The surge in medical waste,fueled by the impact of COVID-19 and the influenza A virus,poses substantial challenges to waste treatment.Nevertheless,pyrolysis technology introduces a novel approach to the treatment of m...The surge in medical waste,fueled by the impact of COVID-19 and the influenza A virus,poses substantial challenges to waste treatment.Nevertheless,pyrolysis technology introduces a novel approach to the treatment of medical waste.This study investigated the pyrolytic characteristics,kinetics,thermodynamic parameters,volatile gases,and pyrolytic pathways of medical rubber gloves(MRGs)in a N2 atmosphere utilizing Thermal Gravimetric Analyzer(TGA),Thermogravimetric-Fourier transform infrared spectroscopy(TG-FTIR)and Pyrolysis gas chrogams-mass spectrometry(Py-GC/MS)analyses.Pyrolysis of MRG predominantly occurs between 284-501℃ and 613-701℃.The initial stage is the primary reaction phase,exhibiting an average activation energy of 339.77 kJ/mol,following the reaction order model(Fn).The second pyrolysis stage has an average activation energy of 236.93 kJ/mol and adheres to the geometric contraction model(Rn).The volatile products from MRG pyrolysis primarily comprise olefins,alkanes,and aromatic hydrocarbons.The olefins consist primarily of 1,2-pentadiene and D-limonene,while the alkanes include cyclopropane,cyclohexane,and 1,4-dimethyl.Aromatic compounds are chiefly benzene,toluene,and xylene.展开更多
基金financially supported by the LiaoNing Revitalization Talents Program(No.XLYC2008013)National Natural Science Foundation(No.U21A20142).
文摘The surge in medical waste,fueled by the impact of COVID-19 and the influenza A virus,poses substantial challenges to waste treatment.Nevertheless,pyrolysis technology introduces a novel approach to the treatment of medical waste.This study investigated the pyrolytic characteristics,kinetics,thermodynamic parameters,volatile gases,and pyrolytic pathways of medical rubber gloves(MRGs)in a N2 atmosphere utilizing Thermal Gravimetric Analyzer(TGA),Thermogravimetric-Fourier transform infrared spectroscopy(TG-FTIR)and Pyrolysis gas chrogams-mass spectrometry(Py-GC/MS)analyses.Pyrolysis of MRG predominantly occurs between 284-501℃ and 613-701℃.The initial stage is the primary reaction phase,exhibiting an average activation energy of 339.77 kJ/mol,following the reaction order model(Fn).The second pyrolysis stage has an average activation energy of 236.93 kJ/mol and adheres to the geometric contraction model(Rn).The volatile products from MRG pyrolysis primarily comprise olefins,alkanes,and aromatic hydrocarbons.The olefins consist primarily of 1,2-pentadiene and D-limonene,while the alkanes include cyclopropane,cyclohexane,and 1,4-dimethyl.Aromatic compounds are chiefly benzene,toluene,and xylene.
