Oxidation of zinc sulphide concentrate in a fluidised bed reactor - Part 1: Characterization of the fluid dynamics of the particle bed



Título del documento: Oxidation of zinc sulphide concentrate in a fluidised bed reactor - Part 1: Characterization of the fluid dynamics of the particle bed
Revista: Brazilian journal of chemical engineering
Base de datos: PERIÓDICA
Número de sistema: 000309013
ISSN: 0104-6632
Autores: 1

Instituciones: 1Pontificia Universidade Catolica do Rio de Janeiro, Departamento de Ciencia dos Materiais e Metalurgia, Rio de Janeiro. Brasil
Año:
Periodo: Mar
Volumen: 22
Número: 1
Paginación: 117-125
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés The oxidation kinetics of a blend of zinc sulphide concentrates in a bench-scale fluidised bed reactor operated in batch regime was studied. This work involves the fluid dynamics characterisation of the bed during the reaction. Its purpose is to determine bed behaviour and to assess the experimental conditions used in the roasting experiments. The characterisation is derived from both fluid dynamics maps and an analysis based on the dynamics of gas bubble growth in the bed. Bed behaviour under any experimental condition is evaluated with the fluid dynamics maps. The transitions fixed/fluidised bed, fluidised bed/pneumatic transport and between several fluidisation regimes are obtained from curves of dimensionless gas velocity versus dimensionless particle diameters. The possibility of fluidisation in the slugging regime is verified by the dynamics of gas bubble growth in the bed
Disciplinas: Ingeniería,
Química
Palabras clave: Ingeniería metalúrgica,
Ingeniería química,
Sulfuro de zinc,
Oxidación,
Lecho fluidizado,
Dinámica de fluidos
Keyword: Engineering,
Chemistry,
Chemical engineering,
Metallurgical engineering,
Zinc sulphide,
Oxidation,
Fluidized bed,
Fluid dynamics
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