标题：Experimental Study on Super-heated Steam Drying of Lignite
作者：Shi, Yongchun; Li, Jie; Li, Xuanyou; Wu, Jing; Wu, Maogang; Li, Sheng; Wang, Hongyao; Zhao, Gaiju; Yin, Fengjiao
作者机构：[Shi, Yongchun; Wu, Jing] Shandong Univ, Sch Energy & Power Engn, Jinan 250100, Peoples R China.; [Shi, Yongchun; Li, Jie; Li, Xuanyou; Wu, Jing; Wu 更多
会议名称：International Conference on Energy, Environment and Sustainable Development (ICEESD 2011)
会议日期：OCT 21-23, 2011
来源：RENEWABLE AND SUSTAINABLE ENERGY, PTS 1-7
关键词：lignite; super-heated steam drying; drying kinetics; hot air drying;; drying curve; drying rate
摘要：This paper applies super-heated steam drying technology to improve the quality of lignite. A unique experimental system was built up. In order to obtain the optimum operation conditions, the drying kinetics was measured. The temperature range of super-heated steam was from 120 to 200 degrees C. The results showed that the drying process of super-heated steam drying of lignite can be well depicted by two stages, as a constant drying rate stage followed by a falling drying rate stage. The comparison of drying process to the hot air drying showed the superior advantages of super-heated steam drying on safety, drying capacity and energy conservation. Analysis shows the huge application potential of lignite in power plants by means of the super-heated steam drying.