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The Design Conditions and the Initial Operation Results of 1 Ton/Day Class Dry Feeding Coal-Gasification System  

Seo, Hai-Kyung (Korea Electric Power Research Institute)
Chung, Jae-Hwa (Korea Electric Power Research Institute)
Ju, Ji-Sun (Institute for Advanced Engineering Ajou Univ.)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.20, no.4, 2009 , pp. 352-359 More about this Journal
Abstract
KEPRI is developing a Korean type coal-gasification system and the scale is 20 ton/day. Prior to this pilot plant, a 1 ton/day class gasification system will be used for pre-testing of several coal types. This paper introduces the configuration and design conditions of this 1 ton/day class system, presenting the gas/coal ratio, oxygen/coal ratio, cold gas efficiency, CFD analysis of gasifier, and others. The existing combustion furnace for residual oil was retrofitted as a coal gasifier and a vertical and down-flow type burner was manufactured. Ash removal is carried out through a water quencher and a scrubber following the quencher, and the sulfur is removed by adsorption in the activated carbon tower. The gas produced from the gasifier is burned at the flare stack. In this paper, the results of design conditions and initial operation conditions of I ton/day gasification system are compared together.
Keywords
IGCC; Gasifier; Quencher; Scrubber; Cold gas efficiency; CFD(computational fluid dynamics);
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