Oil Expeller Machine can be used with almost any kind of oilseeds and nuts. Offer oil expeller machine, oil extraction machine, oil refining machine and some other edible oil mill machinery....
Oil Expeller Machine can be used with almost any kind of oilseeds and nuts. Therefore, in a multi-purpose plant built to process different types of raw materials and not only soybeans, the expeller process may prove advantageous. The process is relatively simple and not capital-intensive. While the smallest solvent extraction plant would have a processing capacity of 100-200 tons per day, Oil Expeller Machines are available for much smaller capacities, from a few tons per day and up.
The main disadvantage of the screw-press process is its relatively low yield of oil recovery. Even the most powerful presses cannot reduce the level of residual oil in the press-cake below 3 to 5%. In the case of oil-rich seeds such as sesame or peanuts this may still be acceptable. Furthermore, most of the oil left in the cake can be recovered by a stage of solvent extraction. Such two stage processes (pre-press/solvent extraction) are now widely applied. In the case of soybeans, however, a 5% residual oil level in the cake represents an oil loss of about 25%. Solvent extraction of the cake would not be economical, because of the bulk of material which must be processed. Pre-press/solvent extraction processes are, therefore, not applied to soybeans.
In the case of soybeans, the commercial value of the meal is usually higher than the income from sales of the corresponding quantity of oil. The quality of the meal is therefore a factor of particular importance in the selection of a processing method for soybeans. In this respect, the oil expeller machine process has several disadvantages. The first is the poor storage stability of the press-cake, due to its high oil content. Furthermore, the extreme temperatures prevailing in the oil expeller machine may impair the nutritive value of the meal protein, mainly by reducing the biological availability of the amino acid lysine. At any rate, expeller press-cake is not suitable for applications requiring a meal with high protein solubility.
Offer oil expeller machine, oil extraction machine, oil refining machine and some other edible oil mill machinery. If you are interested in our products, please feel free to contact us.
