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| 用轴向浓度剖面拟合填料萃取塔轴向返混准数的方法 | |
| 引用本文： | 黄洪,杨卓如,陈焕钦,成晓玲,陈立辉.用轴向浓度剖面拟合填料萃取塔轴向返混准数的方法[J].华南理工大学学报(自然科学版),1999,27(7):68-72. |
| 作者姓名： | 黄洪 杨卓如 陈焕钦 成晓玲 陈立辉 |
| 作者单位： | 1. 华南理工大学化工学院,广州,510640 2. 广东工业大学访问者 3. 深圳益力矿泉水股份公司 |
| 摘 要： | 传统的萃取塔中的扩散模型均假设以轴向的体积传质系数为常数，本研究通过实验和分析文献的数据发现，作为填料萃取塔，轴向的体积传质系数是 ，而且塔底和塔顶相差较大，同时提出了体积传质胡轴向变化的扩散模型，并拟合出了模型的返混准数。 |
| 关 键 词： | 扩散模型 返混 塔填料 |
A METHOD OF FITTING PECLECT NUMBER IN A PACKED EXTRACTION COLUMN BY AXIAL CONCENTRATION SECTION |
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| Huang Hong,Cheng Xiaolin,Chen Lihui,Yang Zhuoru,Chen Huanqin.A METHOD OF FITTING PECLECT NUMBER IN A PACKED EXTRACTION COLUMN BY AXIAL CONCENTRATION SECTION[J].Journal of South China University of Technology(Natural Science Edition),1999,27(7):68-72. | |
| Authors: | Huang Hong Cheng Xiaolin Chen Lihui Yang Zhuoru Chen Huanqin |
| Abstract: | Volume mass transfer coefficients are often assumed as a constant in diffusion model used in extraction column. In fact, the coefficients in a packed column are variables and are greatly different at the top and the bottom of the column, which can be confirmed by our experimental data and other author's data.This paper presents a diffusion model and a backmixing coefficients by fitting, based on the assumption that volume mass transfer coefficients vary with the axial height of the column. |
| Keywords: | diffusion model backmixing packed column |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |