References of "Crine, Michel"
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See detailRheological determination of the sol-gel transition during the aqueous synthesis of resorcinol-formaldehyde resins
Job, Nathalie ULg; Panariello, Fabian; Crine, Michel ULg et al

in Colloids and Surfaces A : Physicochemical and Engineering Aspects (2007), 293(1-3), 224-228

The sol-gel transition of organic gels prepared by polycondensation of resorcinol (R) with formaldehyde (F) in presence of sodium carbonate (C) was monitored by small amplitude oscillatory measurements ... [more ▼]

The sol-gel transition of organic gels prepared by polycondensation of resorcinol (R) with formaldehyde (F) in presence of sodium carbonate (C) was monitored by small amplitude oscillatory measurements, at a single frequency. The gelation time (t(g)) was determined from the evolution of the storage (G) and loss (G") moduli versus time. The influence of two synthesis variables, the resorcinol/sodium carbonate ratio (R/C) and the synthesis temperature (7), was investigated. The gelation time was found to decrease with increasing synthesis temperature and decreasing R/C ratio. The apparent activation energy of the reactional system leading to the gelation, calculated from the gelation times obtained between 50 and 90 degrees C, was found to be close to 80 kJ mol(-1) and independent of the R/C ratio. (c) 2006 Elsevier B.V. All rights reserved. [less ▲]

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See detailMesure de la distribution des phases dans une colonne de distillation réactive par tomographie à rayons X
Aferka, Saïd ULg; Saroha, A.; Toye, Dominique ULg et al

in Récents Progrès en Génie des Procédés - N°95 - Actes des 5èmes Journées francophones sur les réacteurs gaz-liquide et gaz-liquide-solide, 12-15 juin 2007, Carry-le-Rouet, France (2007)

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See detailCaractérisation des perturbations extracellulaires induites au sein des réacteurs scale-down par la superposition d'une approche expérimentale et d'une approche numérique
Delvigne, Frank ULg; Crine, Michel ULg; Toye, Dominique ULg et al

in Récents Progrès en Génie des Procédés - N°95 - Actes des 5èmes Journées francophones sur les réacteurs gaz-liquide et gaz-liquide-solide, 12-15 juin 2007, Carry-le-Rouet, France (2007)

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See detailModélisation d'un écoulement diphasique au sein d'un empilage structuré
Calvo, Sébastien ULg; Beugre, Djomice Antoine ULg; Aferka, Saïd ULg et al

in SFGP (Ed.) Récents Progrès en Génie des procédés - N°96 - Des réponses industrielles pour une société en mutation - Actes du 11ème Congrès de la Société française de Génie des procédés - 9-11 octobre 2007, Saint Etienne, France (2007)

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See detailSimple heuristic model of an aerosol filter
Lecocq, Raphaël; Calvo, Sébastien ULg; Saroha, A. et al

in SFGP (Ed.) Récents Progrès en Génie des procédés - N°96 - Des réponses industrielles pour une société en mutation - Actes du 11ème Congrès de la Société francophone de Génie des Procédés, 9-11 octobre 2007, Saint-Etienne, France (2007)

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See detailIn situ measurements of the static liquid holdup in Katapak-SP12 (TM) packed column using X-ray tomography
Aferka, Saïd ULg; Crine, Michel ULg; Saroha, A. K. et al

in Chemical Engineering Science (2007), 62(21), 6076-6080

Static liquid holdup was determined in situ, in a column packed with Katapak-SP12 (TM) elements, using a non-intrusive X-ray tomographic technique. Experiments were performed in a 10 cm diameter PVC ... [more ▼]

Static liquid holdup was determined in situ, in a column packed with Katapak-SP12 (TM) elements, using a non-intrusive X-ray tomographic technique. Experiments were performed in a 10 cm diameter PVC column with the air-water system. The technique allows a local determination of the various liquid holdup as well as of the capillary height, without dismantling the elements. Results are in good agreement with correlations proposed in the literature. (C) 2007 Elsevier Ltd. All rights reserved. [less ▲]

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See detailPhase distribution measurements in metallic foam using x-ray radiography and micro-tomography
Toye, Dominique ULg; Aferka, Saïd ULg; Calvo, Sébastien ULg et al

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

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See detailApplication des techniques tomographiques en génie des procédés
Léonard, Angélique ULg; Toye, Dominique ULg; Marchot, Pierre ULg et al

Scientific conference (2006, October 26)

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See detailTowards the production of carbon xerogel monoliths by optimizing convective drying conditions
Job, Nathalie ULg; Sabatier, Françoise; Pirard, Jean-Paul ULg et al

in Carbon (2006), 44(12), 2534-2542

Resorcinol-formaldehyde hydrogels prepared at various resorcinol/sodium carbonate ratios, R/C, were convectively air dried. The influence of the drying operating conditions, i.e. air temperature and ... [more ▼]

Resorcinol-formaldehyde hydrogels prepared at various resorcinol/sodium carbonate ratios, R/C, were convectively air dried. The influence of the drying operating conditions, i.e. air temperature and velocity, on the pore texture, shrinkage and cracking of the dried gels were investigated. Shrinkage was found to be isotropic. The shrinkage behaviour and the textural properties of the gels are independent of the drying operating conditions, but are completely determined by the value of the synthesis variables. The analysis of the drying kinetics shows two main drying periods. During the first phase, shrinkage occurs and the external surface of the material remains completely wet: heat and mass transfers are limited by external resistances located in a boundary layer. When shrinkage stops, the second period begins: the evaporation front recedes inside the solid and internal transfer limitations prevail. The drying time can be reduced by increasing the air temperature and/or velocity, but the temperature increase is limited when monolithicity is required, especially when the pores are small. For example, at a temperature of 160 degrees C and a velocity of 2 m/s, about 1 h is needed to dry a 2.8 cm in diameter and 1 cm in height cylinder containing macropores (pore width > 50 nm after drying). The same cylinder presenting small mesopores (pore width = 10-15 nm after drying) requires 20 h at 30 degrees C and 2 m/s to reach complete dryness without the development of cracks. (c) 2006 Elsevier Ltd. All rights reserved. [less ▲]

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See detailStudy of organic and water vapours adsorption on carbon filters by X-ray microtomography
Léonard, Angélique ULg; Blacher, Silvia ULg; Marchot, Pierre ULg et al

in Fourth International Symposium on Process Tomography in Poland, 2006, Varsóvia (2006, September)

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See detailVarious applications of X-ray microtomography in chemical engineering
Léonard, Angélique ULg; Blacher, Silvia ULg; Lodewyckx, Peter et al

Conference (2006, September)

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See detailModelling of the convective drying of resorcinol-formaldehyde resins: influence of the drying conditions on the induces stress tensor
Léonard, Angélique ULg; Crine, Michel ULg; Jomaa, Wahbi

in Farkas, Istvan (Ed.) Drying 2006, the Proceedings of the 15th International Drying Symposium,Budapest, Hungary, 20-23 August 2006, Vol. A (2006, August)

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See detailUse of X-ray tomography to study the influence of back mixing on the convective drying of sludges in a fixed bed
Léonard, Angélique ULg; Meneses, Eustedio; Le Trong, Emmanuel et al

in Farkas, Istvan (Ed.) Drying 2006, the Proceedings of the 15th International Drying Symposium, Budapest, Hungary, 20-23 August 2006, Vol B. (2006, August)

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See detailThermo-hygro-mechanical modelling of the convective drying of resorcinol-formaldehyde xerogel monoliths
Léonard, Angélique ULg; Crine, Michel ULg; Jomaa, Wahbi

in Proceedings of Carbon 2006 (2006, July)

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See detailTechniques tomographiques : des instruments de mesure de choix en génie chimique
Toye, Dominique ULg; Marchot; Léonard, Angélique ULg et al

Scientific conference (2006, May 17)

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