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A comment on Reducing Iron Oxide with Ammonia: A Sustainable Path to Green Steel. Parent comment

Re:Reducing Iron Oxide with Ammonia: A Sustainable Path to G... by 1letterunixname on Sunday April 02, 2023 @09:45PM (#35417562)
You're suggesting unworkable processes that would take an absolute crapton of energy and be very expense.
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Re:Reducing Iron Oxide with Ammonia: A Sustainable Path to G... by cyberax on Sunday April 02, 2023 @11:36PM (#35418269)
Uhm... Which one? Reduction of iron ore with methane is energetically as good as anything else.

Synthetic methane is estimated right now to be about 2.5x the cost of fossil one when deployed at scale: https://www.sciencedirect.com/science/article/pii/S187551002...

This is pretty reasonable.

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