摘要
Abstract
Under the target of double-carbon,co-firing of biomass has become an important technical route for low-carbon development of coal-fired units.With the continuous development of carbon pricing and energy crop research,direct blending of energy crops in coal-fired units will be an important scenario in the future.Based on a brief introduction of the typical technical process for direct co-firing of biomass crops in coal-fired units,an economic calculation model is established with a comparison to the pure coal-fired power generation,and the economic feasibility under different conditions is analyzed for a typical 300 MW unit.Results show that when the calorific value of biomass crop briquetted fuel is 16 MJ/kg,the heat blending ratio of biomass crop is 10%,and the price of biomass crop briquetted fuel,standard coal and carbon price are 600 yuan/t,900 yuan/t and 100 yuan/t resepectively,the economic benefit of the blending combustion of biomass crops is almost equivalent to that of the pure coal-fired power generation.The calorific value price of biomass crop fuel and coal and carbon price are main factors affecting the economy of power generation for co-firing of biomass crops.The effectiveness on the co-firing of biomass crops with an increment of 100 yuan/t for the standard coal price is similar to that caused by a decrement of 52.0 yuan/t for the price of biomass crops with certain colorific value or an increment of 39.4 yuan/t for carbon price.In the future,with the rise of carbon price and the continuous maturity of biomass crop supply chain system,the economic demonstration for co-firing of biomass crops will be more feasible,and it could be considered to accelerate promotion in suitable areas.关键词
碳定价/燃煤机组/生物质掺烧/能源植物/技术经济分析Key words
carbon pricing/coal-fired power plant/biomass co-firing/energy crops/techno-economic analysis分类
能源科技
