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NEWS
How To Choose The Oil Leaching Process?
Time:Fri-12-22 hits:
Oil pretreatment, leaching and refining are the three steps of extracting edible oil.
Different oils use different oil extraction processes.
The oil leaching process is a kind of oil production process which adopts the principle of solid-liquid extraction, and makes use of organic solvent to spray and soak the oil, so that the oil in the oil is extracted.
Oil leaching technology is widely used in oil extraction plants. More than 90% of vegetable oils are leached.
So for the oil factory, how to choose the leaching process of the leaching equipment?
Consider the following points.
1. Oil Characteristics And Oil Content
The process of rolling billet - direct leaching or extruded - direct leaching is generally adopted for oil with low oil content.
The process of spiral prepress - leaching or extruded prepress - leaching for high oil content is firstly considered, followed by secondary leaching.
For high value-added oil extraction, cold pressing - leaching can be used.
2, According To The Source Of Oil, Processing Capacity And Financial Status To Choose
For the small amount of oil, wild oil and microbial oil, can choose small investment, simple equipment, quick loading tank type leaching;
For bulk oil or raw materials imported in large quantities, such as soybeans, Canola rapeseed, etc., we can design appropriate scale, meet modern requirements and perfect leaching process and equipment, including comprehensive processing and production of related derivatives.
3, According To The Side By Side Resource Characteristics And Commodity Requirements To Choose
For plant protein products that need to be further processed, low temperature leaching and low temperature desolubilization of wet meal are determined to be adopted, or No. 4 solvent leaching process is adopted.
For side by side general feed use, leaching process at room temperature and pressure and high feed layer or decolorization can meet the product demand.
4, According To The Nature Of The Oil And Product Requirements To Choose
When it is necessary to leach the crude oil to maintain good quality and keep the useful substances in the oil from high temperature oxidation, polymerization and deterioration, such as phospholipid in soybean crude oil, vitamin E, sterol, glutamate and so on in cereal oil.
Negative pressure and low temperature operation must be considered in the selection of the mixed oil evaporation system in the leaching process during the removal and utilization in refining.
About the leach:
At present, the commonly used in the industry is the horizontal leach, easy to operate, small footprint, suitable for medium production;
Ring leach is suitable for larger yield;
The chain type leaker has high production loss, large footprint and less use at present.
The tank group leach is a simple old leaching equipment, which is seldom used.
