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Home > Chemical Processing > Chemical Processing > MP1040

Absorption / desorption


Service : 230 V / 50 Hz / Single phase: 0.5 kW.
Cold water 20 C / 3 bar: 600 l / h.
Compressed air 6 bar: 20 Nm3 / h
Reagent gas with pressure regulator 1 bar: 1 Nm3 / h
Evacuation of toxic gases.
Sewer.
Dimensions : 1, 35 m x 0, 60 m x 3, 00 m
Weight : 120kg

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DEMANDER UN DEVIS POUR CETTE MACHINE

Principle of operation


Absorption is a process of material transfer from a compound present in a gas phase to a liquid phase by dissolution. The reverse operation of transfer of a gas dissolved by an inert gas is called desorption. These processes are carried out in a packed column between an ascending gas effluent and a descending solution or solvent (countercurrent operation). The presence of packing increases the liquid-gas exchange surface, thus the material transfers. A heat exchanger at the bottom of the column makes it possible to cool the outgoing solution (the absorption is an exothermic reaction); in discontinuous operation this exchanger makes it possible to check the influence of the temperature on the efficiency of the absorption. A static mixer, located upstream of the introduction of gas into the column, serves to dilute the gas to be treated with an inert gas (air or nitrogen).




Educational Objectives :
  • Study of the hydrodynamics of the column.
  • Study of the absorption without chemical reaction.
  • Absorption study with chemical reaction.
  • Influence of the pressure drop on the efficiency of the column.
  • Continuous or discontinuous operation.
  • Study of the desorption by an inert gas.
  • Thermal balances.
  • Material balance.
  • Determination of the number of theoretical plates (McCABE and THIELE, KREMSER and BROWN).
  • Determination of the number of transfer units
  • Material transfer coefficient.
Technical specifications :

Equipment

  • Canister for the solution or polyethylene feed solvent.
  • Feeder dosing pump.
  • Trap for differential pressure tap.
  • Column made of borosilicate glass, in two parts with glass lining.
  • A recentering plate in 316L stainless steel,
  • Borosilicate glass column head, with introduction of the solution or solvent and evacuation of the gas phase.
  • Column of borosilicate glass column, with introduction of the gas phase.
  • 316L stainless steel vertical refrigerant.
  • Hydraulic guard adjustable in height.
  • Recipe of borosilicate glass solution.
  • 316L stainless steel connection pipes.
  •  Support frame in 304L stainless steel tubes and aluminum nuts.


Instrumentation
 

  • Condenser cooling water supply equipped with a float flowmeter with its control valve.
  • Column pressure drop measurement using a "U" differential pressure gauge.
  • Control and control cabinet, IP55, equipped with emergency stop, operating buttons and the following interfaces:
  • Two digital temperature indicators of nine probes type Pt100 Ω.
DEMANDER UN DEVIS POUR CETTE MACHINE

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