Revision as of 16:02, 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 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)
About 200 square miles displaces all of global production. That is 10x20 miles of area, or 200 farms.
40% global steel production is from recycled sources

@@ Line 13: / Line 13: @@
 =Distributed Market Substitution Calculations=
 *Global production is 140 million 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 200 square miles displaces all of global production. That is 10x20 miles of area, or 200 farms.
 *40% global steel production is from recycled sources