I have just read of a test for the conversion of biodiesel, which quickly identifies biodiesel which has poor quality conversion of oil to biodiesel.
The discussion is located at: http://biodiesel.infopop.cc/eve/foru...351#6791034351
The procedure basically requires that a 3 mL sample of the biodiesel is dissolved in 27 mL of methanol. If the methanol goes cloudy and eventually some oil drops out of the methanol, it is not a high conversion biodiesel and the amount of oil dropped out is proportional to the amount of oil in the biodiesel. If the methanol clears rapidly, with no oil dropping out of solution, the biodiesel has a very high % conversion.
This probably works because biodiesel is more soluble in methanol than triglycerides, diglycerides or monoglycerides. The amount of oil and the amount of methanol allow the biodiesel to dissolve but not the oil components.
This is good news, a simple test for oil - biodiesel conversion. Repeatable and reliable.
This test was first proposed by Jan Warnqvist.
Thanks to Tilly, and alter ego Mickey Mouse, for verifying this test works, and works well.
Regards,
Tony
The discussion is located at: http://biodiesel.infopop.cc/eve/foru...351#6791034351
The procedure basically requires that a 3 mL sample of the biodiesel is dissolved in 27 mL of methanol. If the methanol goes cloudy and eventually some oil drops out of the methanol, it is not a high conversion biodiesel and the amount of oil dropped out is proportional to the amount of oil in the biodiesel. If the methanol clears rapidly, with no oil dropping out of solution, the biodiesel has a very high % conversion.
This probably works because biodiesel is more soluble in methanol than triglycerides, diglycerides or monoglycerides. The amount of oil and the amount of methanol allow the biodiesel to dissolve but not the oil components.
This is good news, a simple test for oil - biodiesel conversion. Repeatable and reliable.
This test was first proposed by Jan Warnqvist.
Thanks to Tilly, and alter ego Mickey Mouse, for verifying this test works, and works well.
Regards,
Tony
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