References of "Pirard, Jean-Paul"
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See detailMultiscale texture characterization of wastewater sludges dried in a convective rig
Léonard, Angélique ULiege; Blacher, Silvia ULiege; Pirard, René ULiege et al

in Drying Technology (2003), 21(8), 1507-1526

Secondary sludges from two different wastewater treatment plants are conditioned and dewatered in the same way before drying in a lab-scale convective rig at the same operating conditions. Several ... [more ▼]

Secondary sludges from two different wastewater treatment plants are conditioned and dewatered in the same way before drying in a lab-scale convective rig at the same operating conditions. Several techniques are used to characterize the texture of the dried materials over a wide range of scales from nm up to mm. Texture and porosity of the dried products are studied by SEM imaging, nitrogen absorption isotherms (0.5 < d(p) < 50 nm), mercury porosimetry (7.5 nm < d(p) < 150 mum) and X-ray microtomography (spatial resolution= 41 mum). The image analysis of cross-sections reconstructed by microtomography also allows following shrinkage and textural evolution during drying. [less ▲]

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See detailSpectroscopic characterisation of Pd/SiO2 sol-gel prepared catalysts
Beketov, Gennadiy; Heinrichs, Benoît ULiege; Lambert, Stéphanie ULiege et al

Poster (2003)

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See detailFe/SiO2 sol-gel catalysts synthesised from various iron complexes for N2O decomposition and C3H6 oxidation by N2O
Heinrichs, Benoît ULiege; Maxim, Nicolae; Abbenhuis, Hendrikus C L et al

Poster (2003)

Detailed reference viewed: 21 (3 ULiège)
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See detailImage analysis of X-ray microtomograms of Pd-Ag/SiO2 xerogel catalysts supported on Al2O3 foams
Blacher, Silvia ULiege; Léonard, Angélique ULiege; Tcherkassova, Natalia et al

Poster (2003)

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See detailPreparation and characterization of xerogel catalyst microspheres
Alié, Christelle ULiege; Ferauche, Fabrice; Heinrichs, Benoît ULiege et al

Conference (2003)

For easier handling and use in fixed bed reactors, Pd-Ag/SiO2 aerogel-like xerogel catalysts were shaped into microspheres using the microencapsulation process developed by BRACE GmbH. Before the bead ... [more ▼]

For easier handling and use in fixed bed reactors, Pd-Ag/SiO2 aerogel-like xerogel catalysts were shaped into microspheres using the microencapsulation process developed by BRACE GmbH. Before the bead production process, the xerogel catalyst was ground in water and mixed with ethylene glycol and sodium alginate, the latter of which is the gelation agent. The beads were formed at a vibrating nozzle and solidified during their fall in a water tank containing calcium ions, which induce cross-linking of the alginate and consequent bead hardening. Preliminary work was done using a syringe instead of the material-consuming BRACE unit. The beads were made from a suspension of dried only, dried and calcined, or dried, calcined, and reduced catalyst. The textural properties of the beads were analyzed by nitrogen adsorption-desorption isotherms and mercury porosimetry; and bead catalytic activity was tested for selective hydrodechlorination of 1,2-dichloroethane. The beads made from a suspension of dried catalyst appear to have properties the closest to that of the xerogel reference catalyst. Porosity and surface area are maintained at their level before bead formation. However conversion of 1,2-dichloroethane decreases after the production process, possibly due to poisoning by calcium ions. (C) 2004 Elsevier B.V. All rights reserved. [less ▲]

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See detailGas diffusion in the funnel-shaped porous network of cogelled supported metal catalysts
Heinrichs, Benoît ULiege; Schoebrechts, Jean-Paul; Pirard, Jean-Paul ULiege

Poster (2003)

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See detailIs it possible to obtain a coherent image of the texture of porous materials?
Noville, Francis; Gommes, Cédric ULiege; Pirard, Jean-Paul ULiege et al

Poster (2002, December)

Detailed reference viewed: 24 (1 ULiège)
See detailCharacterization of multi-walled carbon nanotubes by image analysis
Gommes, Cédric ULiege; Bossuot, Christophe ULiege; Pirard, Jean-Paul ULiege

Scientific conference (2002, October)

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See detailSingle step synthesis of metal catalysts supported on porous carbon with controlled texture
Job, Nathalie ULiege; Ferauche, Fabrice; Pirard, René ULiege et al

Poster (2002, September 09)

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See detailAg/SiO2 and Cu/SiO2 cogelled xerogel catalysts for benzene combustion and 2-butanol dehydrogenation
Lambert, Stéphanie ULiege; Tcherkassova, Natalia; Cellier, Caroline et al

in CD-ROM of full texts of the 15th International Congress on Chemical and Process Engineering, CHISA 2002 (Paper P1.24, 9 p.) (2002, August 25)

Detailed reference viewed: 28 (12 ULiège)
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See detailTexture characterisation of ultramacroporous materials using non-destructive methods
Blacher, Silvia ULiege; Maquet, Véronique; Léonard, Angélique ULiege et al

Conference (2002, May)

Detailed reference viewed: 14 (2 ULiège)
See detailMulti-walled nanotubes diameter distribution by image analysis
Gommes, Cédric ULiege; Blacher, Silvia ULiege; Bossuot, Christophe ULiege et al

Scientific conference (2002, February)

Detailed reference viewed: 16 (2 ULiège)
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See detailNew silica based polymeric systems designed for the solid-liquid extraction of uranyl ions
Caprasse, F.; Leroy, Delphine ULiege; Martinot, Lucien et al

in Journal of Materials Chemistry (2002), 12(1), 137-142

Detailed reference viewed: 218 (21 ULiège)
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See detailSingle step synthesis of metal catalysts supported on porous carbon with controlled texture
Job, Nathalie ULiege; Ferauche, fabrice; Pirard, René ULiege et al

in Studies in Surface Science and Catalysis (2002), 143

Detailed reference viewed: 14 (1 ULiège)