Characterization of Ag-promoted Ni/SiO2 Catalysts for Syngas Production via Carbon Dioxide (CO2) Dry Reforming of Glycerol

Norazimah Harun; Jolius Gimbun; Mohammad Tazli Azizan; Sumaiya Zainal Abidin

doi:10.9767/bcrec.11.2.553.220-229

DOI: https://doi.org/10.9767/bcrec.11.2.553.220-229

Characterization of Ag-promoted Ni/SiO2 Catalysts for Syngas Production via Carbon Dioxide (CO2) Dry Reforming of Glycerol

Norazimah Harun¹, Jolius Gimbun^{1, 2}, Mohammad Tazli Azizan³, Sumaiya Zainal Abidin^{1, 2}

¹Faculty of Chemical Engineering & Natural Resources, Universiti Malaysia Pahang, 26300 Gambang, Pahang, Malaysia

²Centre of Excellence for Advanced Research in Fluid Flow (CARIFF), Universiti Malaysia Pahang, 26300 Gambang, Pahang, Malaysia

³Department of Chemical Engineering, Faculty of Engineering, Universiti Teknologi PETRONAS, 32610 Bandar Seri Iskandar, Perak Darul Ridzuan, Malaysia

Received: 22 Jan 2016; Revised: 22 Feb 2016; Accepted: 23 Feb 2016; Available online: 30 Jun 2016; Published: 20 Aug 2016.

Editor(s): BCREC JM

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Abstract

The carbon dioxide (CO₂) dry reforming of glycerol for syngas production is one of the promising ways to benefit the oversupply crisis of glycerol worldwide. It is an attractive process as it converts carbon dioxide, a greenhouse gas into a synthesis gas and simultaneously removed from the carbon biosphere cycle. In this study, the glycerol dry reforming was carried out using Silver (Ag) promoted Nickel (Ni) based catalysts supported on silicon oxide (SiO₂) i.e. Ag-Ni/SiO₂. The catalysts were prepared through wet impregnation method and characterized by using Brunauer-Emmett-Teller (BET) surface area, Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD), and Thermo Gravimetric (TGA) analysis. The experiment was conducted in a tubular reactor which condition fixed at 973 K and CO₂:glycerol molar ratio of 1, under atmospheric pressure. It was found that the main gaseous products are H₂, CO and CH₄ with H₂:CO molar ratio < 1.0. From the reaction study, Ag(5)-Ni/SiO₂ results in highest glycerol conversion and hydrogen yield, accounted for 32.6% and 27.4%, respectively.

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Keywords: Glycerol; Dry reforming; Syngas; Nickel-based catalysts; Silicon Oxide

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Section: The International Conference on Fluids and Chemical Engineering (FluidsChE 2015)

Language : EN

In 2016: BCREC Volume 11 Issue 2 Year 2016 (August 2016)

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