秸秆类生物质燃烧动力学特性实验研究

生物质能的利用越来越受到重视。直接燃烧技术由于其操作简单、取材方便、成本适宜等特点是一种符合我国国情的生物质能利用方式。采用热重分析的研究方法，对水稻秸秆、玉米秸秆和玉米芯三种秸秆类生物质的燃烧动力学特性进行了实验，研究了不同升温速率、氧浓度对不同种类的秸秆生物质燃料燃烧动力学特性的影响，并对着火温度、燃烧稳定性、挥发分析出特性、燃烧特性指数等相关特性参数进行定量分析，为设计秸秆工业锅炉燃烧设备，合理选择生物质种类、优化燃烧、提高锅炉效率提供了理论支撑。

Experimental study on the biomass combustion kinetics

The utilization of biomass energy has been receiving a growing attention worldwide and the direct combustion technology is a proper way for biomass utilization in China, because of its simple operation, convenient collection and suitable costs. Three types of biomass including rice straw, corn cob and corn straw are analyzed by the thermal gravimetric method for combustion kinetic characteristics. Effects of the heating rate and oxygen concentration on combustion kinetic characteristics are studied experimentally, and the ignition temperature, combustion stability, devolatilization, and combustion characteristics are analyzed. The results of the study provides a theoretical support to the design of biomass industrial boilers, reasonable selection of biomass types, optimization of combustion and improvement of boiler efficiency.