生物质-煤混合燃烧技术的进展研究

Research on co-firing of biomass and coal

生物质-煤混合燃烧是指将生物质在传统的燃煤锅炉中与煤混合燃烧,充分地利用现有燃煤发电厂的巨额投资和基础设施。讨论了生物质-煤混合燃烧的技术进展,包括直接混合燃烧、并联燃烧和间接燃烧的技术方案及其优缺点;分析了混合燃烧对系统运行和排放的影响;指出了混合燃烧在现阶段是一种低成本、低风险可再生能源利用方式,并提出了有关政策建议。

The co-firing of biomass and coal means to make use of biomass as fuel.The combustion happens in a traditional type of coal burning boiler thereby making the most best use of the substantive investment and infrastructures of a modern coal burning power plant.In this article,the author demonstrates the latest technique development,including advantages and disadvantages of technologies regarding direct mixed firing,collateral burning and indirect burning.In particular,the author analyzes the influence of the mixed firing technology on the operation and emissions of the whole system.In conclusion,the author indicates that the mixed firing technology is currently a way of using renewable energy with low cost and low risks.Recommendations on the application policy are also presented.