C Series Short Path Wiped Film Molecular Distillation Device for CBD Oil Extraction with Short Residence Time

Short path wiped film molecular distillation is a specialized liquid-liquid separation apparatus. Unlike conventional distillation that relies on boiling point differentials for separation, this technology leverages variations in the mean free path of distinct substances. As liquid mixtures flow along the inner wall of the main evaporator and are heated, both light and heavy molecules escape the liquid surface and enter the gas phase. Due to discrepancies in their free paths, light and heavy molecules travel different distances after vaporizing. After passing through the main evaporator’s built-in condensation tube, light molecules reach the tube, condense, and are discharged, while heavy molecules fail to reach the condenser and are expelled alongside the residual mixed liquid, thus achieving material separation.

Working Principle

Materials are transferred from the feed tank to the jacketed main evaporator, which is continuously heated. An integrated scraper uniformly spreads the materials into a flowing liquid film for instant evaporation. Light component materials vaporize and adhere to the built-in condensing coil, then flow into the collection flask along the coil’s outer wall, while heavy component materials flow down the main evaporator’s inner wall into their respective collection flask.

Application