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Seed Oil milling & Extraction Plant
Oil
milling including seed storage, seed cleaning, cooking and
conditioning followed by mechanical crushing. The crude
oil may be directly consumed after filtration and oil cakes
go for further oil recovery & then to cattle feed.
Solvent Extraction Plant
SEP
has various steps which include raw material preparation, extraction, miscella distillation, meal desolventisation. The
raw materials could be seeds, bran or oil cakes.
- Raw
material preparation : The seed is first cleaned and
passed through cracker mill to give two to six pieces
of seed. These pieces are cooked and flacked to bring
free oil to surface for easy extraction. Flaked material
goes either for direct extraction after moisture and temperature
control or to Expander Extruder for free oil recovery
and further oil cell rupturing to give porous extruded
collets ready for extraction. These collets are cooled
before feeding to extractor. The
bran is also cleaned and then compressed together to form
pellets which are also cooled before feeding to extractor.
The cakes are broken into smaller pieces before feeding
to extractor.
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Extraction- Collets/pellets/flakes/cake and N-Hexane
are fed to extractor in counter current flow under regulated
conditions of temperature,vacuum,circulation flow rates
etc and extraction is carried out in different stages
to give Miscella & Meal ;
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Distillation - Miscella is passed through continuous
3 stage distillation process to separate Oil and recover
N - Hexane; and
- Desolventisation
- Meal is desolventised and toasted to remove and
recover the solvent.
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