New Equations of State for Binary Hydrogen Mixtures Containing Methane, Nitrogen, Carbon Monoxide, and Carbon Dioxide

被引：35

作者：

Beckmueller, R. ^{[1
]}

Thol, M. ^{[1
]}

Bell, I. H. ^{[2
]}

Lemmon, E. W. ^{[2
]}

Span, R. ^{[1
]}

机构：

[1] Ruhr Univ Bochum, Thermodynam, Univ Str 150, D-44801 Bochum, Germany

[2] NIST, Appl Chem & Mat Div, 325 Broadway, Boulder, CO 80305 USA

来源：

JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA | 2021年 / 50卷 / 01期

基金：

欧盟地平线“2020”;

关键词：

equation of state; Helmholtz energy; hydrogen; mixture model; thermodynamic properties; VAPOR-LIQUID-EQUILIBRIUM; 2ND VIRIAL-COEFFICIENTS; V-T DATA; THERMODYNAMIC PROPERTIES; TERNARY MIXTURES; GAS-MIXTURES; TEMPERATURE-RANGE; PHASE-EQUILIBRIA; OF-STATE; FUNDAMENTAL EQUATIONS;

D O I：

10.1063/5.0040533

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

New equations of state for the binary mixtures H-2 + CH4, H-2 + N-2, H-2 + CO2, and H-2 + CO are presented. The results are part of an ongoing research project aiming at an improvement of the GERG-2008 model for the description of hydrogen-rich multicomponent mixtures. The equations are formulated in terms of the reduced Helmholtz energy and allow for the calculation of all thermodynamic properties over the entire fluid surface including the gas phase, liquid phase, supercritical region, and equilibrium states. The mathematical structure of the new mixture models corresponds to the form chosen for the reference model GERG-2008 of Kunz and Wagner [J. Chem. Eng. Data 57, 3032 (2012)]. In this way, the equations can be implemented into the existing framework of the GERG-2008 model. The ranges of validity of the new equations correspond to the normal and extended ranges of validity of the GERG-2008 model.

引用

页数：22

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