Biochar/Iron Co-Production System

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Small rotary kiln, Brazos County TX, 1966 (image from: Cushing Memorial Library and Archives, Texas A&M via CC license)

Idea to couple the production of biochar with the reduction of iron ore to metallic iron. The pyrolysis gas generated during char production is not flared off but used in a rotary kiln for iron reduction. The process is carbon-negative. Heat is another co-product that could be used for space heating, greenhouses, etc.

Similar concept to this one: Biochar-Lime Co-production System.