Study on Catalytic Performance of Fe-Ni Catalysts Supported on SiO2 for Steam Reforming Reaction of Naphthalene

Abstract

Fe_x-Ni_1-x /SiO₂ catalysts (x= 1, 0.8, 0.6, 0.5, 0.4, 0.2 and 0) were successfully prepared via microwave-assisted impregnation method. XRD, XRF, SEM and BET measurements ensured the success of the impregnation of Fe and Ni catalysts on SiO₂ support. The catalytic activities of these catalysts were performed toward the steam reforming of naphthalene (as a model compound) at 700^oC for 18 h. The main products from the reactions were H₂, CO, CO₂, CH₄ and other hydrocarbons. Among all catalysts, Fe_0.4-Ni_0.6/SiO₂ has shown the highest naphthalene conversion and H₂ yield with greater carbon resistance. Furthermore, it was found that the influence of increasing Fe content tended to reduce the amount of carbon deposition on SiO₂ surface.