Jan, Wouldn't you expect that > 500 ppm water would be picked up in any recovered ethanol, due to even a small amount of soap production? also if the ethanol used is for automobile use, is it an E-85 blend, ie, 15% gasoline? If so I would think that the gasoline would partition into any biodiesel made from this alcohol source. How would the gasoline impact the biodiesel?
Jan Warnqvist wrote: > Hello Bias Antonio, > Ken is right, the NaOH dissolves a lot quicker in ethanol if heated. In > order to make ethyl esters the quality of the reactants has to be high: > ethanol min 99,5% pure and > oil with a water content < 500 ppm and > a stochiometric surplus of ethanol of at least 75% and why not 100% ? > The economy of this is depending upon your possibilities of recover the > excess ethanol. > Good luck to you > AGERATEC AB > Jan Warnqvist > ----- Original Message ----- > From: "Ken Provost" <[EMAIL PROTECTED]> > To: <Biofuel@sustainablelists.org> > Sent: Thursday, January 26, 2006 4:55 AM > Subject: Re: [Biofuel] ethanol method > > >> On Jan 25, 2006, at 11:00 AM, Blas Antonio Guanes wrote: >> >> >>> the problem is that, methanol costs 4 $ and pure ethanol >>> for car costs 0.52 $, NaOH is gotten in any part.. KOH is >>> sold in bags of 25 kilos for soap industry.. Here in Paragua >>> it is difficult to get chemical products. for that reason I want >>> know how I can make with oil, ethanol and NaOH >> >> Have you tried dissolving NaOH in pure anhydrous ethanol? It is >> difficult. If you can dissolve the required amount (perhaps by >> boiling the ethanol/NaOH mixture under reflux), you could possibly >> make biodiesel out of very clean dry oil. If you only use 3.5g NaOH >> per liter of oil, or if your ethanol or oil contain any water, you will >> probably never achieve separation of a glycerine phase. All your >> ingredients go into a clear solution, and just stay that way forever. >> Until glycerine separates, you don't have biodiesel. >> >> -K >> >> _______________________________________________ >> 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/ > > > > -- Bob Allen http://ozarker.org/bob "Science is what we have learned about how to keep from fooling ourselves" — Richard Feynman _______________________________________________ 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/
