Fuel and related compositions – Solid carbonaceous fuel dispersed in a liquid medium
Patent
1993-07-02
1995-01-10
Medley, Margaret
Fuel and related compositions
Solid carbonaceous fuel dispersed in a liquid medium
110341, 110347, 431 2, 431 12, C10L 100, F23B 700, F23N 100
Patent
active
053803426
ABSTRACT:
A process is provided for burning a coal water slurry comprising providing clean coal fines of less than 100 mesh at about 50 weight % and water at about 50 weight % by co-firing the coal water slurry in a continuous stream with a separate stream of pulverized coal wherein about 80% of the total BTU output of the furnace is provided from the pulverized coal and approximately 20% of the BTU output is provided from the coal water slurry. First, a quarl in the furnace is preheated using natural gas, for example. The furnace is next fired with a fuel source of 60% pulverized coal and 40% natural gas. A coal water slurry with fines of minus 100 or smaller is subsequently gradually introduced into the furnace as the gas input is gradually decreased.
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Leonard, III Joseph W.
Stoessner Robert D.
Medley Margaret
Pennsylvania Electric Company
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