Pyrolysis Characteristics and Kinetics of Low Rank Coal

Yong Hui Song; Jian Mei She; Xin Zhe Lan; Jun Zhou

doi:10.4028/www.scientific.net/MSF.695.493

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HomeMaterials Science ForumMaterials Science Forum Vol. 695Pyrolysis Characteristics and Kinetics of Low Rank...

Pyrolysis Characteristics and Kinetics of Low Rank Coal

Abstract:

The pyrolysis characteristics of Jianfanggou(JFG) coal was studied using a thermo-gravimetric analyzer and the pyrolysis kinetic parameters were calculated at the different heating rate. The results showed the DTG curves under different heating rate had three peaks and the corresponding temperature were 100°C, 470°C and 750°C, the pyrolysis process can be divided into three stages conclusively. The maximum weight loss rate at 470°C indicated the major weight loss occurred in the second stage. The T_b, T_f and T_∞ obtained under experiment situation. The results of the JFG coal pyrolysis kinetic showed the T_b, T_f and T_∞ increased gradually with the accretion of the heating rate. In the meantime, the variation of frequency factor was consistent with the trend of activation energy.

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Periodical:

Materials Science Forum (Volume 695)

Pages:

493-496

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.695.493

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Online since:

July 2011

Authors:

Yong Hui Song, Jian Mei She, Xin Zhe Lan, Jun Zhou

Keywords:

Heating Rate, Kinetic, Low Rank Coal, Thermo Gravimetric Analysis (TGA)

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