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Mass transfer characteristics of CO2 absorption into 1-butyl-3-methylimidazolium tetrafluoroborate aqueous solution in microchannel
International Journal of Heat and Mass Transfer ( IF 5.2 ) Pub Date : 2019-01-01 , DOI: 10.1016/j.ijheatmasstransfer.2018.09.077 Chunyan Chu , Fanbin Zhang , Chunying Zhu , Taotao Fu , Youguang Ma
International Journal of Heat and Mass Transfer ( IF 5.2 ) Pub Date : 2019-01-01 , DOI: 10.1016/j.ijheatmasstransfer.2018.09.077 Chunyan Chu , Fanbin Zhang , Chunying Zhu , Taotao Fu , Youguang Ma
Abstract The mass transfer characteristics of CO2 absorption into aqueous solution of ionic liquid in microchannel was investigated experimentally by a high speed camera. The influences of the ratio of gas and liquid flow rates (QG/QL) and the concentration of ionic liquid on the liquid side volumetric mass transfer coefficient (kLa), liquid side mass transfer coefficient (kL) and length of mass transfer zone (LM) were studied systematically. The results show that both kLa and kL increase but LM decreases with the increasing QG/QL and the concentration of ionic liquid. Taking the enhancement of 1-butyl-3-methylimidazolium tetrafluoroborate ([bmim][BF4]) on the mass transfer into account, a dimensionless correlation for predicting kLa was proposed. This work is conducive to the design, optimization and the application of the microchannel reactor for CO2 capture and removal.
中文翻译:
微通道中1-丁基-3-甲基咪唑鎓四氟硼酸盐水溶液吸收CO2的传质特性
摘要 利用高速相机对微通道中离子液体水溶液吸收CO2的传质特性进行了实验研究。气液流速比(QG/QL)和离子液体浓度对液侧体积传质系数(kLa)、液侧传质系数(kL)和传质区长度(LM)的影响) 进行了系统研究。结果表明,随着QG/QL和离子液体浓度的增加,kLa和kL均增加,但LM减小。考虑到 1-丁基-3-甲基咪唑鎓四氟硼酸盐 ([bmim][BF4]) 对传质的增强,提出了预测 kLa 的无量纲相关性。这项工作有利于设计,
更新日期:2019-01-01
中文翻译:
微通道中1-丁基-3-甲基咪唑鎓四氟硼酸盐水溶液吸收CO2的传质特性
摘要 利用高速相机对微通道中离子液体水溶液吸收CO2的传质特性进行了实验研究。气液流速比(QG/QL)和离子液体浓度对液侧体积传质系数(kLa)、液侧传质系数(kL)和传质区长度(LM)的影响) 进行了系统研究。结果表明,随着QG/QL和离子液体浓度的增加,kLa和kL均增加,但LM减小。考虑到 1-丁基-3-甲基咪唑鎓四氟硼酸盐 ([bmim][BF4]) 对传质的增强,提出了预测 kLa 的无量纲相关性。这项工作有利于设计,