CAJ | 학술논문

为研究升温速率、气氛和粒径对玉米秸秆热解特性的影响规律，在TA-Q500型热重分析仪上进行了相应的热解实验。结果表明：随着升温速率的升高，玉米秸秆的热解速率与峰值温度均增大，总体热解反应过程更集中；氮气气氛下，玉米秸秆的热解DTG曲线仅有1个明显的失重峰，而空气气氛下则表现出明显的双峰，且氮气气氛下热解的总失重量小于空气气氛；随着玉米秸秆粒径的增大，热解的初始温度、峰值温度及终止温度均呈增大趋势，同时最大失重速率也略有增大，但变化并不明显。
위연구승온속솔、기분화립경대옥미갈간열해특성적영향규률，재TA-Q500형열중분석의상진행료상응적열해실험。결과표명：수착승온속솔적승고，옥미갈간적열해속솔여봉치온도균증대，총체열해반응과정경집중；담기기분하，옥미갈간적열해DTG곡선부유1개명현적실중봉，이공기기분하칙표현출명현적쌍봉，차담기기분하열해적총실중량소우공기기분；수착옥미갈간립경적증대，열해적초시온도、봉치온도급종지온도균정증대추세，동시최대실중속솔야략유증대，단변화병불명현。
To investigate the influence of heating rate,atmosphere and particle size on pyrolysis characteristics of corn stalk,experiments were conducted on a TA-Q500 thermogravimetric analy-zer.The results show that,with an increase in heating rate,the corn stalk's pyrolysis rate and the corresponding peak value increased,and the overall pyrolysis reaction became more concentrated;in nitrogen atmosphere,there was only one obvious weight loss peak on the DTG curve,while in air atmosphere,there exhibit two;the total weight loss in nitrogen atmosphere was less than that in the air atmosphere;with an increase in particle size,the initial,peak and final pyrolysis temper-ature of the corn stalk all increased,and the maximum weight loss rate also increased a little.