Amb motiu del tancament d'estiu, la validació de documents es reprendrà a partir del 28 d'agost de 2026. Disculpeu les molèsties.
Con motivo del cierre de verano, la validación de documentos se reanudará a partir del 28 de agosto de 2026. Disculpad las molestias
Due to the summer closure, document validation will resume starting August 28, 2026. We apologize for any inconvenience.

Fitxers

716271.pdf (1.93 MB)

Tipus de document

Article

Versió

Versió publicada

Data de publicació

2022-04-01

Llicència de publicació

cc-by-nc-nd (c) Biset Peiró, Martí, et al, 2022
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/184267

Ignition of CO2 methanation using DBD-plasma catalysis in an adiabatic reactor

Títol de la revista

Autors

Director/Tutor

ISSN de la revista

Títol del volum

Recurs relacionat

https://doi.org/10.1016/j.cej.2021.133638

Resum

In this work, a novel strategy of the use of dielectric barrier discharge (DBD) plasma-catalysis for exothermic reactions is presented. DBD-plasma is used as reaction ignitor, rather than the classical approach of continuous operation, by taking advantage of the synergy between catalytic plasma activation from room temperature and a self-sustained exothermic reaction. CO2 methanation reaction was performed in a thermal insulated reactor using an active nickel-based catalyst loaded in two catalytic bed sections, with electrodes implemented solely in the first section. DBD plasma was employed to activate the reaction from cold conditions with the subsequent increase in reactor temperature and, finally, reaction was self-sustained by thermal-catalysis. The experimental results pointed out the sensitive dependence of the reactor temperature on the gas flow rate during the plasma operation. Low-energy conditions were found in which the reaction could operate in autothermal mode, after plasma shut-off. Power and start-up time were optimized, obtaining a considerable low start-up time from cold conditions (25 ◦C) of only 3 min. Besides, the autothermal operation mode was maintained for 8 h without any energy input. This proof-of-concept work demonstrates that plasma can be implemented as initial power ignition in exothermic reactions using proper reactor design and conditions, and then, the reactor can operate in autothermal mode.

Matèries

Catàlisi, Reactors químics, Diòxid de carboni

Matèries (anglès)

Catalysis, Chemical reactors, Carbon dioxide

Citació

Col·leccions

Articles publicats en revistes (Ciència dels Materials i Química Física)
Articles publicats en revistes (Institut de Nanociència i Nanotecnologia (IN2UB))

Citació

BISET PEIRÓ, Martí, GUILERA SALA, Jordi and ANDREU ARBELLA, Teresa. Ignition of CO2 methanation using DBD-plasma catalysis in an adiabatic reactor. Chemical Engineering Journal. 2022. Vol. 433, num. 133638. ISSN 1385-8947. [consulted: 8 of August of 2026]. Available at: https://hdl.handle.net/2445/184267

Exportar metadades

JSON - METS

Compartir registre