first off, many thanks to all those people on the list with experience in biodiesel who take the time to answer what must often seem like silly questions. that said, i have a few of those silly questions to ask myself. we've just started producing test batches of biodiesel from wvo with an interested group in the northern philippines. as we continue, i'm hoping to make future trials as beneficial to our learning process as possible. in that respect here are the issues i would appreciate insight on (or the link to where the info already is):
*heavily used and reused....and rereused WVO (is there a point at which the oil has been used so much that it becomes unprocessable? any specific issues increase?)
*mixing types of oil including solids like lard and fats in one batch (i've read examples mentioning mixed batches, but what issues do we need to be mindful of?)
*chemical purity (are the numbers given on journey to forever based on 100% pure and so if only 94% pure should we adjust accordingly? is there a point where the chemical is too impure, like 30%pure, to even adjust?)
i think that's it for now. i wouldn't be surprised if most of these questions were already addressed on the journeytoforever website but i haven't found them yet due to limited internet time. i'm still reading through the different types of reactors so hopefully we could more easily process small test batches. thanks again. its surprising this stuff hasn't caught on sooner.
Chuck
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