Fluid-Dynamics of a Cold Model of a Fluidized Bed Gasification System with Reduced Tar Content

A. Gómez-Barea, D. Fuentes, S. Nilsson, J. Tirado & P. Ollero
A new gasification concept for biomass/waste gasification for electricity production for small/medium application has been developed. The gasification system is aimed at improving the two major drawbacks in fluidized beds (FB), i.e. the low char conversion and the high tar content in the gas. The system comprises a FB devolatilizer, an air/steam reformer of the gas coming from the devolatilizer, and a chemical quench of the unconverted char removed from the FB. The thermal control...