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Title: Development of improved nickel catalysts for sorption enhanced CO2 methanation
Authors : Delmelle, Renaud
Duarte, Renata Bessa
Franken, Tanja
Burnat, Dariusz Artur
Holzer, Lorenz
Borgschulte, Andreas
Heel, Andre
Published in : International Journal of Hydrogen Energy
Volume(Issue) : 41
Issue : 44
Pages : 20185
Pages to: 20191
Publisher / Ed. Institution : Elsevier Ltd
Issue Date: 2016
License (according to publishing contract) : Licence according to publishing contract
Type of review: Peer review (Publication)
Language : English
Subjects : Sorption enhanced; CO2 methanation; Map; Power to gas
Subject (DDC) : 540: Chemistry
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.
Departement: School of Engineering
Organisational Unit: Institute of Computational Physics (ICP)
Institute of Materials and Process Engineering (IMPE)
Publication type: Article in scientific Journal
DOI : 10.1016/j.ijhydene.2016.09.045
ISSN: 0360-3199
Appears in Collections:Publikationen School of Engineering

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