生物质碳烟颗粒物生成机理研究进展

Progress on the formation mechanism of biomass soot particles

介绍了生物质燃烧过程中碳烟颗粒物的生成机理,主要包括生物质碳烟的各种生成路径,生物质碳烟生成的中间产物多环芳烃,以及中间产物多环芳烃生成碳烟,多环芳烃、反应气氛、反应压力及反应温度等对碳烟颗粒物生成的影响,生物质金属离子对碳烟生成及碳烟的成长过程等影响。总结了现有生物质碳烟生成机理研究的不足,并对碳烟中间产物,碳烟一次、二次生成机理以及影响碳烟生成量的各种因素等进行系统研究;采用量子化学理论、矩方法以及激光检测试验等方法来研究生物质碳烟的生成机理,并可借鉴燃煤碳烟生成机理及柴油碳烟生成机理的研究方法及试验等;从生物质碳烟生成的热力学及动力学机制、成核演变理论、影响机制及试验方面等,并从化学反应和工程热物理的角度,深入研究生物质燃烧过程中碳烟颗粒物的生成机理与碳烟核成长演变行为,得到合理的生物质碳烟生成机理,为控制并减少雾霾环境影响的实际工程应用提供理论与实践指导。

The formation mechanism of soot particles in biomass combustion was introduced.It mainly included the various formation routes of biomass soot particles,the intermediate product polycyclic aromatic hydrocarbons（ PAHs） of biomass soot particles,and the intermediate products polycyclic aromatic hydrocarbons to produce biomass soot particles.The influence of polycyclic aromatic hydrocarbons,reaction atmosphere,and reaction pressure and reaction temperature on the formation of soot,and the effect of metal ions on the formation of soot and soot growth process were analyzed.The shortcomings of the existing research on the formation mechanism of soot particles were summarized.The research of the intermediate products of biomass soot and the first and two formation mechanism of biomass soot,as well as the various factors of generation quantity of biomass soot should be systematically studied.formation mechanism of biomass soot was analyzed by using quantum chemical theory,moment and laser detection experiments,and it can learn from the formation mechanism of coal-fired soot and diesel soot formation mechanism and experiment research method.The formation mechanism of biomass soot should be discussed by the thermodynamics,dynamics theory,the evolution of nucleation,and the influencing mechanism. From the perspective of chemical reaction and engineering thermophysics,the evolution behavior of formation mechanism of soot particles and the growth behavior process of biomass soot nuclei can be deeply studied,and reasonable formation mechanism of biomass soot can be obtained.the.This study provides the theoretical and practical guidance for the practical engineering application of reducing the environmental impact of smog.