An Evaluation of Co-firing Palm Kernel Shell with Coal on CFB Power plant

Abstract

The biomass-coal co-firing test was carried out at the Circulating Fluidized Bed (CFB) power plant to evaluate operating parameters, economical fuel cost, and emission changes. Without modification, fuel mixing was carried out at the coal yard. Collecting data and sampling measurement is performed under the performance testing standards. The result shows that co-firing 5% PKS and 10% PKS in the CFB power plant contributes to an increase in the average temperature of the upper furnace, bed, and seal pot. The bed and air chamber pressure increased during the co-firing test. Besides, the total fuel flow and flue gas temperature have decreased. Furthermore, the SO2, NOx, and CO emissions are increased compared to baseline conditions. Changes in operating parameters are still on the normal operating range. The potential for corrosion due to chlorine is in a minor category. Specific fuel consumption in scenarios B and C decreased by 1.51 % and 1.90%, respectively, compared to the baseline condition. The fuel cost in scenarios B and C is lower by Rp. 9,-and Rp. 15,-per kWh compared to scenario A.