A computational fluid dynamic model for a novel flash ironmaking process

Silvia E. Perez-Fontes, Hong Yong Sohn, Miguel Olivas-Martinez

Producción científica: Capítulo del libro/informe/acta de congresoContribución a la conferenciarevisión exhaustiva

Resumen

A computational fluid dynamic model for a novel flash ironmaking process based on the direct gaseous reduction of iron oxide concentrates is presented. The model solves the three-dimensional governing equations including both gas-phase and gas-solid reaction kinetics. The turbulence-chemistry interaction in the gas-phase is modeled by the eddy dissipation concept incorporating chemical kinetics. The particle cloud model is used to track the particle phase in a Lagrangian framework. A nucleation and growth kinetics rate expression is adopted to calculate the reduction rate of magnetite concentrate particles. Benchmark experiments reported in the literature for a nonreacting swirling gas jet and a nonpremixed hydrogen jet flame were simulated for validation. The model predictions showed good agreement with measurements in terms of gas velocity, gas temperature and species concentrations. The relevance of the computational model for the analysis of a bench reactor operation and the design of an industrial-pilot plant is discussed.

Idioma originalInglés
Título de la publicación alojadaCelebrating the Megascale
Subtítulo de la publicación alojadaProceedings of the Extraction and Processing Division Symposium on Pyrometallurgy in Honor of David G.C. Robertson - Held During TMS 2014 143rd Annual Meeting and Exhibition
EditorialMinerals, Metals and Materials Society
Páginas385-392
Número de páginas8
ISBN (versión impresa)9781118889619
DOI
EstadoPublicada - 2014
EventoCelebrating the Megascale: Extraction and Processing Division Symposium on Pyrometallurgy in Honor of David G.C. Robertson - TMS 2014 143rd Annual Meeting and Exhibition - San Diego, CA, Estados Unidos
Duración: 16 feb. 201420 feb. 2014

Serie de la publicación

NombreTMS Annual Meeting

Conferencia

ConferenciaCelebrating the Megascale: Extraction and Processing Division Symposium on Pyrometallurgy in Honor of David G.C. Robertson - TMS 2014 143rd Annual Meeting and Exhibition
País/TerritorioEstados Unidos
CiudadSan Diego, CA
Período16/02/1420/02/14

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