AN EXPERIMENTAL STUDY OF THE GASEOUS POLLUTANT EMISSIONS IN PETROLEUM-COKE-FIRED FLUIDIZED BEDS

摘要

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 (SO_2, NO, and N_2O) 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.