Novel catalytic denitration apparatus and technology aiming at coke oven flue gas

A flue gas and denitration technology, applied in the field of coke oven flue gas purification, can solve the problem of high energy consumption, achieve the effects of long chemical life, low reaction temperature requirements and high denitration efficiency

Inactive Publication Date: 2019-05-03
XIAN MEIZHILV INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] temperature, equipped with a heating furnace, high energy consumption

Method used

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  • Novel catalytic denitration apparatus and technology aiming at coke oven flue gas
  • Novel catalytic denitration apparatus and technology aiming at coke oven flue gas
  • Novel catalytic denitration apparatus and technology aiming at coke oven flue gas

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Embodiment Construction

[0037] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0038] The catalytic denitrification device is equipped behind the discharge port of the coke oven flue gas, and the new catalytic denitrification device is equipped after the dry denitrification. Connected oxidation tower;

[0039] The oxidation tower is also connected to the ammonia injection grid AIG through pipelines, and the ammonia injection grid AIG is connected to the mixer, the first flue gas inlet 1 of the denitrification tower and the second flue gas inlet 2 of the denitrification tower respectively through pipelines Pass;

[0040] The mixer is also communicated with the evaporator and the heater respectively through pipelines;

[0041] The evaporator is also communicated with a pipeline provided with a pump, and the heater is also communicated with a pipeline provided with a fan.

[0042] The oxidation tower is used to oxidize the flue ga...

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Abstract

A novel catalytic denitration apparatus and technology aiming at coke oven flue gas, relating to the field of coke oven flue gas purification. By means of the denitration principle of NH3-SCR, a nanomulti-metal catalyst is used as a denitration catalyst with assistance of an ammonia removal catalyst, thus achieving integration of denitration and ammonia removal. The key of the technology is the catalyst, which is a real low-temperature catalyst, reaction temperature zone being 80-140 DEG C. The catalyst is free of a heating furnace and a flue gas heat exchanger, thus greatly reducing investment and operation cost.

Description

technical field [0001] The invention relates to the technical field of coke oven flue gas purification, in particular to a novel catalytic denitrification device and process for coke oven flue gas, that is, through the catalytic denitrification system and process, it is suitable for flue gas denitrification and removes nitration in flue gas. NOx, generating N which is non-polluting to the environment 2 and H 2 0. Background technique [0002] Coke oven is one of the most serious air pollution equipment in the metallurgical industry. The components of pollutants emitted by coke ovens are complex, including nitrogen oxides (NOx), sulfur dioxide, carbon monoxide, carbon dioxide, hydrogen sulfide, hydrogen cyanide, residual ammonia, phenol, coal dust, tar, etc. These pollutants have aggravated the smog degree of pollution. [0003] In recent years, smog has frequently appeared in most parts of our country. The country has paid more and more attention to environmental protect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/86B01D53/56
Inventor 不公告发明人
Owner XIAN MEIZHILV INFORMATION TECH CO LTD
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