RT info:eu-repo/semantics/article
T1 Viscosity and density measurements of aqueous amines at high pressures: MDEA-water and MEA-water mixtures for CO2 capture
A1 Sobrino García, Manuel
A1 Concepción Rodríguez, Eduardo Iván
A1 Gómez Hernández, Ángel
A1 Martín González, María del Carmen
K1 Termodinámica
K1 Viscosity
K1 Density
K1 Falling body viscometer
K1 High pressure
K1 MDEA
K1 MEA
AB Viscosity and density are thermophysical properties crucial to characterizing any kind of fluidsuch as aqueous amines. These blends are becoming more and more relevant for their CO2capture potential, such that having accurate viscosity and density measurements would proveuseful. Densities and viscosities of these mixtures at atmospheric pressure may be found inthe literature although it is more difficult to find values at high pressures, these potentiallyproving interesting when seeking to provide a full description of these fluids.Viscosity and density measurements at high pressures (up to 120 MPa) and at temperaturesbetween 293.15 and 353.15 K of MDEA + water and MEA + water mixtures (both from 10 %to 40 % amine mass fraction) are presented in this work. Density measurements wereperformed with an Anton Paar DMA HPM densimeter with an expanded uncertainty (k = 2)less than ± 0.7 kg·m-3. A falling body technique was used to measure viscosities at highpressures due to its sturdiness in terms of corrosion. Details of this latter equipment arepresented, including calibration using n-dodecane and uncertainty calculations, which give arelative expanded uncertainty (k = 2) of less than ± 2.4 % for the highest viscosity and ± 2.9% for the lowest.
PB Elsevier
SN 0021-9614
YR 2016
FD 2016
LK http://uvadoc.uva.es/handle/10324/26145
UL http://uvadoc.uva.es/handle/10324/26145
LA eng
NO J. Chem. Thermodynamics,  march 2016, vol.98 p. 231–241
NO Producción Científica
DS UVaDOC
RD 02-may-2024