Solvent Extraction
LM Extractor
In an LM Extractor, the material enters through an inlet hopper and is swiftly saturated with miscella.
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Solvent Extraction
Solvent Recovery
Solvent vapours mixed with air depart the extractor. Solvent vapours mixed with water vapour, depart distillation. A mixed water/solvent liquid stream departs distillation. The purpose of the solvent recovery process is to condense the solvent vapour and water vapour. Once this is done, it’s goal is to also then physically separate the liquid water from the liquid solvent such that, the solvent can be recycled back to the extractor, and the wastewater can be safely discharged from the plant. Desmet Ballestra enhances the sizing and design of the solvent recovery equipment with its contemporary OptiSim software tools so that maximum efficiency is achieved.
- The counter current, split flow vacuum condenser maximizes vacuum to enable maximum heat recovery of DT exhaust vapours in the first stage evaporator.
- The stripper pre-condenser ensures heat recovery of stripper exhaust vapours in order to heat the solvent before going to the solvent seater.
- The vacuum condenser steam ejector exhausts vapour heat is fully recovered in the wastewater stripper.
- The efficient two-stage wastewater stripper helps minimize solvent in water effluent.
- It requires only one pump for pumping the solvent into the extractor.
