Iridium promoted Ni‐Co/Al2O3‐ZrO2 catalyst for dry reforming of methane. (2nd November 2017)

• Record Type: Journal Article
• Authors: Fakeeha, Anis Hamza; Ibrahim, Ahmed Aidid; Arafat, Yasir; Atia, Hanan; Abasaeed, Ahmed Elhag; Al‐Fatesh, Ahmed Sadeq
• Is Part Of: Canadian journal of chemical engineering. Volume 96:Number 4(2018)
• Page Start: 955
• Page End: 960
• Publication Date: 2017-11-02
• Subjects: alumina‐zirconia mixed support -- combined nickel‐cobalt -- methane dry reforming -- iridium promoter; Chemical engineering -- Periodicals; Technology -- Periodicals; 660.05
• DOI: 10.1002/cjce.23032
• Languages: English
• ISSNs: 0008-4034

Abstract

Abstract: CO2 reforming of methane to produce synthesis gas was examined in a fixed bed reactor, using a combined nickel‐cobalt based catalyst supported on a mixed oxide (modified alumina with ZrO2 ) obtained by the sol‐gel method. The loading of nickel and cobalt was kept at 0.0500 g/g (1:1), while the amount of Ir varied between 0.0000 to 0.0100 g/g. The reforming reactions were performed at 700 °C. The time on stream profile for 360 min showed that all catalysts were very active and stable. The promoter doping of 0.0250 g/gCo‐0.0250 g/gNi‐X g/g Ir/(Al2 O3 ‐ZrO2 ) catalysts augmented the activity regarding the CH4 and CO2 by 20 %. The catalysts were characterized by means of TGA, TPR, TPD, XRD, and SEM. The TGA and TPR results showed that the promoter depressed the carbon deposition and upgraded the reducibility of the active metals in that order. While the TPD analysis illustrated the basic sites of the catalyst are of medium strength.