Thermogravimetric analysis of coal and sludge co-combustion with microwave radiation dehydration |
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| Affiliation: | 1. State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, Zhejiang, China;2. Zhejiang Hisun Pharmaceutical Co. LTD, Taizhou 318000, China;1. Department of Applied Chemistry and Physics, IMARENABIO (Institute of Environment, Natural Resources and Biodiversity), Campus de Vegazana, University of León, 24071 León, Spain;2. Department of Chemistry and CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal;1. Key Laboratory of Efficient and Clean Energy Utilization of Guangdong Higher Education Institutes, South China University of Technology, Guangzhou 510640, China;2. Electric Power Research Institute of Guangdong Power Grid, Guangzhou 510600, China |
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| Abstract: | The combustion characteristics of the mixture of two kinds of drying sludge with the coal with different blending ratios were investigated. Their combustion characteristics such as ignition temperature, burnout temperature, combustion performance exponent were obtained. The optimum burning-out dilution and mixing proportion was found to be around 40% under the present test conditions by the analysis of the burn-out temperature and characteristic index. The results showed that combustion characteristics of microwave and hot-air drying sludge and their co-combustion characteristics with coal were similar. Volatile precipitation and combustion processes played a major role in the sludge combustion process during which the reaction mechanism equation of the two kinds of drying sludge were the same. |
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| Keywords: | Sewage sludge Microwave radiation Co-combustion Thermogravimetry |
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