Here are the results of my other reprocessing tests. 1st - I used 3.5g lye and 200 ml Methanol - the biodiesel cleared and another 80-100 ml of glycerol settled out. The biodiesel on top has the appearance of clarity , but it also looked like it has a bit of methanol still left in that layer, as it appeared swirly (you know like when salt water and freh water mix and it is kind of like a heat mirage?) washing was terrible - just went totally cloudy and mayonaisse. 2nd - I tried it again with 50 ml methanol and 1g lye - some glycerol seperated out, but the biodiesel on top was still cloudy. 3rd - Used 100 ml methanol and 2g lye. Similar to previous, some glycerol settling out (roughly double the amount of the 50ml/1g test as you might expect), but still cloudy on top. So perhaps I need to use an amout in between 100ml/2g and 200ml/3.5 g? But I tried to process a new batch of the same oil with 250ml methanol and 7g lye - I got strong clear seperation of biodiesel/glycerine, but still cloudy on top. Argghhh. Keith, I am still waiting for the water to drop out of the oil that I washed - it is well mixed in there and drying only slowly, once it does I will test it. Is it normal for the water to get so hung up? Thanks for any pointers. jk Jack Kenworthy Sustainable Systems Director The Cape Eleuthera Island School 242-359-7625 ph. 954-252-2224 fax www.islandschool.org
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