System and method for producing metallic iron

Title: System and method for producing metallic iron

Abstract

A method of production of metallic iron nodules comprises assembling a hearth furnace having a moveable hearth comprising refractory material and having a conversion zone and a fusion zone, providing a hearth material layer comprising carbonaceous material on the refractory material, providing a layer of reducible material comprising and iron bearing material arranged in discrete portions over at least a portion of the hearth material layer, delivering oxygen gas into the hearth furnace to a ratio of at least 0.8:1 ponds of oxygen to pounds of iron in the reducible material to heat the conversion zone to a temperature sufficient to at least partially reduce the reducible material and to heat the fusion zone to a temperature sufficient to at least partially reduce the reducible material, and heating the reducible material to form one or more metallic iron nodules and slag.

Inventors:: Englund, David J.; Schlichting, Mark; Meehan, John; Crouch, Jeremiah; Wilson, Logan

Issue Date:: 2014-07-29

Research Org.:: Nu-Iron Technology LLC, Charlotte, NC (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1149932

Patent Number(s):: 8,790,442

Application Number:: 13/499,152

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


                    Englund, David J., Schlichting, Mark, Meehan, John, Crouch, Jeremiah, and Wilson, Logan. System and method for producing metallic iron.  United States: N. p., 2014. 
        Web.

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                    Englund, David J., Schlichting, Mark, Meehan, John, Crouch, Jeremiah, & Wilson, Logan. System and method for producing metallic iron.  United States.

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                    Englund, David J., Schlichting, Mark, Meehan, John, Crouch, Jeremiah, and Wilson, Logan. Tue .  
        "System and method for producing metallic iron".  United States.  https://www.osti.gov/servlets/purl/1149932.

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@article{osti_1149932,

  title        = {System and method for producing metallic iron},

  author       = {Englund, David J. and Schlichting, Mark and Meehan, John and Crouch, Jeremiah and Wilson, Logan},

  abstractNote = {A method of production of metallic iron nodules comprises assembling a hearth furnace having a moveable hearth comprising refractory material and having a conversion zone and a fusion zone, providing a hearth material layer comprising carbonaceous material on the refractory material, providing a layer of reducible material comprising and iron bearing material arranged in discrete portions over at least a portion of the hearth material layer, delivering oxygen gas into the hearth furnace to a ratio of at least 0.8:1 ponds of oxygen to pounds of iron in the reducible material to heat the conversion zone to a temperature sufficient to at least partially reduce the reducible material and to heat the fusion zone to a temperature sufficient to at least partially reduce the reducible material, and heating the reducible material to form one or more metallic iron nodules and slag.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2014},

  month        = {7}

}

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Works referenced in this record:

High Temperature Electrolysis For Syngas Production
patent-application, January 2008

Stoots, Carl; O'Brien, James; Herring, James
US Patent Application 11/461337; 20080023338
URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220080023338%22.PGNR.&OS=DN/20080023338&RS=DN/20080023338

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Figueroa, José D.; Fout, Timothy; Plasynski, Sean
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DOI: 10.1016/S1750-5836(07)00094-1

Impurity impacts on the purification process in oxy-fuel combustion based CO₂ capture and storage system
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Li, H.; Yan, J.; Yan, J.
Applied Energy, Vol. 86, Issue 2, p. 202-213
DOI: 10.1016/j.apenergy.2008.05.006

Simultaneous easy CO2 recovery and drastic reduction of SOx and NOx in O2/CO2 coal combustion with heat recirculation⋆
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Liu, H.
Fuel, Vol. 82, Issue 11
DOI: 10.1016/S0016-2361(03)00067-X

The Evolution of Ironmaking Process Based on Coal-Containing Iron Ore Agglomerates.
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Lu, W-K.; Huang, D. Frank
ISIJ International, Vol. 41, Issue 8
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Similar Records

Title: System and method for producing metallic iron

Abstract

Citation Formats

High Temperature Electrolysis For Syngas Production patent-application, January 2008

Advances in CO2 capture technology—The U.S. Department of Energy's Carbon Sequestration Program journal, January 2008

Impurity impacts on the purification process in oxy-fuel combustion based CO2 capture and storage system journal, February 2009

Simultaneous easy CO2 recovery and drastic reduction of SOx and NOx in O2/CO2 coal combustion with heat recirculation⋆ journal, July 2003

The Evolution of Ironmaking Process Based on Coal-Containing Iron Ore Agglomerates. journal, January 2001

High Temperature Electrolysis For Syngas Production
patent-application, January 2008

Advances in CO₂ capture technology—The U.S. Department of Energy's Carbon Sequestration Program
journal, January 2008

Impurity impacts on the purification process in oxy-fuel combustion based CO₂ capture and storage system
journal, February 2009

Simultaneous easy CO2 recovery and drastic reduction of SOx and NOx in O2/CO2 coal combustion with heat recirculation⋆
journal, July 2003

The Evolution of Ironmaking Process Based on Coal-Containing Iron Ore Agglomerates.
journal, January 2001