Biomass catalytic gasification performance over unsupported Ni‐Ce catalyst for high‐yield hydrogen production

Autor: Eduardo Poggio-Fraccari, María Ángeles Larrubia, Luis J. Alemany, Rafael Granados-Fernández, Marina Cortés-Reyes, Concepción Herrera
Rok vydání: 2019
Předmět:
Zdroj: Biofuels, Bioproducts and Biorefining. 14:20-29
ISSN: 1932-1031
1932-104X
DOI: 10.1002/bbb.2002
Popis: Catalytic gasification of a residual biomass, obtained from yellow horn (YH) (Xanthoceras sorbifolia Bunge), an energy crop, was conducted to obtain a fuel gas rich in hydrogen. Unsupported nickel-based catalyst modified with cerium was developed, characterized, and used in the advanced catalytic gasification of this residual biomass, using H 2 O + CO 2 as the gasifying agent. Tests were performed in a thermobalance coupled to a mass spectrometer to identify the different steps involved in the gasification process and to correlate them with the estimated kinetic parameters. The sequential processes identified were: dehydration-devolatilization, pyrolysis and gasification. The main pyrolysis step presented a calculated activation energy value of 102 kJ mol −1 . A positive effect was observed for the catalyst in the syngas obtained. A synergistic effect of CO 2 and H 2 O used as gasifying agents was found in the gas yield. Hydrogen production was promoted by several reforming and cracking reactions, aided by CeO 2 -NiO catalyst able to co-activate H 2 O + CO 2 . Fil: Granados Fernández, Rafael. Universidad de Málaga; España Fil: Cortés Reyes, Marina. Universidad de Málaga; España Fil: Poggio Fraccari, Eduardo Arístides. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Tecnologías del Hidrogeno y Energias Sostenibles. Universidad de Buenos Aires. Facultad de Ingeniería. Instituto de Tecnologías del Hidrogeno y Energias Sostenibles; Argentina Fil: Herrera, Concepción. Universidad de Málaga; España Fil: Larrubia, María Ángeles. Universidad de Málaga; España Fil: Alemany, Luis J.. Universidad de Málaga; España
Databáze: OpenAIRE
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