Continuous Rectification

Continuous Rectification

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Product Description

Continuous Rectification            

Technical Description of Continuous Rectification 

Distillation is used to separate liquid mixtures made up of individual liquids that are soluble in one another. Rectification refers to distillation in a counterflow. Ethanol/water is recommended as the liquid mixture for the. It is fed into the column. It partially evaporates on its way to the bottom of the column where it is heated to boiling. The mixed vapour produced then moves upwards in the column. The mixed vapour contains a higher concentration of the component with the lower boiling point (ethanol). It leaves the top of the column and is condensed using a condenser and a phase separation tank. Part of this condensate is collected in a tank as product while the rest is fed back into the column. Here, on its way downwards, it undergoes further heating and material exchange with the rising mixed vapour. This exchange causes the vapour phase to become richer in ethanol and the liquid phase to become richer in water. The liquid phase moves to the bottom and can be collected in two tanks

Specification of Continuous Rectification 

  • Continuous and discontinuous rectification with packed and sieve plate column
  • Interchangeable columns
  • Sieve plate column with 8 plates, 3 feed inlets
  • Packed column with Raschig rings
  • Vacuum mode possible with water jet pump
  • Electrically heated evaporator
  • Tanks for feed, bottom and top product
  • Heat exchanger for bottom product cooling due to feed preheating or cooling water
  • Condenser and phase separation tank for top product
  • Adjustment of reflux ratio using valves
  • 8 temperature sensors per column

Technical Data of Continuous Rectification 

Columns

  • Internal diameter: 50mm
  • Height: 765mm

Feed pump

  • Max. Flow rate: 400ml/min
  • Water jet pump: final vacuum: approx. 200mbar

Tanks

 

  • Feed: 2x approx. 5L
  • Bottom product: 2x approx. 4L
  • Top product: approx. 1,5L
  • Phase separation: approx. 0,5L
  • Heat transfer surfaces
  • Feed preheating/bottom cooling: approx. 0,03m²
  • Top product condenser: approx. 0,04m²

 

Measuring ranges

 

  • Temperature: 16 x 0...150°C
  • Reflux ratio: 0...100%
  • Heater power output: 0...4kW
  • Column differential pressure: 0...250mbar
  • Cooling water flow rate: 30...320L/h
  • System pressure gauge:  -1...0,6bar

 

Dimensions and Weight of Continuous Rectification 

 

  • LxWxH: 1.300x760x2.400mm
  • Weight: approx. 280kg

 


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