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http://dx.doi.org/10.9713/kcer.2015.53.2.231

Characteristics of Binderless Briquettes for Indonesian Low-Rank Coals  

Chun, Dong Hyuk (Clean Fuel Laboratory, Korea Institute of Energy Research)
Rhim, Young Joon (Clean Fuel Laboratory, Korea Institute of Energy Research)
Kim, Sang Do (Clean Fuel Laboratory, Korea Institute of Energy Research)
Yoo, Jiho (Clean Fuel Laboratory, Korea Institute of Energy Research)
Choi, Ho Kyung (Clean Fuel Laboratory, Korea Institute of Energy Research)
Lim, Jeong Hwan (Clean Fuel Laboratory, Korea Institute of Energy Research)
Lee, Sihyun (Clean Fuel Laboratory, Korea Institute of Energy Research)
Publication Information
Korean Chemical Engineering Research / v.53, no.2, 2015 , pp. 231-235 More about this Journal
Abstract
The characteristics of binderless briquettes for dried low-rank coal was studied in this work. Two kinds of Indonesian coals were used to briquette after drying them in electric oven. The characteristics of briquettes have been examined by moisture contents, particle size, hydraulic force, and storing period. The optimum moisture contents of briquettes were observed at between 10 wt% and 15 wt%. The strength of coal briquette was stronger as particle size became smaller. The strength of coal briquette was proportional to the hydraulic force under 300 kN, whereas there was little difference among the briquettes made at more than 300 kN of hydraulic force. The strength of briquettes sharply decreased for a week after produced, and then showed the tendency of converging. The results from this work can be a useful guideline of manufacturing and managing upgraded coal briquettes.
Keywords
Low-rank Coal; Binderless; Coal Briquette; Compressive Strength;
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Times Cited By KSCI : 3  (Citation Analysis)
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