James, There is a point, to which I am as yet certain, where higher than atmospheric pressure must be implemented in order to get high ffa feedstock to entirely convert in an esterification.
This would probably mean at least 4 atmospheres or greater. But that doesn't amount to much as far as psi goes - 50+ pounds. Todd ----- Original Message ----- From: James Slayden <[EMAIL PROTECTED]> To: <biofuel@yahoogroups.com> Sent: Tuesday, January 21, 2003 12:39 PM Subject: Re: [biofuel] Where do I put all this glycerin?? > has anyone done any experimentation on reprocessing the FFA's via the > acid/base to see if it's convertable? Although, I do like the idea of > burning it in a boiler/heater, it seems like it would be worthy to capture > it and make some more BD. > > James Slayden > > On Tue, 21 Jan 2003, Appal Energy wrote: > > > Probably about 6.715 gallons of true glycerin for every 85 > > gallons of feedstock. The rest will be recoverable alcohol and > > soap. Unfortunately you can't separate the glycerin from the soap > > without evaporating the glycerin at over 500*F. Journey to > > Forever has a section on how to chemically recover the glycerin, > > a process that also breaks the soap down to the original free > > fatty acids and changes the residual catalyst to a reusable > > fertilizer. > > > > That same recovery process will require considerably less > > chemical inputs and yield a slightly higher grade glycerin if you > > are originally using the acid/base process. Using the straight > > base process makes considerably more soap byproducts than the > > acid/base process. > > > > Depending upon your feedstock, whether it was clean oil or waste > > fats and oils, the glycerin may be scent free enough as to use in > > other soap making or sell to soap makers, although they don't use > > a great deal of it. You may also be able to store it until you > > have enough volume for a glycerin refiner to take it. Or you > > could dillute it with water and dispense it over fields along > > with the recovered fertilizer. > > > > The recovered free fatty acids can be used as a boiler, oil lamp > > or some other fuel. > > > > Todd Swearingen > > > > > > ----- Original Message ----- > > From: <[EMAIL PROTECTED]> > > To: <biofuel@yahoogroups.com> > > Sent: Monday, January 20, 2003 11:11 PM > > Subject: [biofuel] Where do I put all this glycerin?? > > > > > > > Hello, > > > > > > I am very interested in making biodiesel from used vegetable > > oil and > > > methanol, but my biggest concern is disposal of the glycerin. > > I > > > understand I should obtain approximately 15 gallons of > > glycering to > > > every 85 gallons of biodiesel. Is this correct? And what do I > > do > > > with all this glycerin? Please help. > > > > > > Dave > > > > > > > > > > > > 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 > > ADVERTISEMENT > > HGTV Dream Home Giveaway > > > > 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 the Yahoo! Terms of Service. > > > > > 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/ > > > 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/
