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Research Article
Volume 1, Article ID: 2025.0001
Mohammed Abdulrahim
mohammedsadidee@gmail.com
Usman Habu Taura
usman.taura@unimaid.edu.ng
Abdulhalim Musa Abubakar
abdulhalim@mau.edu.ng
Marwea Al-Hedrewy
mereng@iunajaf.edu.iq
1 Department of Chemical Engineering, Faculty of Engineering, University of Maiduguri, P.M.B. 1069, Maiduguri, Borno State, Nigeria
2 Oil and Gas Research Centre, Sultan Qaboos University, Muscat, Oman
3 Department of Chemical Engineering, Faculty of Engineering, Modibbo Adama University, P.M.B. 2076, Girei, Adamawa State, Nigeria
4 College of Technical Engineering, The Islamic University, Najaf, Iraq
5 College of Technical Engineering, The Islamic University of Al Diwaniyah, Al Diwaniyah, Iraq
* Author to whom correspondence should be addressed
Received: 30 Jan 2025 Accepted: 18 Apr 2025 Available Online: 02 May 2025
Refinery-used metallic catalysts are supplied in oxide forms, meaning that reduction is necessary for them to activate. Using glucose solution and a molar steam-to-carbon ratio of six (S/C = 6), NiO/Al2O3 catalysts are reduced at temperatures ranging from 500-750 °C. Steam reforming in a downflow bed reactor comes next. Through the use of XRD, TGA-FTIR, and SEM examination, the behaviour of the reacted catalyst was examined. It was found that it is possible to reduce the catalyst at temperatures as low as 550 °C; but below 650 °C, the reacted catalysts become particle- and agglomerate-like. The agglomerated sample has much more carbon than the particle form, according to TGA-FTIR measurements. Agglomeration has a detrimental effect on the efficiency of steam reforming. SEM reveals that carbon is present in the agglomerated sample as big, flat plates of around 100 m, and additionally deposited as short debris on the particle sample's surface. However, no agglomeration is seen at temperatures higher than 650 °C. Between 650 and 700 °C there was a significant rise in the conversion of glucose and H2 production due to the elimination of agglomeration catalysts. Around 61% of the H2 is pure at 700 °C, and the H2 production is 10.2%, or 12.1% of the equilibrium value, while the conversions of water and glucose are 10% and 97%, respectively.
Disclaimer: This is not the final version of the article. Changes may occur when the manuscript is published in its final format.