The present work concerns with Computational Fluid-dynamics modelling of biomass gasification in a fluidized bed reactor, where a dispersed phase, consisting of solid particles, is fluidized by air (fluid phase) and transported upwards through a vertical riser. The main aims of the mathematical model were to optimize the reactor geometrical key parameters (diameter and length of bed, diameter and shape of the dispersed phase, etc,) by parametric analysis, investigating the impact of gasifier temperature and air supply in order to identify the best fluidized bed configuration. The design of the fluidized bed reactors required a comprehensive investigation in order to achieve complete information on conversion behaviour, for understanding the sources of performance limitations and identify possible means of process enhancement from the perspective of reactor configuration.
COMPUTATIONAL FLUID-DYNAMICS MODELLING OF BIOMASS GASIFICATION IN A FLUIDIZED BED REACTOR
F Urbani;S Maisano;V Chiodo
2017
Abstract
The present work concerns with Computational Fluid-dynamics modelling of biomass gasification in a fluidized bed reactor, where a dispersed phase, consisting of solid particles, is fluidized by air (fluid phase) and transported upwards through a vertical riser. The main aims of the mathematical model were to optimize the reactor geometrical key parameters (diameter and length of bed, diameter and shape of the dispersed phase, etc,) by parametric analysis, investigating the impact of gasifier temperature and air supply in order to identify the best fluidized bed configuration. The design of the fluidized bed reactors required a comprehensive investigation in order to achieve complete information on conversion behaviour, for understanding the sources of performance limitations and identify possible means of process enhancement from the perspective of reactor configuration.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
