| 气相色谱法测定分子筛扩散系数 |
| |
| 引用本文： | 沈吕宁,万沁春,王米捷,顾晓明,张永全,郑绳安. 气相色谱法测定分子筛扩散系数[J]. 工业催化, 1997, 0(3) |
| |
| 作者姓名： | 沈吕宁 万沁春 王米捷 顾晓明 张永全 郑绳安 |
| |
| 作者单位： | 上海锦中分子筛公司!上海，201203，上海锦中分子筛公司!上海，201203，上海锦中分子筛公司!上海，201203，上海锦中分子筛公司!上海，201203，上海锦中分子筛公司!上海，201203，复旦大学化学系 |
| |
| 摘 要： | 气相色谱法测定分子筛扩散系数是根据色谱VanDeemeter过程，将被测分子筛装人色谱柱中，以测得的色谱往理论板高度（H）和相应的线速度（u）作图，求得在高线速度部分的斜率（C），计算分子筛的扩散系数（Dp）。本文测定了8种5A型和4种13X型分子筛对氧和氛的扩散系数，证明用不同制各方法得到的产品其扩散系数有很大的差异，故其应用的工艺条件亦不应雷同。
|
| 关 键 词： | 扩散系数 分子筛 气相色谱法 动力学参数 |
Determination of Molecular Sieve Diffusivity by Gas Chromatography |
| |
| Shen Luning,Wan Qinchun,Wang MijieGu Xiaoming,Zhang Yongquan,Zheng Shenan.. Determination of Molecular Sieve Diffusivity by Gas Chromatography[J]. Industrial Catalysis, 1997, 0(3) |
| |
| Authors: | Shen Luning Wan Qinchun Wang MijieGu Xiaoming Zhang Yongquan Zheng Shenan. |
| |
| Abstract: | This method for determination of the diffusivity of molecular sieves is based on gas chromatographyvan Deemeter equation. In this method,mo1ecular sieves sample is filled into the GC column and the ab-sorbate injected to it,and then theoretical plate height (H) of the GC column is calculated from the GCpeak area. According to H vs linear velocity (C) curve the slope is obtained and the diffusivity (Dp)determined- This paper is involved in various diffusivities of oxygen or nitrogen in 8 kinds of 5A and 4kinds of l3X molecular sieves. The results show that the diffusivites of different samples are different.The method may be app1ied to 0ther absorbates and catalysts,and also to the measurement under differ-ent temperatures. |
| |
| Keywords: | diffusivity molecu1ar sieve gas chromatography kinetic parameter |
| 本文献已被 CNKI 等数据库收录！ |
