Ternary diffusion coefficients of diethylene glycol and lithium chloride in aqueous solutions containing diethylene glycol and lithium chloride |
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Authors: | Shao-Wei Peng Allan N. Soriano Meng-Hui Li |
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Affiliation: | 1. R&D Center for Membrane Technology and Department of Chemical Engineering, Chung Yuan Christian University, Chung Li 32023, Taiwan, ROC;2. School of Chemical Engineering and Chemistry, Mapúa Institute of Technology, Manila 1002, Philippines |
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Abstract: | In this work, ternary diffusion coefficients of diethylene glycol and lithium chloride in aqueous solutions containing diethylene glycol and lithium chloride were reported for temperatures (303.2, 308.2, and 313.2 K) using the Taylor dispersion method. The investigated ternaries contained total glycol–salt concentrations of 10, 15, and 20 wt%. The main diffusion coefficients (D11 and D22) and the cross-diffusion coefficients (D12 and D21) were discussed as function of temperature and concentration. A modified equation originally proposed by Batchelor [1] for mixture of hard spheres in a continuum solvent was used to correlate the present diffusion coefficient data and the results are satisfactory. |
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Keywords: | Aqueous glycol&ndash salt solution Diethylene glycol Lithium chloride Taylor dispersion method Ternary diffusion coefficient |
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