Thermal decomposition analysis of coal-waste sludge and coal-sunflower seed husk blends |
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| Authors: | WANG Shu-yan LI Xiao-qi LIU Wen-tie SONG Cheng-yi WANG Chun-sheng DONG Qun |
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| Affiliation: | [1]School of Petroleum Engineering,Northeast Petroleum University,Daqing 163318,China [2]School of Energy Science and Engineering,Harbin Institute of Technology,Harbin 150001,China [3]Daqing Oil Field Design Institute,Daqing 163459,China [4]School of Chemistry and Chemical Engineering,Northeast Petroleum University,Daqing 163318,China |
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| Abstract: | The thermal decomposition analysis of coal-pharmaceutical waste sludge,coal-sewage waste sludge blends and coal-sunflower seed husk blends are studied by TG dynamic runs at the heating rate of 20 ℃/min within the temperature range of 25 ℃-900℃.The effect of different kinetic models on the determination of kinetic parameters of thermal decompesition has been investigated.Results show that for coal-pharmaceutical sludge blend,coal-sewage sludge blend and coal-sunflower seed husk blend the optimal model functions are the three-dimensional diffusion reaction,2-dimensional and 3-diemensional nucleation and growth reactions,respectively.The Arrhenius kinetic parameters of the pre-exponential factor and activation energy of blends,as well waste sludge and sunflower seed husk only are proposed. |
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| Keywords: | pyrolysis coal-waste sludge blends thermogravimetric analysis model function kinetic parameters |
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