NEW TMA ADSORPTIVE EXPANSION TEST FOR MOLECULAR-SIEVES

被引：0

作者：

FLANK, WH

POLHAMUS, RL

机构：

[1] Union Carbide Corporation, Tarrytown Technical Center, Tarrytown, 10591, New York

来源：

JOURNAL OF THERMAL ANALYSIS | 1979年 / 17卷 / 01期

关键词：

D O I：

10.1007/BF02156607

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Until recently, it has been believed that during adsorption and desorption cycles of molecular sieve pellets, the pellets have been passive participants in the process. It has lately been shown by others using X-ray diffraction technique that the molecular sieve structure undergoes expansion and contraction as a result of moisture content changes. A new thermomechanical analyzer (TMA) technique has been developed that allows the dimensional change to be measured continuously as a function of time and, concurrently, moisture content, thus creating an unique method for measuring adsorption rates. The instrument modifications (DuPont 990 and 943), collection and evaluation of data, and the sensitivity of the adsorption rate due to various parameters are discussed in the paper. © 1979 Wiley Heyden Ltd., Chichester and Akadémiai Kiadó, Budapest.

引用

页码：133 / 140

页数：8