Comparative study of the dry reforming of methane on fluidised aerogel and xerogel Ni/Al2O3 catalysts
Comparative study of the dry reforming of methane on fluidised aerogel and xerogel Ni/Al2O3 catalysts
The xerogel and aerogel Ni(20 wt %)/Al2O3 catalysts were prepared through incipient-wetness-impregnation and co-precipitation-supercritical drying (CP-SCD), respectively. All the fresh and used catalysts were well characterised using FESEM, BET, XRD, H2-TPR and H2-TPD techniques. Their properties and catalytic performance in dry reforming of CH4 in a fluidised bed reactor were comparatively investigated. In comparison with the xerogel catalyst, the aerogel catalyst possessed smaller crystallite size of nickel, larger specific surface area, higher nickel dispersion, lower bulky density and better fluidization quality. More importantly, the aerosol catalyst showed higher catalytic activity, stability and less carbon deposition in dry reforming, due to the excellent physicochemical properties of the aerogel catalyst and its enhanced fluidization quality.
91-99
Jiang, Zheng
bcf19e78-f5c3-48e6-802b-fe77bd12deab
Liao, Xin
b17c128f-a408-4d4a-82fd-fb902d1acb74
Zhao, Yongxiang
ad91486b-c15f-4cd0-a380-0ba4f8c8d546
Jiang, Zheng
bcf19e78-f5c3-48e6-802b-fe77bd12deab
Liao, Xin
b17c128f-a408-4d4a-82fd-fb902d1acb74
Zhao, Yongxiang
ad91486b-c15f-4cd0-a380-0ba4f8c8d546
Jiang, Zheng, Liao, Xin and Zhao, Yongxiang
(2013)
Comparative study of the dry reforming of methane on fluidised aerogel and xerogel Ni/Al2O3 catalysts.
Applied Petrochemical Research, 3 (3-4), .
(doi:10.1007/s13203-013-0035-9).
Abstract
The xerogel and aerogel Ni(20 wt %)/Al2O3 catalysts were prepared through incipient-wetness-impregnation and co-precipitation-supercritical drying (CP-SCD), respectively. All the fresh and used catalysts were well characterised using FESEM, BET, XRD, H2-TPR and H2-TPD techniques. Their properties and catalytic performance in dry reforming of CH4 in a fluidised bed reactor were comparatively investigated. In comparison with the xerogel catalyst, the aerogel catalyst possessed smaller crystallite size of nickel, larger specific surface area, higher nickel dispersion, lower bulky density and better fluidization quality. More importantly, the aerosol catalyst showed higher catalytic activity, stability and less carbon deposition in dry reforming, due to the excellent physicochemical properties of the aerogel catalyst and its enhanced fluidization quality.
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Comparative study of the dry reforming of methane on fluidised aerogel and xerogel NiAl2O3 catalysts .pdf
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e-pub ahead of print date: 16 October 2013
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This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.
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Faculty of Engineering and the Environment
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Local EPrints ID: 359152
URI: http://eprints.soton.ac.uk/id/eprint/359152
ISSN: 2190-5525
PURE UUID: 5f5d157e-31c1-4d75-94c9-53cf7f04def1
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Date deposited: 23 Oct 2013 10:30
Last modified: 15 Mar 2024 03:47
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Author:
Xin Liao
Author:
Yongxiang Zhao
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