Mass transfer and kinetics of CO2 absorption into aqueous monoethanolamine/1-hydroxyethy-3-methyl imidazolium glycinate solution
Mass transfer and kinetics of CO2 absorption into aqueous monoethanolamine/1-hydroxyethy-3-methyl imidazolium glycinate solution
复制标题
单乙醇胺/1-羟乙基-3-甲基咪唑鎓甘氨酸水溶液中 CO2 吸收的传质和动力学
DOI:
10.1016/j.cej.2015.06.004
复制
发表时间:
2015-11
影响因子:
15.1
通讯作者:
Li Sujing
中科院分区:
文献类型:
--
作者:
Lv Bihong;Sun Cheng;Liu Nan;Li Wei;Li Sujing
The aqueous blend of monoethanolamine (MEA) and 1-hydroxyethy-3-methyl imidazolium glycinate ([C 2 OHmim][Gly]) was considered as a promising CO 2-capturing solvent because of the advantages of fast absorption rate, high absorption capacity, great thermal stability and good resistance to O 2. In the present work, kinetics of the reaction of CO 2 and MEA/[C 2 OHmim][Gly] in aqueous solutions had been investigated using a double stirred-cell absorber with a defined gas/liquid interface. The zwitterion mechanism was used as the kinetic model to describe the absorption of CO 2 in the mixed solution. The kinetic and mass transfer parameters, eg, the reaction rate constant (k 2, mix), the overall reaction rate constant (k ov) and the enhancement factor (E), were evaluated at different absorbent concentrations and temperature. At 303.15 K, the values of k 2 into MEA/[C 2 OHmim][Gly] and [C 2 OHmim][Gly] solution were respectively calculated as 6506.4 and 8980.6 m 3 kmol− 1 s− 1. The relationship between k 2 and the reaction temperature was determined by the Arrhenius Equation, and was presented as: k 2, mix= 7.12× 10 6 exp-2126.3 T.
登录
查看更多内容
影响因子:
3.9
作者:
Guo Bing Song;Jing Guo Hua;Zhou Zuo Ming
通讯作者:
Zhou Zuo Ming
影响因子:
3.9
作者:
Y. Moullec;M. Kanniche
通讯作者:
Y. Moullec;M. Kanniche
影响因子:
5.3
作者:
Bi-hong Lu;Xiang-qian Wang;Yinfeng Xia;Nan Liu;Sujing Li;W. Li
通讯作者:
Bi-hong Lu;Xiang-qian Wang;Yinfeng Xia;Nan Liu;Sujing Li;W. Li
影响因子:
3.9
作者:
Alexander Voice;G. Rochelle
通讯作者:
Alexander Voice;G. Rochelle
影响因子:
2.1
作者:
Prakash D. Vaidya;E. Kenig
通讯作者:
Prakash D. Vaidya;E. Kenig