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Combustion and emission characteristics of low rank-coals utilized in Korea

Abstract

The use of low-rank coal (physical and combustion characteristics are different from those of high-rank coal) is rapidly expanding both in Korea and globally owing to economic constraints; fully understanding the impact of low-rank coal on combustion and emission processes is thus imperative. Observations from several studies on low-rank coal are reviewed in this paper; these studies were conducted at Pusan clean coal center (PC3) with entrained flow reactors (laminar flow reactor and drop tube furnace). This study provides several contributions to the analysis of the combustion and emission characteristics of low-rank coal. Such contributions include the establishment of a simplified prediction model of burning coal and analysis of the effect of particle size and environmental conditions. A numerical model that incorporates the chemical percolation devolatilization sub-model is also developed, and the effect of volatile matter and in-furnace blending method is investigated. Results obtained from analyzing low rank-coal and the developed models provide insights into the application of low-rank coal in power plants.

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Correspondence to Chung-Hwan Jeon.

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These authors made equal contributions as first author.

Recommended by Associate Editor Oh Chae Kwon

Yong-Gyun Kim received his B.S. (1987), M.S. (1989), and Ph.D. (2013) degrees from Pusan National University. Dr. Kim is currently an assistant professor at Silliman University, Philippines.

Byoung-Hwa Lee received his B.S. in Mechanical Engineering from Korea Maritime University in 2003. He received his Ph.D. degree from Pusan National University in 2011. Dr. Lee is currently a research fellow at Pusan Clean Coal Center in Pusan National University.

Chung-Hwan Jeon received his B.S. (1985), M.S. (1987), and Ph.D. (1994) degrees from Pusan National University. Dr. Jeon is currently a professor at the School of Mechanical Engineering in Pusan National University and is the current director of Pusan Clean Coal Center.

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Kim, YG., Lee, BH. & Jeon, CH. Combustion and emission characteristics of low rank-coals utilized in Korea. J Mech Sci Technol 27, 2857–2868 (2013). https://doi.org/10.1007/s12206-013-0734-2

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  • DOI: https://doi.org/10.1007/s12206-013-0734-2

Keywords

  • Low-rank coal
  • Combustion
  • Emission
  • Drop tube furnace
  • Laminar flow reactor