石油学会 年会（研究発表会）

A novel approach was used to synthesize nickel nanoparticle catalysts encapsulated on Al₂O₃/SBA-15 for bio-oil steam reforming. The potential nickel sintering issue at high temperatures during catalytic activity could be solved by using the encapsulation method to avoid agglomeration and the accumulation of coke. Also, the promoter, CeO₂ (Ceria), was specifically used to prevent the deactivation mechanism of nickel nanoparticles encapsulated on the Al₂O₃/SBA-15. The prepared catalysts were characterized by using BET, AFM, XRD, and H₂-TPR. Additionally, the produced coke after catalytic activity was also determined using DTG. The difference in CeO₂ addition significantly affected the catalytic activity in bio-oil steam reforming. The Ni#0.5Ce/Al₂O₃/SBA-15 catalyst demonstrated a conversion at 100% with a hydrogen yield percentage reaching up to 90% at 650^oC. The Ni-based catalyst prepared from the encapsulation method combined with CeO₂ provided high nickel dispersion, minimized the carbon formation, and ensured the stability of Ni#xCe/Al₂O₃/SBA-15 catalyst, where enhancing the catalytic performance of bio-oil steam reforming.