شماره ركورد كنفرانس :
5041
عنوان مقاله :
Prediction of mass transfer coefficient in a L-shape pulse packed extraction column using axial dispersion model
Author/Authors :
S. Khooshechin School of Chemical Engineering - Faculty of Engineering - University of Tehran, Tehran, Iran , J. Safdari Material and Nuclear Fuel Research School - Nuclear Science and Technology Research Institute, Tehran, Iran , M. A. Moosavian School of Chemical Engineering - Faculty of Engineering - University of Tehran, Tehran, Iran , M. H. Mallah Material and Nuclear Fuel Research School - Nuclear Science and Technology Research Institute, Tehran, Iran
كليدواژه :
pulsed packed column , Mass transfer coefficient , axial dispersion model
عنوان كنفرانس :
The 10th International Chemical Engineering Congress & Exhibition (IChEC 2018)
چكيده فارسي :
چكيده فارسي ندارد.
چكيده لاتين :
In this study, the volumetric overall mass transfer coefficients have been investigated using axial dispersion model for two liquid systems of toluene/acetone/water and n-butyl/acetone/water which cover a wide range of interfacial tension. The experiments was carried out in a pilot plant of horizontal-vertical pulsed packed extraction column, with ceramic packs of Raschig rings type of 0.63 cm in diameter. The effects of operational parameters and physical properties on the mass transfer and axial mixing coefficients were studied, and it was found out that the volumetric overall mass transfer coefficient is seriously affected by pulsation intensity, however, dispersed and continuous phase flow rates have a weaker effect. Also, Ec and Ed have been almost influenced by the pulsation intensity, however each of the phases flow rate only affects the dispersion coefficient of the same phase. Finally, three empirical correlations for prediction of the overall mass transfer and axial mixing coefficients are derived in terms of dimensionless numbers. Good agreement between prediction and experiments was found for all operating conditions that were investigated.
