A novel approach for enclosing all heterogeneous and reactive azeotropes in multi-component mixtures is presented. The thermodynamic conditions for azeotropy form a system of nonlinear equations. A deterministic global optimization approach is introduced in which the global optimization problem may contain multiple global minima and there is a one-to-one correspondence between each global minim...

The low critical solution temperature (LCST) and minimum salt concentration that cause phase splitting in water short-chain alcohol mixtures were determined experimentally. alcohols, which are completely miscible with (methanol, ethanol, 1-propanol, 2-propanol, tert-butanol) most of the common salts (those Na+, K+, Ca2+, NH4+ cations Cl–, SO42–, CO32–, NO3– anions), studied. Experimentally data...

The presence of both critical and azeotropic states in the vapor-liquid equilibria (VLE) is a very important issue chemical refrigeration engineering. knowledge phase behavior (subcritical phase/supercritical phase) refrigerant allows designing optimizing industrials processes. However, it rare to find data for this information, which poses great challenge researchers develop predictive correla...

Limonene is the main constituent of citrus oils whose oxidation produces a set fine chemical compounds such as carvone, carveol, and limonene 1,2-epoxide. This contribution reports results experimental evaluation computational simulation carvone separation by fractional distillation from reaction mixture. Carvone was obtained over perchlorinated iron phthalocyanine supported on modified silica ...