"Alfa" function for a series of hydrocarbons to Peng-Robinson and van der Waals equations of state (2001)
- Authors:
- Autor USP: TERRON, LUIZ ROBERTO - EP
- Unidade: EP
- Subjects: TERMODINÂMICA (FÍSICO-QUÍMICA); HIDROCARBONETOS
- Language: Inglês
- Abstract: This paper reports estimated coefficients for the"alfa" function based on vapor pressure data to a series of 438 components, mainly hydrocarbons, for both vas der Waals and Peng-Robinson equations of state(EoS). The"alfa" function utilized for the attractive term is the one proposed by Mathias and Copeman in 1983, and it improves the cubic EoS calculations. Accurate vapor-pressure correlations and critical data required for the estimation of the constants were retrieved from two databases, i.e., AICHE DIPPR and the Reid et al. (The Properties of Gases and Liquids; McGraw-Hill: New York, 1987) reference book. The method of calculation is described, and the constants are tested with respect of their representation of thermodynamic properties, mainly in terms of the vapor-pressure deviations. The behavior of density and enthalpy EoS predictions is also evaluated. The estimated coefficients for the "alfa" function are reported in the Supporting Information and may be applied as a dat bank in a simulator, providing more accurate thermodynamic property calculations in the recommended temperature range, as demonstrated
- Imprenta:
- Source:
- Título do periódico: Industrial and Engineering Chemistry Research
- ISSN: 0888-5885
- Volume/Número/Paginação/Ano: v. 40, n. 28, p. 6240-6244, 2001
-
ABNT
CHIAVONE FILHO, Osvaldo; AMARAL FILHO, Pedro G.; SILVA, Douglas Nascimento; TERRON, Luiz Roberto. "Alfa" function for a series of hydrocarbons to Peng-Robinson and van der Waals equations of state. Industrial and Engineering Chemistry Research, São Paulo, v. 40, n. 28, p. 6240-6244, 2001. -
APA
Chiavone Filho, O., Amaral Filho, P. G., Silva, D. N., & Terron, L. R. (2001). "Alfa" function for a series of hydrocarbons to Peng-Robinson and van der Waals equations of state. Industrial and Engineering Chemistry Research, 40( 28), 6240-6244. -
NLM
Chiavone Filho O, Amaral Filho PG, Silva DN, Terron LR. "Alfa" function for a series of hydrocarbons to Peng-Robinson and van der Waals equations of state. Industrial and Engineering Chemistry Research. 2001 ; 40( 28): 6240-6244. -
Vancouver
Chiavone Filho O, Amaral Filho PG, Silva DN, Terron LR. "Alfa" function for a series of hydrocarbons to Peng-Robinson and van der Waals equations of state. Industrial and Engineering Chemistry Research. 2001 ; 40( 28): 6240-6244. - Study of equations of state (EOS) performance in the estimative of natural gas volumetric properties
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