Advantages of the Leaching Method for Oil Production
Good Quality of MealDuring the oil production process using the leaching method, the operating temperature of relevant processes is relatively low. This results in a relatively small degree of protein denaturation in solid materials, and accordingly, the quality of the meal is better. This is beneficial for extracting vegetable protein from the meal or using the meal as feed.
Low Residual Oil Rate in MealWhen using the pressing method to produce oil, the temperature in the pressing chamber cannot be very high. The pretreatment process cannot completely destroy the oilseed cells, and protein denaturation is also incomplete. Therefore, with the pressing method, the residual oil rate in the pressed cake is relatively high, generally 5% - 8%. If the leaching method is adopted for oil production, either direct leaching or pre - press leaching can be carried out, and the residual oil rate in the meal after leaching can be controlled below 1%.
Low Production CostCompared with the pressing method for oil production, the production line used in the leaching method for oil production is more complete, with a higher degree of mechanization, making it easier to achieve production automation and improving production efficiency. At the same time, the leaching workshop requires fewer operators, liberating the labor force. The energy consumption of the leaching method for oil production is also relatively lower. Therefore, the production cost of the leaching method for oil production is lower than that of the pressing method.
Leaching Method for Oil Production Process
The basic process of the leaching method for oil production is to process the oilseeds, then leach them with an organic solvent. The liquid part obtained from the leaching is called miscella, and the solid obtained after leaching is called wet meal. The miscella is then distilled and evaporated to obtain crude oil. The wet meal is dried to remove the solvent, and the resulting product can be used as edible meal or meal for feed. The solvent gas evaporated and distilled can be condensed and cooled for recovery, and the recovered solvent can be recycled.
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Our company specializes in the R&D, production and service of oil pressing machinery, and is a core service provider in the field of oil production equipment. We deeply focus on the processing needs of vegetable and animal oils, and have built a diversified product system covering screw oil presses, low-temperature cold pressing equipment, negative-pressure melting equipment and palm fruit-specific production lines. We also provide full-process supporting equipment for pretreatment, refining and packaging, which is suitable for all scenarios from family workshops to large-scale factories.
