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J Chromatogr A

Title:		"Adsorption characterisation of different volatile organic compounds over alumina, zeolites and activated carbon using inverse gas chromatography"
Author(s):		Diaz E; Ordonez S; Vega A; Coca J;
Address:		"Department of Chemical Engineering and Environmental Technology, University of Oviedo, Julian Claveria s/n, 33006 Oviedo, Spain"
Journal Title:		J Chromatogr A
Year:		2004
Volume:		1049
Issue:		1-Feb
Page Number:		139 - 146
DOI:		10.1016/j.chroma.2004.07.061
ISSN/ISBN:		0021-9673 (Print) 0021-9673 (Linking)
Abstract:		"Adsorption parameters (enthalpy of adsorption, free energy of adsorption) of several alkanes, cyclic hydrocarbons, aromatic hydrocarbons and chlorinated compounds on different adsorbents (alumina, zeolites 13X and 5 A, and activated carbon) were determined by inverse gas chromatography. Dispersive surface energy interaction and specific interaction parameters were determined for each solute-adsorbent system. It was found that mesoporous alumina presents lower enthalpy of adsorption than the microporous materials. Furthermore, zeolite 13X, which has wider pores than zeolite 5 A, exhibits a higher adsorption capacity"
Keywords:		"Adsorption Algorithms Aluminum Oxide Chromatography, Gas Diffusion Hydrogen-Ion Concentration Organic Chemicals/*analysis Thermodynamics Zeolites;"
Notes:		"MedlineDiaz, Eva Ordonez, Salvador Vega, Aurelio Coca, Jose eng Research Support, Non-U.S. Gov't Netherlands 2004/10/27 J Chromatogr A. 2004 Sep 17; 1049(1-2):139-46. doi: 10.1016/j.chroma.2004.07.061"