Evaluation of adsorption properties of zeolites using inverse gas chromatography:: comparison with immersion calorimetry

被引：21
|
作者：
Díaz, E [1 ]
Ordóñez, S [1 ]
Vega, A [1 ]
Coca, J [1 ]
机构：
[1] Univ Oviedo, Dept Chem Engn & Environm Technol, E-33006 Oviedo, Spain
来源：
THERMOCHIMICA ACTA | 2005年 / 434卷 / 1-2期
关键词：
inverse gas chromatography; immersion calorimetry; Zeolite; 13X; 5A;
D O I：
10.1016/j.tca.2005.01.014
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Adsorption properties (enthalpy of adsorption, free energy of adsorption as well as the dispersive and specific components of free energy of adsorption) of several hydrocarbons on zeolites 13X and 5A have been evaluated by inverse gas chromatography (IGC). A parallelism between the effects of the molecular diameter on the enthalpy of immersion and the parameter of specific interaction was found for series of hydrocarbon with the same number of carbon atoms. For polar compounds, dipolar moment presents a key role on the relationship between calorimetric and chromatographic data. (C) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：9 / 14
页数：6
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