Thermogravimetric analyses of combustion of lignocellulosic materials in N2/O2 and CO2/O2 atmospheres.
The combustion of paper, fruit waste and plant residue mixtures representing the lignocellulosic materials of municipal solid waste (MSW) in different atmospheres (80N(2)/20O(2), 70N(2)/30O(2), 60N(2)/40O(2), 50N(2)/50O(2), 80CO(2)/20O(2), 70CO(2)/30O(2), 60CO(2)/40O(2), 50CO(2)/50O(2)) was analyzed thermogravimetrically. Replacement of 80% N(2) by 80% CO(2) resulted in a slightly later ignition, a lower maximum weight loss rate and a change in reactions occurring above 600°C; however, as the oxygen concentration increased from 20% to 50% in CO(2)/O(2) atmosphere, the ignition temperature decreased from 318.5 to 310.8°C and the maximum weight loss rate increased from 20.82% to 23.57%/min. An oxygen content of 30% in the CO(2)/O(2) atmosphere achieved a similar combustion performance as a 80N(2)/20O(2). The fruit waste mixture had the least residual weight (about 5%) and the earliest ignition (about 220°C). This work contributes to the comprehensive understanding of lignocellulosic materials combustion and development of MSW oxy-fuel combustion.
School of Electric Power, South China University of Technology, Guangzhou 510640, China. laizhiyi@gmail.com
ZhiYi
Z
Lai
XiaoQian
X
Ma
YuTing
Y
Tang
Hai
H
Lin
Yong
Y
Chen
D002245:Carbon Dioxide / Q000737:chemistry*; D006358:Hot Temperature; D007700:Kinetics; D008031:Lignin / Q000737:chemistry*; D009584:Nitrogen / Q000737:chemistry*; D010100:Oxygen / Q000737:chemistry*; D013818:Thermogravimetry
C036909:lignocellulose; D002245:Carbon Dioxide; D008031:Lignin; D009584:Nitrogen; D010100:Oxygen