Denitration catalyst taking modified activated carbon as base material and preparation method of denitration catalyst

A technology of denitrification catalyst and base material, applied in the field of denitrification catalyst and its preparation, can solve the problems of low plasticity of activated carbon and difficult to overcome, and achieve the effects of improving catalytic activity, reducing cost input, and widening the use temperature range

Inactive Publication Date: 2016-12-07
无锡市华东电力设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the requirements of the preparation process, activated carbon, as a material with low plasticity, has always been a difficult problem to overcome when it is molded by an extruder.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] To prepare modified activated carbon, 10% by weight of potassium hydroxide solution was used as an activator, and ethanolamine was used as a dispersant, and the amount of ethanolamine added was 1% of the weight of the activator potassium hydroxide solution. Put the activated carbon into the above solution, soak for 2 hours, and activate it in an electric furnace protected by nitrogen gas. The activation temperature is 650°C, and the activation time is 4 hours. After the activation, the desired pre-modified activated carbon is obtained. The pre-modified activated carbon is modified twice with ferrous nitrate solution of 5% by weight to obtain modified activated carbon, and the activated carbon is put into the solution of the secondary activator, soaked for 4 hours, and activated in an electric furnace protected by nitrogen gas. The temperature is 450°C, and the activation time is 2 hours. After the activation, the desired modified activated carbon is obtained.

[0017] D...

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Abstract

The invention provides a denitration catalyst with modified activated carbon as a base material and a preparation method thereof. The denitration catalyst is prepared through the following steps: preparing activated carbon sludge, preparing activated carbon sludge, drying the sludge and end surface hardening treatment. The denitrification catalyst of the present invention treats simulated thermal power plant flue gas purification tests and shows that it has a very high removal rate for harmful gases of nitrogen oxides.

Description

technical field [0001] The invention relates to the field of purification of polluted air, in particular to a denitration catalyst using modified activated carbon as a base material and a preparation method thereof. Background technique [0002] Nitrogen oxides are the main pollution source of the atmosphere. It not only causes acid rain, photochemical smog and other problems that damage the earth's ecological environment, but also seriously endangers human health. Therefore, how to effectively remove nitrogen oxides has become an important topic of concern in the field of environmental protection. Ammonia Selective Catalytic Reduction has become the mainstream denitrification technology for stationary sources such as thermal power plants due to its maturity and high efficiency, and its core problem lies in the development of catalysts. At present, scholars at home and abroad have conducted in-depth and systematic research on many catalyst systems, such as V2O5-WO3 / TiO2 and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/38B01D53/86B01D53/56
CPCB01J31/38B01D53/565B01D53/8628B01D2258/06
Inventor 丁建峰
Owner 无锡市华东电力设备有限公司
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