Revision as of 16:14, 21 August 2023

OSE Case

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]

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 the size of the Largest Landowners
40% global steel production is from recycled sources

@@ Line 14: / Line 14: @@
 *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)'''
-*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]]
+*About 2000 square miles displaces all of global production. That is 2000 farms. Only 2M acres. This is the size of the [[Largest Landowners]]
 *40% global steel production is from recycled sources