Equilibrium distribution of water in the two-phase system supercritical carbon dioxide–textile

摘要: When natural fibres are dyed in supercritical carbon dioxide, the addition of a small amount water increases coloration. For process design it is important to know how much has be added obtain desired humidity both textile and dioxide. In this work thermodynamic model proposed calculate distribution over phase as function pressure temperature. The equilibrium described with Raoult's law for non-ideal fluids. absorbed condensed modelled here liquid, using NRTL-equation. non-ideality by solubility enhancement factor, new equation derived from statistical thermodynamics. Although applied cotton, viscose, silk wool, can used all absorbing textiles.