Please use this identifier to cite or link to this item: https://doi.org/10.1080/07373930701590608
Title: Factors affecting quality of dried low-rank coals
Authors: Karthikeyan, M. 
Kuma, J.V.M. 
Hoe, C.S. 
Ngo, D.L.Y.
Keywords: Cracking
Drying
Low-rank coal
Re-adsorption
Upgrading
Issue Date: Oct-2007
Source: Karthikeyan, M., Kuma, J.V.M., Hoe, C.S., Ngo, D.L.Y. (2007-10). Factors affecting quality of dried low-rank coals. Drying Technology 25 (10) : 1601-1611. ScholarBank@NUS Repository. https://doi.org/10.1080/07373930701590608
Abstract: The chemical and physical properties of coal are strongly affected by the upgrading process employed. For high-moisture coals, upgrading involves thermal dehydration to improve the calorific value of the coal on mass basis. This study evaluates the feasibility of upgrading a low-rank/grade coal using the oven drying method. The objective of this research work is to study the drying characteristics of low-rank coals and to understand the factors affecting the quality of dried low-rank coals. This article describes laboratory experiments conducted on the characterization of the low-rank coals before and after the drying process. The results on drying kinetics, re-absorption of coal samples, and proximate analysis of coal samples before and after drying are discussed. It was found that the upgrading process produced coal with better heating value and combustion characteristics than those of the raw coal samples.
Source Title: Drying Technology
URI: http://scholarbank.nus.edu.sg/handle/10635/65582
ISSN: 07373937
DOI: 10.1080/07373930701590608
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