pumpkin_fire
pumpkin_fire t1_j6hdald wrote
Reply to comment by MrAkaziel in US company gets $120 million boost to make 'green steel' by Ok_Champion6840
Nah, EAFs mostly melt scrap steel. Maybe some DRI as well. But are incapable of chemically reducing the iron ore to elemental iron.
Boston Melts claims to have developed a process that allows direct electrolysis of iron ore fines into elemental iron, so that the reduction and the refining to steel all happen in the one vessel. Oftentimes, electrolysis of metals involves a carbon anode that still releases CO2 - this is how almost all aluminium is produced. Crucially, Boston Metals claim to have invented an inert anode that doesn't release any CO2.
pumpkin_fire t1_ium1uvu wrote
Reply to comment by Miketogoz in [OC] There are more self-described vegans than vegetarians among US users of Twitter by jasonjonesresearch
Who didn't know what veganism was in 2010? It was absolutely a well known concept. Scott Pilgrim vs the World the movie came out in 2010 and has a whole subplot mocking vegans, and it was in no way some obscure concept back then. It had already been a mainstream concept for decades by that point. The Simpsons episode where Lisa discusses veganism with Paul McCartney came out in 1995, and no-one was like "what the fuck is veganism?".
I'm very curious how old you were in 2010.
pumpkin_fire t1_j6hdhhi wrote
Reply to comment by AaronDoggers in US company gets $120 million boost to make 'green steel' by Ok_Champion6840
Nor natural gas, which is the route a lot of the European Steelmakers, Acelor Mittal included, have recently announced. Natural gas DRI is around 0.8 t CO2 per tonne of steel Vs 1.8-2.2t CO2 per tonne of steel for coke.