Kinetic Study of Dry Reforming of Methane Over Ni–Ce/Al 2 O 3 Catalyst with Deactivation

Zambrano, D. ; Soler, J. (Universidad de Zaragoza) ; Herguido, J. (Universidad de Zaragoza) ; Menéndez, M. (Universidad de Zaragoza)

Resumen: A kinetic study for dry reforming of methane over Ni–Ce/Al 2 O 3 catalyst was performed, taking into account both the main reactions and the catalyst deactivation. The catalyst was prepared by a sequential wet impregnation process, with loadings of 5 wt.% Ni and 10 wt.% Ce. Experimental tests were carried out in a fixed bed reactor between 475 and 550 °C and several spatial times, using nitrogen as diluent. Several kinetic equations were compared. The best fit of experimental data was achieved using a Langmuir–Hinshelwood mechanism which takes into account the presence of two active sites. Pre-exponential factor and activation energy were calculated. the kinetics of deactivation was also determined. The relationship between catalyst activity and coke concentration was also studied. Several deactivation equations were considered in order to choose the best fit with experimental data.

Idioma: Inglés

DOI: 10.1007/s11244-019-01157-2

Año: 2019

Publicado en: TOPICS IN CATALYSIS 62, 5-6 (2019), 456-466
ISSN: 1022-5528

Factor impacto JCR: 2.406 (2019)

Categ. JCR: CHEMISTRY, APPLIED rank: 26 / 70 = 0.371 (2019) - Q2 - T2
Categ. JCR: CHEMISTRY, PHYSICAL rank: 95 / 159 = 0.597 (2019) - Q3 - T2

Factor impacto SCIMAGO: 0.727 - Chemistry (miscellaneous) (Q1) - Catalysis (Q2)

Financiación: info:eu-repo/grantAgreement/ES/MINECO/ENE2013-44350-R

Tipo y forma: Article (PostPrint)

Área (Departamento): Área Ingeniería Química (Dpto. Ing.Quím.Tecnol.Med.Amb.)