There is more than one way to make green steel
Why electricity may be better than hydrogen
Steelmakers around the world hope to decarbonise by changing the way they pluck oxygen from iron-oxide ores. This is done using either carbon monoxide (CO) derived indirectly from coke in a blast furnace, or by “direct reduction” with syngas, a mixture of CO and hydrogen.
This article appeared in the Science & technology section of the print edition under the headline “David and Goliath”
From the June 3rd 2023 edition
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