Molecular - Short path distillation system Model F80-II(stainless steel made)
Molecular short path distillation is a distillation method operated under high vacuum. At this time, the mean free path of vapor molecules is greater than the distance between the evaporation surface and the condensation surface, so that the difference in evaporation rate of each component in the feed liquid can be used to optimize the liquid mixture to separate. At certain temperature, the lower pressure, the greater mean free path of gas molecules will be. When pressure in the evaporation space is very low ( 10-2 ～10-4 mmHg), and the condensation surface is close to the evaporation surface, and the vertical distance between them is smaller than the mean free path of the gas molecules, the vapor molecules vaporized from the evaporation surface may not be separated from the evaporation surface. Other molecules collide and condense directly to the condensing surface.
Description 1
Molecular Distillation
Molecular distillation is a special liquid-liquid separation technology. It differs from traditional distillation, which relies on boiling point differences, by using the difference in the mean free path of molecular motion of different substances to achieve separation.
When the liquid mixture flows along the heating plate and is heated, the light and heavy molecules escape from the liquid surface and enter the gas phase. Since the free paths of the light and heavy molecules differ, molecules of different substances travel different distances after escaping the liquid surface. If a condensing plate is installed correctly, the light molecules reach the condensing plate, condense, and are discharged, while the heavy molecules do not reach the condensing plate and are discharged with the mixed liquid. This achieves the purpose of material separation.
Equipment Composition
Molecular distillation equipment mainly includes: molecular evaporator, degassing system, feeding system, heating system, cooling vacuum system, and control system.
Industrial Applications
| Industry | Applications |
|---|---|
| Food Industry |
|
| Chemical |
|
| Pharmaceutical Industry |
|
F80-II Main Technical Parameters
General Parameters
- 1st Stage short-path distillation system: vacuum degree ≤ 10 Pa (no-load absolute pressure)
- 2nd Stage short-path distillation system: vacuum degree ≤ 1 Pa (no-load absolute pressure)
- Temperature: ≤ 250℃ (vacuum degree adjustable)
- Power design: 380V AC, total power ≈ 15 kW
- Equipment capacity: ~2 kg/hr, feed rate: 50–200 mL/h
(1) Feeding System
| SN | Name | Specification | Material | QTY | Remarks |
|---|---|---|---|---|---|
| 1 | Material Tank | volume ≥ 0.5L | Stainless steel 304 | 1 | |
| 2 | Feeding Valve | 2 | |||
| 3 | One-way Valve | Stainless steel 304 | 1 |
(2) 1st Stage Short Path Distillation System DN80
| SN | Name | Specification | Material | QTY | Remarks |
|---|---|---|---|---|---|
| 1 | Evaporator | S = 0.08 m² | SUS304 | 1 | |
| 2 | Condenser | S = 0.03 m² | SUS304 | 1 | |
| 3 | Film Scraper | R ≥ 120 rpm | Enhanced PTFE | 1 | |
| 4 | Sealing | Magnetic fluid seal | 1 | Direct Current Stepless speed regulation | |
| 5 | Vacuum Tube | Dg 40 | SUS304 | ||
| 6 | Condenser Tube | G 3/4 | SUS304 | ||
| 7 | Conduction Oil Unit | 4 kW | 1 | Heating accuracy: ±1℃ | |
| 8 | Vacuum System | 1 | Water ring pump / Mechanical pump | ||
| 9 | Vacuum Meter | 1 | Range: 0.1 Pa | ||
| 10 | Collection Bottle | Glass | 1 |
(3) 2nd Stage Short Path Distillation System DN80
| SN | Name | Specification | Material | QTY | Remarks |
|---|---|---|---|---|---|
| 1 | Evaporator | S = 0.08 m² | SUS304 | 1 | |
| 2 | Built-in Condenser | S = 0.03 m² | SUS304 | 1 | |
| 3 | External Condenser | S = 0.03 m² | SUS304 | 1 | |
| 4 | Wiper | R ≥ 120 rpm | Enhanced PTFE | 1 | Direct Current Stepless speed regulation |
| 5 | Sealing | Magnetic fluid seal | 1 | ||
| 6 | Inlet & Output Pipe | Dg 15 | SUS304 | ||
| 7 | Vacuum Tube | Dg 40 | SUS304 | ||
| 8 | Condenser Tube | G 3/4 | SUS304 | ||
| 9 | Conduction Oil Unit | 4 kW | 1 | Heating accuracy: ±1℃ | |
| 10 | Vacuum System | 2 | Roots/Rotary Vane Pump + Diffusion Pump | ||
| 11 | Digital Vacuum Gauge | 1 | Atmospheric pressure ∽ 0.1 Pa, with manual adjustment valve | ||
| 12 | Collection Bottle | 250 mL | Glass | 2 | |
| 14 | Chilling Unit | 1.5P | 1 | Air cooled | |
| 16 | Control Cabinet | Touch screen control | 1 | Digital display, control instrument, etc. | |
| 17 | Frame | Stainless Steel |
