CAJ | 학술논문

采用热重红外联用( TG-FT-IR)技术考察了油茶壳的热解规律,并选择2种无机制函数积分法Kissinger-Akahira-Sunose( KAS)法和Flynn-Wall-Ozawa( FWO)法探讨油茶壳热解动力学。结果表明：油茶壳的热解过程可分为4个阶段：脱水、半纤维素热解、纤维素热解和木质素的二次热解。热解挥发分主要有H2 O、CO2、CO和CH4,以及一些醛类、酸类、酮类有机物,且热解温度不同各组分的含量不同。 KAS法和FWO法计算出的油茶壳热解活化能基本一致,均随着转化率的增大而增加。
채용열중홍외련용( TG-FT-IR)기술고찰료유다각적열해규률,병선택2충무궤제함수적분법Kissinger-Akahira-Sunose( KAS)법화Flynn-Wall-Ozawa( FWO)법탐토유다각열해동역학。결과표명：유다각적열해과정가분위4개계단：탈수、반섬유소열해、섬유소열해화목질소적이차열해。열해휘발분주요유H2 O、CO2、CO화CH4,이급일사철류、산류、동류유궤물,차열해온도불동각조분적함량불동。 KAS법화FWO법계산출적유다각열해활화능기본일치,균수착전화솔적증대이증가。
Pyrolysis of camellia shell was studied by using thermogravimetric analyzer coupled with Fourier transform infrared spectroscopy( TG-FT-IR) . The activation energies of camellia shell pyrolysis depending on the conversion rate were calculated by two Model-free methods, namely Kissinger-Akahira-Sunose ( KAS ) and Flynn-Wall-Ozawa ( FWO ) , respectively. The results indicated that the pyrolysis process of camellia shell was divided into four stages, i. e. , dehydration, decomposition of hemicellulose,decomposition of cellulose and the secondary degradation of lignin. The main components of volatiles were H2 O, CO2 ,CO,and CH4 ,along with kinds of organics,such as aldehydes,acids and ketones. The content of each component at different pyrolysis temperatures was different. The activation energies of camellia shell pyrolysis estimated by KAS and FWO were similar. They rose with the increase of the conversion rate.