Experiment Research on Gasification Character of Pulve-rized Coal at Medium Temperature - Energy and Power Engineering

EPE > Vol.5 No.4, July 2013

Energy and Power Engineering

Volume 5, Issue 4 (July 2013)

ISSN Print: 1949-243X ISSN Online: 1947-3818

Google-based Impact Factor: 1.42 Citations

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

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Download as PDF (Size: 252KB) PP. 315-318

DOI: 10.4236/epe.2013.54B062 4,834 Downloads 6,027 Views Citations

Author(s)

Tong Lou, Zhong-xiao Zhang, Jun-jie Fan, Hai-quan An, Zhi-hao Zhou, Pu-jie Yue

Affiliation(s)

College of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, China.
College of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, China; School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, China.
School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, China.

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 1150℃and1450℃, 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.

KEYWORDS

Gasification Characteristic; Pulverized Coal; Carbon Conversion; Cold Gas Efficiency

Share and Cite:

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.

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