Vapor adsorption on microporous adsorbents

被引：43

作者：

Aranovich, GL ^{[1
]}

Donohue, MD ^{[1
]}

机构：

[1] Johns Hopkins Univ, Dept Chem Engn, Baltimore, MD 21218 USA

来源：

CARBON | 2000年 / 38卷 / 05期

关键词：

activated carbon; adsorption; modeling; phase equilibria; microporosity;

D O I：

10.1016/S0008-6223(99)00157-8

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 [物理化学]; 081704 [应用化学];

摘要：

A new equation describing the adsorption of vapors on microporous adsorbents is presented. This equation is based on the Ono-Kondo model for adsorption in slit-like pores. Results are compared with experimental data For nitrogen on activated carbon over the range of pressures from 0.3 Pa to 0.133 MPa. It is shown that this new equation has several advantages over the widely used Dubinin-Radushkevich (DR) isotherm. In particular, this new equation gives the correct limit of Henry's law at low concentrations and is more general than the DR equation because it is applicable to gases at supercritical conditions. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：701 / 708

页数：8

共 38 条

[1]

ADAMSON AW, 1967, PHYSICAL CHEM SURFAC

[2]

A NEW SERIES OF EQUATIONS FOR THE ADSORPTION-ISOTHERM CURVES ON MICROPOROUS ADSORBENTS [J].

AHARONI, C ;

ROMM, F .

LANGMUIR, 1995, 11 (05) :1744-1752

[3]

Analysis of adsorption isotherms: Lattice theory predictions, classification of isotherms for gas-solid equilibria, and similarities in gas and liquid adsorption behavior [J].

Aranovich, G ;

Donohue, M .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1998, 200 (02) :273-290

[4]

ADSORPTION-ISOTHERMS FOR MICROPOROUS ADSORBENTS [J].

ARANOVICH, GL ;

DONOHUE, MD .

CARBON, 1995, 33 (10) :1369-1375

[5]

MULTILAYER THEORY FOR ADSORPTION FROM SOLUTION - MIXTURES OF MONOMERS+DIMERS [J].

ASH, SG ;

EVERETT, DH ;

FINDENEG.GH .

TRANSACTIONS OF THE FARADAY SOCIETY, 1968, 64 (550P) :2645-&

[6]

Carbon surface: Area, porosity, chemistry, and energy [J].

Bradley, RH ;

Sutherland, I ;

Sheng, E .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1996, 179 (02) :561-569

[7]

Breck D.W, 1974, ZEOLITE MOL SIEVES

[8]

CO2 as an adsorptive to characterize carbon molecular sieves and activated carbons [J].

Cazorla-Amoros, D ;

Alcaniz-Monge, J ;

de la Casa-Lillo, MA ;

Linares-Solano, A .

LANGMUIR, 1998, 14 (16) :4589-4596

[9]

THEORETICAL BASIS FOR THE POTENTIAL-THEORY ADSORPTION-ISOTHERMS - THE DUBININ-RADUSHKEVICH AND DUBININ-ASTAKHOV EQUATIONS [J].

CHEN, SG ;

YANG, RT .

LANGMUIR, 1994, 10 (11) :4244-4249

[10]

de Boer J.H., 1953, DYNAMICAL CHARACTER

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