Thank you Jan for your reply. Does anyone know the IV of Hydrogenated soybean oil? and does this affect whether or not it polymerizes?
----- Original Message ----- From: "Jan Warnqvist" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Saturday, April 02, 2005 4:50 AM Subject: Re: [Biofuel] Re: soybeanoil a bad choice for BD making? > Hello TLC. > The main idea with hydrogenation is to alter the IV value of an oil. The > answer is yes. > Jan Warnqvist > AGERATEC AB > > [EMAIL PROTECTED] > > + 46 554 201 89 > +46 70 499 38 45 > ----- Original Message ----- > From: "TLC Orchids and Such" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Saturday, April 02, 2005 5:13 AM > Subject: Re: [Biofuel] Re: soybeanoil a bad choice for BD making? > > > > > > Hydrogenated canola has an IV of around 65 while non hydrogenated has an > IV > > of around 112. > > Does anyone know if the IV in soybean (131) safflower (145) hemp (165) or > > sunflower (133) > > are altered in any way by the hydrogenation process? > > > > ----- Original Message ----- > > From: "bob allen" <[EMAIL PROTECTED]> > > To: <[EMAIL PROTECTED]> > > Sent: Friday, April 01, 2005 3:24 PM > > Subject: Re: [Biofuel] Re: soybeanoil a bad choice for BD making? > > > > > > > > > > Howdy Kieth and Jan > > > > > > > > > At the risk of looking foolish as I am an organic chemist, but don't > > > have much experience with polymer chemistry- here goes > > > > > > > > > Polymerization is a molecule molecule reaction. A compound with double > > > carbon carbon bond is particularly susceptible free radical oxidation. > > > Let's call them U. Compounds without carbon carbon double bounds are > > > relatively unreactive. We will call these S. Oxygen will activate one > > > molecule, U, but for polymerization to occur, the activated molecule > > > must encounter another U, then the now covalently bonded pair, must > > > encounter another U, and so on. Collisions of activated U with S don't > > > result in a reaction. > > > > > > > > > It seems to me that if you "dilute" U with S, that you will reduce > > > polymerization. > > > > > > Or how about this. An activated molecule has only a finite amount of > > > time to react. If an activated molecule U "bumps into" another U then > > > chain growth continues. But if activated U bumps into S, no reaction > > > occurs, other than U reacting internally, which also stops chain growth. > > > > > > > > > Polymer chemists can modulate the number of molecules in a chain (chain > > > length) by addition of non polymerizing stuff. > > > > > > > > > Being a right brain guy, this discussion is made more difficult, as I > > > can't draw all the pictures which exemplify the points I am trying to > > > make. :( > > > > > > > > > The long and short of it (no pun intended) chain length of polymers > > > will be reduced by dilution of biodiesel blended from high IV oils with > > > low IV oils. Put another way, the time to reach a specified degree of > > > polymerization will be extended by dilution. > > > > _______________________________________________ > > Biofuel mailing list > > [EMAIL PROTECTED] > > http://wwia.org/mailman/listinfo/biofuel > > > > Biofuel at Journey to Forever: > > http://journeytoforever.org/biofuel.html > > > > Biofuel archives at Infoarchive.net (searchable): > > http://infoarchive.net/sgroup/biofuel/ > > > > _______________________________________________ > Biofuel mailing list > [EMAIL PROTECTED] > http://wwia.org/mailman/listinfo/biofuel > > Biofuel at Journey to Forever: > http://journeytoforever.org/biofuel.html > > Biofuel archives at Infoarchive.net (searchable): > http://infoarchive.net/sgroup/biofuel/ > _______________________________________________ Biofuel mailing list [EMAIL PROTECTED] http://wwia.org/mailman/listinfo/biofuel Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuel archives at Infoarchive.net (searchable): http://infoarchive.net/sgroup/biofuel/
