期刊
CATALYSIS TODAY
卷 362, 期 -, 页码 72-80出版社
ELSEVIER
DOI: 10.1016/j.cattod.2020.04.045
关键词
Heterogeneous catalysis; Microwave heating; Dry reforming; Syngas; Methane; Carbon dioxide
资金
- European Union's Horizon 2020 Research and Innovation Programme (ADREM project) [680777]
- H2020 Societal Challenges Programme [680777] Funding Source: H2020 Societal Challenges Programme
The study demonstrates that microwave-assisted dry reforming of methane can achieve high and steady conversions of CH4 and CO2 up to 90% when using a mechanical mixture of Ni/Al2O3-SiC and Ni/SiC. Compared to steam reforming, the microwave-assisted dry reforming of methane over Ni/SiC is shown to be a competitive and cost-effective process candidate.
Energy-efficient CH4-CO2 valorization to fuels and chemicals presents an urgent need considering the great variety of methane sources and the removal of greenhouse gases. In the present work, the microwave-assisted dry reforming of methane, DRM, has been carried out in a custom-designed rectangular mono-mode microwave applicator over several catalyst-support combinations, i.e., Pt/C, Ni/Al2O3, mechanical mixture of Ni/Al2O3-SiC and Ni/SiC. The high and steady conversions of CH4 and CO2 were obtained in the case of the mechanical mixture of Ni/Al2O3-SiC and Ni/SiC. In all the combinations investigated, the conversions reached up to 90% at a WHSV of 11,000 mL/g/h, and microwave power input of 45-60 W, at 800 degrees C. No significant catalyst deactivation has been observed during the 6-h operation except of Pt/C catalyst. Moreover, the microwave-assisted dry reforming of methane over Ni/SiC was shown to be an interesting, cheap process candidate, able to compete with the steam reforming.
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