The chemical exergy for each stream was calculated using Eq. ( ). The required mass and molar fractions of components as well as the activity/fugacity were obtained from the ASPEN Plus database and simulation and the standard chemical exergies of compounds were retrieved using tabulated values and the correlation function of Shieh et al. Metrics such as the exergy destruction, exergy loss, cumulative exergy demand and exergetic efficiency can indicate the resource intensity and efficiency of a process. Eq. ( ) provides the exergy balance, where indices 𝑖𝑛 indicate incoming exergies and 𝑜𝑢𝑡 outgoing exergies. The Right-Hand-Side of Eq. ( ) is described as term 𝐼 and records the amount of exergy destruction within the system which accounts for entropy generation 𝑆 2-/ .