Effect of internal diffusion on steam gasification reactivity of coal and petroleum coke

LIN Shan-jun; ZHOU Zhi-jie; HUO Wei; DING Lu; YU Guang-suo

Volume 42 Issue 08

Aug. 2014

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LIN Shan-jun, ZHOU Zhi-jie, HUO Wei, DING Lu, YU Guang-suo. Effect of internal diffusion on steam gasification reactivity of coal and petroleum coke[J]. Journal of Fuel Chemistry and Technology, 2014, 42(08): 905-912.

Citation:

LIN Shan-jun, ZHOU Zhi-jie, HUO Wei, DING Lu, YU Guang-suo. Effect of internal diffusion on steam gasification reactivity of coal and petroleum coke[J]. Journal of Fuel Chemistry and Technology, 2014, 42(08): 905-912.

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Effect of internal diffusion on steam gasification reactivity of coal and petroleum coke

Key Laboratory of Coal Gasification and Energy Chemical Engineering of Ministry of Education, East China University of Science & Technology, Shanghai 200237, China

Received Date: 2014-01-15
Rev Recd Date: 2014-03-28
Publish Date: 2014-08-30

Abstract

Abstract

The steam gasification experiments with Neimeng lignite, Shenfu bituminous coal, Zunyi anthracite and a petroleum coke were conducted in a thermogravimetric analyzer (TGA) to study the intrinsic kinetics and the macrokinetics with the effects of particle size. By virtue of gas-solid catalysis theory, a method to calculate the internal effective factor was proposed based on the kinetic parameters derived from the nth-order equation. The comparison between calculated and experimental effective factors shows that the method is better to calculate the internal effective factor for quantificationally estimating the effect of internal diffusion on steam gasifiation.
- gasification reactivity,
- steam,
- internal diffusion,
- Thiele modulus,
- effective factor

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References(18)

References

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