References of "Crine, Michel"
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See detailSimple heuristic model of an aerosol filter
Lecocq, Rapahaël; Calvo, Sébastien ULg; Saroha, Anil et al

Poster (2006)

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See detailLiquid flow distribution in catalytic distillation columns : use of high-energy X-ray tomography
Aferka, Saïd ULg; Saroha, Anil; Toye, Dominique ULg et al

in AIChE (Ed.) AIChE Annual Meeting, Conference Proceedings, San Francisco, CA, United States, Nov. 12-17, 2006 (2006)

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See detailEtude du colmatage dans un bioréacteur membranaire à recirculation externe utilisé en nitrification partielle
Kouakou, Edouard; Pirard, Jean-Paul ULg; Marchot, Pierre ULg et al

in Proceedings of MEMPRO 3 - Intégration des membranes dans les procédés (2006)

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See detailInfluence of operating parameters on nitrite
Kouakou, Edouard; Salmon, Thierry ULg; Marchot, Pierre ULg et al

in Proceeding of the International Symposium on Environmental Biotechnology (2006)

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See detailMetal catalysts suppported on texture-tailored carbon xerogels
Job, Nathalie ULg; Léonard, Angélique ULg; Colomer, Jean-François et al

in Studies in Surface Science and Catalysis (2006), 162

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See detailGas-liquid mass transfer in a circulating jet-loop nitrifying MBR
Kouakou, Edouard; Salmon, Thierry ULg; Toye, Dominique ULg et al

in Chemical Engineering Science (2005), 60(22 Sp. Iss. SI), 6346-6353

Based on airlift configuration, a novel circulating jet-loop submerged membrane bioreactor (JLMBR) adapted to ammonium partial oxidation has been developed. Membrane technology and combined air and water ... [more ▼]

Based on airlift configuration, a novel circulating jet-loop submerged membrane bioreactor (JLMBR) adapted to ammonium partial oxidation has been developed. Membrane technology and combined air and water forced circulation are adopted to obtain a high biomass retention time and to achieve a separate control of mixing and aeration. This study is intended to determine how gas-liquid mass transfer is affected by operating conditions. In a first approximation, liquid was assumed to be perfectly mixed. A classical non-steady state clean water test, known as the "gas out-gas in" method, was used to determine the gas-liquid mass transfer coefficient k(L)a. Air and recirculated liquid superficial velocities were gradually increased from 0.013 to 0.019m s(-1) and 0.0056 to 0.011 m s(-1), respectively. Subsequently, the gas-liquid mass transfer coefficient kLa varied from 0.01 to 0.02 s(-1). It appears to be influenced by the combined action of air and recirculated liquid flowrates in the range 0.72-1.03N m(3) h(-1) and 0.30-0.58 m(3) h(-1), respectively, for air and liquid. Correlations are proposed to describe this double influence. Experiments were performed on tap water and a culture medium used for the autotrophic growth of nitrifying bacteria, respectively. Oxygen transfer appeared to be not significantly affected by the mineral salt (0.48 g 1(-1)) encountered in this medium. (c) 2005 Elsevier Ltd. All rights reserved. [less ▲]

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See detailImaging of liquid distribution in reactive distillation packings with a new high-energy x-ray tomograph
Toye, Dominique ULg; Crine, Michel ULg; Marchot, Pierre ULg

in Measurement Science & Technology (2005), 16(11), 2213-2220

We describe a new, high-energy (420 kV), large-scale (0.45 m in diameter, 4 m in height) x-ray tomograph developed to investigate gas and liquid flow through fixed bed like absorption, distillation and ... [more ▼]

We describe a new, high-energy (420 kV), large-scale (0.45 m in diameter, 4 m in height) x-ray tomograph developed to investigate gas and liquid flow through fixed bed like absorption, distillation and reactive distillation columns. The first results obtained with this set-up on test objects (physical phantoms), such as a cylindrical container filled with water or a large diameter structured metallic packing, validate the technique as a quantitative tool for geometrical measurements. Very detailed two-dimensional (21)) and three-dimensional (3D) images of a 0.09 m diameter KATAPAK-SP 12, a reactive distillation packing, are presented. Quantitative information relative to liquid hold-up distribution may be obtained from tomographic imaging performed on an irrigated column packed with this element. [less ▲]

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See detailProduction de xérogels de carbone hyperporeux par séchage convectif
Léonard, Angélique ULg; Job, Nathalie ULg; Jomaa, Wahbi et al

in Azzaro-Pantel, Catherine; Bertrand, Joel; Cabassub, Michel (Eds.) et al Récents progrès en génie des procédés N° 92: 10ème Congrès de la SFGP, Toulouse 2005. Le génie des procédés vers de nouveaux espaces (2005, October)

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See detailTowards the production of carbon xerogel monoliths by optimizing convective drying conditions
Léonard, Angélique ULg; Sabatier, Françoise; Job, Nathalie ULg et al

Poster (2005, October)

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See detailAnalyse quantitative de la texture poreuse d'un matériau polymère cellulaire basée sur des images de microtomographie à rayons X
Lecocq, Raphaël; Toye, Dominique ULg; Maquet, Véronique et al

Poster (2005, October)

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See detailÉtude de la texture poreuse d'un matériau polymère cellulaire utilisé en ingénierie tissulaire par microtomographie à rayons X
Lecocq, Raphaël; Toye, Dominique ULg; Maquet, Véronique et al

Poster (2005, October)

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See detailProduction de xérogels de carbone hyperporeux par séchage convectif
Léonard, Angélique ULg; Job, Nathalie ULg; Jomaa, W. et al

Poster (2005, September 20)

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See detailImage analysis of X-ray microtomograms of soft materials during convective drying: 3D measurements
Léonard, Angélique ULg; Blacher, Silvia ULg; Marchot, Pierre ULg et al

in Journal of Microscopy-Oxford (2005), 218(Pt 3), 247-252

Drying dewatered sludge leads to a complex three-dimensional porous structure. Moreover, this operation is dependent on the way the material is processed. In this study, textural changes of sludge ... [more ▼]

Drying dewatered sludge leads to a complex three-dimensional porous structure. Moreover, this operation is dependent on the way the material is processed. In this study, textural changes of sludge extrudates submitted to convective drying are followed by a 3D image analysis of reconstructed X-ray microtomograms. To achieve this goal, two different wastewater sludges collected in wastewater treatment plant after the thickening step and dewatered in the laboratory are used. It is showed that the evolution of the 3D-crack ratio vs. the residual water content evolves following a hyperbolic law. The 3D opening crack size distribution reveals two different types of pore development, i.e. a continuous pore size evolution for one sludge and the sudden appearance of cracks for the other sludge. [less ▲]

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See detailProduction of resorcinol formaldehyde xerogels by convective drying
Léonard, Angélique ULg; Jomaa, Wahbi; Crine, Michel ULg

in Proceedings of the joint conference of AFSIA (Association Française pour le Séchage dans l’Industrie et l’Agriculture) and Working group on Drying of EFCE at INA P-G, Paris, 12th and 13th May, 2005 (2005, May)

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See detailEffect of back mixing during convective drying of wastewater sludges
Léonard, Angélique ULg; Meneses, Eustedio; Salmon, Thierry ULg et al

in Proceeedings of the joint of AFSIA (Association Française de Séchage dans l'Industrie et l'Agriculture) and Working group on Drying of EFCE at INA P-G, Paris, 12th and 13th May, 2005 (2005, May)

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