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Catalytic methanation reaction over supported nickel-ruthenium oxide base for purification of simulated natural gas

The presence of carbon dioxide and water molecules as impurities in crude natural gas decreases the quality of natural gas. Recently, the catalytic treatment of this toxic and acidic gas has become a promising technique by converting CO2 to methane gas in the presence of H2S gas; thus, enhancing met...

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Main Authors: Wan Abu Bakar, Wan Azelee, Ali, Rusmidah, Toemen, S.
Format: Article
Language:English
Published: Sharif University of Technology 2012
Subjects:
QD Chemistry
Online Access:http://eprints.utm.my/id/eprint/32951/1/WAWAbuBakar2012_CatalyticMethanationReactionOverSupported.pdf
http://eprints.utm.my/id/eprint/32951/
https://www.sciencedirect.com/science/article/pii/S1026309812000259?via%3Dihub
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spelling my.utm.329512018-10-31T12:36:50Z http://eprints.utm.my/id/eprint/32951/ Catalytic methanation reaction over supported nickel-ruthenium oxide base for purification of simulated natural gas Wan Abu Bakar, Wan Azelee Ali, Rusmidah Toemen, S. QD Chemistry The presence of carbon dioxide and water molecules as impurities in crude natural gas decreases the quality of natural gas. Recently, the catalytic treatment of this toxic and acidic gas has become a promising technique by converting CO2 to methane gas in the presence of H2S gas; thus, enhancing methane production and creating an environmentally friendly approach to the purification of natural gas. A series of catalysts based on nickel oxide were prepared using the wetness impregnation technique and aging, followed by calcination at 400 °C. Pd/Ru/Ni(2:8:90)/ Al2O3 catalyst was revealed as the most potential catalyst, and achieved 43.60% of CO2 conversion, with 6.82% of methane formation at 200 °C. This catalyst had the highest percentage of 52.95% CO2 conversion and yielded 39.73% methane at a maximum temperature of 400 °C. In the presence of H2S in the gas stream, the conversion dropped to 35.03%, with 3.64% yield of methane at a reaction temperature of 400 °C. However, this catalyst achieved 100% H2S desulfurization at 140 °C and remained constant until the reaction temperature of 300 °C. Moreover, the XRD diffractogram showed that the catalyst is highly amorphous in structure, with a BET surface area in the range of 220–270 m2 g- 1. FESEM analysis indicated a rough surface morphology and non-homogeneous spherical shape, with the smallest particles size in the range 40–115 nm. Sharif University of Technology 2012-06 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/32951/1/WAWAbuBakar2012_CatalyticMethanationReactionOverSupported.pdf Wan Abu Bakar, Wan Azelee and Ali, Rusmidah and Toemen, S. (2012) Catalytic methanation reaction over supported nickel-ruthenium oxide base for purification of simulated natural gas. Scientia Iranica, 19 (3). pp. 525-534. ISSN 1026-3098 https://www.sciencedirect.com/science/article/pii/S1026309812000259?via%3Dihub DOI:10.1016/j.scient.2012.02.004
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/
language English
topic QD Chemistry
spellingShingle QD Chemistry
Wan Abu Bakar, Wan Azelee
Ali, Rusmidah
Toemen, S.
Catalytic methanation reaction over supported nickel-ruthenium oxide base for purification of simulated natural gas
description The presence of carbon dioxide and water molecules as impurities in crude natural gas decreases the quality of natural gas. Recently, the catalytic treatment of this toxic and acidic gas has become a promising technique by converting CO2 to methane gas in the presence of H2S gas; thus, enhancing methane production and creating an environmentally friendly approach to the purification of natural gas. A series of catalysts based on nickel oxide were prepared using the wetness impregnation technique and aging, followed by calcination at 400 °C. Pd/Ru/Ni(2:8:90)/ Al2O3 catalyst was revealed as the most potential catalyst, and achieved 43.60% of CO2 conversion, with 6.82% of methane formation at 200 °C. This catalyst had the highest percentage of 52.95% CO2 conversion and yielded 39.73% methane at a maximum temperature of 400 °C. In the presence of H2S in the gas stream, the conversion dropped to 35.03%, with 3.64% yield of methane at a reaction temperature of 400 °C. However, this catalyst achieved 100% H2S desulfurization at 140 °C and remained constant until the reaction temperature of 300 °C. Moreover, the XRD diffractogram showed that the catalyst is highly amorphous in structure, with a BET surface area in the range of 220–270 m2 g- 1. FESEM analysis indicated a rough surface morphology and non-homogeneous spherical shape, with the smallest particles size in the range 40–115 nm.
format Article
author Wan Abu Bakar, Wan Azelee
Ali, Rusmidah
Toemen, S.
author_facet Wan Abu Bakar, Wan Azelee
Ali, Rusmidah
Toemen, S.
author_sort Wan Abu Bakar, Wan Azelee
title Catalytic methanation reaction over supported nickel-ruthenium oxide base for purification of simulated natural gas
title_short Catalytic methanation reaction over supported nickel-ruthenium oxide base for purification of simulated natural gas
title_full Catalytic methanation reaction over supported nickel-ruthenium oxide base for purification of simulated natural gas
title_fullStr Catalytic methanation reaction over supported nickel-ruthenium oxide base for purification of simulated natural gas
title_full_unstemmed Catalytic methanation reaction over supported nickel-ruthenium oxide base for purification of simulated natural gas
title_sort catalytic methanation reaction over supported nickel-ruthenium oxide base for purification of simulated natural gas
publisher Sharif University of Technology
publishDate 2012
url http://eprints.utm.my/id/eprint/32951/1/WAWAbuBakar2012_CatalyticMethanationReactionOverSupported.pdf
http://eprints.utm.my/id/eprint/32951/
https://www.sciencedirect.com/science/article/pii/S1026309812000259?via%3Dihub
_version_ 1643649187762405376
score 13.211869

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