Ut tellus dolor, dapibus eget, elementum ifend cursus eleifend, elit. Aenea ifen dn tor wisi Aliquam er at volutpat. Dui ac tui end cursus eleifendrpis.
Mechanical expelling is usually followed by the extraction of oil, which is often trapped in the oil cake. The amount of oil trapped varies from 6% to 8%. If this cannot be used as a resource, modern processors opt for Solvent Extraction, a scientifically engineered process that leads to the efficient extraction of the remaining oil and the utilization of every seed to the fullest.
At Sudarshan Engineering Works, we design and supply complete Solvent Extraction Plants that deliver maximum yield, minimal solvent loss, and consistent product quality. Built on decades of process innovation and practical industry experience, our plants are tailored for soybean, sunflower, cottonseed, rice bran, palm kernel, mustard, and other oil-bearing materials.
Solvent extraction is the extraction of oil and fat from material by means of a solvent in the process of oil and fat recovery. The extraction technique utilizes hexane, a solvent that is considered safe for food use, to dissolve and extract the fats and oils that are still present in the oil cake and the rice bran after the mechanical expelling process. Subsequently, the solvent-oil solution (generally referred to as miscella) is separated by the processes of evaporation and distillation, and the solvent is then recovered and reused within a closed-loop system.
This method guarantees:
• High-protein de-oiled meal suitable for animal feed
The process begins with the oil cakes that are already obtained from expeller units, or it can also start directly with rice bran and other high-oil materials.
The preparation stage involves:
The material that has been prepared is put into a continuous extractor (Rotocel / Loop / Belt type) for processing.
At this stage, the Hexane solvent goes through the material bed, which yields the oil and creates a liquid mixture called miscella.
The stage is engineered for the greatest contact and percolation efficiency, which will result in the almost total extraction of the remaining oil.
The de-oiled cake that has gone through the process contains small amounts of solvent and heads to the Desolventizer-Toaster.
Steam is used to vaporize the solvent while, at the same time, the meal is made more flavorful and safe for animal consumption through gentle toasting.
Heated miscella in evaporators and distillation columns helps in the solvent separation from crude oil.
The solvent that has been recovered is turned into a liquid and sent back to the extractor, thus guaranteeing high efficiency and the lowest solvent loss.
The desolventized meal is then cooled, dried, and taken to storage.
The meal has now lost all the solvent and is protein-rich, ready for either livestock feeding or value addition.
Solvent Extraction Plants have been set up in the following industries for processing:
