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CO2/H2 methanation technology of strontia based catalyst: physicochemical and optimisation studies by Box–Behnken design

Catalytic methanation is a fascinating method in converting the carbon dioxide gas from power plant flue gases into the valuable product of methane gas. It can be of great benefit to the environment and the national economy since the production of methane gas can be used as a fuel to run the turbine...

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Main Authors: Toemen, S., Wan Abu Bakar, W. A., Ali, R.
Format: Article
Published: Elsevier Ltd. 2017
Subjects:
Q Science (General)
Online Access:http://eprints.utm.my/id/eprint/80484/
http://dx.doi.org/10.1016/j.jclepro.2016.05.151
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spelling my.utm.804842021-02-23T02:56:12Z http://eprints.utm.my/id/eprint/80484/ CO2/H2 methanation technology of strontia based catalyst: physicochemical and optimisation studies by Box–Behnken design Toemen, S. Wan Abu Bakar, W. A. Ali, R. Q Science (General) Catalytic methanation is a fascinating method in converting the carbon dioxide gas from power plant flue gases into the valuable product of methane gas. It can be of great benefit to the environment and the national economy since the production of methane gas can be used as a fuel to run the turbine for electricity generation in power plant system or to run automobile vehicles. As such, catalytic methanation technology is able to reduce the emission of this greenhouse gas to atmosphere. Strontia based catalyst impregnated with Ru/Mn/Al2O3 was developed in this study. The optimum conditions over 10 g of Ru/Mn/Sr/Al2O3 catalyst were achieved with 65 wt% of based loading and calcined at 1000 °C for 5 h which gave 73.10% carbon dioxide conversion with 43.58% of methane at reaction temperature of 210 °C. The value was closely agreed with the predicted result obtained by Response Surface Methodology (RSM) which achieved 72.41% conversion. The higher carbon dioxide conversion was due to the higher reducibility and basicity of the catalyst surface as well as the higher surface area of 83.27 m2/g. The polycrystalline structure obtained from X-Ray Diffraction analysis showed a mixture of smaller (rod shape < 12 nm) and bigger (square sheet shape ∼130 nm) crystallite particles of alumina (Al2O3), strontia (SrO2), tetrastrontium diruthenate (Sr4(Ru2O9)), manganese (II,III) oxide (Mn3O4) and ruthenium oxide (RuO2). The active sites responsible for the higher carbon dioxide activity were SrO2 and RuO2. Elsevier Ltd. 2017 Article PeerReviewed Toemen, S. and Wan Abu Bakar, W. A. and Ali, R. (2017) CO2/H2 methanation technology of strontia based catalyst: physicochemical and optimisation studies by Box–Behnken design. Journal of Cleaner Production, 146 . pp. 71-82. ISSN 0959-6526 http://dx.doi.org/10.1016/j.jclepro.2016.05.151 DOI: 10.1016/j.jclepro.2016.05.151
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic Q Science (General)
spellingShingle Q Science (General)
Toemen, S.
Wan Abu Bakar, W. A.
Ali, R.
CO2/H2 methanation technology of strontia based catalyst: physicochemical and optimisation studies by Box–Behnken design
description Catalytic methanation is a fascinating method in converting the carbon dioxide gas from power plant flue gases into the valuable product of methane gas. It can be of great benefit to the environment and the national economy since the production of methane gas can be used as a fuel to run the turbine for electricity generation in power plant system or to run automobile vehicles. As such, catalytic methanation technology is able to reduce the emission of this greenhouse gas to atmosphere. Strontia based catalyst impregnated with Ru/Mn/Al2O3 was developed in this study. The optimum conditions over 10 g of Ru/Mn/Sr/Al2O3 catalyst were achieved with 65 wt% of based loading and calcined at 1000 °C for 5 h which gave 73.10% carbon dioxide conversion with 43.58% of methane at reaction temperature of 210 °C. The value was closely agreed with the predicted result obtained by Response Surface Methodology (RSM) which achieved 72.41% conversion. The higher carbon dioxide conversion was due to the higher reducibility and basicity of the catalyst surface as well as the higher surface area of 83.27 m2/g. The polycrystalline structure obtained from X-Ray Diffraction analysis showed a mixture of smaller (rod shape < 12 nm) and bigger (square sheet shape ∼130 nm) crystallite particles of alumina (Al2O3), strontia (SrO2), tetrastrontium diruthenate (Sr4(Ru2O9)), manganese (II,III) oxide (Mn3O4) and ruthenium oxide (RuO2). The active sites responsible for the higher carbon dioxide activity were SrO2 and RuO2.
format Article
author Toemen, S.
Wan Abu Bakar, W. A.
Ali, R.
author_facet Toemen, S.
Wan Abu Bakar, W. A.
Ali, R.
author_sort Toemen, S.
title CO2/H2 methanation technology of strontia based catalyst: physicochemical and optimisation studies by Box–Behnken design
title_short CO2/H2 methanation technology of strontia based catalyst: physicochemical and optimisation studies by Box–Behnken design
title_full CO2/H2 methanation technology of strontia based catalyst: physicochemical and optimisation studies by Box–Behnken design
title_fullStr CO2/H2 methanation technology of strontia based catalyst: physicochemical and optimisation studies by Box–Behnken design
title_full_unstemmed CO2/H2 methanation technology of strontia based catalyst: physicochemical and optimisation studies by Box–Behnken design
title_sort co2/h2 methanation technology of strontia based catalyst: physicochemical and optimisation studies by box–behnken design
publisher Elsevier Ltd.
publishDate 2017
url http://eprints.utm.my/id/eprint/80484/
http://dx.doi.org/10.1016/j.jclepro.2016.05.151
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score 13.211869

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