ge power water & process...
TRANSCRIPT
GE PowerWater & Process Technologies
Inhibiting the Self-heating of Subbituminous Coals
Bryce Uytiepo – GE PowerPhil Poletti - Nova Coal SolutionsCoaltrans Asia 29-31 May 2016
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Challenges
Hot Spots and Smokers
Visible emissions
Handling problems
Coal Fires
Stops production operations
Potential for catastrophic losses
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Spontaneous CombustionSpontaneous combustion, or self-heating, of coal is a naturally occurring process resulting from the oxidation of coal.
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Factors that influence coal oxidation
Coal Quality
Calorific Value, FC, VC, Moisture, Rank
Storage Conditions
Temperature, Compaction, Exposure
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Subbituminous Coals
COAL PRB-1 PRB-2 SUB-1 SUB-2
MINE Black Thunder Spring Creek KPC-Kandui Tutupan
LOCATION Wyoming Montana Kalimantan KalimantanBTU/LB 8800 9350 8300 9000KCAL/KG 4900 5200 4610 5000% Sulf 0.35 0.34 1 0.1% Ash 5.31 4.25 5.38 2.5% Moist 27 25 26.5 26
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Fire TriangleAIR
FUEL HEAT
Coal - is the fuel and product, so it can’t be eliminated.Air - is difficult to keep from entire coal surfaceHeat - from oxidation can be eliminated
FIRE
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GE CoalPlus treated coal is safer, more marketable coal
Dustreat DC9144 and Dustreat DC9148Inhibits oxidation of subbituminous coals
Prevents hot spots and coal fires
Extends storage and transit time
Reduces fugitive emissions
http://www.gewater.com/mining
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GE CoalPlus treated coal is safer, more marketable coal
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Tem
pera
ture
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C)
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13-2
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ays
34-5
1 D
ays
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Nova Coal Solutions
Regional GE Channel partner
Provides CoalPlus Products and Services
Turn-key installation at Mines and Terminals
