Influence of Fe2O3 and Atmosphere on Crystallization Characteristics of Synthetic Coal Slags
作者： Weiwei Xuan , Kevin J. Whitty , Qingliang Guan , Dapeng Bi , Zhonghua Zhan
DOI: 10.1021/EF5020633
关键词:
摘要: Crystallization in the molten slag of entrained-flow coal gasifiers can increase its viscosity and affect flow layer along wall. The chemical composition plays an important role crystallization behavior crystal characteristics. aim work reported here is to study influence Fe2O3 on tendency. Six synthetic slags with different concentrations, ranging from 5 30 wt %, were investigated using differential scanning calorimetry (DSC) single hot thermocouple technique (SHTT). In addition, three reduced a 60:40 CO/CO2 atmosphere, their characteristics compared original slags. time–temperature–transformation (TTT) diagrams for each constructed. Kissinger method was used calculate activation energy based DSC results under cooling conditions, Johnson–Mehl–Avrami (JMA) equation applied mechanisms isother...
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