An Experimental Study of Combustion Characteristics of Petroleum Coke

The combustion characteristics of petroleum coke have been analyzed by the TGA method. The same tests have also been performed to determine the combustion characteristics of 3 types of coals for comparison. The combustion tests and measurement of the pollutant emissions for petroleum coke and a mixture of petroleum coke and coal have been performed in a bench-scale CFB rig by limestone addition. The pollutant emissions have been measured by an on-line analyzer. The results show that the index of combustion characteristics of the petroleum coke is higher than that of anthracite, and lower than that of soft coal, and close to lean coal. During the 72-hour combustion tests, agglomeration and slagging were not observed. The combustion is stable and the pollutant emissions are within the environmental standards.