Tan, R. S. and Alir, A. and Mohamad, S. A. and Isa, K. M. and Abdullah, T. A. T. (2019) Ni-based catalysts for steam reforming of tar model derived from biomass gasification. In: 7th Conference on Emerging Energy and Process Technology, CONCEPT 2018, 27-28 Nov 2018, Thistle Hotel Johor, Malaysia.
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Official URL: http://www.dx.doi.org/10.1051/e3sconf/20199001015
Abstract
Tar formation during biomass gasification is a major barrier to utilise the produced syngas, which clogs processing equipment. In the present study, steam reforming of gasification-derived tar (phenol, toluene, naphthalene, and pyrene) was catalysed by Ni/dolomite, Ni/dolomite/Al2O3, Ni/dolomite/La2O3, Ni/dolomite/CeO2, and Ni/dolomite/ZrO2 for hydrogen production. The steam reforming experiment was conducted in a fixed bed reactor at 700 °C and the steam-To-carbon molar ratio of 1 under atmospheric pressure. After the catalytic test, the spent catalysts were characterised by thermogravimetric analysis and variable-pressure scanning electron microscope. The aim of this study is to investigate the catalytic activity of Ni-based catalysts in terms of tar conversion and their deactivation characteristic. The current results revealed that all the catalysts showed almost full conversion of tar (98.8%-99.9%) and considerably low amount of coke deposited in the form of amorphous and filamentous carbon (15.9-178.5 mg gcat-1). Among the catalysts studied, Ni/dolomite/La2O3 gave the highest catalytic activity for steam reforming of gasified biomass tar and lowest coke formation.
Item Type: | Conference or Workshop Item (Paper) |
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Uncontrolled Keywords: | amorphous carbon, atmospheric pressure, biomass |
Subjects: | T Technology > TP Chemical technology |
Divisions: | Chemical and Energy Engineering |
ID Code: | 88781 |
Deposited By: | Narimah Nawil |
Deposited On: | 29 Dec 2020 04:25 |
Last Modified: | 29 Dec 2020 04:25 |
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