Eva Francés

Eva Francés holds a Bachelor in Sciences (Chemistry) (1989) and PhD in Science (1993).

She is Professor at the University of Zaragoza since 1992; first, as Assistant Professor (Profesora Asociada), later as Associate Professor of technical school (Titular Escuela Universitaria) (1998) and finally as University Associate Professor (Titular de Universidad) (2008-present), belonging to the area of Chemical Engineering at the School of Engineering and Architecture (EINA) of the University of Zaragoza (UZ).

She has been Professor-Secretary of the University School of Industrial Technical Engineering (1997-2000) and Coordinator of the degree in Chemical Engineering at the UZ (2010-2015). Nowadays, she is a member of the Degree Quality Garantie Comission.

She has developed her research activity in several fields, starting with the kinetic study and modeling of the FCC process, to continue the process of biomass gasification, selective catalytic oxidation, dry reforming of biogas and finally CO₂ hydrogenation. She has also conducted timely studies on water purification and potabilization, such as metal adsorption or catalytic hydrogenation of nitrates.

She is a member of the Research Group of Excellence (recognized by the DGA -Gobierno de Aragón- in 2005): “Catalysis and Reactor Engineering (CREG)” and member of the Engineering Research Institute of Aragon (I3A) from 29 June 2012 to the present.

She has participated in 13 Research and Development projects financed in public calls and 4 projects with companies /administrations.

She has directed more than 120 end-of-career projects (Proyectos Fin de Carrera) and 30 end-of-grade projects (Trabajos Fin de Grado), many of them related to her research tasks.

Orcid: https://orcid.org/0000-0003-3181-195X

Scopus: https://www.scopus.com/authid/detail.uri?authorId=6602320593

26 registros « ‹ 1 de 6 › »

2027

Aragüés-Aldea, P.; Gimeno-Izquierdo, C.; Durán, P.; Renda, S.; Mercader, V. D.; Francés, E.; Peña, J. A.; Herguido, J.

Distributed feeding for improved CH4 selectivity in Ni-Fe catalyzed CO2/biogas methanation Journal Article

En: Fuel, vol. 431, pp. 141925, 2027, ISSN: 0016-2361.

Resumen | Enlaces | BibTeX

@article{ARAGUESALDEA2027141925,

title = {Distributed feeding for improved CH4 selectivity in Ni-Fe catalyzed CO2/biogas methanation},

author = {P. Aragüés-Aldea and C. Gimeno-Izquierdo and P. Durán and S. Renda and V. D. Mercader and E. Francés and J. A. Peña and J. Herguido},

url = {https://www.sciencedirect.com/science/article/pii/S001623612603680X},

doi = {https://doi.org/10.1016/j.fuel.2026.141925},

issn = {0016-2361},

year  = {2027},

date = {2027-01-01},

journal = {Fuel},

volume = {431},

pages = {141925},

abstract = {Carbon dioxide methanation is a promising route for renewable natural gas production, although its performance is often limited by kinetic constraints under severe operating conditions. In this work, distributed reactant feeding in a four-inlet polytropic fixed-bed reactor was investigated as a process intensification strategy for CO2 methanation and biogas upgrading over a conventional methanation catalyst (Ni-Fe). The effects of feeding configuration, GHSV, temperature and feed composition on CO2 conversion and CO selectivity were systematically assessed and compared with conventional co-feeding operation. Distributed CO2 feeding consistently outperformed both conventional and hydrogen-distributed configurations, providing higher CO2 conversions and lower CO selectivities. The beneficial effect was particularly evident at high space velocities and low conversions, where kinetic limitations and selectivity to the unwanted CO are more pronounced, reaching reduction of 50 % in this parameter in the more kinetically-hindered conditions. The same qualitative behaviour was observed when upgrading a synthetic sweetened biogas (70 vol% CH4 and 30 vol% CO2), demonstrating the applicability of the proposed strategy under feed compositions relevant in practice. The improved performance is attributed to the establishment of locally H2-rich environments along the catalytic bed, which promote methane formation and mitigate CO accumulation without modifying the global operating conditions. These results highlight the potential of distributed reactant feeding as an effective reactor engineering approach for enhancing methanation performance and intensifying renewable natural gas production processes.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

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