Recuperation unit is specially design for Vent Vapour Recovery By Absorption process. The non-condensable gases with mostly air get into the system during the processes like extraction, drying and distillation. These gases can cause damage to the system, and thus, have to be vented out. For this, an absorption system is attached through which the vent gases are passed through. In this absorption system, there is vegetable or specially mineral oil that completely absorbs the solvent traces in the gases. A regular check on the oil has to be carried out for the presence of volatiles and as per the requirements, has to be rejected when these levels are visible.