Small Hydraulic Canola Oil Extraction Plant in Ethiopia

How is canola oil extracted?
Canola oil exports have more than doubled in the last decade and global demand is forecasted to rise by 40% in 2025 ( Tiwari et al., 2020 ). Expeller pressing is the main process of canola oil extraction from canola seeds. Chemical or solvent extraction using hexane is also used to extract the residual oil from the pressed cake.
How to process canola seed?
For processing Canola seed, the basic equipment we need are Seed Cleaner, Seed Cooker/Kettle, Oil Press, Filter Press, Steam Boiler, Screw Conveyors & Bucket Elevators. The following are steps involved in Canola Oil Extraction Plant: Step 1. Seed Cleaning Canola Seeds are separated and cleaned to remove impurities such as dust, metal, plant stalks.
How is canola oil pressed?
In Mechanical Press, Canola oilseeds are pressed in a series of Screw Presses / Expellers. This process uses no chemical and leaves about 5-7% oil in the residual Cake/Meal. This pressed cake can be subjected to Solvent Extraction for further Oil Extraction. Step 4. Solvent Extraction
How effective is Ultrasound-assisted extraction of oil from canola seeds?
Fang et al. [ 67] investigated the effectiveness of ultrasound-assisted extraction of oil from canola seeds obtaining a maximum oil yield of 47% by employing a liquid to solid ratio of 1:2, an extraction time of 60 min, and ultrasound power of 400 W.

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