The transformation and concentration of environmental hazardous trace elements during coal combustio

来源 :Journal of Coal Science & Engineering(China) | 被引量 : 0次 | 上传用户:tklsd
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Studied the content and distribution of 18 environmental hazardous trace elementsin the lignite, fatty coal, anthracite and its burnt products by combustion simulatingexpriment in the one-dismensinal boiler.The transformations and concentration of 18 traceelements during different coal combustion were discussed.The results show that there aresome content distribution of 18 hazardous trace elements in every burnt product, but thelaw of concentration and dispersion of every trace element during different coal combustionis very different.Experiment results indicate that the transformation and concentrationof trace elements during coal combustion are related to the element contents and occur-rencesof trace elements in raw coal, but are also affected by some man-made factorssuch as the combustion method of boiler, combustion temperature and atmosphere, thetype of precipitators and so on. Studied the content and distribution of 18 environmental hazardous trace elements in the lignite, fatty coal, anthracite and its burnt products by combustion simulatingexpriment in the one-dismensinal boiler. The transformations and concentration of 18 traceelements during different coal combustion were.The. Results show that there aresome content distribution of 18 hazardous trace elements in every burnt product, but the law of concentration and dispersion of every trace element during different coal combustion is very different. Experimental results indicate that the transformation and concentration of trace elements during coal combustion are related to the element contents and occur-rencesof trace elements in raw coal, but also also affected by some man-made factorssuch as the combustion method of boiler, combustion temperature and atmosphere, the type of precipitators and so on.
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