A New MINLP Continuous Time Formulation for Scheduling Optimization of Oil Refinery with Unreliable CDUs

Table 13

Size and performance of the proposed model on case studies 1–4.

Parameter	Case study
	1	2	3	4
No. of oil types	4	6	7	8
No. of charging tanks	2	3	3	3
No. of CDUs	2	3	4	5
No. of variables	245	892	1420	2104
No. of constraints	721	4020	7063	11312
CPU time (second)	976	1962	2562	33471