Syngas Production over Nanosized Multicomponent Co-Fe-Containing Catalysts
Tilegen K.T. Itkulova S.S. Zhumash M.A. Boleubayev Y.A. Abilmagzhanov A.Z.
December 2025Multidisciplinary Digital Publishing Institute (MDPI)
Nanomaterials
2025#15Issue 23
Carbon dioxide reforming of methane is a promising technology to recycle and reduce greenhouse gases (CH4, CO2) into valuable chemicals and fuels. The Co-Fe catalysts modified with a small amount of Pt and supported on alumina were designed to be explored in dry reforming (DRM) and combined CO2-steam reforming (bireforming, BRM) of methane to produce syngas. The catalysts were characterized by physico-chemical methods (i.e., BET, XRD, TEM, SEM, and TPR-H2). The synthesized catalysts are the X-ray amorphous nanosized materials with particle sizes of less than 30 nm. The processes were carried out using a feed of CH4/CO2/H2O = 1/1/0–0.5 at varying temperature (400–800 °C) at atmospheric pressure and GHSV = 1000 h−1. The combination of Co and Fe in varying ratios with Pt allowed for high activity and selectivity to be maintained. Extents of methane and CO2 conversion are varied within a range of 79.5–97.5 and 64.2–85.2%, respectively, at 700–800 °C, while the H2/CO ratio in the resulting syngas ranged from 0.98 to 1.30, depending on the catalyst and feed composition. Stability tests conducted for up to 80 h on stream showed no loss of activity of the 10%Co-Fe-Pt/Al2O3 catalysts in BRM. We believe that high activity of the synthesized catalysts occurs due to synergy in the Co-Fe-Pt system.
carbon dioxide , Co-Fe nanosized catalysts , methane , synergetic effect , syngas
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D.V. Sokolsky Institute of Fuel, Catalysis and Electrochemistry, 142, Kunaev Str., Almaty, 050010, Kazakhstan
School of Chemical Engineering, Kazakh British Technical University, Almaty, 050000, Kazakhstan
D.V. Sokolsky Institute of Fuel
School of Chemical Engineering
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