分解炉用无烟煤的催化燃烧研究

在无烟煤中添加CuO,Fe2O3,MnO2,可以不同程度的改善无烟煤的着火温度;通过燃烧产物的XRD分析,探讨了催化剂催化燃烧的机理:催化剂在煤粉燃烧过程中参与了无烟煤燃烧中的化学反应过程,对无烟煤中难燃的碳发生了催化燃烧反应,使无烟煤着火温度下降。 Compared with soft coal,anthracite is not used for froducing cement in rotary kiln or in precalciner as its higher ignition temperature and more time to burn out.In order to widen its selective range of coals in cement kiln.,the article studies the anthracite used in precalciner.CuO,Fe2O3,MnO2 as the catalyst were selected and discussed the influence of different kinds of catalysts and their content on the ignition temperature of coal which studied by combustion analysis,TG-DTG.The result indicated that: CuO,Fe2O3,KMnO4,MnO2 added in the anthracite may reduce the ignition temperature of the anthracite in varying degree.The XRD analysis of combustion product showed that the catalyses which were used in the tests play the major role in the combustion.The catalysed take part in the chemical reactions of the burning.The catalysts have had the catalysed combustion with the carbon in the coal during the firing process which caused reducing of the ignition temperature of anthracite