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Extracting Jatropha Oil
Extraction of oil from Jatropha seeds is done in a manner similar to that for most other oil seeds. The ripe seeds are allowed to dry, when they split open and discharge the seeds.
The seeds are dehulled after harvesting. Dehulling can be done by hand (laborious) or, more commonly, by machine. Small-scale hand-operated dehullers are also available. The dehulled seeds are cleaned, cooked and dried prior to oil extraction. Cooking is done to coagulate protein (necessary to permit efficient extraction), and for efficient pressing.
The first stage of oil extraction is pre-pressing, normally using a high pressure continuous screw press – called the expeller. Extracted oil is filtered, and the material removed from the oil is fed back into the stream along with fresh material. Material finally discharged from the press, called Jatropha cake, contains 8-10% oil. It is crushed into a coarse meal, and subjected to solvent extraction with heptane to extract further oil.
Jatropha oil extraction can be divided into two main stages:
Related Links
- Introduction to the Biofuel Industry
- Properties of Jatropha
- Characteristics of Jatropha
- Extracting Jatropha Oil
- Pre-extraction of Jatropha Oil
- Extraction of Oil from Jatropha Seed
- Filtration & Purification of Jatropha Oil
- Clarification of the Oil
- Getting Clean Jatropha Oil
- Refining the pure Oil
- Typical Processes & Equipments for Jatropha Oil Refinery Plants
- Removing the toxins from the Meal
- Uses of Jatropha Meal
- Properties of Jatropha Oil
- Global Biodiesel Production and Capacity
- Global Market View on Jatropha
- Strategies for Financing
- Status of Jatropha in Asia
- Status of Jatropha in Europe
- Status of Jatropha in Africa
- Status of Jatropha in South America
- Status of Jatropha in North America
- Status of Jatropha Oil Production in India
- Genetic Engineering in Jatropha
- Status of Genetic Engineering of Jatropha in India
- Present Market Scenario for Jatropha
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