Method of producing reduced iron and light oil from iron ore...

C - Chemistry – Metallurgy – 10 – G

Patent

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53/24, 196/76

C10G 9/00 (2006.01)

Patent

CA 1250540

METHOD OF PRODUCING REDUCED IRON AND LIGHT OIL FROM IRON ORE AND HEAVY OIL ABSTRACT OF THE DISCLOSURE A method of producing reduced iron and light oil from iron ore and heavy oil which comprises a thermal cracking step of subjecting heavy oil to thermal cracking while retaining iron ore particles in a fluidized state to produce light oil and simultaneously to deposit coke as by-product on the surface of the iron ore particles; a gasification step of putting the coke-deposited ore in contact with an oxidizing gas including steam and oxygen in a fluidized state to react the coke with the gas thereby to produce a reducing gas containing hydrogen and carbon monooxide and of heating the coke-deposited ore upward of a reduction temperature of iron ore by partial oxidization of the coke, and a reduction step of reducing the coke- deposited iron ore in a fluidized state by the reducing gas to product reduced iron. When the gasification step is performed by an oxidizing gas containing a majority of steam and up to 15 vol. %, based on the steam, of oxygen at 800 - 1000 °C under a pressure of 0 - 10 kg/cm2 G, a reducing gas containing high-concentration hydrogen gas is obtained.

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