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CE 400: Gas Absorption

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Gas Absorption

Gas Absorption Gas Absorption

Product Details


Technical Description
Absorption involves separating one or more gas components from a gas flow using a solvent.
First of all, a CO2and air gas mixture is produced. It is possible to adjust the mixing ratio using valves. The flow rates of the gas components are displayed by rotameters.
A compressor delivers the gas mixture into the lower section of the packed column. In the column, part of the CO2 is separated in the countercurrent with the solvent. Water is used as the solvent. The CO2is absorbed by the downward flowing water and the charged water is then fed from the lower section of the column into a collecting tank. To separate the absorbed CO2, the charged water is delivered from the collecting tank into a vacuum tank. As the pressure is reduced, the solubility of the CO2 falls causing the CO2 gas to be emitted from the water. A centrifugal pump then delivers the regenerated solvent back into the collecting tank. From there, it is delivered back to the upper section of the column by a further centrifugal pump.
The two-section column is equipped with measuring connections to determine the pressure losses. The pressure loss in the respective sections can be displayed via 2 U-tube manometers. To evaluate the success of the process, the system includes outlets for taking gas and liquid samples. The gas samples can be analysed using the hand-held measuring unit supplied.
The well-structured instructional material sets out the technological fundamentals and provides a step-by-step guide through the measurements and experiments.

Learning Objectives / Experiments
- Investigation of the absorption process whenseparating gas mixtures in a packed column
- Determination of pressure losses in the column
- Detemination of flooding point
- Representation of the absorption process in an operating diagram
- Investigation of the variables influencing the effectiveness of absorption
- Mass balance
- Determination of material transition data (HTU, NTU)

Features
* Separating a CO2/air mixture by absorption in countercurrent
* DURAN glass packed column with Raschig rings
* Reliable operation due to use of water as the solvent and non-hazardous gases
* Regeneration of solvent by vacuum
* Gas analysis with hand-held unit
Specification
[1] Separation of CO2/air mixture by absorption in countercurrent with water
[2] Production of gas mixture using CO2 from compressed gas cylinder and ambient air
[3] Adjustment of mixing ratio using valves
[4] DURAN glass packed column with Raschig rings and stainless steel flanges
[5] Plastic collecting tank for solvent with absorbed CO2
[6] Continuous solvent regeneration in circuit with vacuum tank
[7] Water jet pump for generation of vacuum
[8] Centrifugal pumps for regeneration circuit and returning solvent to column
[9] Rotary vane compressor for delivering the gas mixture into the column
[10] Hand-held measuring unit for gas analysis
[11] Temperature, pressure and differential pressure measurement

Technical Data
Packed column:
- height: 1560mm, internal diameter: 80mm
2 centrifugal pumps:
- max. flow rate: 18L/min
- max. head: 50m
Rotary vane compressor:
- max. positive pressure: 1bar
- max. flow rate: 8m³/h (at 50Hz)
Water jet pump: final vacuum: approx. 16mbar
Flow meter:
- CO2: 0.4...5.4L/min
- air: 12...162L/min
- solvent: 0...600L/h
Tanks: collecting tank: 50L, vacuum tank: 5L

Dimensions and Weight
l x w x h : 950 x 750 x 2380 mm
Weight : approx. 180 kg

Connections
230V, 50/60Hz, 1 phase or 120V, 50/60Hz, 1 phase
CO2 gas cylinder with pressure reducer,
Water connection: 250L/h

Scope of Delivery
1 gas absorption system, 1 hand-held measuring unit for gas analysis, 1 set of instructional material

Order Details
083.40000  CE 400  Gas Absorption
Alternative products
RT 681 -- Test Stand for Level / Pressure Control

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Grindelallee 188, 20144 Hamburg / Germany
Tel.: + 49 (0) 40 343453 |  Fax: +49 (0) 40 63657075
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