DOI: 10.1016/j.jcou.2018.03.012
Scopus记录号: 2-s2.0-85043991403
论文题名: Multicomponent Ni-CeO2 nanocatalysts for syngas production from CO2/CH4 mixtures
作者: Le Saché E. ; Santos J.L. ; Smith T.J. ; Centeno M.A. ; Arellano-Garcia H. ; Odriozola J.A. ; Reina T.R.
刊名: Journal of CO2 Utilization
ISSN: 22129820
出版年: 2018
卷: 25 起始页码: 68
结束页码: 78
语种: 英语
英文关键词: Bimetallic catalysts
; Cerium oxide
; CO2 utilisation
; Ni catalysts
; Syngas production
Scopus关键词: Carbon dioxide
; Catalysts
; Cerium oxide
; Dispersions
; Mixtures
; Nickel
; Synthesis gas
; Tin
; Bimetallic catalysts
; CO2 utilisation
; Dry reforming-of-methane
; Improve performance
; Ni catalysts
; Ni-based catalyst
; Reaction conditions
; Syngas production
; Cerium compounds
英文摘要: The dry reforming of methane with CO2 is a common route to transform CO2/CH4 mixtures into added value syngas. Ni based catalysts are highly active for this goal but suffer from deactivation, as such promoters need to be introduced to counteract this, and improve performance. In this study, mono- and bi-metallic formulations based on 10 wt.% Ni/CeO2-Al2O3 are explored and compared to a reference 10 wt.% Ni/γ-Al2O3. The effect of Sn and Pt as promoters of Ni/CeO2-Al2O3 was also investigated. The formulation promoted with Sn looked especially promising, showing CO2 conversions stabilising at 65% after highs of 95%. Its increased performance is attributed to the additional dispersion Sn promotion causes. Changes in the reaction conditions (space velocity and temperature) cement this idea, with the Ni-Sn/CeAl material performing superiorly to the mono-metallic material, showing less deactivation. However, in the long run it is noted that the mono-metallic Ni/CeAl performs better. As such the application is key when deciding which catalyst to employ in the dry reforming process. © 2018 The Authors. Published by Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/111905
Appears in Collections: 气候减缓与适应
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作者单位: Department of Chemical and Process Engineering, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, United Kingdom; Departamento de Química Inorgánica, Instituto de Ciencias de Materiales de Sevilla, Centro Mixto US-CSIC, Avda. Américo Vespucio 49, Seville, 41092, Spain
Recommended Citation:
Le Saché E.,Santos J.L.,Smith T.J.,et al. Multicomponent Ni-CeO2 nanocatalysts for syngas production from CO2/CH4 mixtures[J]. Journal of CO2 Utilization,2018-01-01,25