Applicability of the theory of micropore volume filling on zeolite NaX under and above adsorbate critical temperature

Acta Chimica Sinica ›› 1993, Vol. 51 ›› Issue (5): 451-456. Previous Articles Next Articles

Original Articles

垮越临界温度的分子筛吸附: 微孔体积填充理论的适用性

严爱珍;吴键;韩玉阁

南京大学化学系;华东工学院热处理工程系

发布日期:1993-05-15

Applicability of the theory of micropore volume filling on zeolite NaX under and above adsorbate critical temperature

YAN AIZHEN;WU JIAN;HAN YUGE

Published:1993-05-15

Abstract

Adsorption isotherms were determine for NH3, H2O, and EtOH on NaX zeolites and used to test the applicability of the theory of micropore vol. filling (by nonlinear regression anal.). This theory describes the adsorption systems with primarily electrostatic interactions as well as systems in which the adsorption temperature is greater than the crit. temperature of the adsorbate. Essentially the same limiting vols. for adsorption are calculated for different adsorbates on NaX; these values are consistent micropore vols. calculated from zeolite structural data. The limiting adsorption amts. and the variations of the differential heats of adsorption with temperature at different degrees of filling were calculated This type of data can be used to design solid adsorbent cooling systems.

Key words: ETHANOL, MOLECULAR SIEVE, AMMONIA, WATER VAPOUR, SURFACES ADSORPTION, SURFACES ADSORPTION, THEORY OF VOLUME FILLING OF MICROPORE

CLC Number:

O647

Cite this article

YAN AIZHEN;WU JIAN;HAN YUGE. Applicability of the theory of micropore volume filling on zeolite NaX under and above adsorbate critical temperature[J]. Acta Chimica Sinica, 1993, 51(5): 451-456.

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垮越临界温度的分子筛吸附: 微孔体积填充理论的适用性

Applicability of the theory of micropore volume filling on zeolite NaX under and above adsorbate critical temperature

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