Soybean Oil Refining Machine

Ruian Every Machinery Co., Ltd. is one of the most experienced manufacturers and suppliers of soybean oil refining machine in China. Please feel free to buy cheap soybean oil refining machine from our factory. Contact us for more details.

Soybean oil, peanut oil, and sesame oil are staple oils in my country. If the quality of raw materials is good and the oil extraction process is reasonable, the quality of crude oil is better, and the free fatty acid content is generally lower than 2%, which is easy to refine.

1. Crude edible oil refining process (batch type)

soft water→Desolvation→Filtration of crude oil→preheating→hydration→stationary sedimentation→separation--→water-containing degummed oil→drying→rough refining edible oil

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Oil recovery ←-- Oil foot treatment ←-- Oil-rich oil foot

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Lean oil foot

Operating conditions: the filtered crude oil contains no more than 0.2% impurities, the hydration temperature is 90-95°C, the amount of water added is 3-3.5 times the colloid content of the crude oil, the hydration time is 30-40min, the sedimentation and separation time is 4 hours, and drying The temperature is not lower than 90°C, and the operating absolute pressure is 4.0 kPa. If crude oil is refined and leached, the precipitation temperature is about 160°C, the operating pressure is not greater than 4.0kPa, and the precipitation time is 1~3 hours.

2. Refining process of refined edible oil (continuous deacidification, intermittent decolorization and deodorization)

phosphoric acid lye

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Filtration of crude oil-→preheating-→mixing-→oil-alkaline ratio-→mixing reaction-→desoaping-→soap stock

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Filtration←-distillation deodorization←-filtration←-adsorption decolorization←-dehydration←-washing←-soft water

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Refined edible oil Water vapor Waste clay Adsorbent Waste water

Operating conditions: filtered crude oil contains no more than 0.2% impurities, lye concentration is 18~22°Bé, excess alkali addition is 10%~25% of theoretical alkali amount, and sometimes 0.05%~0.20% of oil amount is added first Phosphoric acid (concentration is 85%), the soap removal temperature is 70~82℃, the washing temperature is about 95℃, and the amount of soft water added is 10%~20% of the oil. The adsorption decolorization temperature is 80-90℃, the operating absolute pressure is 2.5-4.0 kPa, the operation time at the decolorization temperature is about 20 minutes, the amount of activated clay added is 2.5%-5% of the oil amount, and the filtration temperature when separating clay is different. Greater than 70°C. In the decolorized oil, p<5 ppm, Fe<0.1ppm, Cu<0.01ppm, no clay, deodorization temperature is about 230°C, operating absolute pressure is 260~650Pa, stripping steam flow rate is 8~16 kg/t h, The deodorization time is 4-6 hours, the amount of citric acid (5%) added is 0.02%-0.04% of the oil, and the safe filtration temperature is not higher than 70°C.

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