Comparison of different catalyst preparation methods for NiCe/MgAl in biogas oxy-steam reforming process

Doğan Özcan M., Akın A. N.

The Sixth International Hydrogen Technologies Congress (IHTEC-2022), Çanakkale, Türkiye, 23 - 26 Haziran 2022, ss.229-231

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Çanakkale
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.229-231
  • Kocaeli Üniversitesi Adresli: Evet

Özet

In the present work, the effect of different catalyst preparation methods on physicochemical properties of the catalysts and their catalytic activities was investigated in oxy-steam reforming of biogas system (OSR). Co-precipitation, hydrothermal, and sol-gel techniques were applied to prepare NiCe/MgAl catalysts. All the catalysts were characterized by using XRD, BET, ICP-OES, XPS, SEM, and TGA analyses to understand the effects of different preparation methods and reaction conditions. The activity tests were performed in a downflow packed-bed reactor system at 600 °C, 700 °C, and 800 °C under atmospheric pressure. Also, a constant feed gas molar ratio of CH4/CO2/O2/H2O = 1/0.67/0.1/0.3 was selected in all reaction runs. The results were demonstrated that high CH4 conversion (94 %), CO2 conversion (82 %), H2 yield (95 %), and H2/CO of 1.5 with low carbon formation were obtained on the catalyst prepared by co-precipitation (NCMA-co).