Mass transfer performance of structured packings in a CO_2 absorption tower  

二氧化碳吸收塔内规整填料的传质性能(英文)

作　　者：杨伟 于笑丹 密建国 王万福 陈健 

机构地区：[1]State Key laboratory of Chemical Engineering, Tsinghua University [2]State Key Laboratory of Organic–Inorganic Composites, Beijing University of Chemical Technology [3]CNPC Research Institute of Safety & Environment Technology

出　　处：《Chinese Journal of Chemical Engineering》2015年第1期42-49,共8页中国化学工程学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China(51134017)and Petro China(2011E-24-09)

摘　　要：This paper studies the mass transfer performance of structured packings in the absorption of CO2 from air with aqueous Na OH 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 Pa0.5and aqueous Na OH 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.This paper studies the mass transfer performance of structured packings in the absorption of CO2 from air with aqueous Na OH 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 Pa0.5and aqueous Na OH 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 

分 类 号：TQ028.14[化学工程]