HUI Shien, LIANG Ling, LIU Changchun, et al. Effects of heating rate,atmosphere and particle size on corn stalk's pyrolysis characteristics[J]. Thermal power generation, 2014, 43(5): 59-64.
HUI Shien, LIANG Ling, LIU Changchun, et al. Effects of heating rate,atmosphere and particle size on corn stalk's pyrolysis characteristics[J]. Thermal power generation, 2014, 43(5): 59-64.DOI:
升温速率、气氛与粒径对玉米秸秆热解特性的影响
摘要
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。
Abstract
To investigate the influence of heating rate
atmosphere and particle size on pyrolysis characteristics of corn stalk
experiments were conducted on a TA-Q500thermogravimetric analyzer.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 temperature of the corn stalk all increased
and the maximum weight loss rate also increased a little.