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Area: Pulp and Paper

BLACK LIQUOR OXIDATION & WHITE LIQUOR OXIDATION

When using white liquor in processes such as oxygen delignification and bleaching extraction, sodium sulfide (Na2S) can negatively impact the pulp quality. One solution is to use oxidation of white liquor which also reduces the required sodium hydroxide.

NORAM’s IsoFlo™ reactor efficiently oxidizes Na2S, either partially to thiosulfate or completely to sulfate. The partially oxidized white liquor can be used in oxygen delignification, EO-bleaching, and in SO2-scrubbers. The fully oxidized white liquor can be used in EOP- and OP-bleaching stages.

In addition, IsoFlo™ can be used for black liquor oxidation, effectively reducing odor from the sulfur content. This technology is also integrated into NORAM’s LignoForce™ technology. It offers a compact design with possibilities for heat integration.

Technical manager

Victoria Ignell

Victoria Ignell

Process Engineer

NORAM INTERNATIONAL AB
Gruvgatan 35, SE-421 30 Västra Frölunda, Sweden
M: +46 (0) 738 31 29 68
D: +46 (0) 31 757 40 17
E-mail

Sales

Erik Cleverstam

Erik Cleverstam

Sales Manager, Project

NORAM INTERNATIONAL AB
Gruvgatan 35, SE-421 30 Västra Frölunda, Sweden
M: +46 (0) 721 72 75 01
D: +46 (0) 31 757 40 16
E-mail

Short reaction time

Reduced oxygen consumption

Minimal environmental impact

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With more than 180 plants installed all over the world – the Cellchem sulphur burning plants are one of the most used technologies for production of sulphur dioxide (SO2). Available standard capacities range from 0.5 to 100 metric tons of sulphur burned per day and the design can be tailored to produce several downstream SO2 products.

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