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Ni-based catalysts for steam reforming of tar model derived from biomass gasification

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.


Official URL: http://www.dx.doi.org/10.1051/e3sconf/20199001015


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)
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 12:25
Last Modified:29 Dec 2020 12:25

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