| 三氯蔗糖在大孔吸附树脂SP825上的吸附热动力学 |
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| 引用本文： | 章程,吴菁岚,林晓清,顾媛,程利花,张旭,应汉杰.三氯蔗糖在大孔吸附树脂SP825上的吸附热动力学[J].生物加工过程,2011,9(4):41-44. |
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| 作者姓名： | 章程 吴菁岚 林晓清 顾媛 程利花 张旭 应汉杰 |
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| 作者单位： | 南京工业大学生物与制药工程学院材料化学工程国家重点实验室,南京,210009 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)资助项目 |
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| 摘 要： | 采用静态吸附法,系统研究了三氯蔗糖在大孔吸附树脂SP825上的吸附热力学和动力学特性,为后续三氯蔗糖提取工艺的设计提供基础数据。实验结果表明:在283.15、293.15和303.15 K温度下,树脂SP825对三氯蔗糖的最大吸附量(每克湿树脂)分别为0.146、0.151和0.156 g。树脂SP825对三氯蔗糖的吸附平衡数据符合Lang-muir吸附等温方程,吸附过程为自发的物理吸附过程;并运用准二阶动力学模型描述了动力学过程,确定在实验条件范围内,吸附受颗粒内部传质速率的影响。
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| 关 键 词： | 吸附 动力学 三氯蔗糖 热力学 |
Adsorption thermodynamics and kinetics of sucralose onto the SP825 resin |
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| ZHANG Cheng,WU Jinglan,LIN Xiaoqing,GU Yuan,CHENG Lihua,ZHANG Xu,YING Hanjie.Adsorption thermodynamics and kinetics of sucralose onto the SP825 resin[J].Chinese Journal of Bioprocess Engineering,2011,9(4):41-44. |
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| Authors: | ZHANG Cheng WU Jinglan LIN Xiaoqing GU Yuan CHENG Lihua ZHANG Xu YING Hanjie |
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| Institution: | ZHANG Cheng,WU Jinglan,LIN Xiaoqing,GU Yuan,CHENG Lihua,ZHANG Xu,YING Hanjie(State Key Laboratory of Materials-Oriented Chemical Engineering,College of Biotechnology and Pharmaceutical Engineering,Nanjing University of Technology,Nanjing 210009,China) |
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| Abstract: | The adsorption thermodynamics and kinetics of sucralose on macroporous resin SP825 were systematically studied by a static method.It provided the fundamental data used in the following recovery process design.The results showed that the saturated capacities of resin SP825 were 0.146,0.151 and 0.156 g per gram resin at the temperatures of 283.15,293.15 and 303.15 K,respectively.Langmuir isotherm model fitted the experimental data well.The adsorption process belonged to the physical adsorption and underwent s... |
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| Keywords: | adsorption kinetics sucralose thermodynamics |
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