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Oxidization method and device of ammonia desulfurization solution

一种氨法脱硫、溶液的技术，应用在化学仪器和方法、氨化合物、分离方法等方向，能够解决低运行成本、不能达到氧化效果氨回收率气溶胶、不能实现氧化装置低投资等问题

Inactive Publication Date: 2019-10-25
JIANGSU NEW CENTURY JIANGNAN ENVIRONMENTAL PROTECTION
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] In the known prior art, the key to the ammonia desulfurization and oxidation technology has not been fully grasped, it is difficult or even impossible to achieve low investment and low operating cost of the oxidation device, it is difficult or even impossible to achieve the best oxidation effect and ensure the recovery rate of ammonia and control aerosol generation

Method used

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  • Oxidization method and device of ammonia desulfurization solution

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Embodiment Construction

[0048] in such as figure 1 In the shown device for oxidizing the absorbing liquid in ammonia-based desulfurization, low-cost pressurized air can be used as the oxidation air during the oxidation process, and multi-stage air distribution is used to forcibly oxidize the absorbing liquid to achieve absorption The multi-stage circulation of liquid and oxidizing air achieves the purpose of high-efficiency and low-cost oxidation.

[0049] Such as figure 1 The shown device comprises an oxidation air system 13 and an oxidation tower 1. The oxidation tower 1 includes a tower body, an oxidation chamber is formed in the tower body, and the tower body is provided with an oxidation chamber absorption liquid inlet 4, an oxidation liquid outlet 10, an oxidation air Inlet 9 and outlet 5 for oxidation air.

[0050] Four layers of gas-liquid dispersion intensifiers 2 are arranged in the oxidation tower 1 . The form of the gas-liquid dispersion intensifier 2 is 2 layers of perforated plates +...

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Abstract

The invention relates to a method and device for oxidizing an ammonia desulfurization absorption solution in an oxidation tower. The absorption solution is conveyed to the oxidation tower from an ammonia desulfurization absorption tower, an oxidation solution is conveyed to the ammonia desulfurization absorption tower from the oxidation tower, and thus multistage circulating of the absorption solution is achieved; and in the process of oxidation in the oxidation tower, pressurized air is used as oxidation air, multistage air distribution is adopted, the absorption solution is subjected to forced oxidation so as to lower the investment and operation costs, and generation of aerosol in the ammonia desulfurization process is controlled.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a method and a device for oxidizing an ammonia-based desulfurization solution. The invention also relates to a method of operating such a device. Background technique [0002] All countries in the world emit sulfur dioxide to varying degrees, and China has a large amount of sulfur dioxide emissions, which has a certain impact on the environment and society. In addition to causing economic losses, the emitted sulfur dioxide also seriously affects the ecological environment and people's health. [0003] At present, there are hundreds of relatively mature desulfurization technologies, among which the wet desulfurization process is the most widely used, accounting for about 85% of the world's total installed desulfurization capacity. Common wet flue gas desulfurization technologies include limestone-gypsum method, double alkali method, sodium carbonate ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/96B01D53/78B01D53/50
CPCB01D53/504B01D53/77B01D53/78C01C1/247B01D2251/2062B01D2258/0283B01D53/96B01D53/502B01D2251/102Y02A50/20B01D53/1418B01D53/1481B01D53/50B01D2252/102B01D53/1493
Inventor 罗静祁丽昉罗勇迎
Owner JIANGSU NEW CENTURY JIANGNAN ENVIRONMENTAL PROTECTION