Simplified local density model for adsorption of pure gases on activated carbon using Sutherland and Kihara potentials

被引:23
作者
Hasanzadeh, Meysam [1 ]
Alavi, Farzad [1 ]
Feyzi, Farzaneh [1 ]
Dehghani, Mohammad Reza [1 ]
机构
[1] Iran Univ Sci & Technol, Thermodynam Res Lab, Sch Chem Engn, Tehran 1684613114, Iran
关键词
Simplified local density model; Adsorption; Activated carbon; Sutherland potential; Kihara potential; EQUATION; MIXTURES; DIOXIDE; PRESSURES; METHANE; BINARY;
D O I
10.1016/j.micromeso.2010.08.011
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
In this study, the ability of the simplified local density (SLD) model to represent adsorption of pure gases on activated carbon as predicted by Sutherland and Kihara potential functions is investigated. Peng-Robinson (PR) equation of state (EoS) is used in the SLD model to provide the fluid properties. In addition to the Lennard-Jones potential, which is usually used in literature, Sutherland and Kihara potentials are also used to represent interactions between gas and solid molecules. The parameters of the models were adjusted to the data from the literature. The results for the adsorption of methane, ethane, carbon dioxide and nitrogen on two types of activated carbon are compared. Accurate predictions are observed by the three potential function models. (C) 2010 Elsevier Inc. All rights reserved.
引用
收藏
页码:1 / 9
页数:9
相关论文
共 21 条
[1]   Adsorption and desorption of carbon dioxide onto and from activated carbon at high pressures [J].
Chen, JH ;
Wong, DSH ;
Tan, CS ;
Subramanian, R ;
Lira, CT ;
Orth, M .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1997, 36 (07) :2808-2815
[2]   Structure and thermodynamic properties of Sutherland fluids from computer simulation and the Tang-Lu integral equation theory [J].
Diez, A. ;
Largo, J. ;
Solana, J. R. .
FLUID PHASE EQUILIBRIA, 2007, 253 (01) :67-73
[3]   A SIMPLE EQUATION OF STATE FOR NONSPHERICAL AND ASSOCIATING MOLECULES [J].
ELLIOTT, JR ;
SURESH, SJ ;
DONOHUE, MD .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1990, 29 (07) :1476-1485
[4]   Modeling high-pressure adsorption of gas mixtures on activated carbon and coal using a simplified local-density model [J].
Fitzgerald, James E. ;
Robinson, Robert L., Jr. ;
Gasem, Khaled A. M. .
LANGMUIR, 2006, 22 (23) :9610-9618
[5]   Modeling the adsorption of pure gases on coals with the SLD model [J].
Fitzgerald, JE ;
Sudibandriyo, M ;
Pan, Z ;
Robinson, RL ;
Gasem, KAM .
CARBON, 2003, 41 (12) :2203-2216
[6]  
Ginzburg Y., 2006, 23 WORLD GAS C AMST
[7]   Characterization of activated carbons using liquid phase adsorption [J].
Ismadji, S ;
Bhatia, SK .
CARBON, 2001, 39 (08) :1237-1250
[8]  
Lee L.L.:., 1988, Molecular Thermodynamics of Nonideal Fluids
[9]  
MI J, 2008, J CHEM PHYS, V128
[10]   Isosteric heats of adsorption on carbon predicted by density functional theory [J].
Pan, HH ;
Ritter, JA ;
Balbuena, PB .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1998, 37 (03) :1159-1166