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Desulfurization denitration composition, preparation method and application thereof

A desulfurization and denitrification, composition technology, applied in the direction of silicon compounds, separation methods, chemical instruments and methods, etc., can solve the problems of high operating cost, low combined efficiency, high single efficiency, etc., and achieve low operating cost, stable operation, and improved efficiency Effect

Active Publication Date: 2012-12-26
ZHONGJING ENVIRONMENTAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Due to the current foreign joint or integrated desulfurization and denitrification technologies have disadvantages such as complex process, large floor area, high operating cost, high single efficiency and low combined efficiency, so the development and operation are simple, low operating cost, high efficiency, stable system and simultaneous desulfurization and denitrification Technology has become one of the important directions for the research and development of coal-fired flue gas purification technology

Method used

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  • Desulfurization denitration composition, preparation method and application thereof
  • Desulfurization denitration composition, preparation method and application thereof
  • Desulfurization denitration composition, preparation method and application thereof

Examples

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preparation example Construction

[0056]

[0057] The desulfurization and denitrification composition of the present invention may be in the form of powder, granule, block and the like. The desulfurization and denitrification composition of the present invention can be obtained by conventional methods in the art. For example, it is sufficient to pulverize the above-mentioned components into powder and then mix them uniformly. In the process of using the desulfurization and denitrification composition of the present invention, it is usually necessary to add water to form a slurry. In order to improve the dissolution efficiency, the desulfurization and denitrification composition of the present invention is preferably in powder form. The particle size range of the desulfurization and denitrification composition of the present invention is 100-5000 mesh, preferably 110-2000 mesh, more preferably 120-150 mesh.

[0058]

[0059] The present invention also provides the use of the desulfurization and denitrif...

Embodiment 1

[0117] (1) Preparation of desulfurization and denitrification composition:

[0118] Mix the components uniformly according to the following formula to obtain the desulfurization and denitrification composition.

[0119]

[0120] (2) Removal of SO by desulfurization and denitrification composition 2 , NO X craft

[0121] 1. Pulping:

[0122] The prepared desulfurization and denitrification composition is added with water to make slurry, and after aging, a slurry whose main component is metal oxide is formed, and is kept in a slurry tank for standby.

[0123] 2. Denitrification:

[0124] (1) NO reaches the surface of the desulfurization and denitrification composition with the flue gas, and at the same time, NO is converted into NO under the catalysis of the active sites of metal oxides 2 , to accelerate its removal.

[0125] (2)NO 2 Reaching the surface of the adsorbent (that is, components such as magnesium oxide in the desulfurization and denitrification composition...

Embodiment 2

[0142] Mix the components uniformly according to the following formula to obtain the desulfurization and denitrification composition.

[0143]

[0144] Compared with Example 1, Example 2 reduces MgO content by 5 parts by weight, reduces MnO 2 2 parts by weight, increase SiO 2 , Fe 2 o 3 5 parts by weight, increase KMnO 4 2 parts, other conditions are constant, and technological process is also identical with embodiment 1, obtains following parameter list:

[0145] Table 3. Monitoring results of waste gas emission from sintering machine desulfurization facilities

[0146]

[0147] The desulfurization efficiency is 93.4%, and the denitrification efficiency is 55%.

[0148] At the same time, the consumption parameters of various consumables are as follows:

[0149] Various experimental data

[0150] 1 power consumption Spend 260 2 Water Consumption t / h 30 3 Consumption of desulfurization and denitrification composition kg / h ...

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Abstract

The invention discloses a desulfurization denitration composition, a preparation method and application thereof. The desulfurization denitration composition comprises magnesia (MgO), silica (SiO2), calcium oxide (CaO), ferric oxide (Fe2O3), alumina (Al2O3), copper oxide (CuO), manganese dioxide (MnO2), and optional strong oxidant potassium permanganate (KMnO4). The inventive composition can synchronously remove NOx during flue gas desulfurization process, and improve desulfurization denitration efficiency.

Description

technical field [0001] The invention relates to a desulfurization and denitrification composition, a preparation method and an application thereof, and is especially suitable for SO2-containing desulfurization produced after industrial coal combustion. 2 , NO X Composition, preparation method and application of simultaneous desulfurization and denitrification of flue gas with equal components. Background technique [0002] The atmosphere is the most basic element of life for human beings to survive. However, sulfur dioxide (SO 2 ), nitrogen oxides (NO X ) and particulate matter, SO 2 and NO X It is the two most important air pollutants and the main cause of acid rain. At the same time NO X It is also a substance that causes environmental problems such as ozone layer depletion and photochemical smog. These have become important factors restricting social and economic development, and have aroused widespread concern of people from all over the world. [0003] Scientist...

Claims

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Application Information

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IPC IPC(8): B01D53/81B01D53/60B01J20/30B01J20/10
CPCY02A50/20
Inventor 童裳慧
Owner ZHONGJING ENVIRONMENTAL TECH CO LTD