Can carbon steel tanks hold ethanol and methanol?
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Can carbon steel tanks made of Q235B be used to store methanol and ethanol? Thank you
Methanol is definitely fine; as for ethanol, I’m not sure. Please have experts provide an answer
Using carbon steel or low-alloy steel is completely fine.
Are there any relevant standards? I’d like to learn *it a bit, thanks :)
Will it corrode? Will it evaporate?
When the methanol concentration is below 100%, carbon steel and low-alloy steel can be used in temperatures ranging from 0°C to 100°C, with corrosion levels remaining satisfactory; the annual corrosion rate is between 0.05 and 0.5 mm； At a concentration of 100%, it can be used from 0°C to 100°C, with excellent corrosion resistance; the annual corrosion rate is <0.05 mm. When the ethanol concentration is less than 100%, carbon steel and low-alloy steel can be used at temperatures ranging from 0°C to 80°C; the degree of corrosion is excellent, with an annual corrosion rate of <0.05 mm ； At a concentration of 100%, the temperature can range from 0°C to 100°C; the degree of corrosion is excellent, with an annual corrosion rate of <0.05 mm. Ethanol concentration is less than
Absolutely, for transporting methanol and ethanol like this, I mostly use carbon steel tanks
Thank you very much; I’ve gained some knowledge, thanks. :)
For both methanol and ethanol, we use carbon steel; for large tanks, the bottom plate or the lower pressure-bearing steel plates should be of Q345R grade. Since ethanol is alkaline, there’s no issue at all
Sure, we all use carbon steel to manufacture the storage tanks for these items.