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Interfacial area measurement in a catalytic distillation packing using high energy X-ray CT by Saïd Aferka; Pierre Marchot; Michel Crine; Dominique Toye is a Engineering article available to read on EtoBox.

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In this paper, we report on the use of X-ray tomography to visualize and quantify the gas-liquid interfacial area in modular catalytic distillation packing elements. The calculation method is based on processing of tomographic images. It is validated by comparing specific surface area determined on dry packings (Mellapakீ 752Y and Katapakீ SP12) tomographic binary images (gas and solid) to values announced by manufacturers, based on geometrical considerations. These data agree fairly well. However, tomographic images show that the specific area is not distributed uniformly over the height of a packing element due to the presence of perforations in corrugated sheets and of wall wipers between the packing and the column wall. X-ray tomography is a unique technique to access to the spatial distribution of these geometrical details in a non-intrusive way. The method used to determine the specific surface area of dry packing is then applied to irrigated packing in order to determine the gas-liquid interfacial area. The axial distribution of the interfacial area is non-uniform and is correlated to the packing specific area. The maxima of the specific surface area correspond to the presen

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Author

Saïd Aferka; Pierre Marchot; Michel Crine; Dominique Toye

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0009-2509)

Published

2010

Language

EN

Field

Engineering (Physical Sciences)