Thaks for the compliment. Anyhow, I just made a mini 1 lt batch and repeating the BD preparation processs I«m seeing the glyc first produced still needs a couple of minutes to settle gather up at the bottom. More miportant still, I had also forgotten the methoxide mixed in it and would be removed if I took away the glyc. -thanks for the reminder-. I think we won«t be seeing how spiral galaxies influence the BD manufacture process for now.
Well, it takes many failures to get to a good improvement. Anyway it was worth the chat. Greetings, Christian ----- Original Message ----- From: "Keith Addison" <[EMAIL PROTECTED]> To: <biofuel@yahoogroups.com> Sent: Wednesday, May 01, 2002 4:03 PM Subject: Re: [biofuel] 2 stages... what if? (new method?) > You'll be removing some methanol too, Christian, don't forget. Which > version of Aleks's method are you using? The updated version has > quite a few changes, and one of them is that the glyc isn't removed > after the acid stage, but it is progressively removed during the > second stage (if your processor permits). > > Thankyou for explaining the spiral galaxy in my coffee, I always > wondered how it got there without a Big Bang. No, seriously, nice > explanation, you can watch it forming and see some basic principle at > work, nice to have it explained. Very interested to know if it leads > to a process improvement, that would be great, and a nice story to > tell too. > > Best > > Keith > > > >Sounds logical, (anyway I don«t know if the term "phase" really applies > >here). But it sounds unreasonable to believe the reaction taking place in > >the WVO/BD/MeOH layer will "have a way of knowing" if the layer og glycerin > >belw is 1cm, 2cm or a mile deep. > > > >I need to go back to over my books for this one. We need "hard references" > >for the "displacement of the reaction how to-s". If what you point is right, > >then centrifugating the mixture while processing (just to gather the > >glycerine together) should be enough, without havin to tap it out... > >assuming you can afford a centrifugue. And if this principle is right, > >there«s another implication: In Alek«s 2 stage method, simply stopping the > >reaction at 3/4 vol methoxide, and adding the remaining 1/4 the day after in > >the same mixture (without separating the glycerin) would be OK... and this > >is something important because each time you separate the glyc from the BD > >you might be discarding the "layer in between" (unless you store these > >layers for further processings and then separate and gather up all the > >"leftovers") Am I being clear here? I think not. > > > >The point is that in the traditional 2 stage method, after the first stage > >you separate the glycerin and remove it, taking along with it some fine > >"interphase layer" of BD with it. But if the assumtion yuo mentioned is > >right, there«d be no need for this and you could simply reheat, proceed with > >stage 2 (adding the remaining 1/4 MeOH) and finishing the reaction, and so > >you«d avoid removing the glycerin (together with avoiding the drawback of > >removing the small interphase layer of BD for every syage) just to remaove > >the whole lot of glycerin after the last stage. > > > >Regards, > > > >Christian > > > > > >----- Original Message ----- > >From: "Ken Provost" <[EMAIL PROTECTED]> > >To: <biofuel@yahoogroups.com> > >Sent: Wednesday, May 01, 2002 1:01 PM > >Subject: Re: [biofuel] 2 stages... what if? (new method?) > > > > > > > I don't have any hard references on this, but I believe the precipitation > > > of glycerine from the biodiesel reaction as a separate phase is all that > >is > > > required to shift the equilibrium. Whether a glycerine molecule is in a > > > separate droplet a millimeter away, or a separate bucket six feet away, > > > it's basically "out of the picture". > > > > > > > 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/ > > > ______________________________________________________________________________ mensaje enviado desde http://www.iespana.es emails (pop)-paginas web (espacio ilimitado)-agenda-favoritos (bookmarks)-foros -Chat ------------------------ Yahoo! Groups Sponsor ---------------------~--> Buy Stock for $4 and no minimums. FREE Money 2002. http://us.click.yahoo.com/orkH0C/n97DAA/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/
