3 ms·
That process is entirely electric and so the benefits depend completely on the energy provider, is 10 years away from actually-maybe happening, and requires CCS
by hurricanetc 7y ago
That process is entirely electric and so the benefits depend completely on the energy provider, is 10 years away from actually-maybe happening, and requires CCS to be carbon neutral. The last bit is the most relevant to this particular discussion.
- hannob 7y ago> requires CCS to be carbon neutral Why would that be? Hydrogen doesn't contain any carbon. If you produce the hydrogen from electrolysis and the electricity from renewables the process would be carbon free. (You can still argue that there are emissions in construction and such, but I don't think that's what you meant.)
- hurricanetc 7y agoThere are other metals and materials involved. It’s a partial solution. We really aren’t even close to a truly carbon neutral steel production. Maybe by 2100.
- SlowRobotAhead 7y agoThis is the aluminum issue. Creation of new requires a ridiculous amount of electrify. So... Aluminum ore is shipped from all around the world to Iceland where electrify is super cheap. There it’s smelted and processed. Then it’s shipped mostly back around the world to China where its processed alloy and sponge, then around the world again if it isn’t rolled, extruded, forged, etc. So... forgive me, but any process that revolves around adding electricity to a process like this, makes me think “another aluminum”. Where everything side looks over the true costs of shipping things around the world a couple times before they end up in a landfill.
- caf 7y ago10 years? SSAB say they'll be selling steel made by this method by 2026. https://www.ssab.com/company/newsroom/media-archive/2019/11/14/10/02/ssab-to-be-first-to-market-with-fossilfree-steel https://www.ssab.com/company/newsroom/media-archive/2019/11/...