Modelling (vapour + liquid) and (vapour + liquid + liquid) equilibria of {water (H<sub>2</sub>O) + methanol (MeOH) + dimethyl ether (DME) + carbon dioxide (CO<sub>2</sub>)} quaternary system using the Peng–Robinson EoS with Wong–Sandler mixing rule期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Modelling (vapour + liquid) and (vapour + liquid + liquid) equilibria of {water (H₂O) + methanol (MeOH) + dimethyl ether (DME) + carbon dioxide (CO₂)} quaternary system using the Peng–Robinson EoS with Wong–Sandler mixing rule

Authors:	Kongmeng Ye,Hannsjö rg Freund,Kai Sundmacher

Affiliation:	^aMax Planck Institute for Dynamics of Complex Technical Systems, Sandtorstr. 1, D-39106 Magdeburg, Germany;^bProcess Systems Engineering, Otto-von-Guericke University Magdeburg, Universitätsplatz 2, D-39106 Magdeburg, Germany

Abstract:	The (vapour + liquid) equilibria (VLE) and (vapour + liquid + liquid) equilibria (VLLE) binary data from literature were correlated using the Peng–Robinson (PR) equation of state (EoS) with the Wong–Sandler mixing rule (WS). Two group contribution activity models were used in the PRWS: UNIFAC–PSRK and UNIFAC–Lby. The systems were successfully extrapolated from the binary systems to ternary and quaternary systems. Results indicate that the PRWS–UNIFAC–PSRK generally displays a better performance than the PRWS–UNIFAC–Lby.

Keywords:	PRWS UNIFAC VLE VLLE Dimethyl ether Carbon dioxide Anti-solvent
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