In the frame of the present study, the influence of liquid viscosity on liquid holdup in a packed column equipped with the modular catalytic packing Katapak-SP 11 is measured. Water and an aqueous solution of glycerine, the viscosity of which equals 10 cP, are used as feed liquids. The estimation of liquid holdup is of great interest due to its strong influence on pressure drop, on solid wetting and on heat and mass transfer coefficients. Besides classical methods (e.g. drainage experiments), high energy X-ray tomography is used. The latter is a unique technique to visualize the local liquid distribution inside the complex structure of packings and to quantify the liquid holdup at different scales. Finally, the applicability of a recently proposed hydrodynamic model to the viscous system is tested.
The effect of liquid viscosity on fluid phase distribution in modular catalytic packings
BRUNAZZI, ELISABETTA
2011-01-01
Abstract
In the frame of the present study, the influence of liquid viscosity on liquid holdup in a packed column equipped with the modular catalytic packing Katapak-SP 11 is measured. Water and an aqueous solution of glycerine, the viscosity of which equals 10 cP, are used as feed liquids. The estimation of liquid holdup is of great interest due to its strong influence on pressure drop, on solid wetting and on heat and mass transfer coefficients. Besides classical methods (e.g. drainage experiments), high energy X-ray tomography is used. The latter is a unique technique to visualize the local liquid distribution inside the complex structure of packings and to quantify the liquid holdup at different scales. Finally, the applicability of a recently proposed hydrodynamic model to the viscous system is tested.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
