Heating for sulfuric acid pipelines
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93% sulfuric acid, minimum ambient temperature of -35°C, intermittent delivery – is it necessary to install electric heating in the pipes? What temperature is appropriate for electric heat tracing?
For 93% sulfuric acid, when the ambient temperature drops as low as -35°C and delivery is intermittent, it is indeed necessary to add electric heating to prevent the sulfuric acid from crystallizing at low temperatures or to improve its fluidity. The set temperature for electric heating should be higher than the crystallization temperature of sulfuric acid; a value of around 10°C is usually sufficient to prevent sulfuric acid from crystallizing and ensure its proper flow. .
Insulation and heating are required, with a temperature of over 10 degrees
Insulation and heating are required; the temperature should be 5 degrees Celsius above the crystallization temperature