Entity

Time filter

Source Type


Teng Y.-Y.,Inner Mongolia University of Technology | Teng Y.-Y.,Inner Mongolia Key Laboratory of Industrial Catalysis | Song Y.-M.,Inner Mongolia University of Technology | Song Y.-M.,Inner Mongolia Key Laboratory of Industrial Catalysis | And 11 more authors.
Meitan Xuebao/Journal of the China Coal Society | Year: 2015

Shengli lignite was pyrolyzed under 650℃ in a fixed-bed reactor. Fusinitic coal (containing 73.40% inertinite) and xyloid coal (containing 98.67% huminite) were separated under semi-coke using optical microscope. The combustion reactivity, in terms of combustion parameters such as ignition index, burn out index, was calculated by thermogravimetric analysis. The combustion kinetics of both fusinitic coal and xyloid coal were regressively calculated. The results show that fusinitic coal and xyloid coal possess porous structure and compact structure respectively. The specific surface area of fusinitic coal is 21 times larger than that of xyloid coal. The combustion reactivity of fusinitic coal is much higher than that of xyloid coal in the "burn out" condition. Both the homogeneous and the shrinking core model can regressively fit the combustion processes of fusinitic coal and xyloid coal accurately. The activation energy of fusinitic coal is much lower than that of xyloid coal, which is the essential reason for higher combustion reactivity of fusinitic coal. ©, 2015, China Coal Society. All right reserved. Source

Discover hidden collaborations