Journal
JOURNAL OF SAUDI CHEMICAL SOCIETY
Volume 16, Issue 1, Pages 55-61Publisher
ELSEVIER
DOI: 10.1016/j.jscs.2010.10.020
Keywords
CO2/CH4 Reforming; Nickel; Synthesis Gas; Stability; Calcination; Activation
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The effect of calcination temperatures on dry reforming catalysts supported on high surface area alumina Ni/gamma-Al2O3 (SA-6175) was studied experimentally. In this study, the prepared catalyst was tested in a micro tubular reactor using temperature ranges of 500, 600, 700 and 800 degrees C at atmospheric pressure, using a total flow rate of 33 ml/min consisting of 3 ml/min of N-2, 15 ml/min of CO2 and 15 ml/min of CH4. The calcination was carried out in the range of 500-900 degrees C. The catalyst is activated inside the reactor at 500-800 degrees C using hydrogen gas. It was observed that calcination enhances catalyst activity which increases as calcination and reaction temperatures were increased. The highest conversion was obtained at 800 degrees C reaction temperature by using catalyst calcined at 900 degrees C and activation at 700 degrees C. The catalyst characterization conducted supported the observed experimental results. (C) 2010 King Saud University. Production and hosting by Elsevier B. V. All rights reserved.
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