Low temperature denitration reactor

A denitration reactor and low temperature denitration technology, applied in the field of low temperature flue gas denitrification, can solve the problems of shortening, catalyst poisoning service life, and high active temperature window, and achieve the effects of prolonging service life, simple process and convenient operation.

Active Publication Date: 2015-09-23
CHENGDU GUOHUA ENVIRONMENTAL TECH
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Problems solved by technology

However, its active temperature window is relatively high (320-420°C), and dust and SO 2 It is easy to cause catalyst poisoning and shorten the service life

Method used

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  • Low temperature denitration reactor

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with accompanying drawing.

[0011] Such as figure 1 shown. The present invention comprises a rectangular parallelepiped denitrification reactor main body installed vertically, a horizontal flue gas inlet 1 is arranged on the lower side, and a horizontal flue gas outlet 8 connected to the upper port of the denitrification reactor main body is arranged on the upper side. A regeneration liquid outlet 7 is provided. The main body of the denitration reactor is equipped with a spraying device 5, a spare denitration catalyst packing grid frame, a spraying device 5, a second denitration catalyst packing grid frame, a spraying device 5, and a first denitration catalyst packing grid from top to bottom. Frame, spraying device 5 and pretreatment packing grid frame, the second denitration catalyst packing grid frame, the first denitration catalyst packing grid frame and the denitration reactor main body wall abo...

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Abstract

The invention discloses a low temperature denitration reactor, belonging to the technical field of low temperature flue gas denitration. The invention is mainly to provide the denitration reactor for low temperature denitration technology by a new catalysis method. The reactor is characterized by comprising a vertically installed cuboid-shaped denitration reactor main body, wherein a horizontal flue gas inlet is arranged in the side lower part of the main body, a horizontal flue gas outlet is arranged in the side upper part, and a renewable liquid outlet is arranged at the bottom; a second denitration catalyst packing grid frame, a first denitration catalyst packing grid frame and a preprocessing packing grid frame are arranged inside a main body from top to bottom; a spraying device is arranged above the second and first denitration catalyst packing grid frames and the preprocessing packing grid frame; and a manhole is arranged at the upper side wall of the main body. The reactor integrates flue gas pretreatment, denitration main reaction and catalyst regeneration, has the advantages of convenient operation and small occupied area, and is mainly used for flue gas treatment by using a low-temperature denitration catalyst.

Description

technical field [0001] The invention belongs to the technical field of low-temperature flue gas denitrification, and in particular relates to a low-temperature denitrification reactor based on a novel catalytic low-temperature denitrification technology. Background technique [0002] At present, there are many methods for purifying nitrogen oxides in flue gas and other exhaust gases. Among them, the most widely used method is the selective catalytic reduction (SCR) method that uses catalysts to promote NOx reduction reaction. This process system is relatively simple and occupies a small area. , Does not produce or rarely produces harmful by-products, and is used by most power plant boilers. However, its active temperature window is relatively high (320-420°C), and dust and SO 2 It is easy to cause catalyst poisoning and shorten service life. The new catalytic low-temperature denitrification technology uses activated carbon as a carrier to prepare a low-temperature denitrif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/86B01D53/90B01D53/56B01D53/50B01D46/00
Inventor 李刚韩文静李月丽岑望来
Owner CHENGDU GUOHUA ENVIRONMENTAL TECH
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