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Products  |  Process Engineering  |  Thermal Process Engineering  |  CE 600
CE 600 Continuous Rectification Show data sheet (pdf file) Print page
Technical Description

  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 CE 600. 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.

  A heat exchanger allows the feed to be preheated by the bottom product carried away from the column. A sieve plate column and a packed column are available. The sieve plate column has three connections at different heights for the feed. The packed column is filled with Raschig rings. The reflux ratio is adjusted using valves.

  Relevant measured values are recorded by sensors, displayed and can be processed on a PC. The software also allows controlling the temperature at the top of column or at the bottom of column (evaporator).

Learning Objectives / Experiments

- investigation and comparison of sieve plate and 

  packed columns
  * in continuous mode
  * in discontinuous mode
  * in vacuum mode
  * with different reflux ratios
  * with different numbers of plates and inlet heights

    for the feed flow (sieve plate column)
- energy efficiency increase due to feed preheating
- determination of concentration profiles
- determination of temperature profiles
- pressure loss over the column


* Discontinuous and continuous rectification1
* Comparison of packed and sieve plate column1
* Feed preheating using bottom product1
* Vacuum mode possible1
* Plates in sieve plate column removable1
* GUNT software with control functions and data


Alternative products
CE 602 -- Discontinuous Rectification
CE 640 -- Biotechnical Production of Ethanol
[1] continuous and discontinuous rectification with packed and sieve plate column
[2] interchangeable columns
[3] sieve plate column with 8 plates, 3 feed inlets
[4] packed column with Raschig rings
[5] vacuum mode possible with water jet pump
[6] electrically heated evaporator
[7] tanks for feed, bottom and top product
[8] heat exchanger for bottom product cooling due to feed preheating or cooling water
[9] condenser and phase separation tank for top product
[10] all tanks made of DURAN glass and stainless steel
[11] adjustment of reflux ratio using valves
[12] 8 temperature sensors per column
[13] GUNT software with control functions and data acquisition via USB under Windows Vista or Windows 7
Technical Data


- internal diameter: 50mm

- height: 765mm
Feed pump
- max. flow rate: 400ml/min
Water jet pump: final vacuum: approx. 200mbar
- 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. 0,03m
- top product condenser: approx. 0,04m

Measuring ranges
- temperature: 16 x 0...150C
- 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
LxWxH: 1.300x760x2.400mm
Weight: approx. 280kg
Required for Operation
400V, 50/60Hz, 3 phases or 230V, 60Hz/CSA, 3 phases
Cold water connection: 500...1.000L/h, drain
Scope of Delivery

1 trainer (with 2 columns)

1 set of hoses

1 set of accessories (tools, seals)

1 GUNT software CD + USB cable
1 set of instructional material

Order Details
083.60000  CE 600  Continuous Rectification
© 2005 G.U.N.T. Gerätebau GmbH