Dear Paddy, >"It's great to get some input from a knowledgable > person such as Michael Allen"
Thanks for the ego massage Paddy but it's even greater to have some input from someone with the knowledge AND EXPERIENCE that Todd has! I think that this demonstrates the real value of the biofuels-biz group. And thanks Todd . . . . . Now about these very hard whitish crystals I get at the bottom of the wash-tank sometimes . . . . they seem to scratch even glass . . . . . could they be . . . . ???? :-) --- Appal Energy <[EMAIL PROTECTED]> wrote: > Dear Mr. or Ms. Goat, > > The contents of the middle layer to which you refer > are largely > dependant upon the degree of reaction completion, > the reaction > type (acid/base or base) and the processing steps > used > (principally in an acid/base). > > The belief that this layer is primarily soap is > largely in error, > as soap is soluble in water. However soap does > emulsify oily > substances. The white layer you refer to is largely > an > emulsification. The extent of the emulsification is > greatly > dependent upon how well the initial reaction was > conducted. > Incomplete reactions when blended in 50/50 ratios > with water in > 55 gallon lots can result in literally as much as > several feet in > depth of emulsification. A complete reaction should > yield no more > than a fraction of an inch of an emulsion layer. > > The three layers yielded from a catalyst recovery > attempt are > from bottom to top: A) neutralized catalyst in > precipitate form. > B) crude glycerin (but not quite so crude as > previously) > consisting of glycerin, water, discolorants and > perhaps excess > acid. C) recovered free fatty acids (soaps that have > been broken > down by the acid to FFAs) with perhaps a fraction of > soluble > alkyl esters. > > The small alkyl ester fraction will be largely > dependant upon > your previous separation technique (how much > biodiesel is > imported into the FFA recovery process) and to what > degree the > FFA recovery process is acidified. > > As the ester fraction should be small to > "non-existant," it is > almost of no consequence to know that alkyl esters > in either an > acid or base environement are continually reverting > between FFA > and ester throughout an equilibrium reaction. > Chances are that a > FFA recovery step will be acidified in slight excess > and all or > almost all esters that existed at the beginning of > the process > will be non-existant by its end, having reverted to > FFAs. > > Todd Swearingen > > ----- Original Message ----- > From: goat industries > <[EMAIL PROTECTED]> > To: <biofuels-biz@yahoogroups.com> > Sent: Monday, September 02, 2002 2:40 PM > Subject: [biofuels-biz] some clarification? > > > > It's great to get some input from a knowledgable > person such as > Michael > > Allen - Michael, could you do us a favour and tell > us: > > a) what is the major component of the 'creamy' > middle layer in > the post wash > > methyl ester/water mixture that is commonly called > soap? > > b) what are the three layers that are formed when > crude, black, > glycerine is > > neutralised with acid? > > Your help would be greatly appreciated! > > > > > > > > ------------------------ Yahoo! Groups > Sponsor ---------------------~--> > > 4 DVDs Free +s&p Join Now > > > http://us.click.yahoo.com/pt6YBB/NXiEAA/MVfIAA/9bTolB/TM > > > --------------------------------------------------------------- > ------~-> > > > > Biofuels at Journey to Forever > > http://journeytoforever.org/biofuel.html > > Biofuel at WebConX > > > http://www.webconx.dns2go.com/2000/biofuel/biofuel.htm > > List messages are archived at the Info-Archive at > NNYTech: > > http://archive.nnytech.net/ > > 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/ > > > > > > > > __________________________________________________ Do You Yahoo!? Yahoo! Finance - Get real-time stock quotes http://finance.yahoo.com ------------------------ Yahoo! Groups Sponsor ---------------------~--> Looking for a more powerful website? Try GeoCities for $8.95 per month. Register your domain name (http://your-name.com). More storage! No ads! http://geocities.yahoo.com/ps/info http://us.click.yahoo.com/aHOo4D/KJoEAA/MVfIAA/9bTolB/TM ---------------------------------------------------------------------~-> Biofuels at Journey to Forever http://journeytoforever.org/biofuel.html Biofuel at WebConX http://www.webconx.dns2go.com/2000/biofuel/biofuel.htm List messages are archived at the Info-Archive at NNYTech: http://archive.nnytech.net/ 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/
