Journal
SYNTHESIS AND REACTIVITY IN INORGANIC METAL-ORGANIC AND NANO-METAL CHEMISTRY
Volume 44, Issue 6, Pages 881-890Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/15533174.2013.797439
Keywords
SO2 reduction by CH4; nanosized; ternary oxide catalysts; taguchi method; cerium lanthanum copper; cerium lanthanum nickel
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In this work, CeO2-La2O3-CuO and CeO2-La2O3-NiO catalysts were prepared based on the Taguchi L-16 experimental design method. The synthesized catalysts were characterized by Scanning electron microscopy, BET, XRD, N-2 adsorption isotherm, and BJH pore size distributions. The maximum obtained surface areas for these catalysts were 99.4 and 72.3m(2)/g, respectively. The related average crystal size of the above catalysts from XRD tests was about 6.8nm. The prepared optimum catalysts were tested for SO2 reduction by CH4. The SO2 conversion and sulfur yields at various temperatures were compared between optimized copper and nickel ternary oxide catalysts. The copper catalyst showed better performance at moderate temperatures, while at high temperatures the nickel catalyst exhibited better performance.
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