期刊
JOURNAL OF CHEMICAL AND ENGINEERING DATA
卷 58, 期 11, 页码 3069-3077出版社
AMER CHEMICAL SOC
DOI: 10.1021/je4005239
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资金
- Romanian Ministry of Labour, Family and Social Protection [POSDRU/107/1.5/S/76903]
In this work experimental vapor-liquid equilibrium (VLE) data and three-phase vapor-liquid-liquid equilibrium (VLLE) data are presented for the carbon dioxide + 1-decanol system. The VLE data were measured at five temperatures, (303.2, 308.2, 323.2, 333.2, and 343.2) K, and pressures up to 16 MPa. The VLLE data cover pressure-temperature (P-T) values from 289 K to represent the complex fluid phase behavior (P-T critical curve, VLLE line, and 5 MPa to the upper critical end point (UCEP). We have used two models and VLE isotherms) of the carbon dioxide + 1-decanol system: the cubic general equation of state (GEOS) and Peng-Robinson (PR) equation in conjunction with van der Waals two parameters conventional mixing rules (2PCMR). A correlation method involving temperature-dependent interaction parameters and a semipredictive approach with independent temperature interaction parameters have been used. Comparisons with experimental data reported in this work and available in the literature indicate that the topology of fluid phase behavior is satisfactorily given by the semipredictive procedure both for the critical line and in subcritical region, considering the relative simple used cubic equations of state.
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