Coking distillation
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During the coking distillation process, the cooler liquid phase and the hotter gas phase come into contact on the tray; shouldn’t it be that the liquid phase absorbs heat while the gas phase releases heat, resulting in an increase in the temperature of the liquid phase and a decrease in the temperature of the gas phase? Why does the temperature of the diesel fuel tank decrease when increasing the cold return flow of diesel (which passes through a pump, is then cooled, and returns to the upper part of the suction port) or the hot return flow (which is pumped out without being cooled and returns directly to the lower part of the suction port)?
Do you know about the backflow effect and its principle? Check it out