I have been making BD for a while now and have been getting a yield of 80% usable washed/dried/filtered BD per volume of initial WVO.
I just want to know if this is "good" or should I try to refine my process? For example, I start with 10 liters of WVO and after all is said and done I have 8 liters of washed/dried/filtered BD that I put in the my VW. Is this an acceptable yield from soy WVO?--what type of results should I see? --- John Harris <[EMAIL PROTECTED]> wrote: > Hi Turbo > Think you should read Kens post again. > Approx 12-14% of the volume of oil will be the > amount of methanol used in > the reaction. this displaces ABOUT the same volume > of glycerine. > If your oil is new and clean with low FFA's then if > you add 20% of the > volume of oil as methoxide you will get back > 98% of the volume of oil as biodiesel. > 2% of the volume of oil as unreacted oil which will > be in suspension in the > biod. > 12 - 14% of the volume of oil as glycerine. > 6 - 8 % of the volume of oil as excess methanol most > of which will be > disolved in the glycerine because as you found in > the archives methanol > dissolves more readily in glyc. than in bioD. > remember this only applies to > the excess methanol after the reaction - the 12-14% > methanol which has been > changed in the reaction is no longer methanol. You > do need to add excess > methanol otherwise the reaction will probably not be > complete and you will > also end up with a lot of unreacted oil. > There will also be a small amount of soaps and > caustic salts which will be > both in the BioD and Glyc. > BUT as ken said these figures are very flexible and > this is just a rough > guide. > > make some litre test batches from each new lot of > oil and you will find out > a lot. > do a search for Dr Pepper(pat pend.) on this site > http://biodiesel.infopop.net for the easy way to do > test batches. > > ----- Original Message ----- > From: "turbodiesel_vw" <[EMAIL PROTECTED]> > To: <biofuel@yahoogroups.com> > Sent: Thursday, 7 February 2002 4:18 > Subject: [biofuel] Re: What is a "good" BD yield > from WVO? > > > > o.k.--fine, > > > > I'll try and answer my own question: > > > > According to the archieves glycerine is soluble in > methanol. If you > > add 20% Methanol of which about 14% is absorbed by > the glcerine then > > an ideal BD yield should be about 86% volume of > WVO used. > > > > So if your yield is 80% or better your getting > "good" BD yield! > > > > right? > > > > > __________________________________________________ Do You Yahoo!? Send FREE Valentine eCards with Yahoo! Greetings! http://greetings.yahoo.com ------------------------ Yahoo! Groups Sponsor ---------------------~--> Get your FREE credit report with a FREE CreditCheck Monitoring Service trial http://us.click.yahoo.com/ACHqaB/bQ8CAA/ySSFAA/FGYolB/TM ---------------------------------------------------------------------~-> Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Please do NOT send "unsubscribe" messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
