Observation of wall effects in activated carbon filters by x-ray µCT

Léonard, Angélique; Wullens, Hilda; Blacher, Silvia; Marchot, Pierre; Toye, Dominique; Crine, Michel; Lodewyckx, Peter

Paper published in a book (Scientific congresses and symposiums)

Léonard, Angélique; Wullens, Hilda; Blacher, Silvia et al.

2007 • In Mc Cann, H.; Johansen, G. A. (Eds.) Proceedings of the 5th World Congress on Industrial Process Tomography, Bergen, Norway, September 6-9, 2007

Peer reviewed

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Keywords :

Activated carbon; Adsorption; Wall effect; X-ray microtomography; Carbon; Tomography; Dynamic adsorption; Activated carbon beds; Radial concentration; X ray microtomography; Wall effects

Abstract :

X-ray microtomography has been recently used to follow adsorption dynamics in activated carbon beds. In the present work, this technique allows the detection of wall effects during the dynamic adsorption of methyl iodide. The analysis of transversal cross sections clearly shows the existence of radial concentration profiles within the filters. The adsorption profiles are directly linked to velocity profiles due to a higher permeability at the wall. It is essential to take into account this phenomenon to model adsorption and to predict precisely breakthrough times. © 2007, International Society for Industrial Process Tomography. All rights reserved.

Disciplines :

Chemical engineering

Author, co-author :

Léonard, Angélique ; Université de Liège - ULiège > Département de chimie appliquée > Génie chimique - Opérations physiques unitaires - Département de chimie appliquée

Wullens, Hilda

Blacher, Silvia ; Université de Liège - ULiège > Département des sciences cliniques > Labo de biologie des tumeurs et du développement

Marchot, Pierre ; Université de Liège - ULiège > Département de chimie appliquée > Génie chimique - Systèmes polyphasiques

Toye, Dominique ; Université de Liège - ULiège > Département de chimie appliquée > Génie de la réaction et des réacteurs chimiques

Crine, Michel ; Université de Liège - ULiège > Département de chimie appliquée > Génie chimique - Opérations physiques unitaires

Lodewyckx, Peter; Ecole Royale Militaire (Belgique) - ERM

Language :

English

Title :

Observation of wall effects in activated carbon filters by x-ray µCT

Publication date :

2007

Event name :

5th World Congress on Industrial Process Tomography

Event place :

Bergen, Norway

Event date :

3 September 2007 through 6 September 2007

Audience :

International

Main work title :

Proceedings of the 5th World Congress on Industrial Process Tomography, Bergen, Norway, September 6-9, 2007

Editor :

Mc Cann, H.

Johansen, G. A.

Publisher :

Virtual Centre for Industrial Process Tomography

ISBN/EAN :

978 0 85316 265 0

Pages :

342-347

Peer review/Selection committee :

Peer reviewed

Funders :

F.R.S.-FNRS - Fonds de la Recherche Scientifique

Available on ORBi :

since 12 August 2009

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Bibliography

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