Biomass conversion to renewable hydrogen by aqueous phase reforming based process
Valorisation of three residual biomasses to H2, produced in large scale in Brazil (Pequi, Baru and Cupuaçu husk), was performed by both one-step and two-step APR approaches. One-step (direct) APR of solid biomasses yielded up to 18 mmolH2/gCo at 46 % in gas. The two-step approach involved solubilisa...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2025 |
| País: | España |
| Institución: | Universidad Autónoma de Madrid |
| Repositorio: | Biblos-e Archivo. Repositorio Institucional de la UAM |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.uam.es:10486/733040 |
| Acceso en línea: | https://hdl.handle.net/10486/733040 https://dx.doi.org/10.1016/j.ijhydene.2025.151175 |
| Access Level: | acceso abierto |
| Palabra clave: | Aqueous phase reforming Pt/C catalyst Lignocellulosic waste biomass Hydrothermal pretreatment Química |
| Sumario: | Valorisation of three residual biomasses to H2, produced in large scale in Brazil (Pequi, Baru and Cupuaçu husk), was performed by both one-step and two-step APR approaches. One-step (direct) APR of solid biomasses yielded up to 18 mmolH2/gCo at 46 % in gas. The two-step approach involved solubilisation of biomass by pretreatment at different water-to-biomass ratio (W:B, 1000:1 and 10:1) and temperature followed by APR. After pretreatment optimisation, the best APR results were observed for the hydrolysates obtained at W:B of 10:1, resulting in C conversion of 72 %, and H2 production and concentration of ca. 53 mmol/gTOCo and 54 %, respectively. Characterisation of used catalysts showed that deactivation is mainly related to formation of deposits. Although the APR of hydrolysates obtained at low W:B (10:1) leads to higher formation of deposits, they are less evolved solids than in the case of high W:B (1000:1) hydrolysates and seem to affect less catalytic activity |
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