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| Study on characteristics of slag from multi-material slurry gasifier in Gansu Huating |
| Shang Yingying1, Wang Xingang2, Wang Xiaomei1 |
1. Department of Biological Chemical Engineering, Pingliang Vocational and Technical College, Pingliang 744000, China;
2. Gansu Huating Coal Methanol Company, Huating 744001, China |
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Abstract It is very important to understand the characteristics of coal gasification slag for developing the conversion and utilization technology of coal gasification slag. Therefore, In order to analyze the chemical composition, microstructure and mineral composition of gasifier slag, the slag produced by Gansu Huating medium-low metamorphic coal in multi-materialslurry gas gasifier was taken as the main research object, the chemical composition, mineral composition, microstructure and microscopic structure of the samples were analyzed in detail and studied by mean of X-Ray Fluorescence,Scanning electron microscopy, X-ray diffraction,electron microscope and other technical means. The results show that the main chemical composition of the slag from Multi-feed slurry gas gasifier in huating were SiO2, Al2O3, Fe2O3, CaO and residual carbon. The micromorphology of the sample is porous with spherical vitreous bodies and different sizes of residual carbon. The petrographic composition of the samples is mainly quartz with trace amounts of carbon and calcite, which can be used as admixture of concrete.
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