Abstract The effect of KMnO4 on the combustion characteristics and kinetic behavior of semi-coke was studied by thermogravimetric analysis. When 6 wt% KMnO4 was added, the ignition temperature of semi-coke was the lowest. The apparent activation energy of semi-coke with different addition amount of KMnO4 was calculated by Coats–Redfern integration method, the apparent activation energy of semi-coke during combustion reaction first decreased and then increased with increase in KMnO4. When 6 wt% KMnO4 is added, the apparent activation energy is minimal. The apparent activation energy of semi-coke with 2 wt% KMnO4 added at different conversion rates was calculated using Flynn–Wall–Ozawa integration method. The results show that the apparent activation energy of semi-coke combustion decreases with the increase of conversion.

中文翻译：

---

KMnO4对半焦催化燃烧性能的影响

摘要 通过热重分析研究了KMnO4对半焦燃烧特性和动力学行为的影响。当添加 6 wt% KMnO4 时，半焦的着火温度最低。采用Coats-Redfern积分法计算了不同KMnO4添加量的半焦表观活化能，半焦在燃烧反应过程中的表观活化能随着KMnO4的增加先降低后升高。当添加 6 wt% KMnO4 时，表观活化能最小。使用 Flynn-Wall-Ozawa 积分方法计算了以不同转化率添加 2 wt% KMnO4 的半焦的表观活化能。结果表明，半焦燃烧的表观活化能随着转化率的增加而降低。