Low-cost denitration catalyst and preparation process thereof

Abstract

The invention discloses a low-cost denitration catalyst and a preparation process thereof. The catalyst comprises the following components: nanometer TiO2 powder, montmorillonite, ammonium metatungstate, ammonium metavanadate, chopped glass fiber, broad-leaf forest wood pulp fiber, carboxymethyl cellulose, polyoxyethylene and stearic acid. The preparation process of the low-cost denitration catalyst comprises the steps: dissolving the ammonium metavanadate by taking an aqueous solution of monoethanolamine as a solvent, dissolving the ammonium metatungstate into water under normal temperature, and continuously stirring the solution for 1h for later use; and sufficiently kneading the raw material of the catalyst to obtain a plastic pug, placing the plastic pug into a sealed plastic bag to store for a plurality of hours to age, forming the pug into a honeycomb-shaped catalyst blank, entering a dried honeycomb body into a mesh band type tunnel kiln for roasting, cutting a final roasted product according to the required length, assembling the product into a module box body, and externally packaging the product. The low-cost denitration catalyst is low in cost and capable of effectively improving the denitration performance, enhancing the mechanical strength of the product and improving the wear resistance.

Description

technical field [0001] The invention belongs to the field of catalyst manufacturing, in particular to a low-cost denitration catalyst manufacturing process. Background technique [0002] my country's energy structure is dominated by coal, and the nitrogen oxides produced by coal burning are one of the main sources of air pollution. It will not only cause acid rain, photochemical smog and other problems that damage the earth's ecological environment, but also seriously harm the human body. health. As my country pays more and more attention to environmental protection, national and local environmental protection departments have stricter controls on the discharge and total amount of pollutants, especially the "Emission Standards of Air Pollutants for Thermal Power Plants" (GB13223-2011, January 2012 Implementation) clearly stipulates that the emission limit of nitrogen oxides from coal-fired boilers is 100mg / Nm 3 , Only using low-nitrogen combustion technology can no longer me...

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Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a low-cost denitrification catalyst and its manufacturing process, aiming to solve the problems of high price of conventional dried and calcined catalysts, greatly restricted manufacturing costs, and limited profit margins

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