Summary Draft #2

The article “ How green steel made with electricity could clean up a dirty industry” written by Crownhart (2022), describes the creation and the use of green steel. Green steel is the process whereby steel is manufactured via electricity instead of blast furnaces to emit oxygen instead of carbon dioxide. 

Currently, steel is produced in fossil fuels where coke, a coal-derived material, reacts with iron ore, a mixture of iron oxides and other minerals. Through this reaction, liquid iron is formed, and carbon dioxide is emitted. Unlike this process, the molten oxide electrolysis (MOE) process produces green steel by having electricity flow through a cell that contains a mixture of oxides and other materials, emitting oxygen into the atmosphere.

As steel is used in all parts of the world, it is expected that there would be a high demand for it. This, in turn, would lead to a higher production rate to meet the demand. According to Crownhart (2022), the steel industry produces nearly 2 billion tonnes of steel annually. As a result of such high production rates, steelmaking contributes to about two tonnes of carbon dioxide emissions for every tonne of steel produced, adding up to about 10% of such emissions globally. As green steel results in the emission of oxygen instead of carbon dioxide, the use of green steel would reduce carbon dioxide emissions significantly.

Despite the differences in their manufacturing processes, green steel is expected to share the same properties as regular steel. This means that people would be able to enjoy the benefits that steel offers while combating global warming.


References

Crownhart, (2022), How green steel made with electricity could clean up a dirt industry
https://www.technologyreview.com/2022/06/28/1055027/green-steel-electricity-boston-metal/

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