000032190 001__ 32190
000032190 005__ 20170503140338.0
000032190 0247_ $$2doi$$a10.1016/j.fuel.2014.03.059
000032190 0248_ $$2sideral$$a86684
000032190 037__ $$aART-2014-86684
000032190 041__ $$aeng
000032190 100__ $$0(orcid)0000-0002-8704-9274$$aGil-Lalaguna, N.
000032190 245__ $$aAir-steam gasification of char derived from sewage sludge pyrolysis. Comparison with the gasification of sewage sludge
000032190 260__ $$c2014
000032190 5060_ $$aAccess copy available to the general public$$fUnrestricted
000032190 5203_ $$aAir-steam gasification of char derived from fast pyrolysis of sewage sludge has been experimentally evaluated in a fluidized bed as a route towards a full recovery of energy from sewage sludge. The results have been compared with those obtained from the direct gasification of sewage sludge in order to evaluate how the previous pyrolysis stage affects the subsequent gasification process. The fixed carbon content in the solid increased after the pyrolysis stage so that heterogeneous reactions of carbon with steam or CO2 assumed greater importance during char gasification than during sewage sludge gasification. Furthermore, char gasification led to an improvement in the gas yield -calculated on a dry and ash-free basis (daf)- due to the increased concentration of carbon in the organic fraction of the solid after the pyrolysis step, with an increase in the average CO yield of about 70% -in terms of g/kg solid daf-. The reduction in the fraction of carbon which forms tar is another advantage of char gasification over the direct gasification of sewage sludge, with an average decrease of about 45%. Regarding the influence of the operating conditions, the response variables were mainly controlled by the same factors in both processes.
000032190 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/CTQ2010-20137
000032190 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000032190 590__ $$a3.52$$b2014
000032190 591__ $$aENGINEERING, CHEMICAL$$b13 / 135 = 0.096$$c2014$$dQ1$$eT1
000032190 591__ $$aENERGY & FUELS$$b19 / 89 = 0.213$$c2014$$dQ1$$eT1
000032190 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000032190 700__ $$0(orcid)0000-0002-9705-2207$$aSánchez, J.L.$$uUniversidad de Zaragoza
000032190 700__ $$0(orcid)0000-0002-3771-8994$$aMurillo, M.B.$$uUniversidad de Zaragoza
000032190 700__ $$aRuiz, V.
000032190 700__ $$0(orcid)0000-0002-4364-2535$$aGea, G.$$uUniversidad de Zaragoza
000032190 7102_ $$15005$$2790$$aUniversidad de Zaragoza$$bDepartamento de Ingeniería Química y Tecnologías del Medio Ambiente$$cTecnologías del Medio Ambiente
000032190 7102_ $$15005$$2555$$aUniversidad de Zaragoza$$bDepartamento de Ingeniería Química y Tecnologías del Medio Ambiente$$cIngeniería Química
000032190 773__ $$g129 (2014), 147-155$$pFuel$$tFUEL$$x0016-2361
000032190 8564_ $$s605759$$uhttps://zaguan.unizar.es/record/32190/files/texto_completo.pdf$$yPostprint
000032190 8564_ $$s63429$$uhttps://zaguan.unizar.es/record/32190/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000032190 909CO $$ooai:zaguan.unizar.es:32190$$particulos$$pdriver
000032190 951__ $$a2017-05-03-13:58:35
000032190 980__ $$aARTICLE