With the growing interest in global warming, renewable energy sources, which contribute to low carbonization and decarbonization, have been expanding across the globe in recent years. Among renewable energy sources, biomass power generation system can serve as a stable and adjustable power source with a large capacity and can help to reduce CO2 emissions in thermal power plants from the aspect of a carbon neutrality concept. After developing a pulverized coal-fired power generation system with a high biomass co-firing ratio and testing it using an actual unit, Mitsubishi Hitachi Power Systems, Ltd. (MHPS) developed a highly-efficient power generation system with the exclusive firing of pulverized biomass while taking into consideration the biomass grindability/combustibility/ash deposition in the boiler. This system is a technology that can be applied to not only newly-constructed thermal power plants, but also existing coal-fired thermal power plants without accompanying substantial equipment modification.
