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期刊名称: DRYING TECHNOLOGY
Volume:27    Issue:3        Page:403-415
ISSN:0737-3937

Low-Rank Coal Drying TechnologiesCurrent Status and New Developments期刊论文

作者: Karthikeyan M Wu ZH Mujumdar AS
DOI:10.1080/07373930802683005

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页码: 403-415
被引频次: 191
出版者: TAYLOR & FRANCIS INC
期刊名称: DRYING TECHNOLOGY
ISSN: 0737-3937
卷期: Volume:27    Issue:3
语言: English
摘要: Despite their vast reserves, low-rank coals are considered undesirable because their high moisture content entails high transportation costs, potential safety hazards in transportation and storage, and the low thermal efficiency obtained in combustion of such coals. Their high moisture content, greater tendency to combust spontaneously, high degree of weathering, and the dusting characteristics restrict widespread use of such coals. The price of coal sold to utilities depends upon the heating value of the coal. Thus, removal of moisture from low-rank coals (LRC) is an important operation. Furthermore, LRC can be used cost effectively for pyrolysis, gasification, and liquefaction processes. This article provides an overview the diverse processesboth those that utilize conventional drying technologies and those that is not yet commercialized and hence in need of RD. Relative merits and limitations of the various technologies and the current state of their development are presented. Drying characteristics of low-rank coal as well as factors affecting drying characteristics of coal samples are also discussed.
相关主题: Readsorption, Spontaneous combustion, ENGINEERING, CHEMICAL, Heat treatment, Blending, Moisture content, Low-rank coal, Coal drying, ENGINEERING, MECHANICAL,

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