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Methodology for the Numerical Simulation of Natural Gas, Coal, and Coke Combustion in a Blast Furnace

[+] Author Affiliations
William Walker, Mingyan Gu, Chenn Zhou

Purdue University Calumet, Hammond, IN

John D’Alessio

USSC Hamilton Works, Hamilton, Ontario, Canada

Neil Macfadyen

Union Gas Ltd., Chatham, Ontario, Canada

Paper No. HT2008-56363, pp. 215-223; 9 pages
doi:10.1115/HT2008-56363
From:
  • ASME 2008 Heat Transfer Summer Conference collocated with the Fluids Engineering, Energy Sustainability, and 3rd Energy Nanotechnology Conferences
  • Heat Transfer: Volume 3
  • Jacksonville, Florida, USA, August 10–14, 2008
  • Conference Sponsors: Heat Transfer Division
  • ISBN: 978-0-7918-4849-4 | eISBN: 0-7918-3832-3
  • Copyright © 2008 by ASME

abstract

A blast furnace is a reaction vessel in which iron ore is converted to molten iron. High rate pulverized coal injection (PCI) into a blast furnace (BF) is an existing process that is known to decrease the amount of coke in the ironmaking process. Natural gas co-injection with pulverized coal increases the burnout and devolatilization rates of pulverized coal. Also, hydrogen produced from natural gas combustion is a powerful reducing agent of iron (III) oxide, releasing pure iron that trickles down and is eventually removed through the taphole. Due to the inherent complexity of the blast furnace ironmaking process, numerical simulation can prove to be quite difficult. This paper describes a three step methodology for modeling blast furnace combustion, and its application to a furnace in operation at USSC Hamilton Works.

Copyright © 2008 by ASME

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