In the B2B market of rapeseed oil production equipment, the choice of extraction technology is crucial for enhancing production line efficiency and product competitiveness. Solvent extraction technology has emerged as a game - changer, offering a series of significant advantages.
Solvent extraction technology involves a multi - step process. First, the appropriate solvent is selected. Commonly used solvents, such as hexane, have excellent solubility for oil. The rapeseed is then pre - treated to increase the contact area with the solvent. During the extraction process, the solvent penetrates the rapeseed cells and dissolves the oil. This process can achieve an extraction rate of up to 95%, much higher than traditional methods.
| Aspect | Cold Pressing | Solvent Extraction |
|---|---|---|
| Oil Yield | Around 30 - 40% | Up to 95% |
| Purity | Relatively low | High |
| Energy Consumption | High | Relatively low |
| Cost | High | Relatively low |
Safety and environmental protection are top priorities in solvent extraction. The use of solvents must comply with strict regulations. For example, the Occupational Safety and Health Administration (OSHA) in the United States has set clear limits on solvent exposure. A closed - loop recovery system is essential to minimize solvent emissions. This system can recover up to 98% of the solvent, reducing both environmental impact and production costs.
In practical applications, there are often some bottlenecks. For instance, residual solvents and high impurity content can affect product quality. One case showed that by adjusting the extraction temperature and time, the residual solvent content was reduced from 50 ppm to less than 10 ppm, meeting international standards.
Solvent extraction technology can also preserve the nutritional value of rapeseed oil. By precisely controlling process parameters, such as temperature and pressure, the retention rate of vitamin E and plant sterols can reach over 90%. These active ingredients are beneficial for human health and enhance the market competitiveness of the product.
Penguin Group's advanced rapeseed oil production line supports dual - mode operation. It can switch between cold - pressing and solvent - extraction modes, balancing product quality and cost - effectiveness. This flexibility allows enterprises to adapt to different market demands and achieve green and efficient production.
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