THERMODYNAMICS OF ADSORPTION (AS A FUNCTION OF TEMPERATURE AND PRESSURE) OF N2, CO2, AR, CH4 AND C2H4 ON CHARCOALS

被引：8

作者：

AFZAL, M

JAFFAR, M

AHMED, J

PERVEEN, N

机构：

[1] Faculty of Chemical Science, University of Islamabad, Islamabad

来源：

COLLOID AND POLYMER SCIENCE | 1978年 / 256卷 / 04期

关键词：

D O I：

10.1007/BF01544329

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A quantitative treatment pertaining to the evaluation of the Gibbs function for the adsorption study of Ar, N2, CO2, CH4 and C2H4 on wood-charcoal and charcoal is given. The specific surface areas were determined from the Langmuir adsorption equation; Gibbs function, π, was estimated from the areas under the m-ln P curves (from data from literature). Related thermodynamic functions are calculated in order to validate a correlation between the quantitatively deduced results with the known qualitative surface aspects in relation to a transition from mobile to a partly localized state for N2 arid CH4. © 1978 Dr. Dietrich Steinkopff Verlag.

引用

页码：356 / 362

页数：7

共 8 条

[1] THERMODYNAMICS OF ADSORPTION OF ORGANIC VAPOURS ON CARBON BLACK [J].

AFZAL, M .

KOLLOID-ZEITSCHRIFT AND ZEITSCHRIFT FUR POLYMERE, 1971, 248 (1-2) :1026-&

[2]

AFZAL M, 1975, KOLLOID Z Z POLYMERE

[3] The use of low temperature van der Waals adsorption isotherms in determining the surface area of iron synthetic ammonia catalysts [J].

Emmett, PH ;

Brunauer, S .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1937, 59 :1553-1564

[4]

EVERETT DH, 1957, P CHEM SOC LONDON, P38

[5]

GREGG SJ, 1948, T FAR SOC, V44, P580

[6]

GREGG SJ, 1965, SURFACE CHEMISTRY SO, P77

[7] Processes of adsorption and diffusion on solid surfaces. [J].

Lennard-Jones, JE .

TRANSACTIONS OF THE FARADAY SOCIETY, 1932, 28 :0333-0358

[8]

LORENZ L, 1910, Z PHYSIKAL CHEMIE ST, V74, P129

← 1 →