Syngas Production from Glycerol-dry(CO2) Reforming Over La-promoted Ni/Al2O3 Catalyst

A 3 wt% La-promoted Ni/Al2O3 catalyst was prepared via wet co-impregnation technique and physicochemically-characterized. Lanthanum was responsible for better metal dispersion; hence higher BET specific surface area (96.0 m2 g−1) as compared to the unpromoted Ni/Al2O3 catalyst (85.0 m2 g−1). In addi...

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Main Authors:	Kah, Weng Siew, Hua, Chyn Lee, Jolius, Gimbun, Chin, S. Y., Khan, Maksudur R., Yun Hin, Taufiq-Yap, Cheng, C. K.
Format:	Article
Language:	English
Published:	Elsevier Ltd 2015
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/6677/ http://umpir.ump.edu.my/id/eprint/6677/ http://umpir.ump.edu.my/id/eprint/6677/ http://umpir.ump.edu.my/id/eprint/6677/1/Syngas%20Production%20From%20Glycerol-Dry%28CO2%29%20Reforming%20Over%20La-Promoted%20Ni-Al2O3%20Catalyst.pdf

id	ump-6677
recordtype	eprints
spelling	ump-66772017-12-14T02:38:58Z http://umpir.ump.edu.my/id/eprint/6677/ Syngas Production from Glycerol-dry(CO2) Reforming Over La-promoted Ni/Al2O3 Catalyst Kah, Weng Siew Hua, Chyn Lee Jolius, Gimbun Chin, S. Y. Khan, Maksudur R. Yun Hin, Taufiq-Yap Cheng, C. K. TJ Mechanical engineering and machinery A 3 wt% La-promoted Ni/Al2O3 catalyst was prepared via wet co-impregnation technique and physicochemically-characterized. Lanthanum was responsible for better metal dispersion; hence higher BET specific surface area (96.0 m2 g−1) as compared to the unpromoted Ni/Al2O3 catalyst (85.0 m2 g−1). In addition, the La-promoted catalyst possessed finer crystallite size (9.1 nm) whilst the unpromoted catalyst measured 12.8 nm. Subsequently, glycerol dry reforming was performed at atmospheric pressure and temperatures ranging from 923 to 1123 K employing CO2-to-glycerol ratio from zero to five. Significantly, the reaction results have yielded syngas as main gaseous products with H2:CO ratios always below than 2.0 with concomitant maximum 96% glycerol conversion obtained at the CO2-to-glycerol ratio of 1.67. In addition, the glycerol consumption rate can be adequately captured using power law modelling with the order of reactions equal 0.72 and 0.14 with respect to glycerol and CO2 whilst the activation energy was 35.0 kJ mol−1. A 72 h longevity run moreover revealed that the catalyst gave a stable catalytic performance. Elsevier Ltd 2015 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/6677/1/Syngas%20Production%20From%20Glycerol-Dry%28CO2%29%20Reforming%20Over%20La-Promoted%20Ni-Al2O3%20Catalyst.pdf Kah, Weng Siew and Hua, Chyn Lee and Jolius, Gimbun and Chin, S. Y. and Khan, Maksudur R. and Yun Hin, Taufiq-Yap and Cheng, C. K. (2015) Syngas Production from Glycerol-dry(CO2) Reforming Over La-promoted Ni/Al2O3 Catalyst. Renewable Energy, 74 (Feb.). pp. 441-447. ISSN 0960-1481 http://dx.doi.org/10.1016/j.renene.2014.08.048 DOI: 10.1016/j.renene.2014.08.048
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Kah, Weng Siew Hua, Chyn Lee Jolius, Gimbun Chin, S. Y. Khan, Maksudur R. Yun Hin, Taufiq-Yap Cheng, C. K. Syngas Production from Glycerol-dry(CO2) Reforming Over La-promoted Ni/Al2O3 Catalyst
description	A 3 wt% La-promoted Ni/Al2O3 catalyst was prepared via wet co-impregnation technique and physicochemically-characterized. Lanthanum was responsible for better metal dispersion; hence higher BET specific surface area (96.0 m2 g−1) as compared to the unpromoted Ni/Al2O3 catalyst (85.0 m2 g−1). In addition, the La-promoted catalyst possessed finer crystallite size (9.1 nm) whilst the unpromoted catalyst measured 12.8 nm. Subsequently, glycerol dry reforming was performed at atmospheric pressure and temperatures ranging from 923 to 1123 K employing CO2-to-glycerol ratio from zero to five. Significantly, the reaction results have yielded syngas as main gaseous products with H2:CO ratios always below than 2.0 with concomitant maximum 96% glycerol conversion obtained at the CO2-to-glycerol ratio of 1.67. In addition, the glycerol consumption rate can be adequately captured using power law modelling with the order of reactions equal 0.72 and 0.14 with respect to glycerol and CO2 whilst the activation energy was 35.0 kJ mol−1. A 72 h longevity run moreover revealed that the catalyst gave a stable catalytic performance.
format	Article
author	Kah, Weng Siew Hua, Chyn Lee Jolius, Gimbun Chin, S. Y. Khan, Maksudur R. Yun Hin, Taufiq-Yap Cheng, C. K.
author_facet	Kah, Weng Siew Hua, Chyn Lee Jolius, Gimbun Chin, S. Y. Khan, Maksudur R. Yun Hin, Taufiq-Yap Cheng, C. K.
author_sort	Kah, Weng Siew
title	Syngas Production from Glycerol-dry(CO2) Reforming Over La-promoted Ni/Al2O3 Catalyst
title_short	Syngas Production from Glycerol-dry(CO2) Reforming Over La-promoted Ni/Al2O3 Catalyst
title_full	Syngas Production from Glycerol-dry(CO2) Reforming Over La-promoted Ni/Al2O3 Catalyst
title_fullStr	Syngas Production from Glycerol-dry(CO2) Reforming Over La-promoted Ni/Al2O3 Catalyst
title_full_unstemmed	Syngas Production from Glycerol-dry(CO2) Reforming Over La-promoted Ni/Al2O3 Catalyst
title_sort	syngas production from glycerol-dry(co2) reforming over la-promoted ni/al2o3 catalyst
publisher	Elsevier Ltd
publishDate	2015
url	http://umpir.ump.edu.my/id/eprint/6677/ http://umpir.ump.edu.my/id/eprint/6677/ http://umpir.ump.edu.my/id/eprint/6677/ http://umpir.ump.edu.my/id/eprint/6677/1/Syngas%20Production%20From%20Glycerol-Dry%28CO2%29%20Reforming%20Over%20La-Promoted%20Ni-Al2O3%20Catalyst.pdf
first_indexed	2023-09-18T22:02:40Z
last_indexed	2023-09-18T22:02:40Z
_version_	1777414502385451008

Syngas Production from Glycerol-dry(CO2) Reforming Over La-promoted Ni/Al2O3 Catalyst

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