The densities and viscosities of partially carbonated monoethanolamine
(MEA), diethanolamine (DEA),
and N-methyldiethanolamine (MDEA) solutions were measured at
298 K. With increasing carbon dioxide
loadings, significant increases in both density and viscosity were
observed. These results were combined
with literature data to produce correlations for alkanolamine solution
density and viscosity as a function
of amine concentration, carbon dioxide loading, and temperature.
The resulting single-amine correlations
were used to predict the densities and viscosities of DEA + MDEA and
MEA + MDEA blends. Predictions
are compared with data measured for these blends.
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