000171074 001__ 171074
000171074 005__ 20260505142650.0
000171074 0247_ $$2doi$$a10.3390/pr14081197
000171074 0248_ $$2sideral$$a149151
000171074 037__ $$aART-2026-149151
000171074 041__ $$aeng
000171074 100__ $$ade Lima, Harryson Guimarães
000171074 245__ $$aIntegrated assessment of solid, liquid, and gaseous fuels derived from fixed-bed pyrolysis of waste tires
000171074 260__ $$c2026
000171074 5060_ $$aAccess copy available to the general public$$fUnrestricted
000171074 5203_ $$aThe improper disposal of end-of-life tires poses significant environmental challenges due to their petroleum-based composition and slow degradation, while simultaneously representing an underutilized energy resource. This study investigates the slow pyrolysis of shredded waste tires in a fixed-bed electrically heated reactor to evaluate the production and fuel properties of gaseous, liquid, and solid fractions. Experiments were conducted with 100 g samples under nitrogen at final temperatures of 400, 500, and 600 °C, with residence times of 40, 25, and 10 min, respectively. Higher temperatures promoted gas formation, increasing yields from 27% to 32% and achieving a maximum lower heating value of 30.54 MJ m−3 at 600 °C, with enhanced H2 and CH4 contents. Solid yields decreased slightly (41% to 37%), while char maintained stable heating values (~29 MJ kg−1). Liquid yields remained near 33% and showed high calorific values (~41 MJ kg−1), densities of 700–770 kg m−3, low acidity, low ash content, and increased viscosity at higher temperatures. Energy conversion efficiency reached 74.4% at 500 °C. The integrated evaluation of all fractions under identical conditions highlights fixed-bed pyrolysis as a promising pathway for waste-tire valorization and decentralized fuel production.
000171074 536__ $$9info:eu-repo/grantAgreement/ES/AEI/PID2023-148958OB-C21
000171074 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttps://creativecommons.org/licenses/by/4.0/deed.es
000171074 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000171074 700__ $$aJúnior, Clériston Moura Vieira
000171074 700__ $$0(orcid)0000-0002-0297-1834$$aSantos, Humberto$$uUniversidad de Zaragoza
000171074 700__ $$aJúnior, Adalberto Freire do Nascimento
000171074 700__ $$aAntonino, Antônio Celso Dantas
000171074 700__ $$ada Silva, Sérgio Peres Ramos
000171074 7102_ $$15004$$2590$$aUniversidad de Zaragoza$$bDpto. Ingeniería Mecánica$$cÁrea Máquinas y Motores Térmi.
000171074 773__ $$g14, 8 (2026), 1197 [25 pp.]$$pProcesses$$tPROCESSES$$x2227-9717
000171074 8564_ $$s813250$$uhttps://zaguan.unizar.es/record/171074/files/texto_completo.pdf$$yVersión publicada
000171074 8564_ $$s2336130$$uhttps://zaguan.unizar.es/record/171074/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000171074 909CO $$ooai:zaguan.unizar.es:171074$$particulos$$pdriver
000171074 951__ $$a2026-05-05-13:37:11
000171074 980__ $$aARTICLE