Quote:
Originally Posted by Paul
As a fuel to make the steel, maybe.
However, you also need carbon to create the steel itself.
That carbon also (normally) comes from the coke.
As best I can tell, its not impossible to use other sources of carbon, but none are as common.
Of course, "Net Zero" is a far off (and currently unrealisitc) fantasy anyway.
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In virgin steel production at Scunthorpe the coke provides some of the heat as well as the source of carbon. They also seem to use some unmodified coal in the process.
Virgin steel production without coke is possible, apparently they do it in Iran and India, and there are newer methods which aren’t commercialised yet, but any of these would require the steelworks to be rebuilt.