Against the backdrop of the current global commitment to achieving the dual-carbon goals of carbon peaking and carbonneutrality,the question of how to effectively increase the proportion of renewable energy and reduce the reliance on traditional fossil fuelssuch as coal has become a key issue in the transformation of the energy strategies of countries around the world. Biomass energy,as arenewable resource with great potential,has emerged as a promising avenue with its abundant quantity,widespread availability,convenient storage and transportation. The significant coupling of biomass in coal-fired boilers can effectively reduce emissions ofgreenhouse gases,nitrogen oxides,sulfur oxides,and other pollutants. Additionally,due to the high volatile content,high reactivity,lowash and sulfur element in biomass,it can be used not only as a direct combustion feedstock but also a coupled fuel with coal powdercombustion after gasification. Whether adopting the direct combustion coupled power generation technology or gasification coupledcombustion power generation technology,the mainstream direction for the transformation of traditional thermal power plants is evident,given the minimal need for equipment upgrades and the high utilization rate of fuel resources. This paper start from the biomass resourcesand utilization in China,systematically reviews the current research status of biomass and the direct coupled combustion,as well as thegasification coupled combustion,with the focus on the research on emissions of pollutants,ash accumulation,slagging,and corrosionaspects. Further,we summarize the existing engineering project at home and abroad,and make an evaluation of the future developmenttrend of this technology is evaluated. This work will provide theoretical support for the low-carbon transformation of the thermal powerindustry.

王光磊(1988—),男,山东莱芜人,高级工程师。E-mail:wangguanglei@sdepci.com

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WANG Guanglei,SUN Linggang,ZHAO Chuanjin,et al. Research advancements in co-firing of coal powder andbiomass[J].Clean Coal Technology,2025,31(1):1−24.