Coal ash and attapulgite compound SCR denitration catalyst and preparation method thereof

A denitration catalyst and attapulgite technology are applied in the field of fly ash-attapulgite composite SCR denitration catalyst and its preparation, which can solve the problems of large catalyst loss and serious high temperature ablation of activated carbon, and achieve low utilization rate and strong adsorption. The effect of performance, good environmental benefits
CN102000564AInactive Publication Date: 2011-04-06HEFEI UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEFEI UNIV OF TECH
Publication Date
2011-04-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a coal ash and attapulgite compound SCR denitration catalyst and a preparation method thereof. Coal ash and attapulgite compound are used as catalyst carriers for carrying the compound material of manganese oxide. The preparation method comprises the following steps: mixing the coal ash with the attapulgite, making the mixture into coal ash and attapulgite compound catalyst carrier by scoring, molding, drying and burning, using the isopyknic immersion method to carry the compound carrier on the catalyst precursor, drying and burning so as to acquire the finished product. In the invention, the coal ash and the attapulgite cheaply obtained are used as the catalyst carriers, so the cost of the catalyst and the environmental loading of the catalyst are reduced, the mouldability and the heat stability are better, and the low-temperature activity of the catalyst is better because of the loading of manganese active component.
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Description

1. Technical field

[0001] The invention relates to the nitrogen oxide treatment of coal-burning flue gas in the technical field of environmental protection, in particular to a fly ash-attapulgite composite SCR denitrification catalyst and a preparation method thereof. 2. Background technology

[0002] my country is a big coal-fired country, and coal-fired power plants produce a lot of dust, SOx, NOx and harmful metal elements in the production process. Nitrogen oxides (NOx) emitted in flue gas are more harmful to the environment than sulfides. NOx in the atmosphere can cause acid rain, photochemical smog, eutrophication of surface water, etc., which damage the ecological environment and endanger human health. . The control of NOx emissions in the atmosphere has attracted global attention, and it is also a key and difficult point in my country's current atmospheric environmental protection. Therefore, the treatment of NOx is particularly important. At present, the control m...

Claims

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