Method for recovering heat in an alkaline pulp digesting process

Details Method for recovering heat in an alkaline pulp digesting process Method for recovering heat in an alkaline pulp digesting process

1981-12-08

1983-12-20

Alvo, Steve

Paper making and fiber liberation

Processes of chemical liberation, recovery or purification...

With heat recovery

162 52, 162 61, D21C 708, D21C 1106

Patent

active

044215975

ABSTRACT:
A method and system for recovering heat in a pulp digesting process is disclosed. The method includes the steps of blowing a pulp and liquid mixture from a digester to a container such as a blow tank or blow cyclone; transferring flash vapor above a predetermined pressure, which is above atmospheric pressure, from the blow tank to a pressure accumulator; transferring flash vapor below the predetermined pressure from the blow tank to an atmospheric accumulator; and mixing the flash vapor with a processing liquid in the pressure accumulator.

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