Zhongyu Instrument Glass Distillation Equipment Laboratory Plate Tower

Zhongyu Instrument Glass Distillation Equipment Laboratory Plate Tower

Choosing a laboratory plate tower requires comprehensive consideration of operational flexibility, material handling characteristics, and experimental objectives. The following is a comparison and applicable scenarios of three mainstream tower types:

1. ‌Sieve tray tower‌

• ‌characteristicSimple structure, low cost, high tray efficiency, but low operational flexibility (low tolerance for load fluctuations), prone to blockage

• ‌Applicable scenarios‌：

• Handle clean, low viscosity materials (such as conventional distillation experiments).

• Cost sensitive and load stable experiments.

2. ‌Floating valve tower‌

• ‌characteristicHigh operational flexibility (strong load adaptability), pressure reduction, but valve disc may detach or get stuck

• ‌Applicable scenarios‌：

• Experiments with large fluctuations in gas-liquid ratio (such as absorption/desorption processes).

• A pilot study is needed to balance efficiency and operational flexibility.

3. ‌Bubble Tower‌

• ‌characteristicMaximum operational flexibility, but complex structure, high pressure drop, and low efficiency

• ‌Applicable scenarios‌：

• Experiments on high viscosity or easily coking materials (such as heavy oil distillation).

• Precision experiments that require high operational stability.

Selection Recommendation

• ‌Priority sieve tray towerIf the experimental materials are clean and the load is stable, pursue low cost and high efficiency.

• ‌Priority valve towerIf it is necessary to cope with load fluctuations or optimize comprehensive performance (such as mass transfer efficiency and resistance balance).

• ‌Be cautious with bubble wrap towersSelect only when the material is special or when the experiment requires high operational flexibility.

Zhongyu Instrument Glass Distillation Equipment Laboratory Plate Tower

The glass distillation device achieves mixture separation through gas-liquid mass transfer, and the core principle is as follows:

1. Separation foundation

Utilize the components in the mixtureVolatility difference(i.e. different boiling points). After heating, low boiling point components preferentially vaporize, while high boiling point components remain in the liquid phase

2. Gas liquid mass transfer process

• ‌Tower plate contactThe rising vapor phase (containing light components) and the falling liquid phase (containing heavy components) are in reverse contact on the tray

• ‌Mass transfer mechanismThe heavy components in the vapor phase condense back into the liquid phase, while the light components in the liquid phase vaporize and enter the vapor phase, achieving component transfer

• ‌Multi level reinforcementRepeat this process on each tray to gradually increase the concentration of light components in the vapor phase and heavy components in the liquid phase

3. Separation mechanism

• ‌temperature gradientLow boiling point products are fractionated at low temperatures at the top of the tower, while high boiling point products are separated at high temperatures at the bottom of the tower

• ‌Reflux effectPartial condensate returns to the tower to maintain stable composition and improve separation purity

• ‌Packing optimization(such as glass spring packing): By increasing the specific surface area and improving wettability, the mass transfer efficiency can be increased by 35%