Hi, all.
In doing research into making water miscible with the constituent components of gasoline, I started experimenting with acetone / water mixtures. Acetone being a polar (ie: has molecular charge separation) aprotic (ie:cannot donate hydrogen during proton transfer) small-molecule solvent, it is fully miscible in hydrocarbons and in water. Thus, it allows water to form an emulsion with gasoline.
Well, I mixed up a batch of gasoline / acetone / water. Unfortunately (or fortunately, whichever way you look at it), the ethanol in the gasoline already had some water in it, so some of the water settled out in the bottom of the glass container... and I got to thinking about what would happen if we had gasoline and water / acetone (supersaturated with water so some settled out) in a container, then we electrolysed the water to put the separated hydrogen and oxygen into the fuel.
That led me to research the electrical conductivity of acetone... it's not very electrically conductive... pKa of ~20.
One of the interesting factoids I came across in researching acetone is that adding it to water causes markedly lower high-frequency conductivity (even when using sodium hydroxide as an electrolyte) to an extent that isn't explained by the low molar conductivity of acetone or by change in viscosity.
So perhaps one way of limiting current while using high-voltage high-frequency electrolysis would be to add acetone to the water.
In doing research into making water miscible with the constituent components of gasoline, I started experimenting with acetone / water mixtures. Acetone being a polar (ie: has molecular charge separation) aprotic (ie:cannot donate hydrogen during proton transfer) small-molecule solvent, it is fully miscible in hydrocarbons and in water. Thus, it allows water to form an emulsion with gasoline.
Well, I mixed up a batch of gasoline / acetone / water. Unfortunately (or fortunately, whichever way you look at it), the ethanol in the gasoline already had some water in it, so some of the water settled out in the bottom of the glass container... and I got to thinking about what would happen if we had gasoline and water / acetone (supersaturated with water so some settled out) in a container, then we electrolysed the water to put the separated hydrogen and oxygen into the fuel.
That led me to research the electrical conductivity of acetone... it's not very electrically conductive... pKa of ~20.
One of the interesting factoids I came across in researching acetone is that adding it to water causes markedly lower high-frequency conductivity (even when using sodium hydroxide as an electrolyte) to an extent that isn't explained by the low molar conductivity of acetone or by change in viscosity.
So perhaps one way of limiting current while using high-voltage high-frequency electrolysis would be to add acetone to the water.