Combustion Consumables Cost Analysis in 110 MW gross CFB type CFPP Biomass Co-firing Application

Increasing the share of renewable energy in Indonesia's energy mix is a key priority to meet its energy needs and reduce its carbon footprint. Biomass co-firing has emerged as a promising solution to achieve this goal, but the cost of biomass compared to coal remains a challenge. This study examines the feasibility of co-firing palm kernel shells (PKS) with normal and high-sulfur coal in a CFB boiler, and its impact on SO2 emissions, limestone consumption for desulfurization, and operational costs. Several CFB boiler were tested using different fuel ratios of PKS and coal, ranging from 0 to 30%. The results show that co-firing PKS with coal in a CFB boiler is feasible and can reduce SO2 emissions and the operational costs of desulfurization consumables. Using PKS as a biomass co-firing fuel can offset the additional cost of switching from coal to biomass and make it a cost-effective solution for increasing the share of renewable energy in Indonesia's energy mix. The research provides insights into the potential of biomass co-firing in CFB boilers and its effectiveness in reducing emissions and operational costs. The findings can be valuable for policymakers, energy planners, and energy companies seeking to increase the share of renewable energy in their energy mix while reducing their carbon footprint.