1. Influence of geological variations on lignite drying kinetics in superheated steam atmosphere for Belchatow deposit located in the central Poland
- Author
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Akira Hashimoto, Taro Akiyama, Naoki Shikazono, Janusz S. Szmyd, Shinji Kimijima, Shozo Kaneko, Marcin Zakrzewski, Yoshinori Kobayashi, Anna Sciazko, and Yosuke Komatsu
- Subjects
Energy carrier ,Waste management ,Renewable Energy, Sustainability and the Environment ,020209 energy ,Superheated steam ,lcsh:Mechanical engineering and machinery ,Kinetics ,lignite upgrading ,lignite drying ,02 engineering and technology ,low-rank coal ,Atmosphere ,Electricity generation ,lignite ,Combustion process ,0202 electrical engineering, electronic engineering, information engineering ,Environmental science ,superheated steam drying ,lcsh:TJ1-1570 ,Coal power plant ,Water content - 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.
- Published
- 2016