Читать книгу Process Intensification and Integration for Sustainable Design - Группа авторов - Страница 44

Figure 2.11 shows the revenue for the base case and high acid gas case. There is only a slight decrease in revenue compared with the base case for the high acid case. This is because only a small percentage of the incoming gas is acid gases, while the remainder of the feed composition is similar to that for the base case feed.

Figure 2.11 Revenue for the high acid gas case and base case (MM$/yr).

As shown in Table 2.8, the additional TCI required to treat this stream is not significant, as compared with the additional revenue, and therefore this stream is clearly worth treating (IROI > 10%).

Table 2.8 Incremental return on investment for high acid case.

	HA feed
ΔAnnual net profit (MM$/yr)	11.8
ΔTotal capital investment (MM$/yr)	6.15
Incremental ROI (%)	192