Vanadium catalyst
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What is the vanadium content in the vanadium catalyst used for sulfuric acid production? How often is it generally replaced?
The content is between 6-8%. The service life is primarily determined by the type of facility: for sulfur-based acid production, it is over 5 years; for acid production from sulfur ores or through smelting processes, it depends on factors such as the quality of the purification processes. In good cases, the service life is over 3 years, but in less favorable situations, the equipment needs to be replaced after just over a year. Additionally, vanadium catalysts are generally added as needed, and it is rare to replace them all at once
The content of vanadium pentoxide in different catalysts varies, but it is generally in the range of 6-8%; however, various manufacturers add other components to enhance their activity. The catalyst is replaced based on the required conversion rate; over time, this rate decreases. We use Monsanto’s catalysts, and after 5 years of use, the conversion rate has dropped from 99.82% to 99.73%. No plan to replace it at the moment.
Okay, thank you all. I’m unable to add points myself; I suggest that the moderator add the points, as the explanation provided is very detailed
Generally, vanadium catalysts contain 6–9% vanadium; if the amount exceeds 9%, there is no significant effect on activity, while if it is less than 6%, the activity is significantly lower. Vanadium catalysts in our country are generally replaced every 5 to 8 years.