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2014 Vol.51, Issue 1 Preview Page

Review

Upgrading Technologies of Low Rank Coal; A Review

저등급 석탄의 고품위화 기술 현황

정문영·유경근

Moonyoung Jung and Kyoungkeun Yoo

28 February 2014. pp. 116-129
PDF Citation
Abstract
The development for processing technologies of low rank coal such as lignite and subbituminous coal, which has disadvantages such as non-agglomerating property, low calorific value according to high inherent moisture content, susceptibility to spontaneous combustion, was required to establish the energy resources system, which could guarantee the stable development of domestic industries of Korea, importing more than 97% energy resources. In the present article, the developing direction of domestic upgrading technologies for low rank coal was suggested by summarizing the properties of low rank coal and by categorizing the processing technologies of low rank coal into advanced coal cleaning technologies, coal surface modification technologies, and ultra clean coal technologies.
Keywords
Low rank coal
Lignite
Subbituminous coal
Upgrading technologies
에너지자원의 97%를 수입에 의존하고 있는 우리나라 산업의 지속적인 발전을 담보할 에너지자원확보시스템 구축을 위해 점결성이 없고, 수분함량이 높아 발열량이 낮으며, 자연발화되기 쉬워 활용이 어려운 갈탄 및 아역청탄 등 저등급 석탄의 활용기술 개발이 필수적이다. 이 글에서는 저등급 석탄의 특성을 정리하고 저등급 석탄의 고품위화를 위한 기술을 고도선탄기술, 표면개질기술, 초청정석탄 생산기술로 분류･요약하여 국내 저등급 석탄 처리기술의 개발방향을 제시하고자 하였다.
키워드
저등급 석탄
갈탄
아역청탄
고품위화 기술
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Information
  • Publisher :The Korean Society of Mineral and Energy Resources Engineers
  • Publisher(Ko) :한국자원공학회
  • Journal Title :Journal of the Korean Society of Mineral and Energy Resources Engineers
  • Journal Title(Ko) :한국자원공학회지
  • Volume : 51
  • No :1
  • Pages :116-129
  • DOI :https://doi.org/10.12972/ksmer.2014.51.1.116
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