Henan Glory Oils & Fats Engineering Co., Ltd
Glory - Oil Solvent Extraction Plant
Solvent extraction plant is a better way to extract oil from oil seeds, and after extracting, the oil residue rate in meal will be less than 1%. Solvent extraction method is very suitable for the oil seeds with low oil content rate. Solvent Extraction is to use n-hexane to soak the oil cakes, then the oil in cakes will be dissolved in n-hexane, at last, pump the mixed oil, also called miscella. The n-hexane will be evaporated later from the miscella, then by condensing, it can be recycled and used over and over again.
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And for the oil solvent extraction plant, the raw materials have two kinds:
- The pressed oil cake from the oilseed pretreament &pre-pressing plant, such as the peanut cake, sunflower seed cake.
- The oil seeds which have been pretreted, can be processing in oil solvent extraction plant directly, such as the soybean, the rice bran.
Different type of solvent extractor:
- Below 20t/day, we use the small scale tank type extractor.
- From 20t/day to 600t/day, we use the rotocel extractor.
- Above 600t/day, we use the loop type extractor
The main machines used in the solvent extraction plant：
- Solvent pumps: continuously spray solvent to the rotary-type extractor
- Roary extractor: Spray and soak the pre-pressed cake with solvent so that oil fats can be dissolved in solvent(form miscella). After processing, you can get wet meal and miscella (mixed oil).
- DTDC: used to separate the solvent from the wet meal.
- Miscella tank 1st: pump the miscella (oil with solvent) in to the miscella 1st , and then add 10% saline water to it. The phospholipid and impurities in the miscella will react with the saline wter, at last the reactant precipitate, reaching the goal of purifying.
- Miscella tank 2nd: the purified miscella will be pumped into it.
- Miscella stripping: it will remove the remaining solvent in miscella. And the solvent will be discharged to condenser for recycling.
- condensers: used to cooling the solvent gas separated from the wet meal and miscella for recycling.
- Capacity 30-500T/D
- Residual oil in meal ≤ 1%
- Solvent consumption ≤ 2Kg/T (No.6 solvent oil)
- Crude oil moisture and volatile matter ≤ 0.30%
- Power consumption ≤ 15KWh/T
- Steam consumption ≤ 280KG/T (0.8MPa)
- Finished meal moisture ≤ 13% (adjustable)
- Residual solvent in finished meal ≤300PPM (qualified detonated experiment)