What you want to ask is what is the desulfurization cost of high sulfur fuel oil? The desulfurization cost of high sulfur fuel oil is lower than that of 300 yuan/ton. High sulfur fuel oil is fuel oil with sulfur content as high as 3.5% or even 4.5%. The desulfurization cost of high-sulfur fuel oil is lower than 300 yuan/ton, and the fuel futures price is far lower than its actual value. Fuel oil generally refers to heavy oil, which is made from the residue of crude oil cooked under normal pressure. Heavy oil contains more sulfur, and most of the carbon is macromolecular cyclic carbide.