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The α function in the original Peng-Robinson equation of state was modified and expressed as a temperature-dependent form. The vapor-liquid equilibria for methanol+glycerol system were correlated at h...igh temperatures and pressures with the original Peng-Robinson equation of state with conventional mixing rules (PR EOS), the modified Peng-Robinson equation of state with conventional mixing rules (PR-M EOS), and the modified Peng-Robinson equation of state with Wong-Sandler mixing rules (PR-M-WS). The PR-M EOS greatly enhances the correlation accuracy both in liquid and vapor phases compared with PR EOS. In particularly, the correlation accuracy of liquid phase has been further improved by PR-M-WS.show more
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