Molecular Distillation Pilot Plant

Short path distillation is a process development and scale-up platform for precise separation and purification under high vacuum conditions, leveraging molecular free path differences.
The Molecular Distillation System is more than just a piece of equipment; it serves as a critical bridge between laboratory R&D and industrial production. Compared to small-scale laboratory equipment, pilot plants offer more comprehensive system integration, higher processing power, and enhanced process data collection capabilities. Compared to large-scale industrial equipment, they also offer greater flexibility and lower investment risk.

The core operating principle of the molecular distillation pilot plant is that, under extremely high vacuum conditions, a liquid film of the mixed material is evenly spread across a heated surface, causing the molecules to evaporate due to the heat. Due to the extremely high vacuum within the system, intermolecular collisions are negligible, and molecules are guided solely by their own gravity. Light molecules, with their larger mean free path, can overcome the shorter distance to reach the central condenser, where they are collected. Heavy molecules, however, due to their shorter mean free path, are unable to reach the condenser and instead fall along the heated surface into a residue collection tank. This results in efficient and gentle separation of substances.

A complete Wiped Film Molecular Distillation Machine consists of the following core systems:
1. Distillation Unit: The core is a wiped-film evaporator and an internal condenser. By forming an extremely thin, intensely turbulent liquid film on the heated wall, it achieves efficient mass transfer and separation.
2. High Vacuum System: The Stainless Steel Molecular Distillation Unit utilizes a combination of a backing pump and a main pump to create and maintain the high vacuum environment required for molecular distillation.
3. Feed and Discharge: Precision metering pumps ensure continuous and stable feed, while multi-stage receiving tanks allow for the collection of fractions in stages without disrupting the vacuum.
4. Heating and Temperature Control: The Laboratory Molecular Distillation System utilizes a thermal oil heater and other components combined with PID precise temperature control to ensure gentle processing of heat-sensitive materials.
5. Automatic Control System: The integrated PLC control system monitors, adjusts, and records data for all key parameters, serving as the intelligent control center of the unit.

Petrochemicals: Lubricant oil decolorization, residue oil deep extraction, and wax purification.

Fine Chemicals: Resin monomer purification and plasticizer purification.

Food Industry: Omega-3 concentration in fish oil, vitamin E extraction, and pigment decolorization.

Flavor and Fragrances: Decolorization and purification of natural essential oils.

Pharmaceuticals: Concentration of active ingredients in traditional Chinese medicines and purification of pharmaceutical intermediates.

New Materials: Concentration of carbon nanotubes and purification of liquid crystal monomers.

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