Iron Powder Passes First Industrial Test as Renewable, Carbon Dioxide-Free Fuel

Amazing stuff! The endless wonders of human ingenuity!

"... fine iron powder mixed with air is highly combustible. When you burn this mixture, you’re oxidizing the iron. Whereas a carbon fuel oxidizes into CO2, an iron fuel oxidizes into Fe2O3, which is just rust. The nice thing about rust is that it’s a solid which can be captured post-combustion. And that’s the only byproduct of the entire business—in goes the iron powder, and out comes energy in the form of heat and rust powder. Iron has an energy density of about 11.3 kWh/L, which is better than gasoline. ...
Researchers from TU Eindhoven have been developing iron powder as a practical fuel for the past several years, and last month they installed an iron powder heating system at a brewery ..."

Iron Powder Passes First Industrial Test as Renewable, Carbon Dioxide-Free Fuel - IEEE Spectrum Oxidizing and reducing powdered iron has the potential to provide clean power on an industrial scale