Influence of geological variations on lignite drying kinetics in superheated steam atmosphere for belchatow deposit located in the central Poland

Anna Sciazko, Yosuke Komatsu, Marcin Zakrzewski, Taro Akiyama, Akira Hashimoto, Naoki Shikazono, Shozo Kaneko, Shinji Kimijima, Janusz S. Szmyd, Yoshinori Kobayashi

Research output: Contribution to journalArticle

Abstract

Lignite-fired coal power plants suffer from a significant heat loss due to the high moisture content in this energy carrier. Water removal from fuel is an indispensable treatment for improving the combustion process, which will foster the efficient utilization of lignite. Superheated steam fluidized bed drying is expected for this purpose in a power generation sector. Understanding drying kinetics of lignite will greatly reinforce design process of a dryer. Physical features as well as the drying behaviour may be divergent among the lignite originated from different depths and positions in a certain mine. To reveal and clarify the influence of the geological features, the drying characteristics of several grades of lignite from the Belchatow mine in Poland were investigated. The attempts to clarify the influence of the divergent properties of the investigated samples on the drying kinetics in superheated steam were presented in this paper.

Original languageEnglish
Pages (from-to)1185-1198
Number of pages14
JournalThermal Science
Volume20
Issue number4
DOIs
Publication statusPublished - 2016

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Keywords

  • Lignite
  • Lignite drying
  • Lignite upgrading
  • Low-rank coal
  • Superheated steam drying

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment

Cite this

Sciazko, A., Komatsu, Y., Zakrzewski, M., Akiyama, T., Hashimoto, A., Shikazono, N., ... Kobayashi, Y. (2016). Influence of geological variations on lignite drying kinetics in superheated steam atmosphere for belchatow deposit located in the central Poland. Thermal Science, 20(4), 1185-1198. https://doi.org/10.2298/TSCI151111107S