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Air Liquide in India Pulp & Paper - Delignification

Oxygen Delignification

Now used on more than 150 sites worldwide, this process allows you to increase the quality of your pulp and reduce production costs, decrease your bleaching chemical requirements for elements like chlorine dioxide, as well as reduce your biochemical oxygen demand (BOD) and chemical oxygen demand (COD).

 

Polysulfide Liquor Generation

Polysulfide cooking enables you to increase the pulp yield from 1 to 3 percent and thus increase your unit productivity. Oxygen is used to convert classic kraft liquor into a polysulfide liquor through controlled oxidation.

Gases : Oxygen