due to its small pKa (pKa = 5.3 (Bishnoi and Rochelle, 2000)). VLE
data was taken from two sources, a study at high pressure by
(Kamps et al., 2003) and a low pressure study by (Ermatchkov et al.,
2006). This resulted in 143 data points covering PZ concentrations
of 1.0–4.4 mol dm−3, CO2 loadings of up to 1.68 and temperatures
of 313–393 K.