HONEYCOMB TYPE LOW-TEMPERATURE SCR DENITRATION CATALYST AND PREPARATION METHOD THEREFOR

摘要

A honeycomb type low-temperature SCR denitration catalyst and a preparation method therefor, comprising the following steps: A. mixing: adding 100-150 parts titanium molybdenum powder, 8-20 parts carboxymethyl cellulose, 5-10 parts polyethylene oxide, 5-7.5 parts silica powder, 5-7.5 parts silica sol, 7-18 parts wood pulp, 25-50 parts glass fiber, 50-80 parts deionized water, 5-15 parts of an ammonium metavanadate solution, 10-20 parts of an ammonium metatungstate solution, 30-55 parts ammonia water and 10-20 parts lactic acid by weight to a mixer for thorough mixing; after mixing, extracting water vapor in the mixer, wherein the molybdenum content in the titanium molybdenum powder is ≥7%; B. molding; C. drying; and D. calcining. The present preparation method reduces energy consumption, and the denitration efficiency of the prepared honeycomb type low-temperature SCR denitration catalyst reaches over 83% between a temperature of 160-250°C.