SUPER-HEATED STEAM DRYING: AN INNOVATION OF CLEAN COAL TECHNOLOGY FOR LIGNITE
Lignite is a low rank coal which has the disadvantages of high volatile, high moisture content, high ash content, low ash fusion temperature, serious pollution and low utilization ratio and so on.If raw lignite is burned directly, the serious environment pollution will generate and the construction and running costs of the electric power plant will increase.Drying and upgrading of lignite gain more interests in present due to the increased energy demand.A lot of disadvantages such as high energy consumption, high investment and poor safety exist in the lignite drying when using the traditional thermal drying, so the superheated steam drying technology for lignite is put forward.The small-scale experimental research and pilot-scale test research of the super-heated steam drying and hot air drying for lignite were carried out, and the results show that the drying efficiency of the super-heated steam is higher than the hot air at given conditions.A more innovative approach as a new lignite Super-heated steam Fluid bed low-rank Coal Upgrading (SFCU) is proposed by Energy Conservation Research Center of Shandong Academy of Sciences.The comparison between the superheated steam technology and the traditional thermal drying technology has been done and the results show the superheated steam drying technology has the advantages of low energy consumption, high safety and energy saving.In a word, the exploitation of the super-heated steam drying technology for lignite can promote the development of the energy and power industry, and this technology will have a great potential application.
lignite super-heated steam drying clean coal technology safety energy-saving
Sheng LI Bin JIANG Yongchun SHI Jie LI Wenxue DONG Jian XU Hong ZHANG Jun YANG Fuxiang CHEN
Industrial Energy Conservation Research Center of Shandong Academy of Sciences,Jinan,China Shanghai Electric Power Co.,Ltd of China Power Ivestment Corporation,Shanghai,China Jiutai Power Plant of China Huaneng Group,Changchun,China
国际会议
The 7th Asia-Pacific Drying Conference(第七届亚太地区干燥会议 ADC2011)
天津
英文
1-11
2011-09-18（万方平台首次上网日期，不代表论文的发表时间）