Method and apparatus for producing molten iron using coal

Patent · Tue Aug 11 04:00:00 EDT 1987

OSTI ID:6167692

Summers, F V; Scarlett, J C; Meissner, D C; Hoffman, G E

This patent describes an apparatus for producing molten iron comprising: a. a molten iron bath gasifier-melter having a top and a bottom; b. an associated direct reduction shaft furnace having a metal oxide feed means at the top thereof and a metal product removal means at the bottom thereof; c. means for introducing particulate coal and oxygen through the bottom of the gasifier-melter; c. inlet means positioned between the top and the bottom of the gasifier-melter for introducing direct reduced iron to the gasifier-melter; e. a gasification gas outlet at the top of the gasifier-melter; f. a first conduit communicating with the gasification gas outlet and a reducing gas inlet to the direct reduction shaft furnace; g. a gas mixer in the first conduit; h. a scrubber-cooler; i. a reacted top gas outlet at the top of the shaft furnace; j. a second conduit communicating with the scrubber-cooler and the reacted top gas outlet; k. a carbon dioxide removal system; l. a third conduit communicating with the scrubber-cooler and the carbon dioxide removal system; and m. a fourth conduit communicating with the carbon dioxide removal system and the gas mixer.

• Assignee: Midrex International B.V. Rotterdam, Zurich
• Patent Number(s): US 4685964
• OSTI ID: 6167692
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
36 MATERIALS SCIENCE
360101 -- Metals & Alloys-- Preparation & Fabrication
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMICAL REACTORS
COAL FINES
COAL GASIFICATION
COOLING SYSTEMS
ELEMENTS
ENERGY SYSTEMS
EQUIPMENT
FLUID FLOW
FLUIDS
FUEL GAS
FUELS
FURNACES
GAS FLOW
GAS FUELS
GASES
GASIFICATION
HEAT EXCHANGERS
IRON
IRON ORES
LIQUID METALS
LIQUIDS
MELTING
METALS
MINERS
NONMETALS
ORES
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PERSONNEL
PHASE TRANSFORMATIONS
POLLUTION CONTROL EQUIPMENT
PRODUCTION
REDUCING AGENTS
REDUCTION
SCRUBBERS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS