Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – With regeneration – reclamation – reuse – recycling or...
Patent
1977-01-31
1979-01-23
Wolk, Morris O.
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
With regeneration, reclamation, reuse, recycling or...
48209, 162 30K, 201 25, D21C 1104, D21C 1112
Patent
active
041359682
ABSTRACT:
A process of significantly increasing the capacity of and decreasing the pollution from an existing recovery boiler. The spent liquor is concentrated to 55 to 65 weight % solids and divided into two portions. One portion, containing 10 to 65 weight % of the solids is pyrolyzed, reducing the original fuel value of that portion by 25 to 70%. The remaining carboniferous char and inorganic material is carried to the recovery furnace. The other portion, containing the remainder of the solids, is carried directly to the furnace. The two portions may be combined prior to entering the furnace. In the latter case, the solids content of the combined portion should not be greater than 80 weight %.
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Turk Arnold
Weyerhaeuser Company
Wolk Morris O.
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