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Title: System and method for producing metallic iron

Abstract

A hearth furnace for producing metallic iron material has a furnace housing having a drying/preheat zone, a conversion zone, a fusion zone, and optionally a cooling zone, the conversion zone is between the drying/preheat zone and the fusion zone. A moving hearth is positioned within the furnace housing. A hood or separation barrier within at least a portion of the conversion zone, fusion zone or both separates the fusion zone into an upper region and a lower region with the lower region adjacent the hearth and the upper region adjacent the lower region and spaced from the hearth. An injector introduces a gaseous reductant into the lower region adjacent the hearth. A combustion region may be formed above the hood or separation barrier.

Inventors:
; ; ; ; ;
Issue Date:
Research Org.:
Nu-Iron Technology, LLC (Charlotte, NC)
Sponsoring Org.:
USDOE
OSTI Identifier:
1093548
Patent Number(s):
8,535,602
Application Number:
13/351,742
Assignee:
Nu-Iron Technology, LLC (Charlotte, NC)
DOE Contract Number:  
FG36-05GO15185
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Bleifuss, Rodney L, Englund, David J, Iwasaki, Iwao, Fosnacht, Donald R, Brandon, Mark M, and True, Bradford G. System and method for producing metallic iron. United States: N. p., 2013. Web.
Bleifuss, Rodney L, Englund, David J, Iwasaki, Iwao, Fosnacht, Donald R, Brandon, Mark M, & True, Bradford G. System and method for producing metallic iron. United States.
Bleifuss, Rodney L, Englund, David J, Iwasaki, Iwao, Fosnacht, Donald R, Brandon, Mark M, and True, Bradford G. Tue . "System and method for producing metallic iron". United States. https://www.osti.gov/servlets/purl/1093548.
@article{osti_1093548,
title = {System and method for producing metallic iron},
author = {Bleifuss, Rodney L and Englund, David J and Iwasaki, Iwao and Fosnacht, Donald R and Brandon, Mark M and True, Bradford G},
abstractNote = {A hearth furnace for producing metallic iron material has a furnace housing having a drying/preheat zone, a conversion zone, a fusion zone, and optionally a cooling zone, the conversion zone is between the drying/preheat zone and the fusion zone. A moving hearth is positioned within the furnace housing. A hood or separation barrier within at least a portion of the conversion zone, fusion zone or both separates the fusion zone into an upper region and a lower region with the lower region adjacent the hearth and the upper region adjacent the lower region and spaced from the hearth. An injector introduces a gaseous reductant into the lower region adjacent the hearth. A combustion region may be formed above the hood or separation barrier.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2013},
month = {9}
}

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