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Mass transfer and hydrodynamic characteristics of new carbon carbon packing: Application to CO2 post-combustion capture by Pascal Alix; Ludovic Raynal; François Abbe; Michel Meyer; Michel Prevost; David Rouzineau is a Engineering article available to read on EtoBox.

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A novel structured packing, the 4D packing, has been characterized in terms of hydrodynamics, effective area and gas side mass transfer coefficient. The increase of the 4D opening fraction allows to reduce pressure drop and to get a better capacity than Mellapak 500Y and 750Y, for which the geometric areas are similar. The 50% open 4D packing, 4D-50%, leads to effective areas which are higher than Mellapak 500Y ones, and doubled compared with MellapakPlus 252Y ones. Effective areas for the 4D do not decrease when the opening fraction increases from 30 to 50%, this indicates that a non-negligible amount of droplets is generated at 50%. Gas side mass transfer coefficient had been measured with an original experimental method: water evaporation. Corresponding results seem to be in agreement with the literature, and with the fact that a large amount of droplets is generated. Correlations are proposed for both effective area and gas side mass transfer coefficient for the 4D-50%. The 4D-50% packing could be very interesting for post-combustion CO 2 capture since it generates low pressure drop and a very high interfacial area. This will be further confirmed by an economic study for which

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Author

Pascal Alix; Ludovic Raynal; François Abbe; Michel Meyer; Michel Prevost; David Rouzineau

Publisher

Institution of Chemical Engineers; Elsevier ; Institute of Chemical Engineers; Elsevier BV (ISSN 0263-8762)

Published

2011

Language

EN

Field

Engineering (Physical Sciences)