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Flue gas desulfurization regeneration integrated tower and renewable wet 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, achieve the effects of lower exhaust gas temperature, lower load, and higher flow rate

Active Publication Date: 2020-12-08
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 renewable wet flue gas desulfurization method
  • Flue gas desulfurization regeneration integrated tower and renewable wet flue gas desulfurization method
  • Flue gas desulfurization regeneration integrated tower and renewable wet flue gas desulfurization method

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Effect test

Embodiment

[0068] Flue gas desulfurization and regeneration integrated tower, from top to bottom are flue gas discharge area 1, demister area 3, secondary spray area 5, liquid holding tank area 6, primary spray area 7 and absorption liquid regeneration area 8; The flue gas discharge area 1 and the demister area 3 are preferably connected by a cone-shaped diameter 2, and the tower diameter ratio between the demist area 3 and the flue gas discharge area 1 is 2.5~5; the demist area 3 and the secondary spray area 5 are preferably The tower diameter ratio between the demisting zone 3 and the secondary spraying zone 5 is 1.5; the primary spraying zone 7 and the absorption liquid regeneration zone 8 are preferably connected by a cone-shaped variable diameter 18, and the absorption liquid The tower diameter ratio between the regeneration zone 8 and the primary spray zone 7 is 1.5.

[0069] The absorption liquid regeneration zone 8 is followed by the preheating zone 9, the stripping zone 10 and t...

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Abstract

The invention discloses a flue gas desulfurization and regeneration integrated tower and a renewable wet-process flue gas desulfurization method. The flue gas desulfurization and regeneration integrated tower comprises a flue gas emission area, a demisting area, a secondary spraying area, a liquid containing cell area, a primary spraying area and an absorbing liquid regeneration area sequentiallyfrom top to bottom, the absorbing liquid regeneration area is divided into a preheating area, a steam stripping area and a liquid collecting area sequentially from left to right through a vertical partition I, a partition II and a partition III, the preheating area is communicated with the primary spraying area, an opening at the bottom of the partition I enables the preheating area to be communicated with the steam stripping area, height of the partition II is lower than that of the partition I, the steam stripping area is communicated with the liquid collecting area through space on the upper portion of the partition II, and the steam stripping area and the top of the liquid collecting area completely separate the steam stripping area and the liquid collecting area from the spraying areas through the partition III; a heat exchange tube group is arranged in the preheating area, flue gas enters the tower from the heat exchange tube group, and an outer sleeve is arranged at the top of achimney of the flue gas emission area. The tower realizes recycling of SO2 in flue gas and in-depth demisting, is short in technological process, little in equipment and low in operation expense andhas wide application prospect.

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 regenerable wet 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 "2015 Environmental Bulletin" issued by the Ministry of Environmental Protection of my country, the precipitation monitoring results of 480 cities (districts and counties) in China show that the average frequency of acid rain is 14.0%, the proportion of cities with acid rain is 40.4%, and the frequency of acid rain is more than 25%. 20.8% of the cities, 12.7% of the cities with the frequency of acid rain above 50%, 5.0% of the cities with the frequency of acid rain above 75%; Type The overall type is still sulfuric acid type. [0003] Environmental pollution is becoming more and more serious,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/50B01D53/75B01D53/78B01D53/96B01D45/08
CPCB01D45/08B01D53/343B01D53/504B01D53/75B01D53/96B01D2251/304B01D2251/604B01D2258/0283B01D2259/124
Inventor 何佳李欣李磊王晶王昊辰韩天竹金平王海波
Owner CHINA PETROLEUM & CHEM CORP
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