Corn cob biomass residues: Synergies between thermochemical processes for biofuel production and adsorbent materials for the bioenergy sector
This research uses corn cob (CC), a renewable material, to make biofuels. The energy conversion was done by conventional and flash pyrolysis (750–850 °C), showing how the process affects the yield and properties of the biofuels. The CC stood out for their high carbon content (48.19 %) and low ash co...
| Autores: | , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2025 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/402953 |
| Acceso en línea: | http://hdl.handle.net/10261/402953 https://api.elsevier.com/content/abstract/scopus_id/85218125233 |
| Access Level: | acceso abierto |
| Palabra clave: | Alkaline chemical activation Bioenergy Biofuels Corncob waste Flash/conventional pyrolysis High pressure gas adsorption http://metadata.un.org/sdg/9 http://metadata.un.org/sdg/7 Ensure access to affordable, reliable, sustainable and modern energy for all Build resilient infrastructure, promote inclusive and sustainable industrialization and foster innovation |
| Sumario: | This research uses corn cob (CC), a renewable material, to make biofuels. The energy conversion was done by conventional and flash pyrolysis (750–850 °C), showing how the process affects the yield and properties of the biofuels. The CC stood out for their high carbon content (48.19 %) and low ash content (1.16 %). Flash pyrolysis increased the gaseous fraction (69.8 %) and the concentration of combustible gases (higher heating value (HHV) = 16.31 MJ/kg). Research has also been carried out on the production of activated carbons from CC char to separate gas mixtures, store gas or upgrade biogas. Higher temperatures and/or amounts of activator improved their textural properties (BET surface area and total pore volume up to 1982 m<sup>2</sup>/g and 0.820 cm<sup>3</sup>/g). These adsorbents are highly effective in CO<inf>2</inf> adsorption, with a capacity of up to 15.3 mmol/g at 3 MPa for that obtained with KOH at 700 °C and 2:1 wt ratio. They are good at absorbing methane at 3 MPa with a maximum of 8.8 mmol/g when prepared with KOH at 800 °C and 2:1 wt ratio. Hydrogen adsorption was limited. The potential of CC for biofuel production through pyrolysis and the development of adsorbents applicable to the bioenergy sector have been proven. |
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