Optimized indirect catalytic combustion flue gas multistage heat exchange system and process

A catalytic incineration and heat exchange system technology, applied in incinerators, combustion methods, gas treatment, etc., can solve the problems of increasing system processing gas volume, reducing catalyst life, affecting catalyst activity, etc., achieving a high degree of integration and heat exchange area The effect of minimizing and saving floor space

Active Publication Date: 2018-03-23
南京宜热纵联环保科技溧阳有限公司
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Problems solved by technology

Firstly, the sulfur dioxide contained in the combustion of high-sulfur industrial natural gas will react with the metal ions in the catalyst, leading to a certain degree of poisoning of the catalyst and reducing the life of the catalyst; secondly, some studies have shown that the water v

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  • Optimized indirect catalytic combustion flue gas multistage heat exchange system and process
  • Optimized indirect catalytic combustion flue gas multistage heat exchange system and process
  • Optimized indirect catalytic combustion flue gas multistage heat exchange system and process

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Embodiment Construction

[0031] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] Such as figure 1As shown, an optimized indirect catalytic incineration flue gas multi-stage heat exchange system mainly includes a catalytic bed 7, a natural gas burner 8, a heat exchanger 5, an adsorption runner, an adsorption fan 4, a smoke exhaust fan 9 and Desorption fan 6. The heat exchanger 5 includes four-stage heat exchange units, which are respectively a first-stage heat exchange unit 501, a second-stage heat exchange unit 502, a third-stage heat exchange unit 503, and a fourth-stage heat exchange unit 504. The first-stage heat exchange unit 501 and the third-stage heat exchange unit 503 communicate with each other, the cold side outlet of the first-stage heat exchange unit 501 is used as the concentrated waste gas outlet, and the cold-side inlet of the third-stage heat exchange unit 503 is used as the concentrated waste gas ...

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Abstract

The invention discloses an optimized indirect catalytic combustion flue gas multistage heat exchange system and process. The system comprises a catalyst bed, a natural gas combustor, a heat exchanger,an adsorption rotating wheel, an adsorption fan, a smoke exhaust fan and a desorption fan, wherein the heat exchanger is provided with four stages of heat exchange units according to a low and high-temperature level matching principle; the adsorption rotating wheel comprises an adsorption region, a purging region and a desorption region; another natural gas inlet and a combustor are arranged outside the catalyst bed; a pipeline of natural gas flue gas produced by combustion is communicated with a catalytic combustion waste gas pipeline to form a heat-side medium pipeline; after the natural gas flue gas and catalytic combustion flue gas are mixed, mixed gas enters the heat exchanger; concentrated waste gas and desorbed gas are respectively heated by the internal four stages of heat exchange units; after heat is recycled, the gas is discharged into a chimney. By use of a fine design of internal heat transfer units, a heat exchange process of fluid in the heat exchanger is optimized, andminimization of a heat exchange area is realized; and meanwhile, the life of a catalyst can be prolonged, and the system purification efficiency is improved.

Description

technical field [0001] The invention relates to an optimized indirect catalytic combustion flue gas multi-stage heat exchange system and process, which is especially suitable for the catalytic combustion process of low-concentration organic waste gas. Background technique [0002] With the continuous development and progress of the human industrial economy, the environmental problems caused by various waste gases generated in the industrial production process are increasing. Therefore, how to control industrial waste gas has become a problem that must be paid attention to in modern industrial production. Common treatment methods for industrial organic waste gas include thermal incineration, regenerative thermal incineration and catalytic incineration. Among them, catalytic incineration has been widely used because of its low light-off temperature, high treatment efficiency, and low energy consumption. [0003] An important step in the catalytic incineration system process i...

Claims

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Application Information

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IPC IPC(8): F23G7/07F23G5/44F23J15/06B01D53/06
CPCB01D53/06F23G5/44F23G7/07F23J15/06B01D2257/70Y02E20/30
Inventor 张锦涛钱荣忠朱国富黄斌莫立勤
Owner 南京宜热纵联环保科技溧阳有限公司
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