System and method for making metallic iron with reduced CO.sub.2 emissions

Kiesel, Richard F; Englund, David J; Schlichting, Mark; Meehan, John; Crouch, Jeremiah; Wilson, Logan

Title: System and method for making metallic iron with reduced CO.sub.2 emissions

Abstract

A method and system for making metallic iron nodules with reduced CO.sub.2 emissions is disclosed. The method includes: assembling a linear hearth furnace having entry and exit portions, at least a conversion zone and a fusion zone, and a moving hearth adapted to move reducible iron bearing material through the furnace on contiguous hearth sections; assembling a shrouded return substantially free of air ingress extending adjacent at least the conversion and fusion zones of the furnace through which hearth sections can move from adjacent the exit portion to adjacent the entry portion of the furnace; transferring the hearth sections from the furnace to the shrouded return adjacent the exit portion; reducing reducible material in the linear hearth furnace to metallic iron nodules; and transporting gases from at least the fusion zone to the shrouded return to heat the hearth sections while in the shrouded return.

Inventors:: Kiesel, Richard F; Englund, David J; Schlichting, Mark; Meehan, John; Crouch, Jeremiah; Wilson, Logan

Issue Date:: 2014-10-14

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

Sponsoring Org.:: USDOE

OSTI Identifier:: 1159972

Patent Number(s):: 8858678

Application Number:: 13/499,021

Assignee:: Nu-Iron Technology, LLC (Charlotte, NC)

Patent Classifications (CPCs):: Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

C - CHEMISTRY C21 - METALLURGY OF IRON C21B - MANUFACTURE OF IRON OR STEEL

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Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
Y02P10/122 - by capturing CO2

C - CHEMISTRY C21 - METALLURGY OF IRON C21B - MANUFACTURE OF IRON OR STEEL
C21B13/0046 - {making metallised agglomerates or iron oxide}

F - MECHANICAL ENGINEERING F27 - FURNACES F27D - DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
F27D17/004 - {Systems for reclaiming waste heat}

F - MECHANICAL ENGINEERING F27 - FURNACES F27B - FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL
F27B9/3005 - {arrangements for circulating gases}
F27B9/021 - {having two or more parallel tracks}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
Y02P10/134 - by CO2 avoidance

C - CHEMISTRY C21 - METALLURGY OF IRON C21B - MANUFACTURE OF IRON OR STEEL
C21B13/10 - in hearth-type furnaces

F - MECHANICAL ENGINEERING F27 - FURNACES F27D - DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
F27D17/008 - {cleaning gases}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
Y02P10/20 - Process efficiency

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DOE Contract Number:: FG36-05GO15185

Resource Type:: Patent

Resource Relation:: Patent File Date: 2010 Sep 28

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Citation Formats


                    Kiesel, Richard F, Englund, David J, Schlichting, Mark, Meehan, John, Crouch, Jeremiah, and Wilson, Logan. System and method for making metallic iron with reduced CO.sub.2 emissions.  United States: N. p., 2014. 
        Web.

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                    Kiesel, Richard F, Englund, David J, Schlichting, Mark, Meehan, John, Crouch, Jeremiah, & Wilson, Logan. System and method for making metallic iron with reduced CO.sub.2 emissions.  United States.

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                    Kiesel, Richard F, Englund, David J, Schlichting, Mark, Meehan, John, Crouch, Jeremiah, and Wilson, Logan. Tue .  
        "System and method for making metallic iron with reduced CO.sub.2 emissions".  United States.  https://www.osti.gov/servlets/purl/1159972.

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@article{osti_1159972,

  title        = {System and method for making metallic iron with reduced CO.sub.2 emissions},

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

  abstractNote = {A method and system for making metallic iron nodules with reduced CO.sub.2 emissions is disclosed. The method includes: assembling a linear hearth furnace having entry and exit portions, at least a conversion zone and a fusion zone, and a moving hearth adapted to move reducible iron bearing material through the furnace on contiguous hearth sections; assembling a shrouded return substantially free of air ingress extending adjacent at least the conversion and fusion zones of the furnace through which hearth sections can move from adjacent the exit portion to adjacent the entry portion of the furnace; transferring the hearth sections from the furnace to the shrouded return adjacent the exit portion; reducing reducible material in the linear hearth furnace to metallic iron nodules; and transporting gases from at least the fusion zone to the shrouded return to heat the hearth sections while in the shrouded return.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2014},

  month        = {10}

}

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Works referenced in this record:

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

Figueroa, José D.; Fout, Timothy; Plasynski, Sean
International Journal of Greenhouse Gas Control, Vol. 2, Issue 1, p. 9-20
https://doi.org/10.1016/S1750-5836(07)00094-1

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

Li, H.; Yan, J.; Yan, J.
Applied Energy, Vol. 86, Issue 2, p. 202-213
https://doi.org/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⋆
journal, July 2003

Liu, H.
Fuel, Vol. 82, Issue 11
https://doi.org/10.1016/S0016-2361(03)00067-X

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Title: System and method for making metallic iron with reduced CO.sub.2 emissions

Abstract

Citation Formats

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

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