溶解度
碳氢化合物
离子液体
化学
COSMO-RS公司
苯
甲苯
碳氢化合物混合物
环己烷
辛烷值
己烷
庚烷
有机化学
化学工程
热力学
催化作用
工程类
物理
作者
Zhen Song,Qian Zeng,Jinwei Zhang,Hongye Cheng,Lifang Chen,Zhiwen Qi
标识
DOI:10.1016/j.molliq.2016.10.026
摘要
When applying ionic liquids (ILs) in extractive and oxidative desulfurization of fuel oils, the potential solubility of IL in fuel phase is an important concern whereas research particularly on this issue is still scarce. In this work, COSMO-RS was first employed to predict the solubilities of 220 imidazolium-based ILs (11 cations and 20 anions) in 7 model fuel hydrocarbons (namely, n-hexane, n-heptane, n-octane, i-octane, cyclohexane, benzene and toluene), which cover different characters of ILs and hydrocarbons. To understand the effect of IL and hydrocarbon on the IL-in-hydrocarbon solubility, different types of molecular interactions between IL and hydrocarbon were further analyzed from COSMO-RS point of view. Finally, the solubilities of 5 representative ILs in the studied hydrocarbons were experimentally determined by nitrogen analyzer, demonstrating the good qualitative and acceptable quantitative ability of COSMO-RS for predicting IL-in-hydrocarbon solubilities.
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