jbu Posted May 6, 2010 Share Posted May 6, 2010 does any one know how to easly and cheaply remove the alcohol that they add to gasoline. i repeat, easly and cheaply. thanks jbu Link to comment Share on other sites More sharing options...
PaulS1950 Posted May 7, 2010 Share Posted May 7, 2010 Add water. The alcohol will separate with the water and you can remove the water alcohol in a centrifug or if a small amount of waste is tollerable then just pour off the gas while the water and alcohol sinks to the bottom. Yo can then run the water alcohol through a reflux still and get the alcohol back to use for anything but drinking - it is denatured and toxic. Link to comment Share on other sites More sharing options...
insane_alien Posted May 7, 2010 Share Posted May 7, 2010 any particular reason you want to remove it? Link to comment Share on other sites More sharing options...
jbu Posted May 8, 2010 Author Share Posted May 8, 2010 any particular reason you want to remove it? alcohol is very corosive to aluminum. for my homebuilt airplane that has aluminum tanks. i have fueled my plane at -30 and the car gas would plug the screen in the pouring spout with ice crystals. i'm leary of useing water to separate the alcohol. some small engines with aluminum tanks and carbs will fail with alcohol in the gas. jbu Link to comment Share on other sites More sharing options...
John Cuthber Posted May 9, 2010 Share Posted May 9, 2010 Anhydrous calcium chloride should remove the alcohol (and any water that's there). You would probably want to add something like calcium carbonate or sodium bicarbonate as well to make sure that no HCl was able to get into the gasoline. Another option would be to distil the stuff. How much fuel are you talking about? It might be easier to use toluene or trimethylpentane. Link to comment Share on other sites More sharing options...
Mr Skeptic Posted May 10, 2010 Share Posted May 10, 2010 Freezing it out might also work, but not as well as anhydrous calcium chloride. Link to comment Share on other sites More sharing options...
jbu Posted May 10, 2010 Author Share Posted May 10, 2010 IIRC alcohol is also a problem for 2 cycle engines that require the oil mixed with the gas. it wants to make the oil separate to the botom of the tank. this is from memory, i could be wrong on that. the govt just forced this new law where all gas has 10% alcihol wheather we like it or not. there must be some thing for instance like desicant or activated charcoal that has an afinnity for alcohol and not gas. this is just speculation for an example. simple and cheap. these other chemicals would be hard to get and probly regulated. ther has to be something. thanks jbu Link to comment Share on other sites More sharing options...
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