科研之友
微信
新浪微博
Facebook
分享链接
摘要
The combustion characteristics of phoenix tree's leaves and their pyrolytic carbon and hydrothermal carbon at different heating rates(10, 20 and 30℃/ min) were studied by thermogravimetric analysis. The distributed Coats-Redfern(modified) method was used to analyze the fuel combustion process. The optimal reaction order(n) and the activation energy(E) were calculated by programming and the result is compared with that of Coats-Redfern method. The results showed that the DTG curves of phoenix tree's leaves and their hydrothermal charcoal showed 4 peaks but the pyrolytic carbon showed 3 peaks. When the heating rate was 20 ℃/min, the intergrated combustion characteristic index of the pyrolytic carbon decreased by 85% compared with that of the phoenix tree's leaves, while the hydrothermal carbon decreased only 18%. Hydrothermal carbon is more suitable for fuels. It's found that the activation energy distribution of the combustion process is in the form of 'N'. The activation energy in the low temperature combustion zone was higher and the activation energy in the high temperature combustion zone was lower. ? 2019, Editorial Board of Acta Energiae Solaris Sinica. All right reserved.
- 单位
