The regressed values for the equilibrium constants and
enthalpies of AMP protonation, PZCOO− formation and formation
of the PZ dicarbamate species are given in Table 5. The values
are in good agreement with published values, with the exception
of the enthalpy of PZ carbamate formation which was not
defined by the data (discussed shortly). The AARD% is 16.4% with
a parity plot shown in Fig. 5. In the work of (Yang et al., 2010)
the data was regressed using a Kent and Eisenberg model. The
equilibrium constants defining the amine reactions were assumed
dependent on temperature, CO2 loading and amine concentration.
This resulted in a total of 16 parameters to be regressed and yielded
an AARD% of 18.6%. Even if all parameters of the model considered
here were regressed (taking no account of if particular parameters
are defined and not considering interaction parameters) only 14
parameters would result. It was not possible to directly compare