I got a limited amount of crude oil and want to turn it into the maximum amount of solid fuel. However, solid fuel can be made from heavy oil, light oil or petroleum gas.
Let's assume I have no other uses for any of these resources.
I omit water requirement as not important.
You can transform 2 heavy, 2 petroleum or 1 light to 1 solid fuel.
You can crack oil products: 4 heavy → 3 light → 2 petroleum.
Heavy oil gives you 0.5 solid fuel per heavy unit. Heavy cracked to light gives you 0.75×1 = 0.75 solid fuel per heavy unit.
Light oil gives you 1 solid fuel per light unit. light cracked to petroleum gives you 0.66×0.5 = 0.33 solid fuel per light unit.
Result: You should crack heavy into light, but avoid cracking light into petroleum.
Best values you can get per oil product unit: heavy → 0.75 solid fuel, light → 1 solid fuel, petroleum → 0.5 solid fuel
Basic oil processing gives 3 heavy, 3 light and 4 petroleum per 10 crude.
Advanced oil processing gives 1 heavy, 4.5 light and 5.5 petroleum per 10 crude.
Total solid fuel per 10 crude:
Result: It is better to use Advanced Oil Processing to maximize solid fuel yields.
