Hypoxic system for storing materials
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I would like to ask the experienced colleagues: When butyl acrylate is stored in carbon steel tanks at atmospheric pressure, a polymerization inhibitor is added to prevent polymerization; this inhibitor is effective only when there is 5%-20% oxygen present in the tank. However, too much oxygen poses a risk of explosion. Therefore, I am thinking of introducing a mixture of nitrogen and air into the tank in a certain proportion, so as to prevent polymerization without creating any explosion hazards. The explosive limit of butyl acrylate is 1.2%–9.9%. How to calculate the ratio of nitrogen to air? I would like to ask those who have experience with anoxic systems for some advice Thank you so much!
Styrene also needs this; we use a mixture of compressed air and N2 to keep the oxygen concentration around 6%, but the oxygen measurement instruments often don’t work properly