Experimental Investigation on the Solubility and Initial Rate of Absorption of CO2 in Aqueous Mixtures of Methyldiethanolamine with the Ionic Liquid 1-Butyl-3-methylimidazolium Tetrafluorob
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- 作者：Afshin Ahmady ; Mohd Ali Hashim ; Mohamed Kheireddine Aroua
- 刊名：Journal of Chemical & Engineering Data
- 出版年：2010
- 出版时间：December 9, 2010
- 年：2010
- 卷：55
- 期：12
- 页码：5733-5738
- 全文大小：167K
- 年卷期：v.55,no.12(December 9, 2010)
- ISSN：1520-5134
文摘
In this paper we present the results of the initial absorption rate and solubility of CO2 in aqueous 4 M methyldiethanolamine (MDEA) mixed with various concentrations of 1-butyl-3-methylimidazolium tetrafluoroborate ([bmim][BF4]) at (303, 313, 323, and 333) K. All experiments were carried out at low partial pressures of CO2, below 110 kPa. The results of this research suggested that the presence of a low concentration of [bmim][BF4] in aqueous 4 mol·L−1 MDEA has no significant effect on the mixture loading capacity, but increased the initial absorption rate. The amine CO2 loading capacity showed a significant decrease in the presence of high concentrations of ionic liquid in the mixture.