PROBIEN   20416
INSTITUTO DE INVESTIGACION Y DESARROLLO EN INGENIERIA DE PROCESOS, BIOTECNOLOGIA Y ENERGIAS ALTERNATIVAS
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Non-isothermal combustion model taking into account the heavy metal vaporization : application to municipal solid waste incineration
Autor/es:
GERMÁN D. MAZZA; QUENTIN FALCOZ; JOSÉ SORIA; DANIEL GAUTHIER; GILLES FLAMANT
Lugar:
Gdansk
Reunión:
Conferencia; 15th. International Conference on Heavy Metals in the Environment; 2010
Institución organizadora:
Chemical Faculty of Gdansk University of Technology
Resumen:
A particulate model was developed. It combines solid waste particle combustion and heavy metal vaporization from burning particles during municipal solid waste incineration in a fluidized bed. This model combines an Asymptotic Combustion model for the carbonaceous solid combustion and a Shrinking Core model to describe the heavy metal vaporization phenomenon, and the particle is considered non-isothermal, as an improvement of the simpler isothermal case developed before. A parametric study shows the temperature influence on the global metal vaporization process. The simulation results are compared to experimental data obtained with Cd-spiked waste particles burning in a lab-scale fluid bed incinerator, and they are also compared to the results of the isothermal model.  It is shown that conduction in the particle affects strongly the vaporization rate variation with time and that the present version of the model fits well both the shape of the plots and the maximum HM vaporization rates for all bed temperatures.