Hydrogen production via supercritical water gasification of glycerol enhanced by simple structured catalysts

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dc.creatorMourão, Lucas Clementino
dc.creatorSouza, Guilherme Botelho Meireles de
dc.creatorDias, Isabela Milhomem
dc.creatorOliveira, Sérgio Botelho de
dc.creatorSouza, Thiago Leandro de
dc.creatorAlonso, Christian Gonçalves
dc.date.accessioned2023-09-06T14:03:00Z
dc.date.available2023-09-06T14:03:00Z
dc.date.issued2023
dc.description.abstractThe supercritical water gasification (ScWG) technology is a promising alternative for H2-rich gas production from renewable sources, such as residual glycerol from biodiesel manufacture. Combined with heterogeneous catalysts, the ScWG process can achieve improved selectivity towards the desired products and high conversion efficiency in short reaction times. In this work, the efficiency of a synthesized Ni-based catalyst supported in cordierite (CRD) honeycomb structure on the ScWG of glycerol was evaluated and compared with two commercial automotive catalysts. Initially, to determine the best experimental conditions, the ScWG experiments were conducted in the absence of catalysts at constant conditions pressure (25 Mpa) and volumetric flow rate (10 mL min−1). The temperature range of 400–700 °C and glycerol feed composition between 10 and 34 wt% were evaluated. The catalysts evaluated were characterized by SEM-EDS, XRD, N2 adsorption/desorption, XRF, WDS and TGA. The liquid and gaseous products were analyzed by TOC and gas chromatography, respectively. Results indicated that Ni/CRD catalyst showed the highest H2 yield (5.38 mol H2 per mol of glycerol fed) and long-term stability. Additionally, a comparison between the experimental results on the ScWG of glycerol and simulated thermodynamic equilibrium data was also reported. Thus, results demonstrated the great potential of the prepared catalyst to improve H2-rich gas production from glycerol gasification.pt_BR
dc.identifier.citationMOURÃO, Lucas Clementino et al. Hydrogen production via supercritical water gasification of glycerol enhanced by simple structured catalysts. International Journal of Hydrogen Energy, [s. l.], v. 48, n. 72, p. 27929-27943, 2023. DOI: 10.1016/j.ijhydene.2023.04.008. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0360319923016968?via%3Dihub. Acesso em: 29 ago. 2023.pt_BR
dc.identifier.doi10.1016/j.ijhydene.2023.04.008
dc.identifier.issne- 1879-3487
dc.identifier.issn0360-3199
dc.identifier.urihttps://www.sciencedirect.com/science/article/abs/pii/S0360319923016968?via%3Dihub
dc.language.isoengpt_BR
dc.publisher.countryGra-bretanhapt_BR
dc.publisher.departmentInstituto de Química - IQ (RMG)pt_BR
dc.rightsAcesso Restritopt_BR
dc.subjectHeterogeneous catalysispt_BR
dc.subjectHydrogen productionpt_BR
dc.subjectSupercritical waterpt_BR
dc.subjectBiomasspt_BR
dc.subjectRenewable energypt_BR
dc.titleHydrogen production via supercritical water gasification of glycerol enhanced by simple structured catalystspt_BR
dc.typeArtigopt_BR

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