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'Green steel': Swedish company ships first batch made without using coal:
The world's first customer delivery of "green steel" produced without using coal is taking place in Sweden, according to its manufacturer.
The Swedish venture Hybrit said it was delivering the steel to truck-maker Volvo AB as a trial run before full commercial production in 2026. Volvo has said it will start production in 2021 of prototype vehicles and components from the green steel.
Steel production using coal accounts for around 8% of global greenhouse gas emissions. Hybrit started test operations at its pilot plant for green free steel in Lulea, northern Sweden, a year ago. It aims to replace coking coal, traditionally needed for ore-based steel making, with renewable electricity and hydrogen. Hydrogen is a key part of the EU's plan to reach net zero greenhouse gas emissions by 2050.
(Score: 2) by number11 on Friday August 20 2021, @05:25PM (1 child)
Melting steel down won't release the carbon, that will remain mixed with the iron. To get carbon out, you've got to do things like introduce oxygen, which will combine with the carbon to form CO. Some carbon might be removed as part of the slag that forms, but that will be solids, not gas.
(Score: 2) by hendrikboom on Monday August 23 2021, @01:01AM
I meant of course, melted down again in the presence of air. Even then, it's only carbon that convects to the surface that would burn.