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Denitration and CO generation integration technology, and device therefor

A process and equipment technology, which is applied in the field of integrated process and equipment for secondary denitrification and CO generation, can solve the problems of short service life of catalysts, pollution transfer, etc., and achieve the goal of maintaining system pressure drop, continuous feeding, and avoiding pressure loss Effect

Inactive Publication Date: 2018-11-30
SHANDONG UNIV
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Problems solved by technology

① The service life of the catalyst is relatively short, and generally needs to be replaced in about 3 years. The regeneration technology of the catalyst after replacement needs to be explored. The annual cost of replacing the catalyst for a 600,000-kilowatt unit is as high as 10 million yuan
Otherwise, it will cause pollution transfer

Method used

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  • Denitration and CO generation integration technology, and device therefor
  • Denitration and CO generation integration technology, and device therefor
  • Denitration and CO generation integration technology, and device therefor

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Embodiment Construction

[0021] It should be pointed out that the following detailed description is exemplary and is intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0022] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0023] The decoupling denitrification reactor mentioned in this application means that the reactor is divided...

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Abstract

The invention discloses a denitration and CO generation integration technology, and a device therefor. A denitration reducing agent used in the integration technology is a mixture of semi-coke and iron powder, a gas discharged from the reducing agent outlet of a denitration reactor undergoes a redox reaction under the action of the denitration reducing agent to make nitrogen oxides in the gas discharged from the reducing agent outlet of the denitration reactor reduced into nitrogen and the semi-coke oxidized into carbon monoxide, and the generated carbon monoxide is used as a reducing gas source for the denitration reactor. The technology and the device can remove the nitrogen oxides discharged from the denitration reactor, and can provide CO as the reducing gas source for the denitrationreactor.

Description

technical field [0001] The invention relates to the technical field of coal-burning pollutant treatment, in particular to an integrated process and equipment for secondary denitrification and CO generation in an adsorption reduction decoupling denitrification process. Background technique [0002] Nitrogen oxides are one of the main pollutants of current air pollution. Coal-fired power plants are the main pollution source of nitrogen oxide emissions. In the flue gas emitted by them, the treatment of nitrogen oxides has become an essential environmental protection facility for coal-fired power plants. At present, ammonia denitrification (NH 3 -SCR), this technology has high denitration efficiency, is mature and reliable, and has strong adaptability. It is especially suitable for coal-fired units in areas with variable coal quality, frequent unit load changes and sensitive air quality requirements. However, ammonia denitrification also has certain disadvantages. The reactivi...

Claims

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Application Information

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IPC IPC(8): B01D53/56B01D53/76C01B32/40
CPCB01D53/56B01D53/76B01D2251/204B01D2258/0283C01B32/40
Inventor 程星星王修平王志强马春元
Owner SHANDONG UNIV
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