Citation: Qun CHEN, Rong HE, Zhan Gang LIANG, Xu Chang XU, Chang He CHEN. A Model-based Phenomenological Investigation of Char Combustion Kinetics through Thermogravimetry[J]. Chinese Chemical Letters, ;2005, 16(3): 393-396. shu

A Model-based Phenomenological Investigation of Char Combustion Kinetics through Thermogravimetry

Department of Thermal Engineering, Tsinghua University, Beijing 10084

Received Date: 9 February 2004

Fund Project: The work was subsidized by the Special Funds for Major State Basic Research Projects (973), project number G1999022205.

Five coal char samples were burnt in thermobalance with ramp heating rate of 30 K/min.The pore structure of these char samples was studied through mercury intrusion method.Combined with the kinetic theory of gases, the data of surface area was used in fitting the results.As a result, the kinetic triplet was given. The analysis showed that five char samples share almost the same intrinsic activation energy of the overall reaction. The phenomenological implication of the derived combustion rate equation was given.
- Thermogravimetry,
- activation energy,
- pre-exponential factor,
- kinetic model function,
- char combustion.
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