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Reduction of iron ore with carbon monoxid in closed loop: • Decarbonisation of BF-BOF through thermochemical closed carbon looping. • Demonstration of mass an
by boshomi 4y ago
Reduction of iron ore with carbon monoxid in closed loop:
• Decarbonisation of BF-BOF through thermochemical closed carbon looping.
• Demonstration of mass and energy flows of thermochemical BF-BOF system.
• 88% emissions reduction of UK steel industry through £720 million investment.
• Decarbonisation without retiring of existing BF-BOF, reducing stranded assets.
• After 5 years, £1.28 billion savings and total UK-wide emissions reduction of 2.9%.
“if the thermochemical closed reactors were exclusively powered by electricity, it would require 607 kWh/t liquid steel.”
»Cost effective decarbonisation of blast furnace – basic oxygen furnace steel production through thermochemical sector coupling« -- https://doi.org/10.1016/j.jclepro.2023.135963 https://doi.org/10.1016/j.jclepro.2023.135963
- TheSpiceIsLife 4y agoThe UK steel industry is 0.1% of the UK economy, at around 7 million tonnes per annum. China producuces a little over 1 billion metric tonnes per annum By what measure is this not futile?
- lazide 4y agoIf the technology is developed and proven in a smaller economy, then it can be expanded to the bigger one by said smaller economy.
- shard972 4y ago[dead]
- lmm 4y agoSo the UK, with about 4.7% the population of China, produces 0.7% as much steel, i.e. the ratios are within an order of magnitude. And presumably what works in the UK will work in China too.
- peterashford 4y agoAlmost every individual action by a single emitter makes a tiny contribution to AGW.
- justinclift 4y agoDoesn't China have a free pass with their emissions through to 2030, due to their "developing country" status? Pretty sure that's the case, though they have to start reducing their emissions after that like the rest of us.
- scythe 4y ago>In conclusion, this paper aims to demonstrate the first principal calculations of coupling a thermochemical carbon dioxide splitting cycle with a steel production facility for cost-effective steel decarbonisation. It's an interesting idea. But let's be clear: it's an idea. The scientific literature contains a lot of good ideas. By contrast the OP paper is actually an experimental demonstration of reduction with ammonia. A bird in the hand is worth two in the bush.
- Moru 4y agoSwedish projects to create green steel [1] seems to have delivered the first customer batch of steel. They use hydrogen produced locally. [1] https://www.reuters.com/business/sustainable-business/swedens-hybrit-delivers-worlds-first-fossil-free-steel-2021-08-18/ https://www.reuters.com/business/sustainable-business/sweden...