Open AccessDrying Characteristics of High Moisture Low Rank Coal using a Steam Fluidized-bed Dryer
Author(s) -
Gi Yeong Kim,
YoungWoo Rhee,
Jae Hyeok Park,
Dowon Shun,
Dal-Hee Bae,
Jong-Seon Shin,
Ho-Jung Ryu,
Jaehyeon Park
Publication year - 2014
Publication title -
clean technology
Language(s) - English
Resource type - Journals
eISSN - 2288-0690
pISSN - 1598-9712
DOI - 10.7464/ksct.2014.20.3.321
Subject(s) - coal , moisture , water content , waste management , volumetric flow rate , fluidized bed , chemistry , pulp and paper industry , environmental science , materials science , thermodynamics , engineering , composite material , geotechnical engineering , physics
In this study, Indonesia low rank coal, which has moisture content of around 26%, is dried less than 5% by using a laboratory-scale (batch type) steam fluidized-bed dryer in order to produce the low-moisture, high rank coal. Normally, CCS (carbon capture and storage) process discharges CO2 and steam mixture gas around 100-150 ℃ of temperature after regeneration reactor. The final purpose of this research is to dry low rank coal by using the outlet gas of CCS process. At this stage, steam is used as heat source for drying through the heat exchanger and CO2 is used as fluidizing gas to the dryer. The experimental variables were the steam flow rate ranging from 0.3 to 1.1 kg/hr, steam temperature ranging from 100 to 130 ℃, and bed height
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