Hydrogen Production via Glycerol Dry Reforming over La-Ni/Al2O3 Catalyst

Kah Weng Siew; Hua Chyn Lee; Jolius Gimbun; Chin Kui Cheng

doi:10.9767/bcrec.8.2.4874.160-166

DOI: https://doi.org/10.9767/bcrec.8.2.4874.160-166

Hydrogen Production via Glycerol Dry Reforming over La-Ni/Al2O3 Catalyst

Kah Weng Siew¹, Hua Chyn Lee¹, Jolius Gimbun^{1, 2}, Chin Kui Cheng^{1, 2}

¹Faculty of Chemical & Natural Resources Engineering, Universiti Malaysia Pahang, Lebuhraya Tun Razak, 26300 Gambang, Kuantan Pahang, Malaysia

²Center of Excellence for Advanced Research in Fluid Flow, Universiti Malaysia Pahang, Lebuhraya Tun Razak, 26300 Gambang, Kuantan Pahang, Malaysia

Received: 12 May 2013; Revised: 7 Oct 2013; Accepted: 16 Oct 2013; Available online: 7 Dec 2013; Published: 30 Dec 2013.

Editor(s): Istadi Istadi

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

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BibTex Citation Data :

@article{BCREC19501,
    author = {Kah Weng Siew and Hua Chyn Lee and Jolius Gimbun and Chin Kui Cheng},
    title = {Hydrogen Production via Glycerol Dry Reforming over La-Ni/Al2O3 Catalyst},
    journal = {Bulletin of Chemical Reaction Engineering & Catalysis},
  volume = {8},
    number = {2},
    year = {2013},
    keywords = {Biofuel; Dry Reforming; Glycerol; Hydrogen},
    abstract = { Glycerol (a bio-waste generated from biodiesel production) has been touted as a promising bio-syngas precursor via reforming route. Previous studies have indicated that carbon deposition is the major performance-limiting factor for nickel (Ni) catalyst during glycerol steam reforming. In the current paper, dry (CO2)-reforming of glycerol, a new reforming route was carried out over alumina (Al2O3)-supported non-promoted and lanthanum-promoted Ni catalysts. Both sets of catalysts were synthesized via wet co-impregnation procedure. The physicochemical characterization of the catalyst showed that the promoted catalyst possessed smaller metal crystallite size, hence higher metal dispersion compared to the virgin Ni/Al2O3 catalyst. This was also corroborated by the surface images captured by the FESEM analysis. In addition, BET surface area measurement gave 92.05m²/g for non-promoted Ni catalyst whilst promoted catalysts showed an average of 1 to 6% improvement depending on the La loading. Reaction studies at 873 K showed that glycerol dry reforming successfully produced H2 with glycerol conversion and H2 yield that peaked at 9.7% and 25% respectively over 2wt% La content. The optimum catalytic performance by 2%La-Ni/Al2O3 can be attributed to the larger BET surface area and smaller crystallite size that ensured accessibility of active catalytic sites.   © 2013 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (  https://creativecommons.org/licenses/by-sa/4.0  ) },
   issn = {1978-2993},   pages = {160--166}  doi = {10.9767/bcrec.8.2.4874.160-166},
    url = {https://journal.bcrec.id/index.php/bcrec/article/view/19501}
}

Citation Format:

Abstract

Glycerol (a bio-waste generated from biodiesel production) has been touted as a promising bio-syngas precursor via reforming route. Previous studies have indicated that carbon deposition is the major performance-limiting factor for nickel (Ni) catalyst during glycerol steam reforming. In the current paper, dry (CO2)-reforming of glycerol, a new reforming route was carried out over alumina (Al2O3)-supported non-promoted and lanthanum-promoted Ni catalysts. Both sets of catalysts were synthesized via wet co-impregnation procedure. The physicochemical characterization of the catalyst showed that the promoted catalyst possessed smaller metal crystallite size, hence higher metal dispersion compared to the virgin Ni/Al2O3 catalyst. This was also corroborated by the surface images captured by the FESEM analysis. In addition, BET surface area measurement gave 92.05m²/g for non-promoted Ni catalyst whilst promoted catalysts showed an average of 1 to 6% improvement depending on the La loading. Reaction studies at 873 K showed that glycerol dry reforming successfully produced H2 with glycerol conversion and H2 yield that peaked at 9.7% and 25% respectively over 2wt% La content. The optimum catalytic performance by 2%La-Ni/Al2O3 can be attributed to the larger BET surface area and smaller crystallite size that ensured accessibility of active catalytic sites. © 2013 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0)

Keywords: Biofuel; Dry Reforming; Glycerol; Hydrogen

Funding: Ministry of Higher Education Malaysia under contract MTUN-CoE research grant with vot. no. RDU121216

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Section: Original Research Articles

Language : EN

In 2013: BCREC Volume 8 Issue 2 Year 2013 (December 2013)

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