The solubility of CO₂ in three cellulose‐dissolving ionic liquids (1‐ethyl‐3‐methylimidazolium diethylphosphate, [Emim][DEP], 1‐allyl‐3‐methylimidazolium chloride, [Amim][Cl], and 1‐butyl‐3‐methylimidazolium chloride, [Bmim][Cl]) at temperatures within 298 and 356 K and pressures up to 6.5 MPa was determined using a Van Ness‐type apparatus (static isochoric). It was demonstrated that this device can work in isothermal and isoplethal modes, being the latter faster and more precise. Moreover, it was possible to determine CO₂ solubilities in metastable liquid [Bmim][Cl]. Experimental data were modeled using the Extended Henry's law correlation and the group contribution equation of state. New parameters for the binary interaction of CO₂ with ionic liquid groups were calculated.

中文翻译：

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CO2在三种可溶解纤维素的离子液体中的溶解度

CO ₂在三种溶解纤维素的离子液体（1-乙基-3-甲基咪唑二乙基磷酸酯，[Emim] [DEP]，1-烯丙基-3-甲基咪唑鎓氯化物，[Amim] [Cl]和1-丁基-使用Van Ness型仪器（静态等静压）在298和356 K的温度范围内和压力高达6.5 MPa的条件下，测定了3-甲基咪唑氯化物[Bmim] [Cl]）。证明了该装置可以在等温和等渗模式下工作，后者等速且精确。此外，有可能确定亚稳液体[Bmim] [Cl]中的CO ₂溶解度。实验数据是使用扩展的亨利定律相关性和状态的群贡献方程建模的。CO ₂二元相互作用的新参数 计算离子液体基团。