The invention relates to a monolithic
flue gas denitration catalyst with
silicon-based
ceramic as a carrier and a preparation method thereof, which pertains to the fields of
atmospheric pollution treatment technology and
pollution-free catalyst materials. The monolithic
flue gas denitration catalyst is characterized in that the
silicon-based
ceramic is taken as a first carrier, active
silicon dioxide is taken as a second carrier, a proper amount of one or a plurality of
transition metal oxides of Mo, W, Cu, Fe, Zr, La, and the like, is added to CeO2 as the
active components. The preparation method adopted is as follows: the silicon-based
ceramic is immersed into
alumina sol, dried and baked to prepare an active
silicon dioxide coating, and then immersed into Ce(NO3)3 solution to prepare an active CeO2
coating. Compared with the prior art, the preparation method of the invention not only improves the mechanical and
heat stability of the catalyst carrier, and reduces the load of the
active components, but also protects the environment without secondary
pollution, enhances the activity of the catalyst, and increases the activity temperature window.