Wet method combined process for desulfurization and denitration for chlorine-containing strong oxidizer absorption liquid

A strong oxidant, desulfurization and denitrification technology, applied in the field of wet combined desulfurization and denitrification technology, can solve the problems of inconvenient operation, difficult to achieve, complicated formula, etc., and achieve the effects of low cost, low cost and simple process

Inactive Publication Date: 2008-02-06
ZHEJIANG TIANLAN ENVIRONMENTAL PROTECTION TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] The invention provides a wet-process combined desulfurization and denitrification process for a strong chlorine-containing oxidant absorbing liquid, which solves the problems of the existing wet-process combined desulfurization and denitrification technology, such as complex formula, inconvenient operation, and difficulty in achieving high removal efficiency of nitrogen oxides. Reduced cost of combined desulfurization and denitrification

Method used

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  • Wet method combined process for desulfurization and denitration for chlorine-containing strong oxidizer absorption liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Prepare 0.1% bleaching powder slurry as a highly active mixed absorption liquid for combined desulfurization and denitration, fully contact with the flue gas entering it in the bubbling reactor, and mix with NOx and SO in the flue gas 2 A chemical reaction occurs that removes the pollutants. The test results show that the nitrogen oxide removal efficiency of 60%-80% and the desulfurization efficiency of more than 90% can be achieved.

Embodiment 2

[0021] Prepare 5% bleaching powder slurry as a highly active mixed absorption liquid for combined desulfurization and denitrification, fully contact with the flue gas entering it in the bubbling reactor, and mix with NOx and SO in the flue gas 2 A chemical reaction occurs that removes the pollutants. The test results show that the nitrogen oxide removal efficiency of 70%-85% and the desulfurization efficiency of more than 95% can be achieved.

Embodiment 3

[0023] Prepare 15% bleaching powder slurry as a highly active mixed absorption liquid for combined desulfurization and denitrification, fully contact with the flue gas entering it in the bubble reactor, and mix with NOx and SO in the flue gas 2 A chemical reaction occurs that removes the pollutants. The test results show that the nitrogen oxide removal efficiency of 80%-95% and the desulfurization efficiency of more than 98% can be achieved.

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Abstract

The invention discloses a process for wet method simultaneous desulfurization and denitration by using chlorine-containing strong oxidizer absorption liquid, comprising: infusing flue gas to be processed into absorption reactor to fully contact with chlorine-containing strong oxidizer absorption liquid, absorbing NOx and SO2 in flue gas and discharging same. In the invention, the raw materials are easy to obtain, and the formulation of adsorption liquid is easy. For processed flue gas by the above process, removal efficiency of nitric oxides can be up to 60 to 95%, and the desulfurization efficiency can be up to more than 90%.

Description

technical field [0001] The invention relates to the technical field of air pollution control, in particular to a wet-process combined desulfurization and denitrification process using a chlorine-containing strong oxidant solution or slurry as an absorbing liquid in flue gas purification. Background technique [0002] At present, the problem of air pollution in my country is serious. The country has formulated increasingly stringent air pollutant discharge standards and strengthened the management of sewage charges. In order to protect human health and the ecological environment, desulfurization and denitrification of coal-fired flue gas has become an urgent task. [0003] Compared with the separate treatment technology of flue gas desulfurization and denitrification, the combined flue gas desulfurization and denitrification technology occupies a small area, is simple to operate, and saves costs. However, in the existing combined flue gas desulfurization and denitrification t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/60B01D53/78B01D53/14
CPCY02A50/20
Inventor 吴忠标黄艺莫建松赵伟荣程常杰
Owner ZHEJIANG TIANLAN ENVIRONMENTAL PROTECTION TECH
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