Greenhouse Gases Abatement by Catalytic Dry Reforming Of Methane to Syngas over Samarium Oxide-Supported cobalt Catalyst

Greenhouse Gases Abatement by Catalytic Dry Reforming Of Methane to Syngas over Samarium Oxide-Supported cobalt Catalyst

Anthropogenic activities often result in the emissions of methane (CH4) and carbon dioxide (CO2) which are the principal components of greenhouse gases. The mitigation of these gases to avert further occurrence of global warming has attracted a lot of research interest. In this study, the potential...

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Main Authors: Ayodele, Bamidele V., Khan, Maksudur R., Cheng, C. K.
Format: Article
Language:English
Published: Springer Berlin Heidelberg 2017
Subjects:
TP Chemical technology
Online Access:http://umpir.ump.edu.my/id/eprint/17733/
http://umpir.ump.edu.my/id/eprint/17733/
http://umpir.ump.edu.my/id/eprint/17733/
http://umpir.ump.edu.my/id/eprint/17733/1/IJEST-paper.pdf
id ump-17733
recordtype eprints
spelling ump-177332019-08-28T03:21:50Z http://umpir.ump.edu.my/id/eprint/17733/ Greenhouse Gases Abatement by Catalytic Dry Reforming Of Methane to Syngas over Samarium Oxide-Supported cobalt Catalyst Ayodele, Bamidele V. Khan, Maksudur R. Cheng, C. K. TP Chemical technology Anthropogenic activities often result in the emissions of methane (CH4) and carbon dioxide (CO2) which are the principal components of greenhouse gases. The mitigation of these gases to avert further occurrence of global warming has attracted a lot of research interest. In this study, the potential of greenhouse gases abatement via catalytic CO2 (dry) reforming of methane to syngas over samarium oxide-supported cobalt (20 wt% Co/80 wt% Sm2O3) catalyst was investigated. The 20 wt% Co/80 wt% Sm2O3 material was synthesized via wet impregnation method and characterized using different instrument techniques. The methane dry reforming reaction, as well as its kinetics over the catalyst, was studied in a stainless steel fixed-bed continuous flow reactor at feed (CH4:CO2) ratios range of 0.1–1.0, temperature range of 923–1023 K and gas hourly space velocity (GHSV) of 30,000 h−1. The 20 wt% Co/80 wt% Sm2O3 catalyst showed promising catalytic activity evident from the highest CH4 and CO2 conversion of ~71 and ~74% as well as the highest hydrogen (H2) and carbon monoxide (CO) yield of ~62 and ~73%, respectively. Moreover, the methane dry reforming over the 20 wt% Co/80 wt% Sm2O3 catalyst produces H2/CO ratio close to unity hence suitable for use as a chemical intermediate for synthesis of oxygenated fuels. The kinetic data obtained from the methane dry reforming were fitted to power law model. Apparent activation energies of 88.62, 80.12, 108.12 and 100.91 kJ mol−1 were obtained for CH4, CO2, H2 and CO, respectively. The characterization of the spent 20 wt% Co/80 wt% Sm2O3 catalyst after 4 h of time-on-stream has confirmed the presence of amorphous carbon which can easily be gasified. Springer Berlin Heidelberg 2017-05-15 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/17733/1/IJEST-paper.pdf Ayodele, Bamidele V. and Khan, Maksudur R. and Cheng, C. K. (2017) Greenhouse Gases Abatement by Catalytic Dry Reforming Of Methane to Syngas over Samarium Oxide-Supported cobalt Catalyst. International Journal of Environmental Science and Technology. pp. 1-14. ISSN 1735-1472(print); 1735-2630(online) https://doi.org/10.1007/s13762-017-1359-2 DOI 10.1007/s13762-017-1359-2
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Ayodele, Bamidele V.
Khan, Maksudur R.
Cheng, C. K.
Greenhouse Gases Abatement by Catalytic Dry Reforming Of Methane to Syngas over Samarium Oxide-Supported cobalt Catalyst
description Anthropogenic activities often result in the emissions of methane (CH4) and carbon dioxide (CO2) which are the principal components of greenhouse gases. The mitigation of these gases to avert further occurrence of global warming has attracted a lot of research interest. In this study, the potential of greenhouse gases abatement via catalytic CO2 (dry) reforming of methane to syngas over samarium oxide-supported cobalt (20 wt% Co/80 wt% Sm2O3) catalyst was investigated. The 20 wt% Co/80 wt% Sm2O3 material was synthesized via wet impregnation method and characterized using different instrument techniques. The methane dry reforming reaction, as well as its kinetics over the catalyst, was studied in a stainless steel fixed-bed continuous flow reactor at feed (CH4:CO2) ratios range of 0.1–1.0, temperature range of 923–1023 K and gas hourly space velocity (GHSV) of 30,000 h−1. The 20 wt% Co/80 wt% Sm2O3 catalyst showed promising catalytic activity evident from the highest CH4 and CO2 conversion of ~71 and ~74% as well as the highest hydrogen (H2) and carbon monoxide (CO) yield of ~62 and ~73%, respectively. Moreover, the methane dry reforming over the 20 wt% Co/80 wt% Sm2O3 catalyst produces H2/CO ratio close to unity hence suitable for use as a chemical intermediate for synthesis of oxygenated fuels. The kinetic data obtained from the methane dry reforming were fitted to power law model. Apparent activation energies of 88.62, 80.12, 108.12 and 100.91 kJ mol−1 were obtained for CH4, CO2, H2 and CO, respectively. The characterization of the spent 20 wt% Co/80 wt% Sm2O3 catalyst after 4 h of time-on-stream has confirmed the presence of amorphous carbon which can easily be gasified.
format Article
author Ayodele, Bamidele V.
Khan, Maksudur R.
Cheng, C. K.
author_facet Ayodele, Bamidele V.
Khan, Maksudur R.
Cheng, C. K.
author_sort Ayodele, Bamidele V.
title Greenhouse Gases Abatement by Catalytic Dry Reforming Of Methane to Syngas over Samarium Oxide-Supported cobalt Catalyst
title_short Greenhouse Gases Abatement by Catalytic Dry Reforming Of Methane to Syngas over Samarium Oxide-Supported cobalt Catalyst
title_full Greenhouse Gases Abatement by Catalytic Dry Reforming Of Methane to Syngas over Samarium Oxide-Supported cobalt Catalyst
title_fullStr Greenhouse Gases Abatement by Catalytic Dry Reforming Of Methane to Syngas over Samarium Oxide-Supported cobalt Catalyst
title_full_unstemmed Greenhouse Gases Abatement by Catalytic Dry Reforming Of Methane to Syngas over Samarium Oxide-Supported cobalt Catalyst
title_sort greenhouse gases abatement by catalytic dry reforming of methane to syngas over samarium oxide-supported cobalt catalyst
publisher Springer Berlin Heidelberg
publishDate 2017
url http://umpir.ump.edu.my/id/eprint/17733/
http://umpir.ump.edu.my/id/eprint/17733/
http://umpir.ump.edu.my/id/eprint/17733/
http://umpir.ump.edu.my/id/eprint/17733/1/IJEST-paper.pdf
first_indexed 2023-09-18T22:24:40Z
last_indexed 2023-09-18T22:24:40Z
_version_ 1777415886258307072

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