Steel Production: Difference between revisions
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=Distributed Market Substitution Calculations= | =Distributed Market Substitution Calculations= | ||
*Global production is | *Global production is 2 billion tons [https://worldsteel.org/media-centre/press-releases/2023/december-2022-crude-steel-production-and-2022-global-totals/#:~:text=Total%20world%20crude%20steel%20production%20was%201%2C878.5%20Mt%20in%202022,annual%20production%20totals%20by%20country.] | ||
*[[Farm Yields Per Acre]] shows about 1000 tons per year per acre yields of recycled steel. This means we need '''square mile scale solar operations per million tons (Mt)''' | *[[Farm Yields Per Acre]] shows about 1000 tons per year per acre yields of recycled steel. This means we need '''square mile scale solar operations per million tons (Mt)''' | ||
*About | *About 2000 square miles displaces all of global production. That is 2000 farms. Only 2M acres. This is only 1/10 of the [[Largest Landowners]] | ||
*40% global steel production is from recycled sources | *40% global steel production is from recycled sources | ||
Revision as of 16:13, 21 August 2023
https://edge.alluremedia.com.au/uploads/businessinsider/2017/11/iron-ore-steel.jpg
OSE Case
- Recycling of steel from scrap at 1kWhr/kg
energy input. See Solar Steel.
- Another route is reduction of ore using hydrogen. See Hydrogen Reduction Smelting
- OSE's case would be to produce steel from direct reduction, which is more efficient and lower temperature than a blast furnace. https://en.wikipedia.org/wiki/Direct_reduced_iron
- Iron mining in the USA - [1]
- Chromium mining (for stainless steel) - Chromite (FeCrO) is reduced to Ferrochrome (FeCr) via carbothermic reduction. Chromite in Oregon, Montana, California - [2]
Distributed Market Substitution Calculations
- Global production is 2 billion tons [3]
- Farm Yields Per Acre shows about 1000 tons per year per acre yields of recycled steel. This means we need square mile scale solar operations per million tons (Mt)
- About 2000 square miles displaces all of global production. That is 2000 farms. Only 2M acres. This is only 1/10 of the Largest Landowners
- 40% global steel production is from recycled sources
OSE Workflow
Sourcing
- Recycling
- Ore?
Refining
- Froth Floatation and other ore methods?
- Direct Reduction , and Charcoal Blast Furnace