摘要
在STA409型热重-红外联用分析仪上进行了桦甸油页岩的燃烧特性实验,得到了升温速率为20℃/min时,颗粒粒度分别为75.66μm、110.05μm、200.21μm和290.40μm的油页岩的燃烧TG、DTG和DSC曲线,分析了油页岩的燃烧特性及规律。结果表明:油页岩的燃烧是分两步进行的,油页岩在低温段的燃烧以挥发分的燃烧为主;随着颗粒粒度的减小,油页岩的燃烧特性趋好;而高温段主要是有机质、固定碳等难于分解的物质开始燃烧。利用Freeman-Carroll法得到了油页岩在不同阶段的热解反应动力学参数。
Making use of a STA409 thermogravimetric analyzer （TG） coupled with a Fourier-Transform Infrared （FTIR） spectrometer, combustion properties of Huadian oil shale of 75.66μm, 110.05μm and 290.40 μm grain sizes were studied under 20℃/min heating rate condition. Corresponding TG, DTG and DSC curves were then subsequently obtained and combustion properties analyzed. Results show that the oil shale combustion process may generally be divided into two stages： in the low temperature stage, combustion, mainly concerning volatiles, improves with reducing grain size; while in the high temperature stage, substances hard to decompose, such as organic matter, fixed carbon etc, start to burn. By the Freeman-Carroll method, the kinetic pyrolytic parameters of oil shale, in the different reaction stages, were ascertained.
出处
《动力工程》
EI
CSCD
北大核心
2007年第4期640-644,共5页
Power Engineering
基金
国家自然科学基金资助项目(NO.50476021)
关键词
能源系统工程
油页岩
燃烧特性
颗粒粒度
energy system engineering
oil shale
combustion property
grain size
