| 摘要 |
The present invention relates to a method of treating waste liquor from pulp ing processes for recovering energy and chemicals from the waste liquor. The purpose is to increase the capacity of the recovery bo iler. According to the invention waste liquor is combust ed in a recovery boiler (10) for producing molten salts and flue gases and flue gase s are divided into at least two streams. One of the stre ams is passed to the heat exchange surfaces (14, 16, 18) subsequent to the furnace (12) of the recovery boiler and is discharged from the b oiler. The other of the gas streams or other gas streams is/are withdrawn from the recovery boiler at (38) or at points which are above the waste liquor injection level, and the withdrawn gas is cooled.
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