Distillation tower top and bottom outlet temperatures
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In a catalytic fractionation tower, the distillation temperature of diesel at the top is higher than that at the bottom. Is this normal, everyone? What caused it?
Firstly, this is definitely abnormal and does not conform to the heat distribution in the distillation column. Excluding the possibility of instrument failure, it might be that the mid-stage reflux happens to align with the temperature measurement point at the lower outlet