Low-temperature denitration and heat storage integrated catalytic type honeycomb ceramic material

Abstract

The invention discloses a low-temperature denitration and heat storage integrated catalytic type honeycomb ceramic material. The ceramic material is characterized by being mainly prepared from 70 to 80 parts of nano-scale aluminum oxide, 35 to 40 parts of nanometer magnesia, 30 to 35 parts of nano titanium dioxide, 1 to 3 parts of boron nitride, 50 to 60 parts of silicon dioxide powder, 4 to 10 parts of methyl methacrylate-butadiene-styrene terpolymer, 3 to 8 parts of glass fiber, 0.8 to 1 part of stearic acid, 0.8 to 1 part of a macromolecular polymer fiber and 0.8 to 1 part of aminocellulose. The ceramic material is prepared by kneading the components to form catalyst mud, decaying the catalyst mud, extruding and forming the catalyst mud, forming a catalyst, drying a wet green body and calcining the wet green body. According to the low-temperature denitration and heat storage integrated catalytic type honeycomb ceramic material disclosed by the invention, the catalysis efficiency ofthe catalyst is improved, and the use cost of the catalyst is reduced; by the adding of the stearic acid, forming and demolding of the catalyst are facilitated, and the finished product ratio of catalyst manufacturing is increased. The preparation steps are simple; reaction conditions under a medium-temperature environment are mild; the cost is low.

Description

technical field [0001] The invention relates to a medium-temperature catalyst, in particular to a catalytic type honeycomb ceramic material integrated with low-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 co...

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, high low value of active temperature, low strength, and short service life; so that the scope of application is greatly limited. Therefore, we urgently need to study a new type of catalyst. Replace the above products

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