Experimental measurement and modelling with Aspen Plus® of the phase behaviour of supercritical CO2+(n-dodecane+1-decanol+3,7-dimethyl-1-octanol)

High pressure phase behaviour of the CO2+1-decanol+n-dodecane system

“…However, the interaction between the two solutes was not accounted for and led to significant errors in the prediction of the solubility of the ternary system. Zamudio et al [6] concluded that the inclusion of solute-solute interaction parameters might lead to predicted values closer to those measured experimentally.…”

“…However, good experimental data is required to improve the predictive capabilities of these models and to verify their applicability [5][6][7].…”

“…As a first approximation to the modelling of the separation of detergent range alkanes and alcohols Zamudio et al [4,6] considered the separation of 1-decanol and n-dodecane using supercritical CO2. The solubility of two binary systems, namely CO2 + 1-decanol and CO2 + n-dodecane, as considered in their investigation.…”

“…For this purpose Zamudio et al [6] investigated a ternary system, CO2 + (77.8 wt% 1-decanol + 22.2 wt% n-dodecane) to observe the interaction between a close boiling primary alcohol and linear alkane.…”

“…Zamudio et al [6] modelled phase equilibrium data within the Aspen Plus ® process simulator with the specific objective of improving the process modelling of supercritical fluid processes using commercial simulators. The authors found that within Aspen Plus ® , and amongst the EOSs investigated in their study, the RK-Aspen (EOS) showed the best predictive capability.…”