Thermogravimetric,kinetic study and gas emissions analysis of the thermal decomposition of waste-derived fuels  

作　　者：Vadim V.Dorokhov Galina S.Nyashina Pavel A.Strizhak 

机构地区：[1]Heat and Mass Transfer Laboratory,National Research Tomsk Polytechnic University,30 Lenin Avenue,Tomsk 634050,Russia

出　　处：《Journal of Environmental Sciences》2024年第3期155-171,共17页环境科学学报（英文版）

基　　金：supported by a grant from the Ministry of Science and Higher Education of Russia,Agreement No 075-152020-806 (Contract No 13.1902.21.0014)。

摘　　要：A wide range of wastes can potentially be used to generate thermal and electrical energy.The co-combustion of several types of waste as part of water-containing waste-derived fuels is a promising method for their recovery.In this research,we use thermogravimetric analysis and differential scanning calorimetry to study the thermal behavior and kinetics of coal slime,biomass,waste oils,and blends on their basis.We also analyze the concentrations of gaseous emissions.The results show that biomass,oils,and coal slime significantly affect each other in the course of their co-combustion when added to slurry fuels.The preparation of coal-water slurry based on slime and water reduced the ignition and burnout temperature by up to 16%.Adding biomass and waste oils additionally stimulated the slurry ignition and burnout,which occurred at lower temperatures.Relative to dry coal slime,threshold ignition temperatures and burnout temperatures decreased by 6%–9%and 17%–25%,respectively.Also,the use of biomass and waste oils as part of slurries inhibited NOхand SO_(2)emission by 2.75 times.According to the kinetic analysis,added biomass and waste turbine oil provide a 28%–51%reduction in the activation energy as compared to a coal-water slurry without additives.

关 键 词：Coal-water slurry Water-containing composite fuels Combustion Emission KINETIC TGA-DSC 

分 类 号：X705[环境科学与工程—环境工程]