ABSTRACT
A small loading of highly dispersed Ru on Ni/MgAl2O4 catalyst was investigated in the dry reforming of methane (DRM) process. The catalysts were synthesized by impregnation and deposition-precipitation methods; the DRM reaction was performed at CH4/CO2/N2 = 1/1/1 and 600‒750°C. The bimetallic Ni‒Ru catalysts exhibited improved reducibility and metal dispersion compared with that of the Ni catalyst. Among the synthesized catalysts, the Ru(D)/Ni(I)/MgAl2O4 catalyst had the highest metal dispersion (7.23%) and largest amount of CO2 desorption (135 μmol/g). Thus, this catalyst exhibited the highest CH4 conversion (85.6%) at 750°C. Additionally, coke deposition of only 2.69% occurred during the stability test.
Acknowledgments
This study was supported by the Ministry of Trade, Industry & Energy (MOTIE) and the Korea Institute of Energy Technology Evaluation and Planning (KETEP) of the Republic of Korea (No.20203030030080).
Disclosure statement
No potential conflict of interest was reported by the author(s).
Supplementary material
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