Composite denitration catalyst and production method thereof

Abstract

The embodiment of the invention provides a composite denitration catalyst and a production method thereof, and the composite denitration catalyst comprises the following components: 20%-30% of alumina seeds, 40%-50% of titanium oxide, 15%-20% of resin particles, 0-1% of vanadium metal salt, 0-2% of tungsten metal, 5%-10% of manganese metal salt and cerium metal salt, 1%-4% of a binder and 1%-5% of a reinforcing agent, the molar weight ratio of the manganese metal salt to the cerium metal salt is 3: 2. The production method comprises the steps of quantitative weighing, small ball rolling, microwave drying, material mixing, filling and forming, secondary microwave drying, demolding, in-furnace roasting and the like. The production cost of the denitration catalyst can be effectively reduced, the catalytic efficiency of the denitration catalyst is improved, and the denitration catalyst is non-toxic, harmless, green and environment-friendly.

Description

technical field [0001] The invention relates to the technical field of catalysts, in particular to a composite denitration catalyst and a production method thereof. Background technique [0002] The main market of my country's SCR (Selective Catalytic Reduction, Selective Catalytic Reduction) catalyst is concentrated in two fields of thermal power plants and automobile exhaust treatment. In the field of thermal power plants, although hydropower and nuclear power development technologies are gradually maturing, and the country is actively building new low-pollution or even non-polluting power generation, thermal power still accounts for a large proportion in China, a large power-consuming country, so the use of denitrification catalysts is relatively large. big. [0003] Among various flue gas denitrification technologies, the SCR method is considered to be the most effective flue gas denitrification method. Catalyst selection is the focus of SCR technology. Different catal...