Phase equilibrium of (CO2 + 1-aminopropyl-3-methylimidazolium bromide + water) electrolyte system and effects of aqueous medium on CO2 solubility: Experiment and modeling
作者： Ying Chen , Kaihua Guo , Yin Bi , Lan Zhou
DOI: 10.1016/J.JCT.2016.12.024
关键词:
摘要: Abstract New experimental data for solubility of carbon dioxide (CO 2 ) in the aqueous solution 1-aminopropyl-3-methylimidazolium bromide ([APMIm]Br) with four different water mass fractions (0.559, 0.645, 0.765 and 0.858) at T = (278.15–348.15) K an interval = 10 K p = (0.1237–6.9143) MPa were presented. The electrolyte nonrandom two-liquid (eNRTL) model was modified to be applicable ionic liquid (IL) system, by introducing idle factor β illustrate association effect IL molecules. A Henry’s constant CO defined a correlative coefficient R s ∗ . vapor-liquid phase equilibrium [APMIm]Br-H O-CO ternary system successfully calculated eNRTL model. chemical physical mechanisms ionized formation molecular dissolved identified. effects medium on both dissolution [APMIm]Br studied, considerable enhancement increase content observed.
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