Hello Chuck >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
You should start with virgin oil. Start with minimum variables, then add them one by one as required. Start here: "Where do I start?" http://journeytoforever.org/biodiesel_make.html#start >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?) For beginners, you'd best avoid anything that titrates at more than about 5 ml 0.1% NaOH solution, and 2.5 to 3 ml would be better. No oil is truly unprocessable, but whether it's worth your bother is another matter. >*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?) As Mike said, heat, stir, titrate and go. >*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?) The Journey to Forever website is specific about it in each case, but you don't specify which chemicals you mean. NaOH, methanol, isopropanyl should be pure, probably you're asking about those. This shouldn't be interesting you yet, if ever, you should be minimising the variables, not looking for new ones. >i think that's it for now. i wouldn't be surprised if most of these >questions were already addressed on the journeytoforever website Yes. Best wishes Keith >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 _______________________________________________ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
