Molecular distillation can obtain pure and safe products, and the operation process is simple with few equipment. Molecular distillation technology can separate substances that are difficult to separate by conventional distillation. Molecular distillation equipment must ensure a high vacuum degree of system pressure, high requirements for material sealing, and moderate distance between the evaporation surface and the condensation surface. The equipment processing is difficult and the cost is high.

The energy consumption of molecular distillation products is low. Due to the low overheating loss of the entire separation process and the structural form of the molecular distillation device, the internal pressure is extremely low and the internal resistance is much smaller than that of conventional distillation, which can greatly save energy consumption.

Molecular distillation provides a separation method for high boiling point, thermosensitive, and easily oxidizable materials. Because molecular distillation operates at temperatures far below the boiling point of the material, and the residence time of the material is short.

The distillation liquid film of molecular distillation is thin, and the heat transfer efficiency of the entire product is high. The heating time of the material is short, and the distance between the heated liquid surface and the condensation surface is smaller than the average free path of light molecules. Therefore, light molecules escaping from the liquid surface almost reach the condensation surface without collision.

As a tower equipment mainly used for mass transfer processes, it is necessary to ensure sufficient contact between the gas-liquid phases to achieve high mass transfer efficiency. In addition to meeting the process conditions, the following basic requirements should also be met:

1. The production capacity needs to be large. The processing capacity of materials per unit time on the cross-section of a unit tower should be large. At high gas-liquid flow rates, it is still unknown that a large amount of mist entrainment, liquid blockage, or flooding may occur, which can disrupt normal operations.

2. High separation efficiency. The gas and liquid phases can fully contact and have good separation effects.

3. High operational flexibility. It has strong adaptability and a wide operating range. Can adapt to materials of different properties and maintain operational stability during load fluctuations, while still maintaining high separation efficiency.

4. Low pressure drop. When the fluid passes through, the resistance is small, which can greatly save the power consumption of production and reduce costs. If the pressure drop in the pressure reducing tower is too large, the system will be difficult to maintain the necessary vacuum degree

5. Simple structure, minimal consumables, easy to manufacture and install, which can reduce investment and lower costs.

6. Corrosion resistant and not easily clogged, easy to operate, adjust and maintain.