The drying of vegetable oils is, I believe, an oxidation process and, as
usual, exothermic.
The interior of a pile of rags is well insulated as regards heat
conduction there is a large surface ares eg a high rate of oxidation.
Heat can't escape, temperature rises, reaction rate rises, smoke, flames.
Perhaps something for Myth Busters to look into.
Piet
On 25/01/2011 23:40, Crispin Pemberton-Pigott wrote:
Desiccation.
Crispin
++++++++
On Monday 24 January 2011 23:44:30 Peter verhaart wrote:
If Jatropha oil is a non drying oil (like castor oil), you are in deep
oil. If Jatropha oil is a drying oil, you might try using a drying
accelerator for paint and/or place the briquettes in an oven.
Hi Peter
I don't know whether Jatropha is a drying oil. I believe linseed is and
cotton rags allowed to dry with linseed on then heat up and can self ignite,
Does anyone know the mechanism for this?
AJH
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