Effect of noble metal addition over active Ru/TiO2 catalyst for CO selective methanation from H2 rich-streams

L. F. Bobadilla; A. Muñoz-Murillo; J. Gándara-Loe; A. Pérez; O. H. Laguna; L. M. Martínez T; A. Penkova; M. A. Centeno; J. A. Odriozola

doi:10.1016/j.ijhydene.2022.07.072

Effect of noble metal addition over active Ru/TiO₂ catalyst for CO selective methanation from H₂ rich-streams

L. F. Bobadilla, A. Muñoz-Murillo, J. Gándara-Loe, A. Pérez, O. H. Laguna, L. M. Martínez T, A. Penkova, M. A. Centeno, J. A. Odriozola

Universidad de Sevilla

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Selective CO methanation from H₂-rich stream has been regarded as a promising route for deep removal of low CO concentration and catalytic hydrogen purification processes. This work is focused on the development of more efficient catalysts applied in practical conditions. For this purpose, we prepared a series of catalysts based on Ru supported over titania and promoted with small amounts of Rh and Pt. Characterization details revealed that Rh and Pt modify the electronic properties of Ru. The results of catalytic activity showed that Pt has a negative effect since it promotes the reverse water gas shift reaction decreasing the selectivity of methanation but Rh increases remarkably the activity and selectivity of CO methanation. The obtained results suggest that RuRh-based catalyst could become important for the treatment of industrial-volume streams.

Original language	English
Pages (from-to)	25065-25074
Number of pages	10
Journal	International Journal of Hydrogen Energy
Volume	48
Issue number	64
DOIs	https://doi.org/10.1016/j.ijhydene.2022.07.072
State	Published - 29 Jul 2023
Externally published	Yes

Keywords

CO selective methanation
H purification
Noble metals addition
Ru-based catalyst

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.ijhydene.2022.07.072

Cite this

Bobadilla, L. F., Muñoz-Murillo, A., Gándara-Loe, J., Pérez, A., Laguna, O. H., Martínez T, L. M., Penkova, A., Centeno, M. A., & Odriozola, J. A. (2023). Effect of noble metal addition over active Ru/TiO₂ catalyst for CO selective methanation from H₂ rich-streams. International Journal of Hydrogen Energy, 48(64), 25065-25074. https://doi.org/10.1016/j.ijhydene.2022.07.072

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title = "Effect of noble metal addition over active Ru/TiO2 catalyst for CO selective methanation from H2 rich-streams",

abstract = "Selective CO methanation from H2-rich stream has been regarded as a promising route for deep removal of low CO concentration and catalytic hydrogen purification processes. This work is focused on the development of more efficient catalysts applied in practical conditions. For this purpose, we prepared a series of catalysts based on Ru supported over titania and promoted with small amounts of Rh and Pt. Characterization details revealed that Rh and Pt modify the electronic properties of Ru. The results of catalytic activity showed that Pt has a negative effect since it promotes the reverse water gas shift reaction decreasing the selectivity of methanation but Rh increases remarkably the activity and selectivity of CO methanation. The obtained results suggest that RuRh-based catalyst could become important for the treatment of industrial-volume streams.",

keywords = "CO selective methanation, H purification, Noble metals addition, Ru-based catalyst",

author = "Bobadilla, {L. F.} and A. Mu{\~n}oz-Murillo and J. G{\'a}ndara-Loe and A. P{\'e}rez and Laguna, {O. H.} and {Mart{\'i}nez T}, {L. M.} and A. Penkova and Centeno, {M. A.} and Odriozola, {J. A.}",

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Bobadilla, LF, Muñoz-Murillo, A, Gándara-Loe, J, Pérez, A, Laguna, OH, Martínez T, LM, Penkova, A, Centeno, MA & Odriozola, JA 2023, 'Effect of noble metal addition over active Ru/TiO₂ catalyst for CO selective methanation from H₂ rich-streams', International Journal of Hydrogen Energy, vol. 48, no. 64, pp. 25065-25074. https://doi.org/10.1016/j.ijhydene.2022.07.072

TY - JOUR

T1 - Effect of noble metal addition over active Ru/TiO2 catalyst for CO selective methanation from H2 rich-streams

AU - Bobadilla, L. F.

AU - Muñoz-Murillo, A.

AU - Gándara-Loe, J.

AU - Pérez, A.

AU - Laguna, O. H.

AU - Martínez T, L. M.

AU - Penkova, A.

AU - Centeno, M. A.

AU - Odriozola, J. A.

PY - 2023/7/29

Y1 - 2023/7/29

N2 - Selective CO methanation from H2-rich stream has been regarded as a promising route for deep removal of low CO concentration and catalytic hydrogen purification processes. This work is focused on the development of more efficient catalysts applied in practical conditions. For this purpose, we prepared a series of catalysts based on Ru supported over titania and promoted with small amounts of Rh and Pt. Characterization details revealed that Rh and Pt modify the electronic properties of Ru. The results of catalytic activity showed that Pt has a negative effect since it promotes the reverse water gas shift reaction decreasing the selectivity of methanation but Rh increases remarkably the activity and selectivity of CO methanation. The obtained results suggest that RuRh-based catalyst could become important for the treatment of industrial-volume streams.

AB - Selective CO methanation from H2-rich stream has been regarded as a promising route for deep removal of low CO concentration and catalytic hydrogen purification processes. This work is focused on the development of more efficient catalysts applied in practical conditions. For this purpose, we prepared a series of catalysts based on Ru supported over titania and promoted with small amounts of Rh and Pt. Characterization details revealed that Rh and Pt modify the electronic properties of Ru. The results of catalytic activity showed that Pt has a negative effect since it promotes the reverse water gas shift reaction decreasing the selectivity of methanation but Rh increases remarkably the activity and selectivity of CO methanation. The obtained results suggest that RuRh-based catalyst could become important for the treatment of industrial-volume streams.

KW - CO selective methanation

KW - H purification

KW - Noble metals addition

KW - Ru-based catalyst

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