【摘要】 生物质与煤直接耦合燃烧技术作为一种经济高效、可规模化应用的低碳能源利用方式，对于推动煤电行业转型升级、实现能源结构低碳化及“双碳”目标具有重要意义。本文总结了生物质直接耦合燃烧技术的应用现状，分析了国内外该技术的工程应用进展：并重点分析了国内在循环流化床锅炉和煤粉炉两种主流炉型上进行耦合燃烧改造的具体实践与成效。进而，针对制约该技术大规模应用的关键环节进行了探讨，包括生物质燃料的预处理（破碎制粉）与稳定输送技术、生物质掺烧炉的燃烧组织、生物质灰分中碱金属对锅炉的影响、掺烧对锅炉超低排放（SO₂和NOx）的影响，以及精确的生物质掺烧比例在线监测面临的问题与研究进展。最后，本文对生物质直接耦合燃烧技术的未来发展前景进行了展望，旨在为相关技术的进一步研发与产业化推广提供参考。更多还原

【Abstract】 Biomass-coal direct co-combustion technology, as an economically efficient and scalable low-carbon energy utilisation approach, holds significant importance for advancing the transformation and upgrading of the coal-fired power sector, achieving a low-carbon energy structure, and realising the dual carbon goals. This paper summarises the current application status of biomass direct co-combustion technology, analyses its engineering application progress both domestically and internationally, and focuses on examining the specific practices and outcomes of co-combustion retrofitting in China’s two mainstream boiler types: circulating fluidised bed boilers and pulverised coal boilers. Subsequently, key constraints hindering large-scale deployment was discussed,including biomass fuel pretreatment（crushing and pulverisation） and stable conveying technologies, combustion organisation in biomass co-firing boilers, the impact of alkali metals in biomass ash on boilers, the impact of co-firing on boiler ultra-low emissions（SO₂ and NOx）, and challenges and research advances in precise online monitoring of biomass co-firing ratios. Finally,this paper outlines the future development prospects for biomass direct co-combustion technology, aiming to provide reference for further research and industrialisation of related technologies.更多还原