Greg, Bone up on the acid/base process at JTF. Pressurized esterification is the acid side of the process conducted under pressure. It can increase yields enormously when you start to get to the really gnarly feedstocks like brown grease (60-70% + FFAs) from waste traps or just stuff that's been boiling in the hot sun for months.
We've picked up two 100# tanks to process the 100% FFAs that accumulate from the glyc recovery process. Started on them some months ago, just not enough time to complete them yet. As for the pressurizing gas, nitrogen would be perfectly sufficient. Any inert gas will do.Whatever's least expensive to you. Todd Swearingen ----- Original Message ----- From: "Greg Harbican" <[EMAIL PROTECTED]> To: <biofuel@yahoogroups.com> Sent: Monday, August 30, 2004 9:34 PM Subject: Re: [biofuel] Old propane tanks > While I have to admit, I think I have a better than average idea about making Biodiesel the non-pressurized way, from all the reading of JtF, I am intrigued about pressurized esterifications, but, don't know much about how to go about it. > > Were is a good place to start learning about pressurized esterifications, to see if it is something I might want to attempt at a future time? > > As to the pressurizing gas, would nitrogen be ok? I think it would be about the same cost as the CO2, depending on amount used, and I know that is what the local NG shaving operation uses to evacuate the lines before they start work on them. > > Greg H. > > ----- Original Message ----- > From: Appal Energy > To: biofuel@yahoogroups.com > Sent: Monday, August 30, 2004 08:47 > Subject: Re: [biofuel] Old propane tanks > > > Forgot to mention that if you do attempt pressurized esterifications (100 > psi), > > PLEASE, PLEASE, PLEASE do so by filling all vapor spaces with an inert gas > such as CO2 (inexpensive) to reduce the risk of explosions. Compressed air > (increased oxygen content) is not a wise choice for such a process. > > Todd Swearingen > > ----- Original Message ----- > From: "Greg Harbican" <[EMAIL PROTECTED]> > To: <biofuel@yahoogroups.com> > Sent: Monday, August 30, 2004 1:06 AM > Subject: [biofuel] Old propane tanks > > > > I have a possible source of propane tanks that have failed certification, > and, might be able to get one or two at scrap prices. I know to fill them > with water to force out any propane than may still be in them, so they don't > explode when I go to cut/drill into them. I figure that if I can locate a > 40 lb tank, that has failed certification, that it should make a processor > that can handle about 20 gal at a time. > > > > Any advice as to converting them to a BioDiesel processor? > > > > Greg H. > > > > [Non-text portions of this message have been removed] > > > > > > > > > > > > Biofuel at Journey to Forever: > > http://journeytoforever.org/biofuel.html > > > > Biofuels list archives: > > http://infoarchive.net/sgroup/biofuel/ > > > > Please do NOT send Unsubscribe messages to the list address. > > To unsubscribe, send an email to: > > [EMAIL PROTECTED] > > Yahoo! Groups Links > > > > > > > > > > > > > > > > Biofuel at Journey to Forever: > http://journeytoforever.org/biofuel.html > > Biofuels list archives: > http://infoarchive.net/sgroup/biofuel/ > > Please do NOT send Unsubscribe messages to the list address. > To unsubscribe, send an email to: > [EMAIL PROTECTED] > > > Yahoo! Groups Sponsor > ADVERTISEMENT > > > > > > -------------------------------------------------------------------------- ---- > Yahoo! Groups Links > > a.. To visit your group on the web, go to: > http://groups.yahoo.com/group/biofuel/ > > b.. To unsubscribe from this group, send an email to: > [EMAIL PROTECTED] > > c.. Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. > > > > [Non-text portions of this message have been removed] > > > > > > Biofuel at Journey to Forever: > http://journeytoforever.org/biofuel.html > > Biofuels list archives: > http://infoarchive.net/sgroup/biofuel/ > > Please do NOT send Unsubscribe messages to the list address. > To unsubscribe, send an email to: > [EMAIL PROTECTED] > Yahoo! Groups Links > > > > > > ------------------------ Yahoo! Groups Sponsor --------------------~--> $9.95 domain names from Yahoo!. Register anything. http://us.click.yahoo.com/J8kdrA/y20IAA/yQLSAA/FGYolB/TM --------------------------------------------------------------------~-> Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuels list archives: http://infoarchive.net/sgroup/biofuel/ Please do NOT send Unsubscribe messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/biofuel/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
