二氧化碳在基于癸酸的疏水性低共熔溶剂中的溶解度
Carbon Dioxide Solubilities in Decanoic Acid-Based Hydrophobic Deep Eutectic Solvents.
作者信息
Zubeir Lawien F, van Osch Dannie J G P, Rocha Marisa A A, Banat Fawzi, Kroon Maaike C
机构信息
Department of Chemical Engineering and Chemistry, Separation Technology Group, and Department of Chemical Engineering and Chemistry and Institute for Complex Molecular Systems, Laboratory of Physical Chemistry, Eindhoven University of Technology, P.O. Box 513, Eindhoven, The Netherlands.
Chemical Engineering Department, Khalifa University of Science and Technology, P.O. Box 2533, Abu Dhabi, United Arab Emirates.
出版信息
J Chem Eng Data. 2018 Apr 12;63(4):913-919. doi: 10.1021/acs.jced.7b00534. Epub 2018 Mar 19.
The solubility of CO in hydrophobic deep eutectic solvents (DESs) has been measured for the first time. Six different hydrophobic DESs are studied in the temperature range from 298 to 323 K and at CO pressures up to 2 MPa. The results are evaluated by comparing the solubility data with existing hydrophilic DESs and currently applied physical solvents and fluorinated ionic liquids. The DESs are prepared by mixing decanoic acid with a quaternary ammonium salt with different halide anions and alkyl chain lengths. The measured CO solubilities are similar to those found in renowned fluorinated ILs, while the heats of CO absorption are in the range of nonpolar solvents. The presented DESs show good potential to be used as CO capture agents.
首次测定了CO在疏水型低共熔溶剂（DESs）中的溶解度。研究了六种不同的疏水型DESs，温度范围为298至323 K，CO压力高达2 MPa。通过将溶解度数据与现有的亲水性DESs、目前应用的物理溶剂和氟化离子液体进行比较来评估结果。这些DESs是通过将癸酸与具有不同卤化物阴离子和烷基链长度的季铵盐混合制备的。测得的CO溶解度与著名的氟化离子液体中的溶解度相似，而CO吸收热在非极性溶剂范围内。所展示的DESs显示出作为CO捕集剂的良好潜力。
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