Computational fluid dynamics simulation of chemical vapor synthesis of WC nanopowder from tungsten hexachloride

The chemical vapor synthesis (CVS) reactor for the preparation of WC nanopowder from tungsten hexachloride was simulated by a two-dimensional multiphase computational fluid dynamics (CFD) model. The model solves the gas-phase governing equations of overall continuity, momentum, energy, and species m...

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Bibliographic Details
Published in:Chemical engineering science 2010-03, Vol.65 (5), p.1773-1780
Main Authors: Ryu, Taegong, Olivas-Martinez, Miguel, Sohn, Hong Yong, Fang, Z.Z., Ring, Terry A.
Format: Article
Language:English
Subjects:
Applied sciences
Chemical engineering
Computational fluid dynamics
Computer simulation
Exact sciences and technology
Heat and mass transfer. Packings, plates
Mathematical analysis
Mathematical modelling
Mathematical models
Nanomaterials
Nanostructure
Particle formation
Population balance
Powder technology
Reactors
Tungsten
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Summary:The chemical vapor synthesis (CVS) reactor for the preparation of WC nanopowder from tungsten hexachloride was simulated by a two-dimensional multiphase computational fluid dynamics (CFD) model. The model solves the gas-phase governing equations of overall continuity, momentum, energy, and species mass transport inside a tubular reactor system. The population balance model is coupled with the gas-phase equations to describe the formation and growth of WC nanoparticles. The model has been validated with experimental data in terms of average particle size and concentration of unreacted precursor at the outlet. The contours of temperature, velocity, species concentration and particle size distribution (PSD) inside the tubular reactor were computed.
ISSN:0009-2509
1873-4405
DOI:10.1016/j.ces.2009.11.016