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Posted by chriscase on Wednesday, October 22, 2008 at 00:54:55 :
In Reply to: OT Alcohol and diesel posted by D Sherman on Tuesday, October 21, 2008 at 14:47:22 :
Not sure if I have all of the chemistry right, but the methyl alcohol is used in the vegetable oil to break the chains of tri-glycerides into single units of oil. The left over component of the triglyceride is glycerine, a useful by-product. Perhaps your antique oil had some degradation into other oily-things, and the methyl used to denature your alcohol did some chemical reactinionizing? Making glycerine?
I do know that home bio-dieseling needs one step of critical a n a l ysis to get the methyl amount correct, maybe too much can cause minor grief?
Google for <bio-diesel, methyl, glycerine> ?
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