Effect of KMnO 4 on catalytic combustion performance of semi-coke

Green Processing and Synthesis

article

Luyao Kou¹  Junjing Tang¹  Tu Hu¹  Baocheng Zhou⁴  Li Yang¹ 

[1] Yunnan Provincial Key Laboratory of Intensification Metallurgy, Kunming University of Science and Technology;State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization (Kunming University of Science and Technology);Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology;Kunming University of Science and Technology Design and Research Institute

关键词: semi-coke;    KMnO4;    combustion;    kinetic;   

DOI  :  10.1515/gps-2020-0057

来源: De Gruyter

【 摘 要 】

The effect of KMnO 4 on the combustion characteristics and kinetic behavior of semi-coke was studied by thermogravimetric analysis. When 6 wt% KMnO 4 was added, the ignition temperature of semi-coke was the lowest. The apparent activation energy of semi-coke with different addition amount of KMnO 4 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 KMnO 4 . When 6 wt% KMnO 4 is added, the apparent activation energy is minimal. The apparent activation energy of semi-coke with 2 wt% KMnO 4 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.

【 授权许可】

CC BY