Reduced size of Agitated Thin Film Evaporator
with volume reduction by tubular evaporation.

A Falling Film Evaporator (FFE) is a vertical shell and tube heat exchanger with a vapor- liquid separator mounted at the bottom.
The liquid to be concentrated is fed at the top of the heated tubes and distributed in such a way that it flows down on the inside surface of the tubes as a thin film, under the influence of gravity. As the film gets heated, the vapors generated flow co-currently. The drag of vapors increases the turbulence and improves heat transfer performance. The balance liquid and vapor are separated in the vapor- liquid separator.

'Small holdup ensures quick response to changes in operating conditions, quick start-up and an easy switchover'


  • Suitable for heat sensitive products
  • Gentle evaporation with a short residence time in the evaporator
  • Can operate under reasonable vacuum
  • Multiple effect arrangement provides steam economy


  • Concentration of dilute solutions of heat sensitive products containing water or solvents in applications such as plant extracts in water or organic solvents
  • As a reboilier to a distillation column
  • Recovery of solvents from contaminants
  • Purification of biodiesel
  • Pre-concentration before ATFE or ATFD

We have well equipped Pilot Test Centres in Nashik, India & Geleen, the Netherlands.


What sets Technoforce apart from the rest