Analyse numérique de la conduite du haut-fourneau avec recyclage du gaz de gueulard

Translated title of the contribution: Numerical analysis of blast furnace operations with top gas recycling

H. Nogami, M. Chu, J. I. Yagi

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)


Blast furnace operations with top gas recycling and/or plastics injection were examined by numerical modelling. Comparisons were made under the condition of constant hot metal temperature and constant thermal state of raceway combustion. The top gas recycling after CO2 scrubbing, combined with plastics injection, enhances concentration of reducing gas components due to their re-circulation and elimination of nitrogen inflow. This increase in reduction potential accelerates the reduction of iron bearing materials and thus improves the hot metal productivity and reduces the environmental impact of the blast furnace. The higher hydrogen level of the reducing gas relaxes the constraints on fluidization and flooding, thus allowing a potential further improvement of the hot metal productivity.

Translated title of the contributionNumerical analysis of blast furnace operations with top gas recycling
Original languageFrench
Pages (from-to)189-197
Number of pages9
JournalRevue de Metallurgie. Cahiers D'Informations Techniques
Issue number3
Publication statusPublished - 2005 Jan 1

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry


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