Issue (4): 772-780.DOI: 10.1016/j.cjche.2018.10.012

• Fluid Dynamics and Transport Phenomena • Previous Articles Next Articles

Mass transfer area in a multi-stage high-speed disperser with split packing

Tao Ai¹, Aslam M. Mudassar¹, Ziqi Cai¹, Zhengming Gao^1,2

1 State Key Laboratory of Chemical Resource Engineering, School of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China;
2 Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China

Received:2018-08-21 Revised:2018-10-19 Online:2019-06-14 Published:2019-04-28
Contact: Ziqi Cai, Zhengming Gao
Supported by:
Supported by the National Natural Science Foundation of China (21676007, 21506005).

Mass transfer area in a multi-stage high-speed disperser with split packing

Tao Ai¹, Aslam M. Mudassar¹, Ziqi Cai¹, Zhengming Gao^1,2

1 State Key Laboratory of Chemical Resource Engineering, School of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China;
2 Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China

通讯作者: Ziqi Cai, Zhengming Gao
基金资助:
Supported by the National Natural Science Foundation of China (21676007, 21506005).

Abstract

Abstract: In this study, the mean droplet diameter in the cavity zone and the total mass transfer area of a multi-stage highspeed disperser (HSD) reactor with different packing combinations were measured and evaluated. The effects of rotational speed and packing radius, as well as the packing ring radius and numbers, on the mean droplet diameter and the total mass transfer area were evaluated. A model was established to calculate the mass transfer area in the cavity zone in the HSD reactor, and it was found that the packings contribute 61%-82% of the total mass transfer area. A correlation for predicting the mass transfer area in the packing zone was regressed by the dimensionless analysis method. An enhancement factor based on the mass transfer area in the packing zone was proposed to evaluate the effect of packing combination on mass transfer area. Two optimum packing combinations were proposed in consideration of the mean droplet diameter and the enhancement factor.

Key words: High-speed disperser, Mean droplet diameter, Mass transfer area, Split packing

摘要： In this study, the mean droplet diameter in the cavity zone and the total mass transfer area of a multi-stage highspeed disperser (HSD) reactor with different packing combinations were measured and evaluated. The effects of rotational speed and packing radius, as well as the packing ring radius and numbers, on the mean droplet diameter and the total mass transfer area were evaluated. A model was established to calculate the mass transfer area in the cavity zone in the HSD reactor, and it was found that the packings contribute 61%-82% of the total mass transfer area. A correlation for predicting the mass transfer area in the packing zone was regressed by the dimensionless analysis method. An enhancement factor based on the mass transfer area in the packing zone was proposed to evaluate the effect of packing combination on mass transfer area. Two optimum packing combinations were proposed in consideration of the mean droplet diameter and the enhancement factor.

关键词: High-speed disperser, Mean droplet diameter, Mass transfer area, Split packing

Tao Ai, Aslam M. Mudassar, Ziqi Cai, Zhengming Gao. Mass transfer area in a multi-stage high-speed disperser with split packing[J]. Chinese Journal of Chemical Engineering, 2019, 27(4): 772-780.

Tao Ai, Aslam M. Mudassar, Ziqi Cai, Zhengming Gao. Mass transfer area in a multi-stage high-speed disperser with split packing[J]. 中国化学工程学报, 2019, 27(4): 772-780.

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Mass transfer area in a multi-stage high-speed disperser with split packing

Mass transfer area in a multi-stage high-speed disperser with split packing

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