| XDA-1树脂对茶多酚的吸附及吸附柱放大研究 |
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| 引用本文： | 张效林,曹利,苟小峰,亢茂德. XDA-1树脂对茶多酚的吸附及吸附柱放大研究[J]. 离子交换与吸附, 2003, 19(3): 235-240 |
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| 作者姓名： | 张效林 曹利 苟小峰 亢茂德 |
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| 作者单位： | 1. 西北大学化工系,西安,710069
2. 环境与市政工程学院,西安建筑科技大学,西安,710055 |
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| 基金项目： | 陕西省科技攻关项目(2000K12-G1) |
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| 摘 要： | 研究了XDA-1树脂对茶多酚的吸附及吸附柱放大规律。建立了XDA-1树脂柱吸附茶多酚过程的传质模型，并根据该模型分别计算了不同操作条件下相应的物质总传质系数及传质区长度．结果表明，在实验操作的流速范围内，过程属于外扩散控制．按照操作线速度相等的原则进行固定床设备的放大，传质区长度的放大误差在10％左右，实验所得传质区长度的结果可作为吸附柱设计的基础．
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| 关 键 词： | XDA－1树脂 茶多酚 吸附柱 放大规律 传质模型 传质系数 分离 生产 |
| 文章编号： | 1001-5493(2003)03-0235-06 |
| 修稿时间： | 2002-11-02 |
STUDY ON THE ADSORPTION OF TEA POLYPHENOLS ON XDA-1 RESINS AND THE MAGNIFICATION OF ADSORBER |
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| Abstract: | The adsorption of tea polyphenols (TP) using XDA-1 resin and the magnification of adsorber were researched. Adsorption model for TP mass transfer with XDA-1 resins was set up and the height of mass transfer zone and total mass transfer coefficient in different operation conditions were calculated. Results showed that the process was in film diffusion control in the experimental velocity range. Based on the equality rule of operation velocity, the magnification error of the height of mass transfer zone was about 10%. Thus, the value of the height of mass transfer zone in miniature can be the base of the adsorber design. |
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| Keywords: | Transfer model Total mass transfer coefficient Height of mass transfer zone Magnification. |
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