Process for treating aqueous condensate

Details Process for treating aqueous condensate Process for treating aqueous condensate

1986-10-31

1988-03-15

Kratz, Peter

Gas: heating and illuminating

Processes

Fuel mixtures

48202, 48206, C10J 316, C10J 308, C10J 314

Patent

active

047310995

ABSTRACT:
Solid fuels are gasified in a fixed bed under a pressure from 5 to 100 bars by a treatment with oxygen, water vapor and carbon dioxide. The raw gas from the gasifier is cooled so that an aqueous condensate is formed, at least part of which is burnt in a fluidized bed furnace at temperatures in the range from about 750.degree. to 1000.degree. C. The resulting combustion gas contains water vapor and is supplied to the gasifier. The condensate which becomes available as the raw gas is cooled may be treated in a separator to remove at least part of its dust and tar contents before the condensate is supplied to the fluidized bed furnace. A circulating fluidized bed is preferably maintained in the fluidized bed furnace.

REFERENCES:
patent: 3870480 (1975-03-01), Moss
patent: 3971639 (1976-07-01), Matthews
patent: 4065273 (1977-12-01), Rudolph
patent: 4175929 (1979-11-01), Frumerman et al.
patent: 4211540 (1980-07-01), Netzer
patent: 4426810 (1984-01-01), Rudolph et al.
patent: 4444568 (1984-04-01), Beisswenger et al.

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