Obviously, I only skimmed when I should have read carefully.
The technique described leaves a lot of material that could be likened to heavy oil in the ground as it pulls out the lighter factions.
I'd like to see this work, but I'll believe the 3.5:1 when I see it. I guess I've been reading too much EnergyResources on yahoo.
For the person who suggested nuclear, you might want to consider the eastern shales. There's plenty of water for both cooling and processing in the east, and there's a potential deposit in Tennessee (I believe), that will also yield uranium. In addition, the eastern shales are supposed to plump up much more with the hydrogen addition than are western shales.
I will be interesting to see how this plays out this time around.