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Chemistry

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    $\begingroup$ The actual reduction agent in a classical blast furnace is CO. You're right with the rest of what you say. ;) $\endgroup$
    – Karl
    Commented Jul 20, 2023 at 21:30
  • $\begingroup$ Would you consider removing the last two irrelevant paragraphs and maybe instead elaborate why solid reactants (I guess) are favorable in terms of reaction economics to gaseous ones? $\endgroup$
    – tobalt
    Commented Jul 22, 2023 at 7:07
  • $\begingroup$ @tobalt the second last paragraph is a direct answer to your why not, and the last one is my personal quest to educate the servile masses in using the word 'green' sparingly. But I will elucidate once I am back on my laptop, writing equations is too arduous on a mobile device. $\endgroup$
    – Stian
    Commented Jul 22, 2023 at 13:58
  • $\begingroup$ @Stian Ok maybe "irrelevant" was the wrong term. What I mean is that these paragraphs contain no substance because they tell trivial truths. Thanks for now adding this substance :) I think, however, that you try to make a point in case of Carbon vs any of those replacements. But the question is about CH4/NH3 vs H2. $\endgroup$
    – tobalt
    Commented Jul 22, 2023 at 17:07