Method for inhibiting corrosion in integrated spray drying-calci

Details Method for inhibiting corrosion in integrated spray drying-calci Method for inhibiting corrosion in integrated spray drying-calci

1988-08-31

1989-11-28

Yuen, Henry C.

Furnaces

Process

Treating fuel constituent or combustion product

110345, 432 72, F23J 100

Patent

active

048830046

ABSTRACT:
Corrosion and sulfuric acid formation in an integrated spray-drying and calcining operation is inhibited by operating the calciner at a temperature so that the exit gases from the calciner provides sufficient heat to the spray drier to keep the exit gases from the spray drier at a temperature above the dew point of the SO.sub.3 /H.sub.2 O vapors present in the spray drier exit gas.

REFERENCES:
patent: 3776688 (1973-12-01), Damgaard-Iversen et al.
patent: 4149453 (1979-04-01), Reed
patent: 4542704 (1985-09-01), Brown et al.
patent: 4702899 (1987-10-01), Benczak et al.
patent: 4717559 (1988-01-01), Cummings et al.
patent: 4720262 (1988-01-01), Durr et al.
patent: 4771712 (1988-09-01), Engstrom et al.

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