Method and equipment for treatment of black liquor at pulp mill

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United States of America Patent

PATENT NO 8821686
APP PUB NO 20110120662A1
SERIAL NO

12990869

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The invention relates to a method and equipment for treatment of black liquor at a pulp mill in order to recover chemicals and energy contained therein. In the invention, the black liquor is pyrolyzed in a pyrolysis reactor (4), the formed gaseous components are forwarded for utilization and the solids are mixed with water, whereby the formed solids are returned to a lime burning kiln (1) and the sodium-hydroxide-containing liquid is returned to the pulp cooking process.

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Patent Owner(s)

Patent OwnerAddress
VALMET POWER OYP O B 109 TAMPERE 33101

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Honkola, Timo Kangasala, FI 4 35
Kuukkanen, Kari Tampere, FI 7 18
Lehto, Jani Tampere, FI 9 61

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