1. Castor Bean Oil For Biodiesel Production - Castor Beans
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By Kevin Joey - http://castorbeans.org/
Castor oil is the oil that comes from castor beans. The castor bean contains 50% to 55% oil. The oil itself
contains a lot of fatty acids similar to those used in cooking oil, some examples of this are oleic acid,
linoleic acid, stearic acid and palmitic acid.
Learn More About Castor Beans
When you look at vegetable oils, castor oil is distinguished differently by the high level of ricinoleic acid
which is over 85%. There is no other vegetable oil that has such a high proportion of fatty hydroxyacids.
Because it has an unsaturated bond, high molecular weight 298, a low melting point of 5ºC and very low
solidification point of between -12ºC to -18ºC it is quite suitable for industrial use. The biggest reason
why this happens, is that it has the highest and most stable viscosity of any vegetable oil.
This oil has an ash content of about 0.02% the percentage for sulfur is less than 0.04% .The higher the
cetane number (CN), the better the fuel will be when used as a diesel. The CN of the majority of
biodiesel fuels is actually higher than petrol or diesel, and the cetane number of castor oil biodiesel is in
a good range for diesel engines.
Facts drawn by scientists actually show that castor oil has one of the highest CN when it comes to all the
vegetable oils, and also when you throw in all of the other biofuels they actually have numbers that are
lower than the amount for castor oil. Petro diesel is around 45, and yet for most other bio fuels, the
figure falls in the range 45 to 65.

2. However when thinking about biodiesel production, cost plays an important role and castor bean oil is
one of the lowest priced oils, which makes it quite effective to use. It has proven itself as one of the
most beneficial of all oils to use however they are still doing research to determine other variables as
well.
So… What’s Next ?
To learn more about Castor Beans, Click Here: http://castorbeans.org/