150429 20251017144646.0 doi 10.1016/j.fuel.2006.04.008 sideral 57524 ART-2006-57524 eng Manya,J. J. Universidad de Zaragoza (orcid)0000-0002-0118-3254 Influence of gas residence time and air ratio on the air gasification of dried sewage sludge in a bubbling fluidised bed 2006 Access copy available to the general public Unrestricted Because little information is available about sewage sludge gasification in a bubbling fluidised bed (BFB), further experiments are required to quantify the power generation potential of dried sewage sludge (DSS) as well as to evaluate the optimum conditions for its gasification. In this work, the influence of the bed height on the process was experimentally determined using a laboratory-scale BFB reactor. The gasification tests were performed at different values of equivalence ratio (λ) and at two values of constant bed height (150 and 300 mm). Attention was focused on the effect of increasing bed height on the gas composition, average cold gas efficiency, and product distribution. Results obtained in this study show that a bed height increase improves the efficiency of the DSS gasification process. This fact could be explained because the high ash content of DSS represents an obstacle to the gas diffusion. info:eu-repo/semantics/openAccess by-nc-nd https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es 1.358 2006 ENGINEERING, CHEMICAL 26 / 109 = 0.239 2006 Q1 T1 ENERGY & FUELS 15 / 60 = 0.25 2006 Q1 T1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Sanchez,J. L. Universidad de Zaragoza (orcid)0000-0002-9705-2207 Abrego,J. Universidad de Zaragoza (orcid)0000-0003-4493-6540 Gonzalo,A. Universidad de Zaragoza (orcid)0000-0001-8960-2689 Arauzo,J. Universidad de Zaragoza (orcid)0000-0002-5959-3168 5005 555 Universidad de Zaragoza Dpto. Ing.Quím.Tecnol.Med.Amb. Área Ingeniería Química 85, 14-15 (2006), 2027-2033 Fuel Fuel 0016-2361 204620 http://zaguan.unizar.es/record/150429/files/texto_completo.pdf Postprint 574762 http://zaguan.unizar.es/record/150429/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:150429 articulos driver 2025-10-17-14:34:13 ARTICLE