Thermodynamic property fields of an adsorbate-adsorbent system

被引:27
作者
Chua, HT [1 ]
Ng, KC
Chakraborty, N
Oo, NM
机构
[1] Natl Univ Singapore, Fac Engn, Bachelor Technol Program, Singapore 117576, Singapore
[2] Natl Univ Singapore, Dept Mech Engn, Singapore 119260, Singapore
关键词
D O I
10.1021/la0267140
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We have developed the complete thermodynamic property fields for a single-component adsorbent + adsorbate system. These equations enable us to compute the actual specific heat capacity, the partial enthalpy, and the entropy, which are essential for the analyses of single-component adsorption processes. Conventionally, the specific heat capacity of the adsorbate is assumed to correspond to its liquid phase specific heat capacity and more recently to that of its gas phase. We have shown that the actual specific heat capacity of the adsorbate could differ significantly from what has been conventionally assumed. A simple but improved expression for the adsorbate specific heat capacity is also proposed.
引用
收藏
页码:2254 / 2259
页数:6
相关论文
共 22 条
[1]   Adsorption of 1,1,1,2-tetrafluoroethane on activated charcoal [J].
Akkimaradi, BS ;
Prasad, M ;
Dutta, P ;
Srinivasan, K .
JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2001, 46 (02) :417-422
[2]   Application of gradients in the simulated moving bed process [J].
Antos, D ;
Seidel-Morgenstern, A .
CHEMICAL ENGINEERING SCIENCE, 2001, 56 (23) :6667-6682
[3]   Determination of the adsorption isotherms of hydrogen on activated carbons above the Critical Temperature of the adsorbate over wide temperature and pressure ranges [J].
Bénard, P ;
Chahine, R .
LANGMUIR, 2001, 17 (06) :1950-1955
[4]  
CHAN CK, 1984, CRYOGENICS, P451
[5]   Adsorption characteristics of silica gel plus water systems [J].
Chua, HT ;
Ng, KC ;
Chakraborty, A ;
Oo, NM ;
Othman, MA .
JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2002, 47 (05) :1177-1181
[6]   General thermodynamic framework for understanding temperature-entropy diagram of batchwise operating thermodynamic cooling cycles [J].
Chua, HT ;
Ng, KC ;
Malek, A ;
Oo, NM .
JOURNAL OF APPLIED PHYSICS, 2001, 89 (09) :5151-5158
[7]   Modeling the performance of two-bed, silica gel-water adsorption chillers [J].
Chua, HT ;
Ng, KC ;
Malek, A ;
Kashiwagi, T ;
Akisawa, A ;
Saha, BB .
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID, 1999, 22 (03) :194-204
[8]   INVESTIGATION AND IMPROVEMENT OF CRYOGENIC ADSORPTION PURIFICATION OF ARGON FROM OXYGEN [J].
FEDOROV, AN .
GAS SEPARATION & PURIFICATION, 1995, 9 (02) :137-145
[9]  
Feuerecker G., 1994, P INT ABS HEAT PUMP, V31, P493
[10]   Volumetric hydrogen storage in single-walled carbon nanotubes [J].
Liu, C ;
Yang, QH ;
Tong, Y ;
Cong, HT ;
Cheng, HM .
APPLIED PHYSICS LETTERS, 2002, 80 (13) :2389-2391