Por favor, use este identificador para citar o enlazar este ítem:https://uvadoc.uva.es/handle/10324/58882
Título
Heat capacities of different amine aqueous solutions at pressures up to 25 MPa for CO2 capture
Autor
Año del Documento
2023
Editorial
Elsevier
Descripción
Producción Científica
Documento Fuente
Journal of Molecular Liquids, 2023,
vol. 377, 121575
Abstract
A high-pressure flow calorimeter is used to determine isobaric heat capacities for aqueous solutions of some amines such as MEA, DEA TEA, DMAE, MDEA, PZ from T = (293.15 to 353.15) K and up to 25 MPa. The experimental device can measure heat capacities with an estimated total uncertainty better than 1% for a coverage factor k = 2. The isobaric heat capacity values are analysed in conjunction with their temperature and pressure dependencies. Furthermore, empirical equations are proposed to fit isobaric heat capacities as functions of temperature and pressure for given conditions, for this kind of mixtures, obtaining standard deviations within the uncertainty of the measurements. Finally, DMAE shows the highest value of heat capacity and TEA the lowest value, when they are compared at the same conditions of temperature, pressure and composition.
Materias (normalizadas)
Física
Calorímetros y calorimetría
Materias Unesco
22 Física
Palabras Clave
Heat capacities
Monoethanolamine (MEA)
Diethanolamine (DEA)
Triethanolamine (TEA)
Capacidades de calor
Monoetanolamina (MEA)
Dietanolamina (DEA)
Trietanolamina (TEA)
ISSN
0167-7322
Revisión por pares
SI
Patrocinador
Junta de Castilla y León - EU-FEDER (VA280P18 y CLU-2019-04)
Fellowship “Beatriz Galindo Senior” (BEAGAL18/00259)
Fellowship “Beatriz Galindo Senior” (BEAGAL18/00259)
Propietario de los Derechos
© 2023 The Authors
Idioma
eng
Tipo de versión
info:eu-repo/semantics/publishedVersion
Derechos
openAccess
Collections
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