this post was submitted on 19 Apr 2024
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99
How to Escape From the Iron Age? (solar.lowtechmagazine.com)
submitted 6 months ago by [email protected] to c/[email protected]
26 comments fedilink hide all child comments
 

We cannot lower carbon emissions if we keep producing steel with fossil fuels.

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[–] [email protected] 9 points 6 months ago

How much of the coal in a blast furnace is actually necessary for the carbon impregnation, as opposed to supplying the heat via combustion? Steel contains only a few percent carbon by weight, so it doesn't seem like much carbon is needed (not to mention that the carbon in steel is essentially sequestered).