生物质烘焙预调质及其优化热解产物品质的研究进展  

Research progress on biomass torrefaction pre-conditioning and optimization of pyrolysis product quality

作　　者：陈颖[1] 刘鹏[1] 李艳玲 孙堂磊 雷廷宙 CHEN Ying;LIU Peng;LI Yanling;SUN Tanglei;LEI Tingzhou(National and Local Joint Engineering Research Center for Efficient Refining and High Quality Utilization of Biomass,Changzhou Key Laboratory of Green Safe and High Value Utilization Technology of Biomass,Institute of Urban and Rural Mining,Changzhou University,Changzhou 213164,Jiangsu,China)

机构地区：[1]常州大学城乡矿山研究院生物质高效炼制及高质化利用国家地方联合工程研究中心,常州市生物质绿色安全高值利用技术重点实验室,江苏常州213164

出　　处：《低碳化学与化工》2025年第2期69-77,共9页Low-Carbon Chemistry and Chemical Engineering

基　　金：国家重点研发计划(2022YFB4201901)。

摘　　要：生物质储量丰富,是有望代替化石能源并减少碳排放的绿色可再生能源,但其氧含量大、水分含量大且分散度高导致了研磨性差、储运困难等一系列问题,使之资源化利用难。综述了国内外烘焙预调质(以下简称“烘焙”)优化生物质及其热解产物品质的研究进展,着重阐明了烘焙可改善生物质理化性质以及优化热解产物品质,并总结了烘焙起到的减排节能作用。烘焙改善了生物质的研磨能、热值和活化能等,有助于烘焙后生物质能源性能达到燃料煤水平。经过烘焙结合热解处理的生物炭比表面积增大,孔隙结构变得复杂,生物油氧含量及酸性物质含量减小,热解气可燃组分含量增大,产物品质均得到优化。对该技术的发展提出了建议,并对其应用潜力进行了展望,指出烘焙结合热解技术是替代煤炭制备清洁油品、炭材料和合成气的重要热转化技术之一,同时通过烘焙生物质结合煤炭热转化利用,提升煤炭清洁利用水平,可实现未来工业流程的低碳再造,为我国实现“双碳”目标、振兴乡村以及保障能源安全提供技术支撑。Biomass is green renewable energy with abundant reserves and is expected to replace fossil energy to reduce carbon emissions.However,its high oxygen content,high moisture content and high dispersion lead to a series of problems such as poor grinding performance and difficult storage and transportation,making it difficult to use as resources.The research progress on torrefaction pre-conditioning technology(hereinafter referred to as“torrefaction”)to optimize the quality of biomass and its pyrolysis products at home and abroad was reviewed.It is emphasized that torrefaction can improve physicochemical properties of biomass and optimize the quality of pyrolysis products.The emission reduction and energy conservation effects of torrefaction were summarized.Torrefaction can improve the grinding energy,calorific value and activation energy of biomass,and help the energy characteristics of torrefied biomass to reach the level of fuel coal.The specific surface area of biochar after torrefaction combined pyrolysis increases,the pore structure becomes more complex,the contents of oxygen and acidic substance decrease,and the content of combustible components in pyrolysis gas increases,so the quality of products is improved.Suggestions were made for the development of this technology,and its potential applications were discussed.It is proposed that the torrefaction combined with pyrolysis technology can replace coal as one of the important thermal conversion technologies for preparing clean oil,carbon materials and syngas,and torrefaction biomass combined with thermal conversion and utilization of coal can improve the clean utilization level of coal,so as to realize the low-carbon reengineering of future industrial processes,and provide technical supports for China to achieve“carbon peaking and carbon neutrality”goals,revitalize rural areas and ensure energy security.

关 键 词：生物质 烘焙 热解 理化性质 产物品质 减排节能 

分 类 号：TK6[动力工程及工程热物理—生物能]