BIOGAS FULL-COMPONENT CONVERSION BIOMETHANOL CATALYST LANIO₃/SIC-SIO₂-FOAM AND METHOD FOR PREPARATION THEREOF

摘要

The present invention relates to a biogas full-component conversion biomethanol catalyst LaNiO₃/SiC-SiO₂-Foam and method for preparation thereof. In the catalyst LaNiO₃/SiC-SiO₂-Foam, LaNiO₃ is loaded on the carrier SiC-SiO₂-Foam, and the loading amount of LaNiO₃ is 3%–7%. The LaNiO₃/SiC-SiO₂-Foam obtained by preparation of the present invention has a perovskite unit cell structure; all nickel and lanthanum elements are arranged in a certain order, and the nickel element in the Ni-La₂O₃/SiC-SiO₂-Foam obtained after reduction is precipitated in a corresponding arrangement order; the dispersibility is high, distribution is uniform, performance is stable, and the conversion rate is high, and the invention can catalyze very well a biogas full-component conversion synthesis gas for use in the synthesis of biomethanol. The preparation method of the present invention has a simple process and low cost, and is easy to commercialize and produce on a large scale.