Solvent Extraction Plant :

Our Solvent extraction plants are used to extract oil from Rice Bran and All types oil cakes

• sunflower,

• jatropha,

• groundnut,

• Soya Bean cake/flakes etc.

Solvent Extraction Process

The process consists of extracting most of the oil from prepared raw material by Counter Current Extraction for a calculated period of time. Extracted meal from extractor is transferred for recovery of entrapped solvent to desolventizer toaster, where solvent from the meal is removed as well as the desolventized material is conditioned by controlling and adjusting the temperature and moisture. The conditioned desolventized toasted meal is sent for bagging. Vapors from desolventizer toaster are carried to condenser for vapour / solvent condensation & recovery of solvent via Economizer. Solvent after removal of moisture is re-circulated. Miscella after fine separation is pumped / feed to distillation section comprising of Evaporator, Heater and vapor condensing unit. Miscella is transferred to Evaporator via economizer where miscella is initially heated up and part of solvent is recovered by utilizing heat vapors from desolventising unit.

Maximum solvent from oil – solvent mixture is recovered at distillation stage. Final solvent traces from oil coming out from distillation zone are recovered in oil stripper working under vacuum.

In this plant, all extraction operations are carried out in closed equipment working under vacuum to avoid any solvent loss by evaporation. Air entrapping with the system along with solvent is passed through recuperation system where solvent traces from outgoing vent gases / vapors are recovered by absorbing the solvent in absorbing liquid. Hexane from solvent absorbent is recovered by heating the mixture and condensing solvent. This solvent free absorbent oil is again used for recuperation / recirculation.