(439g) A Novel Carbon-Resistant Perovskite Catalyst for Hydrogen Production Using Methane Dry Reforming

The aim of this study is to evaluate a perovskite catalyst, prepared by the sol-gel method, as a carbon resistant Catalyst in methane dry reforming under different conditions. The ABO3+δ (CeCoxNi1-xO3+δ ) perovskite was used for the methane dry reforming investigation due to their crystalline nature and the ability to accommodate a wide range of cations, perovskites possess catalytically advantageous oxidation and reduction properties. In order to develop perovskites with potential for industrial application, high surface area oxides with composition homogeneity were selected. The Perovskites as multicomponent oxides was prepared by sol-gel synthesis which is considered as a most effective technique for preparing these compounds. Several characterization techniques were employed such as XRD,TEM,SEM,TPR,TPO and TOC to evaluate the properties of the fresh and spent perovskite catalyst. The tested perovskite catalyst ABO3+δ , oxygen-rich catalyst, exhibited superior catalytic performance over previously studied catalyst ABO3 such as LaCoO3 and LaNiO3 systems. It is believed that the high catalyst performance was achieved du to the electronic interactions between the Co and Ni sites which is a result of atomic scale level mixing of the ingredients using the sol-gel method. XRD, BET and TOC results revealed that the presence of ceria in the perovskite system used in methane dry reforming catalysts can improve coking resilience and confer stability even under prolonged usage in carbon-rich environments.