SYNTHESIS AND CHARACTERIZATION OF NI-CU/AL2O3-ZRO2 NANOCATALYST VIA SEQUENTIAL IMPREGNATION AND SOL-GEL METHODS USED IN CH4/CO2 CONVERSION TO SYNGAS

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SHARIFI MAHDI; HAGHIGHI MOHAMMAD; ALIZADEH ESLAMI ALI; RAHMANI FARHAD; RAHEMI NADER

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Journal: PETROLEUM RESEARCH Year:2016 | Volume:25 | Issue:85-1 Page(s): 142-157

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Title

SYNTHESIS AND CHARACTERIZATION OF NI-CU/AL2O3-ZRO2 NANOCATALYST VIA SEQUENTIAL IMPREGNATION AND SOL-GEL METHODS USED IN CH4/CO2 CONVERSION TO SYNGAS

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Keywords

NI-CU/AL2O3-ZRO2 NANOCATALYSTQ2

IMPREGNATIONQ2

SOL-GELQ1

DRY REFORMINGQ2

SYNTHESIS GASQ2

Abstract

In this study, the effect of SOL-GEL method on the physicochemical properties of Ni-Cu/Al2O3-ZrO2 nanocatalyst was evaluated in comparison to sequential IMPREGNATION method. The nanocatalysts characterization was assessed by XRD, FESEM, PSD, EDS, FTIR, and TG-DTG analysis. The characterization results showed that a more uniform particle size distribution is obtained by the SOL-GEL method compared to the IMPREGNATION one. However, the surface area of this catalyst reduced due to the reduction of porous media and high particles density. Moreover, the SOL-GEL synthesis method led to the formation of very closely amorphous phases and the enhanced alkaline properties as a result of more-OH stretching vibration. Reforming of methane with CO2 was performed over Ni-Cu/Al2O3-ZrO2 at atmospheric pressure. The catalysts performance is inquired as a function of reaction temperature (550- 850oC) and the results are reported in terms of feed conversion and syngas ratio. In the studied temperature range, it was found that the SOL-GEL synthesized catalyst showed a high activity. The best results were gained at 850oC. Syngas ratio at this temperature was 0.94, which was very close to the stoichiometry ratio.

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APA: Copy

SHARIFI, MAHDI, HAGHIGHI, MOHAMMAD, ALIZADEH ESLAMI, ALI, RAHMANI, FARHAD, & RAHEMI, NADER. (2016). SYNTHESIS AND CHARACTERIZATION OF NI-CU/AL₂O₃-ZRO₂ NANOCATALYST VIA SEQUENTIAL IMPREGNATION AND SOL-GEL METHODS USED IN CH₄/CO₂ CONVERSION TO SYNGAS. PETROLEUM RESEARCH, 25(85-1), 142-157. SID. https://sid.ir/paper/114987/en

Vancouver: Copy

SHARIFI MAHDI, HAGHIGHI MOHAMMAD, ALIZADEH ESLAMI ALI, RAHMANI FARHAD, RAHEMI NADER. SYNTHESIS AND CHARACTERIZATION OF NI-CU/AL₂O₃-ZRO₂ NANOCATALYST VIA SEQUENTIAL IMPREGNATION AND SOL-GEL METHODS USED IN CH₄/CO₂ CONVERSION TO SYNGAS. PETROLEUM RESEARCH[Internet]. 2016;25(85-1):142-157. Available from: https://sid.ir/paper/114987/en

IEEE: Copy

MAHDI SHARIFI, MOHAMMAD HAGHIGHI, ALI ALIZADEH ESLAMI, FARHAD RAHMANI, and NADER RAHEMI, “SYNTHESIS AND CHARACTERIZATION OF NI-CU/AL₂O₃-ZRO₂ NANOCATALYST VIA SEQUENTIAL IMPREGNATION AND SOL-GEL METHODS USED IN CH₄/CO₂ CONVERSION TO SYNGAS,” PETROLEUM RESEARCH, vol. 25, no. 85-1, pp. 142–157, 2016, [Online]. Available: https://sid.ir/paper/114987/en

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