METHOD OF COAL GASIFICATION AND DIRECT IRONMAKING AND SYSTEM THEREFOR

A system of coal gasification and direct ironmaking which is effective in attaining both heat recovery in a coal-based direct ironmaking process and a reduction in equipment investment in a coal gasification process. The system is characterized by being equipped with: a waste heat boiler (16) for re...

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Bibliographic Details
Main Authors MOTOYUKI MASAHIRO, TATEISHI MASATAKA
Format Patent
LanguageEnglish
Korean
Published 06.07.2011
Subjects
CARBURETTING AIR OR OTHER GASES
CHEMISTRY
FUELS
LUBRICANTS
MANUFACTURE OF IRON OR STEEL
METALLURGY
METALLURGY OF IRON
PEAT
PETROLEUM, GAS OR COKE INDUSTRIES
PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROMSOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES
TECHNICAL GASES CONTAINING CARBON MONOXIDE
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Summary:A system of coal gasification and direct ironmaking which is effective in attaining both heat recovery in a coal-based direct ironmaking process and a reduction in equipment investment in a coal gasification process. The system is characterized by being equipped with: a waste heat boiler (16) for recovering heat of gas exhausted from a coal gasification furnace; a heater (7) provided in exhaust gas lines (la and 1b) of a heat reduction furnace (1) in the coal-based direct ironmaking process and superheating the steam generated by and exhausted from the waste heat boiler (16); and a superheated steam line (23) for supplying the steam superheated by the heater (7) as an oxidant to the coal gasification furnace (10).
Bibliography:Application Number: KR20117006397