Curtis, You're blowing the acrolein issue out of proportion and context.
Acrolein is a product of inadequate combustion of glycerin or glycerin decay under high temperature. These are not conditions that exist in the manufacture of biodiesel. Biodieselers have occasionally talked about burning the alcohol/glycerin/FFA/catalyst mix in a traditional fuel oil furnace as a method of disposal. This would probably create an "inadequate" combustion scenario and is not recommended. That does not mean that it couldn't be done in an oxygen rich environment, such as a furnaced specifically designed for waste motor oils. But even that would have to be tested. As for high temps when refining glycerin, this is usually done in a vacuum, thereby reducing temperature, erego reducing decay. However, the energy inputs to evaporate glycerin are so intense, it's not feasible for the average biodieseler. Todd Swearingen ----- Original Message ----- From: Curtis Sakima <[EMAIL PROTECTED]> To: <biofuel@yahoogroups.com> Sent: Wednesday, May 08, 2002 1:08 PM Subject: [biofuel] Re:Acrolein_(«twas_illegible) > Well, I think I want to make a sincere plea to the > group. > > Could someone please find a way to deal with this > "acrolien" substance in the BD process?? Either by > finding a way to not have it produced... or a way to > neutralize it ... or whatever. > > When I hear "concerned" and "carcinogenic" ... I hear > EPA .. and legislation ... and "sorry boys, but making > BD in your backyark is no longer legal" > > I have never made BD in my garage in my life. But I > really (really really really!!) want to make it in the > near future (when my family/home/life cercumstances > are more conducive to it). > > And I certainly don't want to find the gates locked > when I get there. Gosh, that would suck!! > > Curtis > > > > --- Christian <[EMAIL PROTECTED]> wrote: > I«m a bit concerned with the glycerin/acrolein > topic(glycerin thermally decomposes into this > dangerous substance). I found little on this topic > (Keith and Todd) in the archives. > > --------------snip--------------- > > But still, it«s a CARCINOGENIC substance you don«t > want to mess with. > > -------------snip----------------- > > ....neither of which you want on your hands. Please > let me know what you think. > > Best to you all, > > Christian > > > > > > [Non-text portions of this message have been > > removed] > > > > > > > ===== > Join the Revolution! > http://thincnet.com/revolution9/downline/vdownline.html?9107 > > __________________________________________________ > Do You Yahoo!? > Yahoo! Health - your guide to health and wellness > http://health.yahoo.com > > ------------------------ Yahoo! Groups Sponsor ---------------------~--> > Buy Stock for $4 > and no minimums. > FREE Money 2002. > http://us.click.yahoo.com/orkH0C/n97DAA/Ey.GAA/FGYolB/TM > --------------------------------------------------------------- ------~-> > > Biofuel at Journey to Forever: > http://journeytoforever.org/biofuel.html > > Biofuels list archives: > http://archive.nnytech.net/ > > 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/ > > > ------------------------ Yahoo! Groups Sponsor ---------------------~--> Buy Stock for $4 and no minimums. FREE Money 2002. http://us.click.yahoo.com/orkH0C/n97DAA/Ey.GAA/FGYolB/TM ---------------------------------------------------------------------~-> Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuels list archives: http://archive.nnytech.net/ 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/
