hexane sunflower oil extraction in zambia
- Usage: Sunflower Oil, Cooking Oil
- Production Capacity: 1-100T/DAY
- Voltage: 380V
- Dimension(L*W*H): 2100*1300*1850MM
- Weight: 1500 KG, 1500kg
- Core Components: Pressure vessel
- Oil type: Sunflower Oil
- Application: Oil Production Line
- Item: Industrial Oil Extractor
- Function: Making Edible Oil
- After-sales Service: Engineers available to service
- Advantage: High Oil Yield
- Raw material: Sunflower seed seed,Sunflower
- Material: Stainless Steel/Carbon Steel
- After Warranty Service: Online support
- After-sales Service Provided: Field installation, commissioning and training
Zambia: Farmer boosts income by processing oil from sunflower
Mrs Kamuwikeni can sell a 25-kg bag of sunflower for 150 Zambia Kwacha ($6.60 US). Or she can process that bag into 10 litres of cooking oil and sell it for 430 Kwacha ($19 US). It’s seven o’clock in the morning and Naomi Kamuwikeni is quickly walking to the oil expeller at Gondar market. She is carrying sunflowers to process into oil.
Of all the four tested edible oils, only sunflower oil was found to contain the residual hexane that exceeded the maximum residue limit (MRL). Besides, the residual hexane detected in the large calibration range (0–938 mg kg −1) is significantly different as compared to the results from the small calibration range (0–68 mg kg −1).
Upscaling Local Content in the Edible Oils Sector | ZAM
Edible oils are sourced mainly from vegetable products and in Zambia, the major oilseed used in the production of edible oils is soybeans which accounts for 60% of local production, cotton seed oil extraction accounts for 19% while sunflower oil accounts for 15%. The remaining 6% is sourced from minor oilseeds such as ground nuts.
To plant in rows, space the seeds about 15 cm apart in a shallow trench between 2.5 and 5 cm deep. In sandy soil, 5cm deep is better. Cover and water until the seeds sprout in 7 to 10 days. When first true leaves appear (the second set of leaves); thin plants to about 60 cm apart. Depending on the variety, sunflowers will mature and develop
Sunflower production up 47% – but falls short of market demand
Meanwhile, National Union for Small Scale Farmers in Zambia-NUSFAZ says the current production of Sunflower is not enough to satisfy the needs of the processors of edible oils and stock feed. Union Executive Director Ebony Loloji said edible oil manufacturers have the capacity to process in excess of 80,000 metric tonnes but production is less than this capacity.
Hexane (C6H14) is a hydrocarbon extracted from crude oil. In fact, hexane is similar to the gasoline we put in our cars; it’s just a slightly lighter molecule made of six carbon chains—compared to octane’s eight. In its pure form, hexane is a colorless solvent that evaporates easily and dissolves only slightly in water.
Green solvents and technologies for oil extraction from oilseeds
Oilseeds are crucial for the nutritional security of the global population. The conventional technology used for oil extraction from oilseeds is by solvent extraction. In solvent extraction, n-hexane is used as a solvent for its attributes such as simple recovery, non-polar nature, low latent heat of vaporization (330 kJ/kg) and high selectivity to solvents. However, usage of hexane as a
Sunflower is crushed for oil recovery via one of two process methods, hard pressing or prepress solvent extraction. Hard pressing relies upon exerting high pressure on the prepared seed to separate oil from the solids fraction, historically recovering about 25% oil from the seed. Prepress solvent extraction relies on exerting medium pressure on
- Which extraction method is best for sunflower seeds?
- Therefore, prepress solvent extraction, with the highest oil recovery yield, is the process method utilized today for the majority of the sunflower seed that is crushed globally.
- What is a prepress solvent extraction method in a sunflower crushing plant?
- In a typical sunflower crushing plant using the prepress solvent extraction method, the initial steps of seed pre-cleaning and seed drying are located in the seed receiving section of the facility, prior to seed storage.
- How does hexane extraction work?
- As the solvent (usually hexane) passes down through the bed of oil-bearing material, the oil is dissolved in the solvent and carried away. When properly carried out with stages of extraction (as will be described), the extraction process results in a very good separation of the edible oil from the solids or nutritious meal fraction.
- What is the difference between solvent extraction and hexane extraction?
- In comparison, solvent extraction with hexane (the primary solvent used worldwide) will remove all but about ½% of residual oil, uses less horse power, and requires less maintenance. It is relatively efficient and reliable, and this is one reason why solvent extraction is the primary means of separating large tonnages of oil from protein meal.
