[Telepathic Intruder]

It’s everywhere in earth’s crust. But to separate it from oxygen requires as much energy as it produces when burned. And there’s always additional overhead. It would be a clean fuel if that’s what this article is driving at, but how clean is the energy source used to extract it? The pollution just gets bumped up to another level.

[CurlyDave]

It’s everywhere in earth’s crust. But to separate it from oxygen requires as much energy as it produces when burned. And there’s always additional overhead. It would be a clean fuel if that’s what this article is driving at, but how clean is the energy source used to extract it? The pollution just gets bumped up to another level.

I am not so certain it would be a clean fuel. The end product of combustion of Aluminum is Al2O3, aluminum oxide. If the Aluminum is finely divided to start out the Aluminum Oxide would also be finely divided, essentially dust. And, very hard, abrasive dust at that. Not the kind of thing you want speed over every highway.

[Oztrich Boy]

It also requires coal to produce iron from the ore.