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Hydrogen production from wood gasification promoted by waste eggshell catalyst


Yap, Taufiq Yun Hin and Wong, P. and Tengku Azmi, Tengku Sharifah Marliza and Nawi @ Mohamed, Nurul Suziana and Tang, Lok Hing and Seenivasagam, Sivasangar (2013) Hydrogen production from wood gasification promoted by waste eggshell catalyst. International Journal of Energy Research, 37 (14). pp. 1866-1871. ISSN 0363-907X; ESSN: 1099-114X


Bio-hydrogen renowned as a future potential hydrogen source and studies were devoted in developing the efficient way to obtain the hydrogen. Biomass gasification of Azadirachta excelsa wood was carried out with addition of naturally derived CaO catalyst using temperature-programmed gasification (TPG) technique. The reaction (TPG) was performed at 50–1000°C in 5% O2/He with flow rate 10 ml/min, and the product gas evolution (H2, CH4, CO and CO2) was detected by online mass spectrometer. The waste eggshell was chosen as a natural source of CaO, and the effect of catalyst loading was investigated in this study. All the fresh and used catalysts were characterized, and the physicochemical changes of the eggshell were observed through scanning electron microscopy, X-ray fluorescence and X-ray diffraction techniques. Hydrogen yield were increased along with the catalyst loading (20%, 40% and 60%) from 57 to 73%, respectively, compared to the reaction without catalyst. The additions of waste eggshell enhanced the catalytic activity and suppressed CO2 production through CaO absorption property which induced the water gas shift reaction that promotes H2 production at lower temperature.

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Additional Metadata

Item Type: Article
Divisions: Faculty of Science
DOI Number: https://doi.org/10.1002/er.3003
Publisher: John Wiley & Sons
Keywords: CaO; Catalyst; Gasification; Hydrogen; Waste eggshell
Depositing User: Umikalthom Abdullah
Date Deposited: 30 Jun 2014 00:49
Last Modified: 24 Nov 2016 04:33
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1002/er.3003
URI: http://psasir.upm.edu.my/id/eprint/30086
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