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Greenhouse gases mitigation by CO2 reforming of methane to hydrogen-rich syngas using praseodymium oxide supported cobalt catalyst

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Abstract

This study focuses on the potential of hydrogen-rich syngas production by CO2 reforming of methane over Co/Pr2O3 catalyst. The Co/Pr2O3 catalyst was synthesized via wet-impregnation method and characterized for physicochemical properties by TGA, XRD, BET, H2-TPR, FESEM, EDX, and FTIR. The CO2 reforming of methane over the as-synthesized catalyst was studied in a tubular stainless steel fixed-bed reactor at feed ratio ranged 0.1–1.0, temperature ranged 923–1023 K, and gas hourly space velocity (GHSV) of 30,000 h−1 under atmospheric pressure condition. The catalyst activity studies showed that the increase in the reaction temperature from 923 to 1023 K and feed ratio from 0.1 to 1.0 resulted in a corresponding increase in the reactant’s conversion and the product’s yields. At 1023 K and feed ratio of 1.0, the activity of the Co/Pr2O3 catalyst climaxed with CH4 and CO2 conversions of 41.49 and 42.36 %. Moreover, the catalyst activity at 1023 K and feed ratio of 1.0 resulted in the production of H2 and CO yields of 40.7 and 40.90 %, respectively. The syngas produced was estimated to have H2:CO ratio of 0.995, making it suitable as chemical building blocks for the production of oxygenated fuel and other value-added chemicals. The used Co/Pr2O3 catalyst which was characterized by TPO, XRD, and SEM-EDX show some evidence of carbon formation and deposition on its surface.

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Acknowledgments

The authors would like to acknowledge the research fund RDU130501 granted by the Ministry of Science, Technology and Innovation Malaysia (MOSTI). Bamidele Victor Ayodele gratefully appreciates the Universiti Malaysia Pahang for the provision of Doctoral Scholarship.

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Authors and Affiliations

  1. Faculty of Chemical & Natural Resources Engineering, Universiti Malaysia Pahang, Pekan, Malaysia

    Bamidele V. Ayodele, Maksudur R. Khan & Chin Kui Cheng

  2. Center of Excellence for Advanced Research in Fluid Flow, Lebuhraya Tun Razak, Gambang, 26300, Kuantan, Pahang, Malaysia

    Bamidele V. Ayodele, Maksudur R. Khan & Chin Kui Cheng

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  1. Bamidele V. Ayodele
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  2. Maksudur R. Khan
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  3. Chin Kui Cheng
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Correspondence to Chin Kui Cheng.

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Ayodele, B.V., Khan, M.R. & Cheng, C.K. Greenhouse gases mitigation by CO2 reforming of methane to hydrogen-rich syngas using praseodymium oxide supported cobalt catalyst. Clean Techn Environ Policy 19, 795–807 (2017). https://doi.org/10.1007/s10098-016-1267-z

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