gasahol or alcohol in gasoline

[jbu]

does any one know how to easly and cheaply remove the alcohol that

they add to gasoline. i repeat, easly and cheaply. thanks

jbu

[PaulS1950]

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.

[insane_alien]

any particular reason you want to remove it?

[jbu]

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

[John Cuthber]

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.

[Mr Skeptic]

Freezing it out might also work, but not as well as anhydrous calcium chloride.

[jbu]

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