University of Oulu

Omodara, L., Turpeinen, E. M., Pitkäaho, S., & Keiski, R. L. (2020). Substitution potential of rare earth catalysts in ethanol steam reforming. Sustainable Materials and Technologies, 26, e00237.

Substitution potential of rare earth catalysts in ethanol steam reforming

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Author: Omodara, Linda1; Turpeinen, Esa M.1; Pitkäaho, Satu1;
Organizations: 1University of Oulu, Faculty of Technology, Environmental and Chemical Engineering, P.O Box 4300, FI-90014, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 1.5 MB)
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Language: English
Published: Elsevier, 2020
Publish Date: 2022-11-25


This study suggests the possibility of substituting rare earths containing catalysts in ethanol steam reforming by means of sustainability assessment. Four Ni-catalysts are assessed; two of the Ni-catalysts are rare earths containing catalysts Ni/Al₂O₃-CeO₂and Ni/La₂O₃ while the other two are non-rare earths containing catalysts Ni/Al₂O₃ and Ni/ZnO. The sustainability assessment tool used covers environmental, health and safety and economic indicators in conjunction with a linear scale transformation (Max) normalization technique and an analytical hierarchy method to evaluate the sustainability performance of the catalysts. The sustainability assessment results obtained demonstrated that Ni/Al₂O₃ is the best performing catalysts in terms of the overall sustainability of the ethanol steam reforming reaction. The rare earths containing catalyst supports, i.e. cerium and lanthanum oxides can be successfully substituted with aluminum oxide catalyst support whilst still maintaining the overall sustainability performance of the reaction.

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Series: Sustainable materials and technologies
ISSN: 2214-9937
ISSN-E: 2214-9937
ISSN-L: 2214-9937
Volume: 26
Article number: e00237
DOI: 10.1016/j.susmat.2020.e00237
Type of Publication: A1 Journal article – refereed
Field of Science: 215 Chemical engineering
116 Chemical sciences
Funding: The authors wish to acknowledge the financial support from the University of Oulu Graduate School, UniOGS, K-H Renlund Foundation, University of Oulu Foundation, and Tauno Tönning Foundation.
Copyright information: © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (