Medium-temperature denitration and heat storage integrated rare earth composite ceramic material

Abstract

The invention discloses a medium-temperature denitration and heat storage integrated rare earth composite ceramic material, and belongs to the technical field of catalysis. The denitration catalyst isprepared according to the processes of kneading mud, aging, performing extrusion moulding, drying and calcinating, impregnating with a catalytic slurry, redrying and calcinating and from the following main components: zirconium oxide fiber, anorthite, boron nitride, barium carbonate, montmorillonite, carbon fiber, titanium dioxide, chlorinated polyethylene, a methyl methacrylate-butadiene-styreneterpolymer, cyanoethylcellulose, phthalate, monoethanolamine and stearic acid. The medium-temperature denitration and heat storage integrated rare earth composite ceramic material can be widely applied to air preheaters of a coal-fired boiler, a thermal power unit and the like, can save energy and improve the energy utilize efficiency, reduces pollution emission, and is a novel technology benefiting the country and people.

Description

technical field [0001] The invention relates to a composite ceramic material, in particular to a rare earth composite ceramic material integrated with medium temperature denitrification and heat storage. 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 cons...

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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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