Preparation of seeds for extraction which includes pre-pressing for high oil content seeds.Įxtraction of oil from the prepared material with the aid of food grade solvent.ĭesolventising-toasting of the de-oiled seed /meal- often combined with drying and cooling of the said meal.ĭistillation, to remove the solvent from the extracted oil. The oil/solvent blend is next heated to 212º F (100º C) to distill off the solvent. The solvent is then “flashed off” by heating the oil in a sealed chamber.
The ground seed or cake is then purged or washed with a petroleum distillate (the most common chemical used is hexane) which releases the oil in the seed. Solvent extraction is achieved through the grinding of seed. Special self-cell solvent spraying ensures the best effect during extraction. There is material turnover in the process of extraction to make the extraction uniform and thorough. This avoids meal bridging, un-uniform wet meal discharging and extends the serviceable life of the wet meal conveyor.Ĭomposed of pre-extraction, extraction and draining sections. The wet meal is discharged by the material discharger which continuously discharges the wet meal onto the wet meal conveyor. Simple in structure with stable performance Īdditional horizontal grid plate prevents the miscella from flowing back into the material cell to ensure the best extraction effect We will show you some of the extraction workshops below.Īdvantages of KMEC Solvent Extraction Technics So far, we have help set up a great number of solvent extraction projects for various raw materials of vegetable oil seeds and nuts. With state-of-the-art thchnology of solvent extraction, a team of experienced professionals, and skilled labour, we ensure only superior quality products are provided to our clients at most competitive prices! With years' pratical experience, KMEC can always find the most suitable related solvent extraction equipment for you. We offer turnkey solutions for solvent extraction plant starting from the plant design and daily running. KMEC is the leading manufacturer and supplier in the field of solvent extraction and edible oil production in China and also enjoys good reputation across the world. It is relatively efficient and reliable, and this is one reason why solvent extraction is the primary means of separating large tonnages of oil from protein meal. The solvent extraction method will remove all but about ½% of residual oil, uses less hp, and requires less maintenance. For such processes, it is possible to achieve oil yields in excess of 95% with a solvent recovery of over 95% which in compare to 60 to 70% oil yield by mechanical expeller pressing method. Hexane-based processes have been in commercial operation for a long time. Industrial oil processing for the edible oil generally involves the solvent extraction step which may or may not be preceded by pressing. Solvent extraction is a chemical oil extraction method to process oil out from vegetables, oilseeds and nuts by solvent, and Hexane is the preferred choice.
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