High-pressure vapour-liquid equilibria in the systems carbon dioxide + 2-butanol, + 2-butyl acetate, + vinyl acetate and calculations with three EOS methods

摘要: Abstract Bubble-point and some dew-point pressures vapour-liquid critical points of the binary systems carbon dioxide + 2-butanol, vinyl acetate 2-butyl were measured in temperature range 278–520 K up to 15 MPa a high-pressure capillary glass tube apparatus, using synthetic method. For system [(1 − x ) CO 2 ( 2-butanol] data three-phase line L 1 V for = 0.1495 are given 249–252 K. The UCEP is found at P 1.787 T 251.39 Modelling VLE three has been performed Stryjek-Vera modification Peng-Robinson EOS with both van der Waals one fluid mixing rules (PRSV) Wong-Sandler (PRSV/WS) translated modified PR linear combination Vidal Michelsen rules, LCVM model, Soave type expression Mathias-Copeman equation dependence attractive term t-mPR EOS. APACT only applied 2-butanol.