The main role of methanol alcohol recovery tower reflux

April 12, 2022

The main role of methanol recovery tower reflux:
1、Provide cold reflux on the tower plate, take away the excess heat in the tower, maintain the heat balance in the methanol recovery tower
2、Provide cold fluid on the tower plate, the gas-liquid two phases in reverse contact on the tower plate, the upstream gas in the recombination of condensation, the downstream liquid in the light component of heat absorption vaporization, repeated condensation and vaporization to further increase the accuracy of product separation.
Common reflux methods:
Natural reflux: The reflux Condenser is installed on the dry methanol recovery tower, and the reflux liquid flows back into the tower by gravity, the height of the condenser from the top of the tower to the reflux port.
Natural reflux is easy to operate and does not require a reflux pump, saving power consumption. However, the return flow rate varies with the tower pressure, the return ratio is not strict, and it is slow to adjust when the production is not normal. Natural
Reflux is generally used in small distillation units.
Forced reflux: The reflux solution is pumped into the methanol recovery column for reflux:
Forced reflux is stable, easy to adjust, and quicker to adjust when production is not normal. However, forced reflux requires a reflux pump with high power consumption, and for dry low boiling point materials it is easy to cause the pump not to

on the amount, affecting the operation.

Methanol Distillation Column

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