Development of improved nickel catalysts for sorption enhanced CO2 methanation
(2016) International Journal of Hydrogen Energy — Vol. 41, n° 44, p. 20185-20191 (2016)
Files
Delmelle_IJHE2016.pdf
Open Access - Adobe PDF
- 1.08 MB
Details
- Authors
- Abstract
- Sorption enhanced CO2 methanation is a complex process in which the key challenge lies in the combined optimization of the catalyst activity and water adsorption properties of the zeolite support. In the present work, improved nickel-based catalysts with an enhanced water uptake capacity were designed and catalytically investigated. Two different zeolite frameworks were considered as supports for nanostructured Ni, and studied with defined operation parameters. 5Ni/13X shows significantly increased, nearly three-fold higher, operation time in the sorption enhanced CO2 methanation mode compared to the reference 5Ni/5A, likely due to its higher water sorption capacity. Both catalysts yield comparable CO2 conversion in conventional CO2 methanation (without water uptake). Regeneration of the catalysts performance is possible via a drying step between methanation cycles under both reducing and oxidizing atmospheres; however, operation time of 5Ni/13X increases further after drying under air.
- Affiliations
Zürcher Hochschule für Angewandte Wissenschaften Institute of Materials and Process Engineering Zürcher Hochschule für Angewandte Wissenschaften Institute of Computational Physics Swiss Federal Laboratories for Materials Science and Technology Laboratory for Advanced Analytical Technologies
Citations
Delmelle, R., Duarte, R. B., Franken, T., Burnat, D., Holzer, L., Borgschulte, A., & Heel, A. (2016). Development of improved nickel catalysts for sorption enhanced CO2 methanation. International Journal of Hydrogen Energy, 41(44), 20185-20191. https://doi.org/10.1016/j.ijhydene.2016.09.045 (Original work published 2016)