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Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received August 31, 2006
Accepted November 24, 2006

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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High temperature air-blown gasification of Korean anthracite and plastic waste mixture

Young-Chan Choi^† Jae-Goo Lee Jae-Ho Kim Tae-Jun Park¹ Jae-Ho Kim²

Korea Institute of Energy Research, Daejeon 305-343, Korea ¹Korea Institute of Science and Technology Information, Daejeon 305-606, Korea ²Korea Coal Corporation, Seoul 121-833, Korea

Korean Journal of Chemical Engineering, July 2007, 24(4), 706-710(5), 10.1007/s11814-007-0030-x

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Abstract

Korean anthracite is too high in ash contents and low in calorific value to be used as an industrial energy source, the demand for anthracite has rapidly decreased and its competitiveness weakened. To overcome the problem, a mixture of Korean anthracite and plastic wastes low in ash and high in calorific value was manufactured. A 1.0T/D fixed bed gasification process was developed to understand the gasification characteristics of the mixtures and secure operation technology using Korean and Chinese anthracite. For the Korean anthracite, the syngas composition and heating value are varied from 10 to 20% and from 300 to 800 kcal/Nm3 as a function of steam/air/fuel ratio. Therefore, it is concluded that Korean anthracite is hard to gasify because of low reactivity. For the Chinese anthracite low ash content and higher heating value than domestic anthracite, the syngas composition was maintained at about 20-40% and the calorific value was 800-1,300 kcal/Nm3. A reformer using high-temperature air/steam was installed just after the gasifier to combust and convert tar and soot into syngas. We confirmed that the amount of generated tar and soot showed a salient difference after running the reformer. In the future, gasification experiments of manufactured mixtures of anthracite and plastic waste using 1.0T/D fixed bed gasifier will be performed.

Keywords

Korean Anthracite Fixed Bed Gasifier Syngas Calorific Value

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