RT info:eu-repo/semantics/article
T1 Thermodynamic characterization of the (H2 + C3H8) system significant for the hydrogen economy: Experimental (p, ρ, T) determination and equation-of-state modelling
A1 Lozano Martín, Daniel
A1 Khanipour, Peyman
A1 Kipphardt, Heinrich
A1 Tuma, Dirk
A1 Chamorro Camazón, César Rubén
K1 Hydrogen; Propane; Binary mixtures; Single-sinker densimeter; Virial coefficients; Equation of state
AB For the gradual introduction of hydrogen in the energy market, the study of the properties of mixtures of hydrogen with typical components of natural gas (NG) and liquefied petroleum gas (LPG) is of great importance. This work aims to provide accurate experimental (p, ρ, T) data for three hydrogen-propane mixtures with nominal compositions (amount of substance, mol/mol) of (0.95H2 + 0.05C3H8), (0.90H2 + 0.10C3H8), and (0.83H2 + 0.17C3H8), at temperatures of 250, 275, 300, 325, 350, and 375 K, and pressures up to 20 MPa. A single-sinker densimeter was used to determine the density of the mixtures. Experimental density data were compared to the densities calculated from two reference equations of state: the GERG-2008 and the AGA8-DC92. Relative deviations from the GERG-2008 EoS are systematically larger than those from the AGA8-DC92. They are within the ±0.5% band for the mixture with 5% of propane, but deviations are higher than 0.5% for the mixtures with 10% and 17% of propane, especially at low temperatures and high pressures. Finally, the sets of new experimental data have been processed by the application of two different statistical equations of state: the virial equation of state, through the second and third virial coefficients, B(T, x) and C(T, x), and the PC-SAFT equation of state.
PB Elsevier
SN 0360-3199
YR 2023
FD 2023
LK https://uvadoc.uva.es/handle/10324/64595
UL https://uvadoc.uva.es/handle/10324/64595
LA spa
NO International Journal of Hydrogen Energy Volume 48, Issue 23, 15 March 2023, Pages 8645-8667
DS UVaDOC
RD 21-may-2024