Experimental Research on NO2 Viscosity and Absorption for (1-Ethyl-3-methylimidazolium Trifluoroacetate + Triethanolamine) Binary Mixtures |
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| Authors: | Baoyou Liu Xinyu Wang Jie Tian Peiwen Zhang Huilong Yang Nanxi Jin |
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| Affiliation: | 1.Pollution Prevention Biotechnology Laboratory of Hebei Province, College of Environment Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China; (X.W.); (J.T.); (N.J.);2.General Affairs Office of Hebei University of Science and Technology, Hebei University of Science and Technology, Shijiazhuang 050018, China; |
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| Abstract: | The viscosity (9.34–405.92 mPa·s) and absorption capacity (0.4394–1.0562 g·g−1) of (1-ethyl-3-methylidazolium trifluoroacetate + triethanolamine) binary blends atmospheric pressure in the temperature range of 303.15–343.15 K and at different mole fractions of [EMIM] [TFA] have been carried out. The molar fraction of [EMIM] [TFA] dependence of the viscosity and absorption capacity was demonstrated. The addition of a small amount of [EMIM] [TFA] into TEA led to rapidly decreased rates of binary blends’ viscosity and absorption capacity. However, the viscosity and absorption of binary blends did not decrease significantly when [EMIM] [TFA] was increased to a specific value. Compared with the molar fraction of the solution, the temperature had no obvious effect on viscosity and absorption capacity. By modeling and optimizing the ratio of viscosity and absorption capacity of ([EMIM] [TFA] + TEA), it is proven that when the mole fraction of [EMIM] [TFA] is 0.58, ([EMIM] [TFA] + TEA) has the best viscosity and absorption capacity at the same time. In addition, at 303.15 K, ([EMIM] [TFA] + TEA) was absorbed and desorbed six times, the absorption slightly decreased, and the desorption increased. |
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| Keywords: | ionic liquid 1-ethyl-3-methylimidazolium trifluoroacetate triethanolamine viscosity NO2 absorption |
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