Sub-Product

SOx quantity in the Exhaust Gas is twice the Sulfur feed rate in the Fuel. For example using 100 tonnes of Fuel per hour and Fuel Sulfur content is 2 % then feed rate of Sulpfr would be 2 tonnes per hour and if all of it burns then it will form 4 tonnes of SOx (64/32). For estimation purposes one may assume that about 95% of Sulfur would be oxidized that makes it 0.95*4 = 3.8 tonnes per hour. Out of this about 99 % would be as SO₂ and rest may be present as _SO3.