| AB-8树脂吸附反式1,2环己二醇热力学和动力学(英文) |
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| 引用本文： | 谢艳新,侯丽丽,杨倩,蒋登高.AB-8树脂吸附反式1,2环己二醇热力学和动力学(英文)[J].中国化学工程学报,2012,20(2):277-283. |
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| 作者姓名： | 谢艳新 侯丽丽 杨倩 蒋登高 |
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| 作者单位： | 1. College of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450001, China;2. Department of Chemistry, Zhengzhou University, Zhengzhou 450001, China;3. Committee of Baoshan Circular Economy Industrial Agglomeration, Hebi 458030, China |
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| 摘 要： | AB-8 resin was used as an adsorbent for the removal of trans-1,2-cyclohexandiol(CHD) from aqueous solutions.Batch experiments were carried out to investigate the effect of contact time and temperature on sorption efficiency.The adsorptive thermodynamic properties and kinetics of CHD from water onto AB-8 resin were studied.The Langmuir and Freundlich isotherm models were employed to discuss the adsorption behavior.Thermodynamic parameters such as G,H and S were calculated.The results indicate that the equilibrium data are perfectly represented by Langmuir isotherm model.Thermodynamic study reveals that it is an exothermic process in nature and mainly physical adsorption enhanced by chemisorption with a decrease of entropy process.The kinetics of CHD adsorption is well described by the pseudo second-order model.The adsorbed CHD can be eluted from AB-8 resin by 5% ethanol aqueous solution with 100% elution percentage.
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| 关 键 词： | AB-8 resin trans-1 2-cyclohexandiol adsorption isotherm thermodynamics kinetics |
| 收稿时间： | 2011-11-03 |
Adsorptive Thermodynamic Properties and Kinetics of trans-1,2-Cyclohexandiol onto AB-8 Resin |
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| XIE Yanxin,HOU Lili,YANG Qian and JIANG Denggao.Adsorptive Thermodynamic Properties and Kinetics of trans-1,2-Cyclohexandiol onto AB-8 Resin[J].Chinese Journal of Chemical Engineering,2012,20(2):277-283. |
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| Authors: | XIE Yanxin HOU Lili YANG Qian and JIANG Denggao |
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| Affiliation: | 1. College of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450001, China;2. Department of Chemistry, Zhengzhou University, Zhengzhou 450001, China;3. Committee of Baoshan Circular Economy Industrial Agglomeration, Hebi 458030, China |
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| Abstract: | AB-8 resin was used as an adsorbent for the removal of trans-1,2-cyclohexandiol(CHD) from aqueous solutions.Batch experiments were carried out to investigate the effect of contact time and temperature on sorption efficiency.The adsorptive thermodynamic properties and kinetics of CHD from water onto AB-8 resin were studied.The Langmuir and Freundlich isotherm models were employed to discuss the adsorption behavior.Thermodynamic parameters such as G,H and S were calculated.The results indicate that the equilibrium data are perfectly represented by Langmuir isotherm model.Thermodynamic study reveals that it is an exothermic process in nature and mainly physical adsorption enhanced by chemisorption with a decrease of entropy process.The kinetics of CHD adsorption is well described by the pseudo second-order model.The adsorbed CHD can be eluted from AB-8 resin by 5% ethanol aqueous solution with 100% elution percentage. |
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| Keywords: | AB-8 resin trans-1 2-cyclohexandiol adsorption isotherm thermodynamics kinetics |
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