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Lab-Scale Short Path Evaporator

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In a short path evaporator, the rotor cage assembly surrounds an internal condenser and revolves at moderate speeds. Feed enters through a nozzle at the top of the unit and is spread into a thin film on the inside surface of the shell via the rotor blades.

The rotor blades gently agitate the process liquid as it travels down the heated surface in a very short time while vapors are generated on the heating surface. These vapors flow through the rotor cage before condensing on the internally-located condenser.

The cage-type construction and location of the internal condenser create a short vapor flow path or “short path”, extending the operating pressure capability from 1 mbar to 0.001 mbar compared to a standard thin-film evaporator.

Capacity can be varied by adjusting the feed rate, heating temperature, rotor speed, and/or vacuum to achieve the desired composition result.

Features & Benefits

o The LCI Lab-Scale Short Path is the perfect solution for developing products/processes involving deep vacuum thermal separation of process streams in your own R&D/lab facilities.

  • 0.59 ft2 Heated surface area
  • 316SS Process wetted parts
  • Heating temperatures up to 650° Fahrenheit
  • Typical feed rate 2-30 lb/hr
  • Low residence time
  • Vacuum levels down to 0.001 mbar
  • Wiper, high viscosity, and Smith-type rotor blade options
  • Customizable solution


  • Purification of Essential Oils and Cannabinoids
  • Dehydration/devolatilization of organics
  • Distillation/purification of organics
  • Used oil recovery
  • Tocopherol distillation
  • Omega-3 purification Solvent reclaiming
  • Deodorization
  • Reaction of heat sensitive, viscous, and fouling materials.

In addition to the evaporator, an LCI Short Path Evaporator System can include any of these additional component options:

  • Feed tank and metering pump
  • Vacuum system
  • Wheeled cart
  • Piping, valves, etc.


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