Microwave flue gas desulfurization and denitration method and apparatus

A technology for desulfurization, denitrification, and microwave devices, which is applied in separation methods, chemical instruments and methods, and dispersed particle separation, can solve problems such as reactor corrosion and insufficient use of energy, and achieve low operating costs, reduced losses, and reduced corrosion. sexual effect

Inactive Publication Date: 2003-11-12
张合璧
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In order to overcome the shortcomings of reactor corrosion and insufficient energy utilization caused by wet and semi-dry methods in the existing flue gas desulfurization a...

Method used

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  • Microwave flue gas desulfurization and denitration method and apparatus
  • Microwave flue gas desulfurization and denitration method and apparatus
  • Microwave flue gas desulfurization and denitration method and apparatus

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Embodiment 1

[0035] Figure 1 is A schematic process flow diagram of Embodiment 1 of the present invention.

[0036] Figure 1, the coal-fired flue gas from the combustion furnace (1), after most of the solid particles are sucked by the electrostatic vacuum cleaner (2), is compressed into the reactor (3) through the compressor, and at the same time, the power measuring instrument ( 45) The microwave energy after measuring and adjusting the peak power, pulse width, and duty ratio also enters the reactor (3), and the reactor (3) is equipped with an adsorption sensitizer, which is Ni, FeO or MnO 2 Spherical or cylindrical particles of nanomaterials, etc., are used as adsorption sensitizers, whose function is to focus microwave energy onto the surface of the adsorbent, and reach a high temperature of more than 1000 degrees at several sensitive points on the surface of the adsorbent, so that the microwave device ( 4) Most of the energy (about 80%) entering the reactor (3) is concentrated on th...

Embodiment 2

[0057] The microwave device used in embodiment 2 is the same as that in embodiment 1. Embodiment 2 is characterized in that the adsorption sensitizer reaction layer is not provided in the reactor (3), and instead, NH is passed into the reactor (3). 3 Gas and water vapor react to form reaction products. The remaining steps of the microwave flue gas desulfurization and denitrification method are the same as

[0058] Example 1,

[0059] Figure 6 isA schematic process flow diagram of Embodiment 2 of the present invention.

[0060] Figure 6 , combustion furnace (1), dust collector (2), humidification tower (27), water vapor (28), ammonia addition system (29), gas compressor, reactor (3), collector (5), gas compressor , the combustion furnace (1) is connected in series through pipelines, and the reactor (3), collector (7), gas compressor, and flue (9) are connected in sequence by pipelines, and the water vapor (28) provides water vapor to the humidifying tower (27) , Ammonif...

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PUM

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Abstract

The invention provides a microwave smoke desulfurizing and denitrating method and the device. After the smoke is compressed, the smoke enters into the reactor which is mixed with adsorptive sensitizing agent reaction layer; it supplies microwave through the microwave device; the sulfur dioxide and nitrogen-oxygen compound reacts on the surface of the absorptive sensitizing agent in microwave environment and gets the resultant. The comprises direct current power, modulating power, stage-gathering magnetism circle pipe, connection matching and adjusting system, power measurer. The invention uses microwave energy and absorptive sensitizing agent fully, the effect is prominent; the energy utilization rate is high. The operation cost is decreased, and erosion of equipment is decreased.

Description

1. Technical field [0001] The invention belongs to the field of industrial waste gas treatment, and in particular relates to a microwave flue gas desulfurization and denitrification method and device. 2. Background technology [0002] Among the many existing flue gas desulfurization methods, they can be divided into two categories: dry method and wet method. At present, most of them use wet method, because sulfur dioxide SO 2 It is an acid gas, which dissolves in water to form an acid. The main reaction of the wet method is acid-base neutralization, including lime gypsum method, magnesium, sodium alkali or salt neutralization method, ammonia water or ammonia gas neutralization method, etc., but it is easy to corrode. container. In recent years, an electron beam sulfur ammonia method has been developed, which uses alkaline ammonia to neutralize the acid formed by dissolving acid gas in water vapor, and produces ammonium sulfate as a by-product, so it is still a wet method. ...

Claims

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Application Information

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IPC IPC(8): B01D53/00B01D53/81
Inventor 张合璧
Owner 张合璧
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