CO2 Reforming of Glycerol over La-Ni/Al2O3 Catalyst: A Longevity Evaluative Study

This paper reports on the longevity of glycerol-dry (CO2) reforming over the lanthanum (La) promoted Ni/Al2O3 catalysts. The XRD results showed that the Ni particle was well-dispersed in the presence of La promoter. In addition, via the NH3-TPD analysis, it was found that the La promoter has reduced...

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Main Authors: Kah, Weng Siew, Hua, Chyn Lee, Khan, Maksudur R., Jolius, Gimbun, Cheng, C. K.
Format: Article
Language:English
Published: Elsevier 2015
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/9265/
http://umpir.ump.edu.my/id/eprint/9265/1/fist-2015-mashitah-CO2%20Reforming.pdf
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author Kah, Weng Siew
Hua, Chyn Lee
Khan, Maksudur R.
Jolius, Gimbun
Cheng, C. K.
author_facet Kah, Weng Siew
Hua, Chyn Lee
Khan, Maksudur R.
Jolius, Gimbun
Cheng, C. K.
author_sort Kah, Weng Siew
building UMP Institutional Repository
collection Online Access
description This paper reports on the longevity of glycerol-dry (CO2) reforming over the lanthanum (La) promoted Ni/Al2O3 catalysts. The XRD results showed that the Ni particle was well-dispersed in the presence of La promoter. In addition, via the NH3-TPD analysis, it was found that the La promoter has reduced the acidity of Ni catalyst which may have explained the mitigation of carbon laydown. It was determined that the 3.0 wt% La-promoted Ni/Al2O3 catalyst possessed the largest BET specific surface area of 97 m2·g−1. Consequently, it yielded the best catalytic longevity performance with conversion attained more than 90%, even after 72 h of reaction duration. Significantly, it can be confirmed that the presence of CO2 during the glycerol dry reforming was essential in reducing carbon deposition, most likely via gasification pathway. This has ensured a stability of catalytic activity for a long reaction period (72 h).
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publishDate 2015
publisher Elsevier
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spelling ump-92652018-01-11T02:50:55Z http://umpir.ump.edu.my/id/eprint/9265/ CO2 Reforming of Glycerol over La-Ni/Al2O3 Catalyst: A Longevity Evaluative Study Kah, Weng Siew Hua, Chyn Lee Khan, Maksudur R. Jolius, Gimbun Cheng, C. K. TP Chemical technology This paper reports on the longevity of glycerol-dry (CO2) reforming over the lanthanum (La) promoted Ni/Al2O3 catalysts. The XRD results showed that the Ni particle was well-dispersed in the presence of La promoter. In addition, via the NH3-TPD analysis, it was found that the La promoter has reduced the acidity of Ni catalyst which may have explained the mitigation of carbon laydown. It was determined that the 3.0 wt% La-promoted Ni/Al2O3 catalyst possessed the largest BET specific surface area of 97 m2·g−1. Consequently, it yielded the best catalytic longevity performance with conversion attained more than 90%, even after 72 h of reaction duration. Significantly, it can be confirmed that the presence of CO2 during the glycerol dry reforming was essential in reducing carbon deposition, most likely via gasification pathway. This has ensured a stability of catalytic activity for a long reaction period (72 h). Elsevier 2015 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/9265/1/fist-2015-mashitah-CO2%20Reforming.pdf Kah, Weng Siew and Hua, Chyn Lee and Khan, Maksudur R. and Jolius, Gimbun and Cheng, C. K. (2015) CO2 Reforming of Glycerol over La-Ni/Al2O3 Catalyst: A Longevity Evaluative Study. Journal of Energy Chemistry, 24 (3). pp. 366-373. ISSN 2095-4956. (Published) http://dx.doi.org/10.1016/S2095-4956(15)60324-2 DOI: 10.1016/S2095-4956(15)60324-2
spellingShingle TP Chemical technology
Kah, Weng Siew
Hua, Chyn Lee
Khan, Maksudur R.
Jolius, Gimbun
Cheng, C. K.
CO2 Reforming of Glycerol over La-Ni/Al2O3 Catalyst: A Longevity Evaluative Study
title CO2 Reforming of Glycerol over La-Ni/Al2O3 Catalyst: A Longevity Evaluative Study
title_full CO2 Reforming of Glycerol over La-Ni/Al2O3 Catalyst: A Longevity Evaluative Study
title_fullStr CO2 Reforming of Glycerol over La-Ni/Al2O3 Catalyst: A Longevity Evaluative Study
title_full_unstemmed CO2 Reforming of Glycerol over La-Ni/Al2O3 Catalyst: A Longevity Evaluative Study
title_short CO2 Reforming of Glycerol over La-Ni/Al2O3 Catalyst: A Longevity Evaluative Study
title_sort co2 reforming of glycerol over la-ni/al2o3 catalyst: a longevity evaluative study
topic TP Chemical technology
url http://umpir.ump.edu.my/id/eprint/9265/
http://umpir.ump.edu.my/id/eprint/9265/
http://umpir.ump.edu.my/id/eprint/9265/
http://umpir.ump.edu.my/id/eprint/9265/1/fist-2015-mashitah-CO2%20Reforming.pdf