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Pulp and Paper
Select a step where Air Liquide intervenes in your value chain.

Neutralization after bleaching

Carbon dioxide can be used to regulate the pH of recycled, mechanical or chemical pulps after an alkaline bleaching stage, particularly when hydrogen peroxide is used. Advantages compared with traditional acids are ease of use, increased pH control stability, installation safety, reduction in sulfur containing products.


Equipment for industrial gases

  • Carbon dioxide self cleaning gas injection valve


Gas supply mode