Encontro de Energia no Meio Rural

Abstract

MANYA, J.J., GONZALO, A., SANCHEZ, J.L. et al. Gasificación de fangos de depuradora en lecho fluidizado: influencia de la temperatura y de la relación estequiométrica. In Procedings of the 5th Encontro de Energia no Meio Rural, 2004, Campinas (SP) [online]. 2004 [cited 09 October 2024]. Available from: <http://www.proceedings.scielo.br/scielo.php?script=sci_arttext&pid=MSC0000000022004000100062&lng=en&nrm=iso> .

The gasification of a dry granular sewage sludge has been experimentally studied. The gasification was carried out in a bench scale BFB facility, operated at steady state. The attention was focused on the presence of tar in the produced gas which affect the process efficiency and give negative drawbacks in the utilization in motors. The influence of two operating variables (bed temperature and equivalence ratio) on the gasification performances has been explored. Results show that the composition of produced gas is quite dependent of the variables analyzed. However, the results of tar yield show an unexpected behaviour.

Keywords : Gasificación; lecho fluidizado; fangos de depuradora; alquitranes.