METHOD OF COAL GASIFICATION AND DIRECT IRONMAKING AND SYSTEM THEREFOR

A system for 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) whic...

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Bibliographic Details
Main Authors TATEISHI, MASATAKA, MOTOYUKI, MASAHIRO
Format Patent
LanguageEnglish
French
Published 01.04.2010
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 for 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) which recovers the heat of a gas discharged from a coal gasification furnace; a heater (7) disposed in lines (1a and 1b) for a gas discharged from a heating/reducing furnace (1) used in the coal-based direct ironmaking process, the heater (7) superheating the steam generated by and discharged from the waste-heat boiler (16); and a superheated-steam line (23) which supplies, as an oxidizing agent, the superheated steam obtained with the heater (7) to the coal gasification furnace (10).
Bibliography:Application Number: CA20092738288