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A comment on A new way to make steel could cut 5% of CO2 emissions at a stroke. Parent comment

Re:A new way to make steel could cut 5% of CO2 emissions at ... by SomeAmerican on Tuesday November 06, 2018 @01:13PM (#18393432)
The coke that is mixed with the iron ore is the coke that heats the furnace. As the coke (carbon) reacts with oxygen, some of the carbon monoxide then strips oxygen from the iron oxide in the iron ore.
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