Cryogeny,VOC recover system

Type of industries: Paint, Pharmaceutic, Chemical, Aeronautical, Auto, Mechanical, Recycling, And so on…


To recover the maximum of solvents emitted in the air and give them back to the production. Usually used to recover expensive organic solvents, or clean the air of robotized painting rooms. Also interesting when some type of solvent need a very high temperature to be destroyed. The process temperature inside the machine will vary, in function of the type of solvent, from -40°C (with just special compressors: world patent ) to -180°C (with the help of liquid nitrogen). In this last case, the liquid nitrogen consumption is remarkably low.

Solvent recovery

The condensate is collected regularly and stored in containers provided for that purpose. A small simple decantation system regularly and fully automatically separates the solvent from the water. Depending on the type of solvents used and the specific request of the customer, a finer distillation (option) allows to separate purer solvents. The distillate is then sent (automatically) in different storage tanks.
The distillate is then used for:

  • The cleaning of the parts.
  • The replacement of some solvents used for production.

What amount of recovered solvent are we talking about?

The manufacturer gives a result greater than 98% recovery of solvents emitted into the air. But even if we rely on 50%, the system is interesting, provided the treatment of solvent obtained is economically viable. The use in closed circuit assure, of course, an optimal recovery as we have NO EMISSION in the atmosphere.

What are the annual running costs?

Because of the use of a coolant (Freon 507A here), two annual reviews are required. Some of those controls are: pressure tap, check of levels, change of filters (air, water). This section of the revision can be made even by operators briefly trained by us, allowing a real and reassuring independence.