Castor Seed Solvent Extraction Plant

Castor seeds are grown in tropical and sub tropical regions. The castor bean consists of a capsule containing dark brown seeds and have a kernel. Castor seeds is the source of castor oil, which has a wide variety of uses. The seeds contain between 40%and 60% oil that is rich in triglycerides, mainly ricinolein. They also contain ricin, a poison, which is also present in lower concentrations throughout the castor seed solvent extraction plant.

The castor seed solvent extraction plant is part of seed processing plant which is designed to extract castor oil directly from castor seeds and beans. It extracts oils from prepressed or fully pressed cake of seeds containing more than 20% oil like castor, sunflower, peanuts, cotton seed, palm kernel, canola, copra and variety of other oilseed materials.

Castor Seed Solvent Extraction Plant Process

• Seed Cleaning
• Cooking/Conditioning
• Pre-Pressing
• Solvent Extraction

Solvent Extraction Plant Operation Sequence

• Castor seed preparation for oil extraction: including pre-pressing for high oil content seeds.
• Extraction of oil from the prepared castor materials with the aid of food grade solvent.
• The de-oiled seed /meal- often combined with drying and cooling of the said meal.
• In order to remove the solvent from the extracted oil, distillation has to be used.
• Solvent Recovery, which is reused again and again at extractor level.