Auteur J. Ruud van Ommen
Documents disponibles écrits par cet auteur (4)
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Michael Wormsbecker, Auteur ; Todd Pugsley, Auteur ; J. Ruud van Ommen, Auteur |The hydrodynamics near the base of a 15 cm i.d. fluidized-bed dryer having perforated, punched, and porous plate distributors have been studied using one-dimensional X-ray densitometry imaging. The time-averaged solids concentration profiles of [...]
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Ali Akhavan, Éditeur scientifique ; J. Ruud van Ommen, Éditeur scientifique ; John Nijenhuis, Éditeur scientifique |Gas flow pulsation was employed to improve the drying of porous pharmaceutical granules in a cylindrical fluidized bed. In our approach, a fraction of the total flow was oscillating intermittently and periodically, typically at 3 Hz during 2 min[...]
Article : texte imprimé
D. Christensen, Auteur ; J. Nijenhuis, Auteur ; J. Ruud van Ommen, Auteur ; M.-O. Coppen, Auteur |Distributed secondary gas injection via a fractal injector was studied in a lab-scale 3-D fluidized bed to determine its effect on bubble size, bubble fraction, residence time, mixing, and conversion. The experimental results indicate improved r[...]
Article : texte imprimé
Kalyani Pangarkar, Auteur ; Tilman J. Schildhauer, Auteur ; J. Ruud van Ommen, Auteur |Reactor design for multiphase catalytic fixed bed reactors is always based on conflicting objectives. In the past, catalyst discovery and development preceded and motivated the selection of an appropriate multiphase reactor type. This type of se[...]
