Modeling of a counter-current Sieve-plate liquid ndash;liquid extractor has been conducted using plug flow (PF) model and axial dispersion (AD) model. Several experiments were done using toluene/ acetic acid/ water system with acetic acid as mass transfer agent from aqueous to organic phase. New analytical solutions are proposed for two models respectively and the simulation results show a good agreement, compared with experimental data. In this paper, the solute concentration profiles in both ...
In this study, the solute concentration in a Sieve-plate column was modeled. Two different models that were continuous phase axial dispersion model and disperse-continuous phase axial dispersion model were considered to simulate the behavior of the plate column under different flow rates. In fact, the solute concentration profiles in both disperse and continuous phase based on dispersion model with and without consideration of axial dispersion in both phase were studied. These models were ...
The Medusozoa are a subphylum of the phylum Cnidaria including about 3800 species in three classes: Hydrozoa, Cubozoa, and Scyphozoa (Daly et al., 2007). Cnidarians emanated early in the history of metazoan evolution as exhibited by fossil evidence (Ausich and Babcock, 1998; Cartwright et al., 2007; Chen et al., 2002; Hagadorn and Waggoner, 2000; Han et al., 2010) and molecular phylogenies (Dunn et al., 2008; Peterson et al., 2004, 2008). Medusozoans enclose a variety of forms, containing ...
دانلود مقاله زبان اصلی: لغزش و سرعت مشخصه در یک ستون استخراج ضربه ای صفحه افقی ...