Good info., always did sort of like methanol over ethanol, for one reason or another. To bad it's so nasty to work with.
I found a formula, that achieves a 3.7% O2 increase, called Waiver, by DuPont, it's 5% Methanol and 2.5% Ethanol, and does the same as 10% Ethanol, and is better than 11% MTBE ( 2% O2 ). From the info. I gathered, it appears that they thought that MTBE would be better because it can be made at the same refineries as the gasoline. I don't have my chemistry book handy, but, I can't help but wonder if any of the other alcohols, would work as O2 transporters for naturally aspirated diesel engines at high altitudes? Greg H. ----- Original Message ----- From: Martin Klingensmith To: biofuel@yahoogroups.com Sent: Wednesday, August 11, 2004 21:08 Subject: Re: [biofuel] Ethanol / Methanol mix Hello Greg, Methanol is CH3O [atomic mass 31 grams per mole] and ethanol C2H6O [46 g/M]. As you can see there is an oxygen atom in each molecule. Ethanol has more energy than methanol because it has more bonds than methanol. Plain old gasoline is just a series of carbon bonds such as C-C-C-C-C-C [with hydrogen all around] MTBE is C5H12O [88 g/M] which, as you can see, is much more massive than either ethanol or methanol yet only has 1 oxygen atom. Since mixtures are done by weight[mass], you could for example have 1kg of methanol mixed with 9kg of gasoline (a 10% mixture). The mass of the added oxygen would be approximately 500 grams and the oxygen would be about 5% in the whole mixture. If you had 1kg of MTBE with 9kg gasoline (again 10%) then the mass of the oxygen would be approximately 180 grams and the oxygen would be about 1.8% of total mass. So methanol would be a much better oxygenator according to my "chem 105 as I remember it" calculations. They very well could be off by +/-90% :) Ethanol would be slightly less efficient as an oxygen donor. So basically it doesn't matter what the eth/meth ratio is, any amount will help. -- -- Martin Klingensmith http://infoarchive.net/ http://nnytech.net/ Greg Harbican wrote: > In the last few days, I have been doing some checking, and I found that in 1990 there was experimentation into Eth / Meth alcohol mixes, that when added to fuel, would increase the O2 content of the fuel up to 3.7% ( better than 11% MTBE with 2% O2 ), decreasing associated pollutants. > > Does anyone have any information about these experiments and what the Eth/Meth ratio's are? > > 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 > > > > > -- -- Martin Klingensmith http://infoarchive.net/ http://nnytech.net/ 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] ------------------------ Yahoo! Groups Sponsor --------------------~--> Make a clean sweep of pop-up ads. Yahoo! Companion Toolbar. Now with Pop-Up Blocker. Get it for free! http://us.click.yahoo.com/L5YrjA/eSIIAA/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/
