on 8/22/04 10:27 PM, [EMAIL PROTECTED] at [EMAIL PROTECTED] wrote: > > The diagram suggests that I can accomodate > about 2% to 5% water in ethanol and blend > it with gasoline without separation at 21 deg. C.
Yes, if you want to use mostly gasoline -- I personally like that big clear area at the top of the diagram, say, around 80% ethanol, 10% water, and 10% gasoline. You'd still have to distill the alcohol to get that high, but a simple still (no fractionation or mol. sieve req'd) would do it. Of course, at those percentages, why bother with the gasoline at all? > I read a warning somewhere that this isn't wise because > the water will separate out at low temperatures. > Then, I wondered, is THIS a way to make a blend without dry > alcohol, to cool the mix and remove the water. (I understand, > it's all in the phase diagram, and if it works the wrong way, > just all of the alcohol separates out too.) > > Yup, I think that's what would happen -- lowering the temp. causes the "binodal curve" (the boundary where one phase breaks up into two) to move upward in the diagram. -K ------------------------ 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/
