Manganese-based denitration catalyst containing tourmaline and preparation method of manganese-based denitration catalyst

The technology of denitration catalyst and tourmaline is applied in the field of low temperature flue gas denitration, which can solve the problems of large specific surface area, low sulfur resistance and water resistance, and achieves simple preparation process, reduced catalyst cost, and high resistance to SO2 and H2O poisoning performance. Effect
CN107051572AInactive Publication Date: 2017-08-18HEBEI UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEBEI UNIV OF TECH
Publication Date
2017-08-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a manganese-based denitration catalyst containing tourmaline. The manganese-based denitration catalyst comprises a carrier, an auxiliary and active components, wherein the carrier is KIT-6 mesoporous molecular sieves, the auxiliary is the tourmaline, and the active components are manganese salt and cobalt salt; the loading capacity of manganese is 5-20%, the loading capacity of cobalt is 1-10%, and the mole ratio of the manganese to the cobalt is (1.0-3.0):1; the loading capacity of the tourmaline is 0.1-1%. The manganese-based denitration catalyst is prepared by an equivalent-volume impregnation method. The manganese-based denitration catalyst and the preparation method thereof have the advantages that natural ore is used, catalyst cost can be lowered favorably, the preparation process is simple, and the prepared catalyst has high NO removing efficiency at low temperature and excellent SO2 and H2O poisoning resistance.
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Description

technical field

[0001] This paper relates to the field of low-temperature flue gas denitrification, specifically for NH 3 A tourmaline-containing manganese-based low-temperature denitrification catalyst with high sulfur and water resistance performance and a preparation method thereof for selective catalytic reduction of NO. Background technique

[0002] Nitrogen oxides (NO x ) is a common air pollutant whose main components are NO and NO 2 and a small amount of N 2 O. Mainly from mobile sources such as motor vehicles, and NOx emissions from thermal power plants, cement industry, domestic and other industries x About 50 million tons. At present, the rapid deterioration of the environment and the frequent occurrence of regional smog have made China's governance NO x Pollution is imminent.

[0003] The denitrification technology for industrial application is mainly selective catalytic reduction (SCR) denitrification technology. Among them, the core of SCR technology is...

Claims

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