Production Of Sulfuric Acid From The Incineration Of Pulp Mill Non-Condensable Gases – A Biorefinery Concept, 2018 IBBC

Sulfur is an essential chemical element in Kraft pulp mills and it actively participate in reactions with wood chips to produce pulp. Sulfur is present in black/white liquors, discharge waters and it escapes the pulp mill processes as non-condensable gases (NCG). Traditionally, NCG are carefully collected and incinerated either in recovery boiler/power boiler/lime kiln or separate NCG boiler. In many cases oxidized sulfur in flue gas is not recovered and thus it increases the emission levels of mill. To the benefit for all our pulp mill customers, we have developed sulfuric acid production technology from the incineration of NCG.  

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