Medium temperature catalytic denitration and heat storage composite ceramic material

Abstract

The invention discloses a medium temperature catalytic denitration and heat storage composite ceramic material which mainly comprises the following components: spodumene, mullite, silicon carbide, alumina micro powder, calcium carbonate whisker, cellulosic fibers, carbon fibers, chlorinated polyethylene, a methyl methacrylate-butadiene-styrene copolymer, hydroxypropyl methyl cellulose, phthalic acid ester, monoethanolamine and stearic acid. The composite ceramic material is prepared by the steps: performing pug kneading, ageing, performing extrusion molding, drying and calcining, performing impregnated catalysis on slurry, drying and calcining again, thereby obtaining the product. The composite ceramic material disclosed by the invention can be widely applied to air pre-heaters of coal-fired boilers, thermal power generating units and the like, can save the energy, improve the energy utilization rate and reduce pollution discharge, and is really a new technology that benefits the nation and the people.

Description

technical field [0001] The invention relates to a composite ceramic material, in particular to a medium-temperature catalytic denitrification heat storage composite ceramic material. Background technique [0002] In recent years, energy and its related environment have become the most concerned hotspots in countries all over the world. Due to the shortage of per capita energy resources, limited environmental capacity and fragile ecology in our country, it will greatly restrict the sustainable development of our country. Domestic GDP is growing rapidly every year, energy consumption is increasing rapidly, and the environment and ecology are deteriorating day by day. Saving energy and reducing consumption has become a major direction for solving energy problems. According to statistics, the energy consumption of the domestic industrial sector accounts for 70% of the total energy in the country. Among them, industrial furnaces are the largest energy consumers in my country, ...

AI Technical Summary

Problems solved by technology

[0006] The traditional vanadium-titanium denitrification catalyst has a narrow activation temperature window (320-400°C), and is susceptible to SO 2 Poisoning, low activity at low temperature, and easy to produce ammonium sulfate, which can block the catalyst hole, air preheater and downstream equipment, cause a large pressure drop in the system, increase the electricity cost of the induced draft fan and other unfavorable factors

[0007] Moreover, the existing rare earth-based catalysts do not have heat storage function, and have poor wear resistance, narrow active temperature range, low strength, and short service life; so that the scope of application is greatly limited. Therefore, we urgently need to study a new catalyst to replace The above products

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