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Novel process low temperature denitration reaction system

A reaction system and low-temperature denitrification technology, which is applied in the field of waste incineration power generation flue gas treatment system, can solve the problems that cannot meet the growing needs of waste incineration power generation, and achieve the effect of increasing the contact area and improving the denitrification efficiency

Inactive Publication Date: 2019-10-29
光大环保能源(杭州)有限公司
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AI Technical Summary

Problems solved by technology

It can be seen that the existing SNCR denitrification system has been unable to meet the growing needs of waste incineration power generation

Method used

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  • Novel process low temperature denitration reaction system

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Embodiment Construction

[0014] The present invention will now be described in further detail in conjunction with the accompanying drawings.

[0015] Such as figure 1 As shown, a new process low-temperature denitration reaction system includes a denitration reaction system body, and the denitration reaction system body includes a flue gas pipeline 1, and a steam heater installed on the flue gas pipeline 1 for further heating flue gas and reducing agent 2 and an SCR reactor 3 arranged on the flue gas pipeline 1 for reducing and denitrifying the heated flue gas, the flue gas pipeline 1 is provided with an inlet baffle door 4 near the entrance of the steam heater 2 , the flue gas pipeline 1 is provided with a gas outlet baffle door 5 near the gas outlet of the SCR reactor 3, and the flue gas pipeline 1 is provided with a steam heater 2 and a bypass valve connected in parallel with the SCR reactor 3. The bypass pipeline is provided with a bypass baffle door 6, and the SCR reactor 3 is fixed with a reduct...

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Abstract

The invention discloses a novel process low temperature denitration reaction system which comprises a denitration reaction system body. The denitration reaction system body comprises a flue gas pipeline, a steam heater disposed on the flue gas pipeline for further heating flue gas and a reducing agent, an SCR reactor disposed on the flue gas pipeline for performing a reductive denitration reactionon the heated flue gas, wherein an inlet baffle door is disposed on an inlet position, near the steam heater, of the flue gas pipeline, and an air outlet baffle door is disposed at an outlet position, near the SCR reactor, of the flue gas pipeline; a bypass pipeline connected in parallel with the steam heater and the SCR reactor is arranged on the flue gas pipeline, and the bypass pipeline is provided with a bypass baffle door; and a reducing catalyst is fixedly arranged in the SCR reactor, and the reducing catalyst adopts a modular granular catalyst or a honeycomb catalyst. The denitration reaction efficiency is high, the effective period is long, smoke resistance is low, and the trend of increasingly strict requirements for NOX emissions can be met.

Description

technical field [0001] The invention relates to a waste incineration power generation flue gas treatment system, in particular to a low-temperature denitrification reaction system of a new process. Background technique [0002] At present, the research and development of waste incineration power generation and denitrification systems in the existing technology generally start from SNCR, and adjust the NO X emissions. However, its limitations are very large, and NO X The emissions are reduced to 80-90mg / NM3. According to the successful experience in Europe, if further optimized and upgraded to the SNCR ammonia injection system controlled by the acoustic wave temperature field, the NO X Reduced to the limit, about 60mg / NM3. However, with the increasingly stringent environmental protection policies, relevant national environmental protection departments and local governments are concerned about NO X Emission requirements are becoming more and more stringent, and even explic...

Claims

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Application Information

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IPC IPC(8): B01D53/86B01D53/56
CPCB01D53/8625
Inventor 熊建平余坤嵛何建波高峰朱勇敢
Owner 光大环保能源(杭州)有限公司
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