Equilibrium, Kinetic, and Thermodynamic Studies for Crude Structured-Lipid Deacidification Using Strong-Base Anion Exchange Resin
| Autor: | Hai-Ping Cui, Wei-Liang Wu, Cui-Li Huang, Li-Si Huo, Lu Yuan, Jian-Xian Zheng, Xiao-Ling Deng, Shun-Rong Long, Quan Zhou |
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| Rok vydání: | 2016 |
| Předmět: |
Langmuir
Ion exchange Chemistry General Chemical Engineering Diffusion Kinetics technology industry and agriculture Langmuir adsorption model Thermodynamics 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences symbols.namesake Adsorption symbols Organic chemistry lipids (amino acids peptides and proteins) Freundlich equation 0210 nano-technology Ion-exchange resin |
| Zdroj: | Journal of Chemical & Engineering Data. 61:1876-1885 |
| ISSN: | 1520-5134 0021-9568 |
| DOI: | 10.1021/acs.jced.6b00017 |
| Popis: | This study presents the adsorption behavior of strong-base anion exchange D202 resin for the elimination of free fatty acids (FFAs) from structure-lipid in nonpolar solvent. The kinetics and thermodynamic behaviors that govern FFAs removal by D202 resin were investigated, and appropriate equilibrium isotherm and kinetics models for the removal in batch experiments were identified. Both the Freundlich and Langmuir adsorption isotherm models were fitted to the experimental results with the best fit obtained by the latter. The adsorption capacity of D202 resin was 235.69 mg·g–1, as calculated from the nonlinear model of the Langmuir adsorption. The experimental data from the batch adsorption processes were analyzed in terms of the parameters from three adsorption kinetics models, namely, the liquid-film diffusion, the intraparticle, and the chemical-reaction models, to estimate the fit for the adsorption in these systems. The outcomes indicate that the adsorption kinetics between the free fatty acid ions and... |
| Databáze: | OpenAIRE |
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