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  • Falling film evaporation

Falling film evaporation

Evaporateur à flot tombant

The falling film evaporation technology has several economic and industrial benefits. The capacity of these units can range from 10 k/hr to more than 100 t/hr.

Smaller footprint

Falling film evaporators are installed vertically installed and have a small footprint. In addition, the separator can be easily integrated into the evaporator to further reduce the floor area used.

Low residence time

The product flows by gravity in the exchange tubes by creating a thin liquid film on the inner walls. By varying the liquid's speed, it is possible to control the thickness of this liquid film and thus reduce the product's residence time.

Reduced operating cost

Pumping costs per tonne treated with a falling film evaporator are much lower than those for a forced circulation evaporator.

Reduced investment

The construction cost of a falling film evaporator is lower, notably due to a compact design (separator and scrubber in a single block) and the absence of structural costs.

Low foaming

The falling film evaporator is great for products sensitive to foaming.

Greater sensitivity to clogging

The falling film technology is more sensitive to clogging, especially compared to forced circulation evaporation.

It is not recommended on the clogging products, close to crystallization or viscous.

References

Since its creation, France Evaporation has designed, built and launched over 50 installations on 5 continents.

Concentration d'acide-aminé
Concentration of amino acid
  • Forced circulation evaporator operating with live steam
  • Concentration of 7 to 67%
View
Traitement de digestats de méthanisation
Treatment of methanization digestates
  • Digestate acidification
  • Falling film or forced circulation evaporators
  • Mechanical Vapor Compressor
  • Fertilizer production

Country : Norway

View
Concentration de ferment lactique
Concentration of lactic ferment
  • Falling film and forced circulation evaporators
  • Operation in Mechanical Vapor Compression
  • Food Installation
View
Concentration de protéine issue de luzerne
Concentration of alfalfa protein
  • MVC falling film evaporator
  • Operating in vacuum (non-protein degradation)
  • Concentrate animal feed
View
Concentration d'eaux de lavages de laines
Concentration of wool washing water
  • Falling film evaporator
  • Mechanical Vapor Compression operation
  • Ammonia stripping
  • Two parallel identical lines

Country: Australia.

View
Traitement de lixiviats
Treatment of leachates
  • MVC Falling film evaporator
  • Ammonia stripping
  • Valorisation of turbine energy
View

Technologies

  • Introduction
  • Divider
  • Evaporation
    • Falling film evaporation
    • Forced circulation evaporation
    • Flash cooling
    • Multiple effect evaporation
    • Mechanical vapour compression (MVC/MVR)
    • Thermo-compression
  • Crystallization
  • Stripping
  • Energy efficiency

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France Evaporation
Zone industrielle A rue René Cauche
59139 Noyelles Les Seclin France
tél. +33 (0)3 20 00 17 50