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Dry method desulfurizer and producing method and application thereof

A dry desulfurization and production method technology, applied in the direction of separation methods, chemical instruments and methods, heterogeneous catalyst chemical elements, etc., can solve the problems of slow reaction rate and large concentration fluctuation, and achieve low cost, low consumption, Good desulfurization effect

Inactive Publication Date: 2017-12-15
中晶蓝实业集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the dry desulfurization process, the Ca/S ratio is higher than that of the wet desulfurization process; the pressure drop of the fluidized bed layer is unstable

Method used

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  • Dry method desulfurizer and producing method and application thereof
  • Dry method desulfurizer and producing method and application thereof
  • Dry method desulfurizer and producing method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0045] Example 1

[0046] Produce the desulfurizer according to the formula in Table 1. nanoscale oxide V 2 o 5 , CoO, Co 2 o 3 and MnO 2 Add TiO 2 and ZrO 2 In the slurry, it was stirred for 48 hours at a rotation speed of 200pm to form a mixed solution. Under the action of ultrasonic waves with an oscillation frequency of 100kHz, add ammonia water with a concentration of 10wt% to the mixed solution until the pH of the reaction system is 7; after stirring for 3 hours, add potassium permanganate solution dropwise until the pH of the reaction system The value was 5, continued to stir for 2 hours, vacuum filtered, and washed with water to obtain a paste. The adding rate of ammonia water is 5mL / min; the dropping rate of potassium permanganate solution is 2mL / min. The paste was dried at 105° C. and ground into fine particles; the fine particles were fired at 500° C. for 3 hours to obtain desulfurizer F1.

[0047] Table 1. Formula of desulfurizer F1

[0048]

[0049]...

Example Embodiment

[0055] Example 2

[0056] Desulfurizer F2 was obtained according to the formula in Table 4, and other conditions were the same as in Example 1. The flue gas is catalyzed and oxidized by the desulfurizer, and absorbed by magnesium oxide dry powder. The concentration of sulfur dioxide in the purified flue gas is 17mg / Nm 3 , the desulfurization efficiency is 96.63%. The parameters of the flue gas inlet are the same as in Example 1, and the parameters of the flue gas outlet are shown in Table 5.

[0057] Table 4. Formula of desulfurizer F2

[0058] TiO 2

[0059] Table 5. Flue gas outlet parameters

[0060] serial number

Example Embodiment

[0061] Example 3

[0062] Desulfurizer F3 was obtained according to the formula in Table 6, and other conditions were the same as in Example 1. The flue gas is catalyzed and oxidized by the desulfurizer, and absorbed by magnesium oxide dry powder. The concentration of sulfur dioxide in the purified flue gas is 9mg / Nm 3 , The desulfurization efficiency is 98.25%. The parameters of the flue gas inlet are the same as in Example 1, and the parameters of the flue gas outlet are shown in Table 7.

[0063] Table 6. Formula of desulfurizer F3

[0064] TiO 2

[0065] Table 7. Flue gas outlet parameters

[0066] serial number

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Abstract

The invention discloses a dry method desulfurizer and a producing method and application thereof. Based on 100 parts by weight of the desulfurizer, the desulfurizer is prepared from, by weight, 30-60 parts of TiO2, 10-30 parts of ZrO2, 2-10 parts of V2O5, 2-10 parts of CoO, 1-5 parts of Co2O3 and 5-15 parts of MnO2. The dry method desulfurizer has a good catalysis and oxidation effect on sulfur dioxide in flue gas, and therefore the desulfurization efficiency is good.

Description

technical field [0001] The invention relates to a dry desulfurization agent and its production method and application, in particular to a dry desulfurization agent and its production method and a flue gas dry desulfurization method. Background technique [0002] my country is a country where coal is the main energy source. In the primary energy production and consumption structure, the proportion of coal is as high as 75% and 68.9% respectively. 84% of coal is utilized through combustion. With the continuous increase of coal consumption, air pollution (such as dust, SO 2 , NO x and CO 2 etc.) continue to increase. SO 2 Emissions have exceeded 20 million tons for many years, ranking first in the world. This leads to acid rain and SO in our country 2 Pollution is getting worse. The emissions of pollutants from coal-fired power plants account for about 50% of the total industrial emissions, and some regions may reach more than 90%. Therefore, the SO produced by burning...

Claims

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Application Information

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IPC IPC(8): B01J23/889B01D53/86B01D53/50
CPCB01J35/0006B01D53/8609B01D2251/10B01D2258/0283B01J21/063B01J21/066B01J23/002B01J23/22B01J23/34B01J23/75B01J23/8892B01J35/02B01J2523/00B01J2523/47B01J2523/48B01J2523/55B01J2523/845B01J2523/72
Inventor 童裳慧
Owner 中晶蓝实业集团有限公司
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