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Getting Clean Jatropha Oil

Sedimentation:

Sedimentation is a simple and cheap way of cleaning by using the earth’s gravity: at the end of the sedimentation process, the solids settle at the bottom of the tank. It is a cheap cleaning method because no hardware has to be purchased, only a storage tank large enough to keep the oil about a week with little or no flow.

This process is however only recommended for small processing capacities of about one ton of seed per day.

Centrifugation

Centrifugation is a process that involves the use of the centrifugal force for the separation of mixtures. More-dense components of the mixture migrate away from the axis of the centrifuge, while less-dense components of the mixture migrate towards the axis.

Centrifugation is a much faster method for particle separation than sedimentation. It must be noted however that centrifugation hardware is relatively expensive for small scale processors.

At the end of the above steps in the filtration process, the Jatropha oil is ready for refining.

 

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