Thanks Keith, If the silicone is not what is gelling the BD, what else can it be ? I still make BD from other suppliers without problems, but as soon as I mix any oil from this particular adress in it, it turns hard. With "hard" I mean as hard as butter in a fridge, so not jelly. Ok, but IF it is caused by the silicone, what can we do ? Because we will have to deal with this more and more in the future. Thanks again.
> Dag Pieter > > >Hello all, > >I found a new adres where I can collect quit a bit of good quality > >oil, well, that is what I thought. > >In this oil is added what we call E900 ( a european code ) which is > >dimethylpolysiloxaan, to avoid the oil from foaming when they bake > >their chips. > >From this oil I get one great big lump of solid stuff when I try to > >make BD from it. > >Can anyone please help me ? > >Of course I could go and look for another restaurant, but this E900 > >is used more and more, so I will meet this problem more often in the > >future. > >E900 is a polymere from silicone : (C2H6OSi)n > > It's used here in Japan too, we did some research on it when we first > came here. We've processed a lot of oil with silicone anti-foaming > agent in it and it hasn't made any difference. It's a very small > proportion in the oil though, I don't recall the exact figure. Maybe > they use more in the EU, but I doubt that's what gelling your > biodiesel. > > Best wishes > > Keith > > > >Met dank en vriendelijke groet, > >Pieter Koole > >Netherlands > > > _______________________________________________ > 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/ > _______________________________________________ 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/
