Drying Characteristics of High Moisture Low Rank Coal using a Steam Fluidized-bed Dryer 


Vol. 20,  No. 3, pp. 321-329, Sep.  2014


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  Abstract

In this study, Indonesia low rank coal, which has moisture content of around 26%, is dried less than 5% by using a laboratory-scale (batch type) steam fluidized-bed dryer in order to produce the low-moisture, high rank coal. Normally, CCS(carbon capture and storage) process discharges CO2 and steam mixture gas around 100-150 ℃ of temperature after regeneration reactor. The final purpose of this research is to dry low rank coal by using the outlet gas of CCS process. At this stage, steam is used as heat source for drying through the heat exchanger and CO2 is used as fluidizing gas to the dryer. The experimental variables were the steam flow rate ranging from 0.3 to 1.1 kg/hr, steam temperature ranging from 100 to 130 ℃, and bed height ranging from 9 to 25 cm. The characteristics of the coal, before and after drying, were analyzed by a proximate analysis, the heating value analysis and particle size analysis. In summary, the drying rate of low rank coal was increased as steam flow rate and steam temperature increased and increased as bed height decreased.

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  Cite this article

[IEEE Style]

K. GY, R. YW, P. JH, S. D, B. DH, S. JS, R. HJ, P. J, "Drying Characteristics of High Moisture Low Rank Coal using a Steam Fluidized-bed Dryer," Clean Technology, vol. 20, no. 3, pp. 321-329, 2014. DOI: .

[ACM Style]

Kim GY, Rhee YW, Park JH, Shun D, Bae DH, Shin JS, Ryu HJ, and Park J. 2014. Drying Characteristics of High Moisture Low Rank Coal using a Steam Fluidized-bed Dryer. Clean Technology, 20, 3, (2014), 321-329. DOI: .

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pISSN : 1598 - 9712
eISSN : 2288 - 0690

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