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利用热重分析仪对热-电-气-焦油多联产工艺中煤干馏半焦的燃烧特性进行了分析,采用可燃性指数Kr、燃烧特性指数S、燃烧稳定性指数RW、燃尽特性指数Cb及样品反应活化能考察了干馏温度对半焦燃烧特性的影响.结果表明:随着干馏温度的升高,半焦的着火性能、燃烧稳定性及总体燃烧性能变差,燃尽性能变佳,燃烧活化能增加;半焦的燃烧反应可用一级反应来描述,4种半焦的活化能在88.72~112.83 kJ/mol范围内.
The combustion characteristics of coal retort semi-coke in the process of heat-electricity-gas-tar polygeneration were analyzed by thermogravimetric analyzer. The combustibility index Kr, combustion index S, combustion stability index RW, burnout index Cb and sample reaction activation energy were investigated.The results showed that the ignition performance, combustion stability and overall combustion performance of semi-coke deteriorate with the increase of retort temperature, and the burnout performance becomes better , Combustion activation energy increased; semi-coke combustion reaction can be described by the first-order reaction, the activation energy of the four semi-coke in the 88.72 ~ 112.83 kJ / mol range.