The beginning of the amazing events at Krakatoa in 1883 date to May 20 when there were initial rumblings and venting from the volcano, which had been dormant for about 200 years.
A refinery margin is the revenue associated with refining petroleum, expressed as a value per volume (e.g. $/L), net of the cost of the crude oil input. The simplest refining
Efficiency Edit. The refinery is a quite an efficient way to obtain large amounts of fuel. Even though it has to be fueled itself. Given the input of about 5~10 Wood one could convert 1 Crude Oil into 3 Low Grade Fuel.fficiency Edit. The refinery is a quite an efficient way to obtain large amounts of fuel. Even though it has to be fueled itself. Given the input of about 5~10 Wood one could convert 1 Crude Oil into 3 Low Grade Fuel.