Steel Production
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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 140 million 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)
OSE Workflow
Sourcing
- Recycling
- Ore?
Refining
- Froth Floatation and other ore methods?
- Direct Reduction , and Charcoal Blast Furnace