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Investigating Compatible Drying Technique for Safe Utilization of Thar Coal, Pakistan.
- Source :
-
International Journal of Coal Preparation & Utilization . 2022, Vol. 42 Issue 11, p3303-3324. 22p. - Publication Year :
- 2022
-
Abstract
- To enhance the combustion efficiency of high moist coal, it is important to reduce its moisture contents. For reduction of moisture contents, the selection of efficient and low-cost drying technique based on the coal characteristics is helpful to convert the high moist coal to good quality fuel. A total of 18 Thar coal (Pakistan) samples were crushed and sieved at following size fractions (355, 500, 710 µm). These samples were dried using different techniques, namely, solar-drying, hot air-drying, oven-drying, microwave oven-drying, and flue gases drying. The morphological, physical, and chemical changes were investigated for the effectiveness of different techniques to make the Thar coal as a value-added fuel. The applied drying techniques showed a significant reduction in moisture contents from the Thar coal samples (38.11 to 7.78%). However, the flue gases drying and air-drying techniques showed highest reduction in moisture content (29–31%). Similarly, 35% increase in heating value (HV) J/kg was observed in case of flue gases drying technique. These results indicated that the flue gases and air-drying techniques may be used to reduce the moisture contents and enhance the HV of high moist Thar coal that can be used as value-added fuel in the country. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 19392699
- Volume :
- 42
- Issue :
- 11
- Database :
- Academic Search Index
- Journal :
- International Journal of Coal Preparation & Utilization
- Publication Type :
- Academic Journal
- Accession number :
- 159984057
- Full Text :
- https://doi.org/10.1080/19392699.2021.1958794