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Título
Impact of hydrogen addition, up to 20 % (mol/mol), on the thermodynamic (p, ρ, T) properties of a reference high-calorific natural gas mixture with significant ethane and propane content
Autor
Año del Documento
2025
Editorial
Elsevier
Descripción
Producción Científica
Documento Fuente
International Journal of Hydrogen Energy, 2025, vol. 140, p. 256-271
Resumen
Injecting hydrogen into the natural gas grid supports gradual decarbonization. To check the accuracy of equations of state for hydrogen-enriched natural gas mixtures, precise density data from well-characterized reference mixtures are essential. In a prior study, we provided experimental measurements for a natural gas constituted mainly of methane and for two derived hydrogen-enriched mixtures. In the present study, being the second and final part of our investigation, density measurements for a high-calorific natural gas with significant ethane and propane content, along with two hydrogen-enriched variants (10 and 20 mol-% hydrogen) are provided. The mixtures are gravimetrically prepared following ISO 6142-1. Density measurements, conducted with a single-sinker densimeter at temperatures from (260–350) K and pressures up to 20 MPa, are compared with three equations of state: AGA8-DC92, GERG-2008, and an improved GERG-2008. Results indicate that all models perform better for methane-dominant mixtures than for those containing heavier hydrocarbons.
Palabras Clave
Hydrogen-enriched natural gas
Gravimetric preparation
Single-sinker densimeter
High-pressure density
Isothermal compressibility
Reference equations of state
ISSN
0360-3199
Revisión por pares
SI
Patrocinador
Programa Europeo de Metrología para la Innovación y la Investigación (EMPIR), ID de financiación: 10.13039/100014132, subvención n.º 19ENG03 MefHySto
Junta de Castilla y León, el Ministerio de Ciencia e Innovación MCIN y el programa NextGenerationEU/PRTR de la Unión Europea, en el marco del proyecto C17.I01.P01.S21
Junta de Castilla y León, el Ministerio de Ciencia e Innovación MCIN y el programa NextGenerationEU/PRTR de la Unión Europea, en el marco del proyecto C17.I01.P01.S21
Version del Editor
Propietario de los Derechos
© 2025 The Author(s)
Idioma
eng
Tipo de versión
info:eu-repo/semantics/publishedVersion
Derechos
openAccess
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