Post AVtdZOOlfLKdNl0NFo by abartlet@mastodon.nzoss.nz
 (DIR) More posts by abartlet@mastodon.nzoss.nz
 (DIR) Post #AVtc3DlDa8rHAVbM5g by vik@mastodon.nzoss.nz
       2023-05-22T00:13:20Z
       
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       Found the RNZ article on using electricity to recycle steel, and yes they did mean an arc furnace. But to make new steel we need a replacement reducing agent for the coal. Which is one of the few legit reasons we should be making hydrogen. https://www.rnz.co.nz/news/political/490351/nz-steel-to-receive-up-to-140m-to-recycle-scrap-steel-using-electricity-instead-of-coal
       
 (DIR) Post #AVtdZM6cBrcgGsUqgK by abartlet@mastodon.nzoss.nz
       2023-05-22T00:23:13Z
       
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       @vik Some very smart folks have been working in this space:https://www.smart.unsw.edu.au/technologies-products/green-steel
       
 (DIR) Post #AVtdZMttEf2QjhYCUC by vik@mastodon.nzoss.nz
       2023-05-22T00:30:23Z
       
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       @abartlet FYI I was working on closed-cycle production of iron, aluminium, nickel, and magnesium back in the '90s. The processes are well understood, but can't compete with coal except for in the niche high-purity and esoteric sector that I was involved with. But those process could combine the refining and selective alloying directly with 3D fabrication, which was kinda cool - particularly as 3D printing wasn't a big thing then.
       
 (DIR) Post #AVtdZOOlfLKdNl0NFo by abartlet@mastodon.nzoss.nz
       2023-05-22T00:27:13Z
       
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       @vik This article talks specifically about the groundbreaking work by Professor Veena Sahajwalla: https://www.arc.gov.au/news-publications/media/feature-articles/wheel-success-researcher-teams-industry-turn-tyres-steel