Flue gas desulfurization regeneration integrated tower and flue gas desulfurization method

A flue gas and integrated technology, applied in separation methods, gas treatment, chemical instruments and methods, etc., can solve problems such as waste of water resources, and achieve the effects of lower exhaust gas temperature, lower load, and lower water volatilization

Active Publication Date: 2021-07-09
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, a large amount of water vapor is directly discharged into the atmosphere from the chimney, causing a waste of water resources

Method used

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  • Flue gas desulfurization regeneration integrated tower and flue gas desulfurization method
  • Flue gas desulfurization regeneration integrated tower and flue gas desulfurization method
  • Flue gas desulfurization regeneration integrated tower and flue gas desulfurization method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] Flue gas desulfurization and regeneration integrated tower, from top to bottom are flue gas discharge area 1, defogging area 3, secondary spraying area 5, liquid holding tank area 6, primary spraying area 7, quenching and cooling area 33 and absorption The liquid regeneration area 8; the flue gas discharge area 1 and the demisting area 3 are preferably connected by a cone-shaped diameter 2, and the tower diameter ratio between the demisting area 3 and the flue gas discharge area 1 is 2.5~5; the demisting area 3 and the secondary The spray zone 5 is preferably connected by an inverted cone-shaped variable diameter 4, and the tower diameter ratio between the demister zone 3 and the secondary spray zone 5 is 1.5; the quenching cooling zone 33 and the absorption liquid regeneration zone 8 are preferably connected by a conical variable diameter 18 , The tower diameter ratio between the absorption liquid regeneration zone 8 and the rapid cooling cooling zone 33 is 1.5.

[007...

Embodiment 2

[0096] As a comparison, the flue gas desulfurization tower is not provided with an outer sleeve 32, and the rest is the same as that of Example 1, and the length of the "white smoke" at the chimney mouth is 60m.

Embodiment 3

[0098] As a comparison, close the valve on the clean water pipeline entering the rapid cooling cooling zone 33, and adjust the clean water flow to 0m 3 / h, all the other are the same as embodiment 1, and the content of soluble salt in the flue gas that enters chimney is 12.6mg / Nm 3 .

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Abstract

The invention discloses a flue gas desulfurization regeneration integrated tower and a flue gas desulfurization method. Flue gas desulfurization and regeneration integrated tower, including flue gas discharge area, demisting area, secondary spraying area, liquid holding tank area, primary spraying area, rapid cooling cooling area and absorption liquid regeneration area; the absorption liquid regeneration area passes through the vertical Partition I, Partition II and Partition III are divided into preheating zone, stripping zone and liquid collecting zone from left to right. The preheating zone is connected with the primary spraying zone. It communicates with the stripping area, the height of the partition II is lower than the height of the partition I, the stripping area and the liquid collection area are connected through the space above the partition II, and the stripping area and the top of the liquid collection area are separated by the partition III The area and the liquid collection area are completely separated from the spray area; the preheating area is equipped with a heat exchange tube group, and the flue gas enters the tower through the heat exchange tube group; the top of the chimney where the flue gas discharge area is set is equipped with an outer sleeve. The invention realizes SO in the flue gas 2 Recycling and deep defogging, short process flow, less equipment, low operating costs, have broad application prospects.

Description

technical field [0001] The invention belongs to the field of industrial waste gas purification, and relates to a flue gas desulfurization regeneration integrated tower and a flue gas desulfurization method. Background technique [0002] As we all know, sulfur dioxide is one of the main pollutants in the air, and it is the "culprit" that causes acid rain. According to the "2016 Environmental Bulletin" published by the Ministry of Environmental Protection of my country, 747 cities (districts and counties) in China have carried out precipitation monitoring. The proportion of cities with acid rain is 19.8%, the frequency of acid rain is 17.2% on average, and the area of ​​acid rain area is about 690,000 square thousand. meters, accounting for 7.2% of the country’s land grade. The areas of relatively heavy acid rain and heavy acid rain accounted for 1.0% and 0.03% of the country’s land area respectively. The overall type of acid rain is still sulfuric acid, and acid rain pollution...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/18B01D53/14B01D53/00
CPCB01D53/002B01D53/1406B01D53/1425B01D53/1481B01D53/18B01D2257/80B01D2258/0283
Inventor 刘忠生李磊李欣王明星王昊辰韩天竹
Owner CHINA PETROLEUM & CHEM CORP
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