Mass transfer performance of structured packings in a CO2 absorption tower

doi:10.1016/j.cjche.2014.10.003

Chin.J.Chem.Eng. ›› 2015, Vol. 23 ›› Issue (1): 42-49.DOI: 10.1016/j.cjche.2014.10.003

• SEPARATION SCIENCE AND ENGINEERING • Previous Articles Next Articles

Mass transfer performance of structured packings in a CO₂ absorption tower

Wei Yang^1,2, Xiaodan Yu³, Jianguo Mi², Wanfu Wang³, Jian Chen¹

1 State Key laboratory of Chemical Engineering, Tsinghua University, Beijing 100084, China;
2 State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China;
3 CNPC Research Institute of Safety & Environment Technology, Beijing 102206, China

Received:2013-04-09 Revised:2013-12-12 Online:2015-01-24 Published:2015-01-28
Contact: Jian Chen
Supported by:
Supported by the National Natural Science Foundation of China (51134017) and PetroChina (2011E-24-09).

Mass transfer performance of structured packings in a CO₂ absorption tower

Wei Yang^1,2, Xiaodan Yu³, Jianguo Mi², Wanfu Wang³, Jian Chen¹

1 State Key laboratory of Chemical Engineering, Tsinghua University, Beijing 100084, China;
2 State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China;
3 CNPC Research Institute of Safety & Environment Technology, Beijing 102206, China

通讯作者: Jian Chen
基金资助:
Supported by the National Natural Science Foundation of China (51134017) and PetroChina (2011E-24-09).

Abstract

Abstract: This paper studies the mass transfer performance of structured packings in the absorption of CO₂ from air with aqueous NaOH solution. The Eight structured packings tested are sheet metal ones with corrugations of different geometry parameters. Effective mass transfer area and overall gas phase mass transfer coefficient have been measured in an absorption column of 200 mm diameter under the conditions of gas F-factor in 0.38-1.52 Pa^0.5 and aqueous NaOH solution concentration of 0.10-0.15 kmol·m^-3. The effects of gas/liquid phase flow rates and packing geometry parameters are also investigated. The results show that the effective mass transfer area changes not only with packing geometry parameters and liquid load, but also with gas F-factor. A new effective mass transfer area correlation on the gas F-factor and the liquid load was proposed, which is found to fit experiment data very well.

Key words: Separation, Absorption, Mass transfer, Packed bed, Structured packing, Carbon dioxide

摘要： This paper studies the mass transfer performance of structured packings in the absorption of CO₂ from air with aqueous NaOH solution. The Eight structured packings tested are sheet metal ones with corrugations of different geometry parameters. Effective mass transfer area and overall gas phase mass transfer coefficient have been measured in an absorption column of 200 mm diameter under the conditions of gas F-factor in 0.38-1.52 Pa^0.5 and aqueous NaOH solution concentration of 0.10-0.15 kmol·m^-3. The effects of gas/liquid phase flow rates and packing geometry parameters are also investigated. The results show that the effective mass transfer area changes not only with packing geometry parameters and liquid load, but also with gas F-factor. A new effective mass transfer area correlation on the gas F-factor and the liquid load was proposed, which is found to fit experiment data very well.

关键词: Separation, Absorption, Mass transfer, Packed bed, Structured packing, Carbon dioxide

Wei Yang, Xiaodan Yu, Jianguo Mi, Wanfu Wang, Jian Chen. Mass transfer performance of structured packings in a CO₂ absorption tower[J]. Chin.J.Chem.Eng., 2015, 23(1): 42-49.

Wei Yang, Xiaodan Yu, Jianguo Mi, Wanfu Wang, Jian Chen. Mass transfer performance of structured packings in a CO₂ absorption tower[J]. Chinese Journal of Chemical Engineering, 2015, 23(1): 42-49.

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Mass transfer performance of structured packings in a CO₂ absorption tower

Mass transfer performance of structured packings in a CO₂ absorption tower

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