环境工程学报2025，Vol.19Issue(5)：1189-1201,13.DOI:10.12030/j.cjee.202405090
吡蚜酮废盐热解/燃烧特性及反应机理研究
Pyrolysis/combustion performance and reaction mechanisms analysis of pymetrozine waste salt
摘要
Abstract
To investigate the thermogravimetric behavior,thermal treatment products,and kinetics of pymetrozine waste salt,simultaneous thermal analysis(TG-DSC)and thermogravimetric analysis-Fourier transform infrared spectroscopy(TG-FTIR)were used.Thermogravimetric analysis revealed that the main stages of weight loss during pyrolysis and combustion of the waste salt reached 76％and 80％of the total weight loss,respectively.TG-FTIR analyses indicated that the gaseous products of pyrolysis of the waste salt were CO2,CH4 and esters.In contrast,the gaseous products of combustion were CO2 and esters.As the temperature increased,the composite pyrolysis index(CPI)and composite combustion index(CCI)also increased,thereby enhancing the pyrolysis and combustion performance of the waste salt.The mean activation energy of waste salt combustion was determined using the Kissinger and Ozawa methods to be 104.32 kJ·mol-1,which was lower than that of the pyrolysis process,106.41 kJ·mol-1.The Coats-Redfern method was employed to ascertain the reaction mechanism,and the optimal models for the five sub-stages in the main weight loss stages of pyrolysis and combustion were all nth-order reactions,indicating that the reaction rates of pyrolysis and combustion of the waste salt were mainly influenced by pollutant concentration.The relatively high reaction orders indicate that the concentration of organic compounds in the pymetrozine waste salt has a significant impact on the reaction rate.关键词
吡蚜酮废盐/热处理/动力学分析/资源化Key words
pymetrozine waste salts/thermal treatment/kinetic analysis/resource utilization分类
环境科学引用本文复制引用
马飞俊,李亚萍,屠学博,戎彦坤,张有贤..吡蚜酮废盐热解/燃烧特性及反应机理研究[J].环境工程学报,2025,19(5):1189-1201,13.基金项目
兰州大学中央高校基本科研业务费专项资金资助项目(lzujbky-2017-it103) （lzujbky-2017-it103）
