期刊
ENERGY & FUELS
卷 27, 期 7, 页码 3928-3935出版社
AMER CHEMICAL SOC
DOI: 10.1021/ef401063r
关键词
-
资金
- Spanish National Research Council (CSIC) through JAE-Doc program
Ionic liquids (ILs) present a new alternative for postcombustion CO2 capture because their properties can be tuned by means of different cation-anion combinations in order to obtain the most suitable properties for a specific task. This work is a novel study that investigates the absorption kinetics and evolution of the chemical transformations produced by CO2 absorption in as at different temperatures. A large range of pure ILs was tested with a screening process based on the pK(a) anion for efficient and reversible CO2 capture. CO2 uptake by selected ILs was determined for a wide range of pressures between atmospheric pressure and 2000 kPa at room temperature. Results show that CO2 absorption capacities of [bmim][Ac] and [bmim] [Phen] at 100 kPa are close to those obtained at higher pressures, suggesting the existence of two solvation regimes. This was confirmed by IR analysis. The kinetics were significantly affected by the temperature and were shown to increase sharply with it. The optimum temperature for CO2 capture in [bmim][Ac] and [bmim][Phen] was found to be 323.15 and 348.15 K, respectively.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据