A new cubic equation of state for prediction of VLE of polymer solutions
被引:9
作者:
Staudt, P. B.
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Univ Fed Rio Grande do Sul, Escola Engn, Dept Engn Quim, BR-90040040 Porto Alegre, RS, BrazilUniv Fed Rio Grande do Sul, Escola Engn, Dept Engn Quim, BR-90040040 Porto Alegre, RS, Brazil
Staudt, P. B.
[1
]
Soares, R. de P.
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Univ Fed Rio Grande do Sul, Escola Engn, Dept Engn Quim, BR-90040040 Porto Alegre, RS, BrazilUniv Fed Rio Grande do Sul, Escola Engn, Dept Engn Quim, BR-90040040 Porto Alegre, RS, Brazil
Soares, R. de P.
[1
]
Secchi, A. R.
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Univ Fed Rio de Janeiro, COPPE, PEQ, BR-21945970 Rio De Janeiro, BrazilUniv Fed Rio Grande do Sul, Escola Engn, Dept Engn Quim, BR-90040040 Porto Alegre, RS, Brazil
Secchi, A. R.
[2
]
Cardozo, N. S. M.
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Univ Fed Rio Grande do Sul, Escola Engn, Dept Engn Quim, BR-90040040 Porto Alegre, RS, BrazilUniv Fed Rio Grande do Sul, Escola Engn, Dept Engn Quim, BR-90040040 Porto Alegre, RS, Brazil
Cardozo, N. S. M.
[1
]
机构:
[1] Univ Fed Rio Grande do Sul, Escola Engn, Dept Engn Quim, BR-90040040 Porto Alegre, RS, Brazil
[2] Univ Fed Rio de Janeiro, COPPE, PEQ, BR-21945970 Rio De Janeiro, Brazil
A new cubic equation of state (CEOS) is proposed based on temperature-pressure superposition principle. A generic CEOS form, with the Peng-Robinson parameters, is used and a temperature-dependent attractive term a(T) is developed, allowing an easy calculation of thermodynamic properties and vapor-liquid equilibrium. The new equation is applied to pure polymer and polymer solutions and its results are compared with those of two others equations of state. For polymer solutions, two mixing rules without binary interaction parameters were used. The vapor-liquid equilibrium (VLE) predictions showed good agreement with experimental data as well as pressure-volume-temperature (PVT) behavior of polymer liquids, attesting the appropriate form of the new equation proposed. (C) 2010 Elsevier B.V. All rights reserved.
机构:
Sichuan Normal Univ, Sch Math & Software Sci, Chengdu 610066, Sichuan, Peoples R ChinaSichuan Normal Univ, Sch Math & Software Sci, Chengdu 610066, Sichuan, Peoples R China
Xie, Yingying
Yang, Zhaoyu
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机构:
Qin Nong Bank, Changan Rural Credit Cooperat, Xian 710100, Shanxi, Peoples R ChinaSichuan Normal Univ, Sch Math & Software Sci, Chengdu 610066, Sichuan, Peoples R China
Yang, Zhaoyu
Li, Lingfei
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Sichuan Normal Univ, Sch Math & Software Sci, Chengdu 610066, Sichuan, Peoples R ChinaSichuan Normal Univ, Sch Math & Software Sci, Chengdu 610066, Sichuan, Peoples R China
机构:
Sichuan Normal Univ, Sch Math & Software Sci, Chengdu 610066, Sichuan, Peoples R ChinaSichuan Normal Univ, Sch Math & Software Sci, Chengdu 610066, Sichuan, Peoples R China
Xie, Yingying
Yang, Zhaoyu
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h-index: 0
机构:
Qin Nong Bank, Changan Rural Credit Cooperat, Xian 710100, Shanxi, Peoples R ChinaSichuan Normal Univ, Sch Math & Software Sci, Chengdu 610066, Sichuan, Peoples R China
Yang, Zhaoyu
Li, Lingfei
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h-index: 0
机构:
Sichuan Normal Univ, Sch Math & Software Sci, Chengdu 610066, Sichuan, Peoples R ChinaSichuan Normal Univ, Sch Math & Software Sci, Chengdu 610066, Sichuan, Peoples R China