Production of CO-rich Hydrogen Gas from Methane Dry Reforming over Co/CeO2 Catalyst

Abstract

<p>Production of CO-rich hydrogen gas from methane dry reforming was investigated over CeO₂-supported Co catalyst. The catalyst was synthesized by wet impregnation and subsequently characterized by field emission scanning electron microscope (FESEM), energy dispersion X-ray spectroscopy (EDX), liquid N₂ adsorption-desorption, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA) for the structure, surface and thermal properties. The catalytic activity test of the Co/CeO₂ was investigated between 923-1023 K under reaction conditions in a stainless steel fixed bed reactor. The composition of the products (CO₂ and H₂) from the methane dry reforming reaction was measured by gas chromatography (GC) coupled with thermal conductivity detector (TCD). The effects of feed ratios and reaction temperatures were investigated on the catalytic activity toward product selectivity, yield, and syngas ratio. Significantly, the selectivity and yield of both H₂ and CO increases with feed ratio and temperature. However, the catalyst shows higher activity towards CO selectivity. The highest H₂ and CO selectivity of 19.56% and 20.95% respectively were obtained at 1023 K while the highest yield of 41.98% and 38.05% were recorded for H₂ and CO under the same condition. Copyright © 2016 BCREC GROUP. All rights reserved</p><p><em>Received: 21^st January 2016; Revised: 23^rd February 2016; Accepted: 23^rd February 2016</em></p><p><strong>How to Cite:</strong> Ayodele, B.V., Khan, M.R., Cheng, C. K. (2016). Production of CO-rich Hydrogen Gas from Methane Dry Reforming over Co/CeO₂ Catalyst. <em>Bulletin of Chemical Reaction Engineering &amp; Catalysi</em>s, 11 (2): 210-219 (doi:10.9767/bcrec.11.2.552.210-219)</p><p><strong>Permalink/DOI:</strong> http://dx.doi.org/10.9767/bcrec.11.2.552.210-219</p>