Catalytic gasification kinetics of coal with steam at mid-temperature

WANG Xi-ming; WANG Xing-jun; CHEN Fan-min; LIU Hai-feng; YU Guang-suo; WANG Fu-chen

Volume 41 Issue 10

Oct. 2013

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Article Navigation > Journal of Fuel Chemistry and Technology > 2013 > 41(10): 1166-1172

WANG Xi-ming, WANG Xing-jun, CHEN Fan-min, LIU Hai-feng, YU Guang-suo, WANG Fu-chen. Catalytic gasification kinetics of coal with steam at mid-temperature[J]. Journal of Fuel Chemistry and Technology, 2013, 41(10): 1166-1172.

Citation:

WANG Xi-ming, WANG Xing-jun, CHEN Fan-min, LIU Hai-feng, YU Guang-suo, WANG Fu-chen. Catalytic gasification kinetics of coal with steam at mid-temperature[J]. Journal of Fuel Chemistry and Technology, 2013, 41(10): 1166-1172.

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Catalytic gasification kinetics of coal with steam at mid-temperature

1.
Key Laboratory of Coal Gasification and Energy Chemical Engineering of Ministry of Education, East China University of Science & Technology, Shanghai 200237, China;
2.
Shanghai Engineering Research Center of Coal Gasification, Shanghai 200237, China

Received Date: 2013-03-25
Rev Recd Date: 2013-05-02
Publish Date: 2013-10-30

Abstract

Abstract

The steam gasification kinetics of four different metamorphosed coals at mid-temperature (700~850℃) using potassium carbonate as catalyst was investigated with the isothermal thermogravimetric analysis under ambient pressure. The results show that the catalysis is greater for the high metamorphosed coal gasification. The integrated model and modified random pore model are good to correlate the relationships between carbon conversion and time for the case with potassium carbonate catalyst. However, the volumetric reaction model is poor in the fitting of data. The activity energy and pre-exponential factor were predicted from the modified random pore model. The activity energy of coal char catalytic gasification ranges from 90.317~167.861 kJ/mol. And there are compensation effects between reaction activity energy and pre-exponential factor.
- coal,
- catalytic gasification,
- steam,
- kinetics

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References(16)

References

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