An Experimental Study of the Gaseous Pollution Emissions in Petroleum-Coke-Fired Fluidized Beds

Petroleum cokes have high calorific value (about 37 MJkg⁻¹), high sulfur content (2–7% wt.), and high nitrogen content (1∼3% wt.), introducing serious environmental problems when using as fuel. In this paper the effects of operating parameters (bed temperature, Ca/S mole ratio, and excess oxygen) on gaseous pollutant (SO₂, NO, and N₂O) emissions in a well-controlled bench scale fluidized bed reactor and an 1t/h bubbling fluidized bed for different type of petroleum cokes. Finally, the pollution emission differences between petroleum coke and coal were compared and the reasons were analyzed.