Density, Viscosity, and N2O Solubility of Aqueous Solutions of MEA, BmimBF4, and Their Mixtures from 293.15 to 333.15 K,Journal of Chemical & Engineering Data

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Density, Viscosity, and N2O Solubility of Aqueous Solutions of MEA, BmimBF4, and Their Mixtures from 293.15 to 333.15 K
Journal of Chemical & Engineering Data ( IF 2.0 ) Pub Date : 2018-06-15 , DOI: 10.1021/acs.jced.8b00070
Lingjun Xu ₁ , Shujuan Wang ₁

Affiliation

Densities and viscosities of aqueous solutions of ethanolamine (MEA), 1-butyl-3-methylimidazolium tetrafluoroborate (BmimBF₄), and their mixtures were measured. The experiments covered the following mole fraction ranges: 1.00–9.38 mol % of BmimBF₄ in its aqueous solutions, 3.94–21.97 mol % of MEA in its aqueous solutions, and 1.32–17.01 mol % of MEA + 5.10–34.02 mol % of BmimBF₄ in the mixtures. The results are compared with available data in the literature and correlated using a semiempirical formula as functions of the temperature and concentration of MEA and BmimBF₄. At the concentration suitable for the CO₂ capture, the viscosity of the hybrid absorbent did not significantly increase by the addition of BmimBF₄. Moreover, the addition of BmimBF₄ reduced the Henry’s law constant, which is significant for reaction kinetics.

中文翻译：

293.15至333.15 K的MEA，BmimBF ₄及其混合物的水溶液的密度，粘度和N ₂ O溶解度

测量乙醇胺（MEA），1-丁基-3-甲基咪唑鎓四氟硼酸盐（BmimBF ₄）及其混合物的水溶液的密度和粘度。实验涵盖以下摩尔分数范围：水溶液中BmimBF _4的浓度为1.00–9.38 mol％，水溶液中MEA的浓度为3.94–21.97 mol％，MEA的浓度为1.32–17.01 mol％+ BmimBF的浓度为5.10–34.02 mol％在混合物中为₄。将结果与文献中的可用数据进行比较，并使用半经验公式将其与MEA和BmimBF ₄的温度和浓度相关联。在适合CO ₂的浓度下通过捕获BmimBF ₄，杂化吸收剂的粘度不会显着增加。此外，BmimBF _4的添加降低了亨利定律常数，这对于反应动力学很重要。

更新日期：2018-06-15

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