Adsorption Dynamics of Organic Compounds and Water Vapor in Activated Carbon Beds

Autor:	W. Scot Appel, John E. Finn, M. Douglas LeVan, Nan Qi
Rok vydání:	2006
Předmět:	Mass transfer coefficient Chromatography Chemistry General Chemical Engineering General Chemistry Breakthrough curve Industrial and Manufacturing Engineering Adsorption Chemical engineering Fully automated medicine Water loading Saturation (chemistry) Water vapor Activated carbon medicine.drug
Zdroj:	Industrial & Engineering Chemistry Research. 45:2303-2314
ISSN:	1520-5045 0888-5885
Popis:	Breakthrough behavior is investigated for an activated carbon bed fed with constant concentrations of organic vapors and a stepped concentration of water vapor. The organics are present as single components and binary mixtures, with both hydrophobic and hydrophilic organics considered. Experiments are performed using a fully automated fixed-bed apparatus, which enables breakthrough curve studies for gas mixtures over a wide range of concentrations, from much less than 1 ppm up to saturation. The adsorbed-phase mass transfer coefficient of water is found to be a strong function of water loading. The system response is complex, with behaviors for hydrophilic and hydrophobic compounds being quite different. A model incorporating an accurate description of the highly nonideal adsorption equilibria is developed to simulate all of the fixed-bed experiments and gives good agreement in time, trend, extent, and shape of the breakthrough curves.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5059d35469e3345d33187b02d7ecf16b https://doi.org/10.1021/ie050758x Zobrazit plný text záznamu