Mass transfer characteristics in a rotating packed bedwith split packing

doi:10.1016/j.cjche.2014.09.051

Chin.J.Chem.Eng. ›› 2015, Vol. 23 ›› Issue (5): 868-872.DOI: 10.1016/j.cjche.2014.09.051

• RESEARCH NOTES • Previous Articles

Mass transfer characteristics in a rotating packed bedwith split packing

Youzhi Liu, Deyin Gu, Chengcheng Xu, Guisheng Qi, Weizhou Jiao

Shanxi Province Key Laboratory of Higee-oriented Chemical Engineering, North University of China, Taiyuan 030051, China;
Research Center of Shanxi Province for High Gravity Chemical Engineering and Technology, North University of China, Taiyuan 030051, China

Received:2014-04-22 Revised:2014-09-12 Online:2015-06-26 Published:2015-05-28
Contact: Youzhi Liu
Supported by:
Supported by the National Natural Science Foundation of China (21376229, 21206153).

Mass transfer characteristics in a rotating packed bedwith split packing

Youzhi Liu, Deyin Gu, Chengcheng Xu, Guisheng Qi, Weizhou Jiao

Shanxi Province Key Laboratory of Higee-oriented Chemical Engineering, North University of China, Taiyuan 030051, China;
Research Center of Shanxi Province for High Gravity Chemical Engineering and Technology, North University of China, Taiyuan 030051, China

通讯作者: Youzhi Liu
基金资助:
Supported by the National Natural Science Foundation of China (21376229, 21206153).

Abstract

Abstract: The rotating packed bed (RPB) with split packing is a novel gas-liquid contactor, which intensifies the mass transfer processes controlled by gas-side resistance. To assess its efficacy, the mass transfer characteristics with adjacent rings in counter-rotation and co-rotation modes in a split packing RPB were studied experimentally. The physical absorption system NH₃-H₂O was used for characterizing the gas volumetric mass transfer coefficient (k_ya_e) and the effective interfacial area (a_e) was determined by chemical absorption in the CO₂-NaOH system. The variation in k_ya_e and a_e with the operating conditions is also investigated. The experimental results indicated that k_ya_e and a_e for counter-rotation of the adjacent packing rings in the split packing RPB were higher than those for co-rotation, and both counter-rotation and co-rotation of the split packing RPB were superior over conventional RPBs under the similar operating conditions.

Key words: Rotating packed bed (RPB), Split packing, Mass transfer, Physical absorption, Chemical absorption

摘要： The rotating packed bed (RPB) with split packing is a novel gas-liquid contactor, which intensifies the mass transfer processes controlled by gas-side resistance. To assess its efficacy, the mass transfer characteristics with adjacent rings in counter-rotation and co-rotation modes in a split packing RPB were studied experimentally. The physical absorption system NH₃-H₂O was used for characterizing the gas volumetric mass transfer coefficient (k_ya_e) and the effective interfacial area (a_e) was determined by chemical absorption in the CO₂-NaOH system. The variation in k_ya_e and a_e with the operating conditions is also investigated. The experimental results indicated that k_ya_e and a_e for counter-rotation of the adjacent packing rings in the split packing RPB were higher than those for co-rotation, and both counter-rotation and co-rotation of the split packing RPB were superior over conventional RPBs under the similar operating conditions.

关键词: Rotating packed bed (RPB), Split packing, Mass transfer, Physical absorption, Chemical absorption

Youzhi Liu, Deyin Gu, Chengcheng Xu, Guisheng Qi, Weizhou Jiao. Mass transfer characteristics in a rotating packed bedwith split packing[J]. Chin.J.Chem.Eng., 2015, 23(5): 868-872.

Youzhi Liu, Deyin Gu, Chengcheng Xu, Guisheng Qi, Weizhou Jiao. Mass transfer characteristics in a rotating packed bedwith split packing[J]. Chinese Journal of Chemical Engineering, 2015, 23(5): 868-872.

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Mass transfer characteristics in a rotating packed bedwith split packing

Mass transfer characteristics in a rotating packed bedwith split packing

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