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This makes no sense to me. Iron/steel production is one of the largest individual sources of co2 emissions and uses a lot of energy. And then to just burn it
by jacknews 3y ago
This makes no sense to me.
Iron/steel production is one of the largest individual sources of co2 emissions and uses a lot of energy.
And then to just burn it back into iron ore for energy - At best you'll only get back the energy you expended to refine it in the first place.
Assuming they are burning scrap, it would surely be better to melt it down and recycle it as steel.
As energy storage, it may well have more energy per liter than gasoline, but it weighs many times more. There are surely better options - even in the same category, eg aluminium?
- neolefty 3y agoTrue, if we're getting it the traditional way. Fortunately, iron oxide can be reduced using hydrogen. In the article, they conclude that the system cost of shipping iron and iron oxide back and forth from an electrolysis facility (presumably from renewables) is lower than using hydrogen directly as a fuel.