Syngas Production from Methane Dry Reforming Over Ni/Al2O3 Catalyst

We evaluated dry reforming of methane in a tubular fixed-bed reactor at various reaction temperatures from 923 to 973 K using different reactant compositions over 10 % Ni/Al2O3 catalyst prepared by a wet impregnation method. Both NiO and NiAl2O4 phases were formed on the catalyst surface during calc...

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Main Authors:	Vo, Dai-Viet N., Selvarajah, Kavineshshen, Nguyen, Huu Huy Phuc, Abdullah, Bawadi, Alenazey, Feraih
Format:	Article
Language:	English
Published:	Springer 2016
Subjects:	QD Chemistry TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/11970/ http://umpir.ump.edu.my/id/eprint/11970/ http://umpir.ump.edu.my/id/eprint/11970/ http://umpir.ump.edu.my/id/eprint/11970/1/Syngas%20Production%20From%20Methane%20Dry%20Reforming%20Over%20Ni-Al2O3%20Catalyst.pdf

id	ump-11970
recordtype	eprints
spelling	ump-119702017-12-15T07:37:40Z http://umpir.ump.edu.my/id/eprint/11970/ Syngas Production from Methane Dry Reforming Over Ni/Al2O3 Catalyst Vo, Dai-Viet N. Selvarajah, Kavineshshen Nguyen, Huu Huy Phuc Abdullah, Bawadi Alenazey, Feraih QD Chemistry TP Chemical technology We evaluated dry reforming of methane in a tubular fixed-bed reactor at various reaction temperatures from 923 to 973 K using different reactant compositions over 10 % Ni/Al2O3 catalyst prepared by a wet impregnation method. Both NiO and NiAl2O4 phases were formed on the catalyst surface during calcination, and the 10 % Ni/Al2O3 catalyst possessed high surface area of 106.36 m2 g-1 with fine metal dispersion. The low activation energy observed for formation of NiAl2O4 phase during calcination indicated strong interaction between the NiO form and the c-Al2O3 support. The NiO phase was completely reduced to metallic Ni0 form via H2 reduction. The conversions of CO2 and CH4 increased noticeably with increasing CO2 partial pressure, and the H2/CO ratio was always below unity, regardless of reaction conditions. The yield of H2 was enhanced with growing CO2 partial pressure, approaching a highest value of about 70 %. The heterogeneous nature of the deposited carbon was evident from the coexistence of carbon nanofibers and graphitic carbon. In addition, the amount of filamentous carbon appeared to be slightly less than that of graphitic carbon. However, these deposited carbons were completely removed by O2 at below 900 K during temperature-programmed oxidation. Springer 2016-01-09 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/11970/1/Syngas%20Production%20From%20Methane%20Dry%20Reforming%20Over%20Ni-Al2O3%20Catalyst.pdf Vo, Dai-Viet N. and Selvarajah, Kavineshshen and Nguyen, Huu Huy Phuc and Abdullah, Bawadi and Alenazey, Feraih (2016) Syngas Production from Methane Dry Reforming Over Ni/Al2O3 Catalyst. Research on Chemical Intermediates, 42 (1). pp. 269-288. ISSN 0922-6168 (Print); 1568-5675 (Online) http://dx.doi.org/10.1007/s11164-015-2395-5 DOI: 10.1007/s11164-015-2395-5
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	QD Chemistry TP Chemical technology
spellingShingle	QD Chemistry TP Chemical technology Vo, Dai-Viet N. Selvarajah, Kavineshshen Nguyen, Huu Huy Phuc Abdullah, Bawadi Alenazey, Feraih Syngas Production from Methane Dry Reforming Over Ni/Al2O3 Catalyst
description	We evaluated dry reforming of methane in a tubular fixed-bed reactor at various reaction temperatures from 923 to 973 K using different reactant compositions over 10 % Ni/Al2O3 catalyst prepared by a wet impregnation method. Both NiO and NiAl2O4 phases were formed on the catalyst surface during calcination, and the 10 % Ni/Al2O3 catalyst possessed high surface area of 106.36 m2 g-1 with fine metal dispersion. The low activation energy observed for formation of NiAl2O4 phase during calcination indicated strong interaction between the NiO form and the c-Al2O3 support. The NiO phase was completely reduced to metallic Ni0 form via H2 reduction. The conversions of CO2 and CH4 increased noticeably with increasing CO2 partial pressure, and the H2/CO ratio was always below unity, regardless of reaction conditions. The yield of H2 was enhanced with growing CO2 partial pressure, approaching a highest value of about 70 %. The heterogeneous nature of the deposited carbon was evident from the coexistence of carbon nanofibers and graphitic carbon. In addition, the amount of filamentous carbon appeared to be slightly less than that of graphitic carbon. However, these deposited carbons were completely removed by O2 at below 900 K during temperature-programmed oxidation.
format	Article
author	Vo, Dai-Viet N. Selvarajah, Kavineshshen Nguyen, Huu Huy Phuc Abdullah, Bawadi Alenazey, Feraih
author_facet	Vo, Dai-Viet N. Selvarajah, Kavineshshen Nguyen, Huu Huy Phuc Abdullah, Bawadi Alenazey, Feraih
author_sort	Vo, Dai-Viet N.
title	Syngas Production from Methane Dry Reforming Over Ni/Al2O3 Catalyst
title_short	Syngas Production from Methane Dry Reforming Over Ni/Al2O3 Catalyst
title_full	Syngas Production from Methane Dry Reforming Over Ni/Al2O3 Catalyst
title_fullStr	Syngas Production from Methane Dry Reforming Over Ni/Al2O3 Catalyst
title_full_unstemmed	Syngas Production from Methane Dry Reforming Over Ni/Al2O3 Catalyst
title_sort	syngas production from methane dry reforming over ni/al2o3 catalyst
publisher	Springer
publishDate	2016
url	http://umpir.ump.edu.my/id/eprint/11970/ http://umpir.ump.edu.my/id/eprint/11970/ http://umpir.ump.edu.my/id/eprint/11970/ http://umpir.ump.edu.my/id/eprint/11970/1/Syngas%20Production%20From%20Methane%20Dry%20Reforming%20Over%20Ni-Al2O3%20Catalyst.pdf
first_indexed	2023-09-18T22:13:05Z
last_indexed	2023-09-18T22:13:05Z
_version_	1777415158067363840

Syngas Production from Methane Dry Reforming Over Ni/Al2O3 Catalyst

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