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Experiment Research on Gasification Character of Pulve-rized Coal at Medium Temperature

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DOI: 10.4236/epe.2013.54B062    2,799 Downloads   3,702 Views   Citations

ABSTRACT

In this paper, effect of gasification temperature and residence time on gasification characteristics of typical pulverized coals under atmosphere pressure were studied on a one-dimensional electric heating drop tube furnace system to evaluate gasification characteristics of pulverized coal at medium temperature. The results show that the gasification rate increases with the raising of the gasification temperature under the temperature among 1150and1450, and as the temperature is above1350, the increasing rate become slower. Cold gas efficiency and carbon conversion meet the maximum value when the temperature approaches the ash fusion point of coal. With the further rise of the temperature, ash on the surface of the char starts to be melted, the gasification reaction rate decreases, due to the hindrance of the effective contact between coal char and gasification agent. The gasification efficiency would become steady when the residence time exceeds 8s.

Cite this paper

T. Lou, Z. Zhang, J. Fan, H. An, Z. Zhou and P. Yue, "Experiment Research on Gasification Character of Pulve-rized Coal at Medium Temperature," Energy and Power Engineering, Vol. 5 No. 4B, 2013, pp. 315-318. doi: 10.4236/epe.2013.54B062.

Conflicts of Interest

The authors declare no conflicts of interest.

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