烟煤与生物质混烧基础实验分析
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摘要
在给料方式为下部进料的美国Harman热风炉内进行了烟煤煤棒和生物质棒的燃烧实验,通过燃烧效果和污染物排放情况的特性对比,考察了两种燃料的优缺点;将不同比例的烟煤和生物质的混合样品在Netzsch热重分析仪中进行燃烧动力学分析;结果表明,生物质燃料的烟尘排放指标高于烟煤煤棒,二者的优缺点可以互补,烟煤中掺烧生物质可以提高燃烧效率,混合燃烧降低了反应活化能,着火温度和燃尽温度均前移;生物质燃料和烟煤按照合理配比混烧,可提高两种燃料的清洁高效利用水平。
The combustion experiments of bituminous coal briquette and biomass fuel briquette were carried out in an American Harman hot blast furnace with lower feeding.The advantages and disadvantages of the two fuels were investigated by comparing characteristics about combustion effects and pollutant discharges.Combustion kinetics analysis on mixed samples of bituminous coal and biomass fuel in different proportions was carried out in a Netzsch thermo gravimetric analyzer.The results show that the dust emission index of biomass fuel is higher than that of bituminous coal.The advantages and disadvantages of the two fuels can be complementary.The mixed combustion of bituminous coal and biomass fuel can improve the combustion efficiency of bituminous.The mixed combustion reduces the activation energy of reaction,and the ignition temperature and the burnout temperature are both advanced.Biomass fuel and bituminous coal can be mixed in a reasonable ratio to improve the clean and efficient utilization level of the two f fuels.
The combustion experiments of bituminous coal briquette and biomass fuel briquette were carried out in an American Harman hot blast furnace with lower feeding.The advantages and disadvantages of the two fuels were investigated by comparing characteristics about combustion effects and pollutant discharges.Combustion kinetics analysis on mixed samples of bituminous coal and biomass fuel in different proportions was carried out in a Netzsch thermo gravimetric analyzer.The results show that the dust emission index of biomass fuel is higher than that of bituminous coal.The advantages and disadvantages of the two fuels can be complementary.The mixed combustion of bituminous coal and biomass fuel can improve the combustion efficiency of bituminous.The mixed combustion reduces the activation energy of reaction,and the ignition temperature and the burnout temperature are both advanced.Biomass fuel and bituminous coal can be mixed in a reasonable ratio to improve the clean and efficient utilization level of the two f fuels.
引文
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