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Non-ionic compound cationic surface activity absorption solution used for efficiently purifying black smoke and preparation method thereof

A technology of compounding cations and surface activity, which is applied in the field of non-ionic compound cationic surface active absorbing liquid for efficient purification of black smoke, can solve the problem that the black smoke purification effect cannot be obtained, cannot be effectively wetted by water, cannot effectively eliminate smoke, etc. problem, to achieve the effect of less foam, strong surface activity and short wetting time

Inactive Publication Date: 2011-09-07
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There is a layer of tar-like substance on the surface of carbon black, which is hydrophobic and cannot be effectively wetted by water. Therefore, conventional wet dedusting and desulfurization technology cannot effectively eliminate smoke
For example, the commonly used water spray absorption method, because the surface of carbon black is rich in oily substances and presents hydrophobicity, it is difficult to remove it; the cloth bag method cannot obtain good black smoke purification effect due to the extremely small particle size of carbon black
The soot and sulfur dioxide emissions in the flue gas of most coal-fired and oil-fired kilns meet the standards, but the Ringelmann blackness fails to meet the standards, and even exceeds the emission standards by several times. The main reason is that the carbon black has not been effectively purified. massive discharge

Method used

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  • Non-ionic compound cationic surface activity absorption solution used for efficiently purifying black smoke and preparation method thereof
  • Non-ionic compound cationic surface activity absorption solution used for efficiently purifying black smoke and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The preparation of the non-ionic composite cationic surface active absorption liquid of the present invention:

[0027] Dissolve 9g of AEO-9 in 1000g of water;

[0028] a) 1.5g OP-10 is dropped into the solution prepared in a);

[0029] b) 7g CTAB is dropped into b) in the prepared solution;

[0030] c) 8g NaCl is dropped into c) in the prepared solution;

[0031] d) Add 7g C 2 h 5 OH is put into the solution prepared in d) to obtain the nonionic compounded cationic surfactant absorption solution.

[0032] For an umbrella-type dust collector, the carbon black concentration is 5000mg / m 3 , The liquid-gas ratio is 0.4L / m 3 1. Under the condition that the superficial gas velocity is 3.5m / s, the removal efficiency of carbon black in black smoke is 99.5%.

Embodiment 2

[0034] The preparation of the non-ionic composite cationic surface active absorption liquid of the present invention:

[0035] a) Dissolve 8g of AEO-9 in 1000g of water;

[0036] b) Put 1.0g OP-10 into the solution prepared in a);

[0037] c) 6.2g CTAB is dropped into b) in the prepared solution;

[0038] d) 7g NaCl is dropped into c) in the prepared solution;

[0039] e) Add 7g C 2 h 5 OH is put into the solution prepared in d) to obtain the nonionic compounded cationic surfactant absorption solution.

[0040] For an umbrella-type dust collector, the carbon black concentration is 5000mg / m 3 , The liquid-gas ratio is 0.4L / m 3 1. Under the condition that the superficial gas velocity is 3.5m / s, the removal efficiency of carbon black in black smoke is 99.4%.

Embodiment 3

[0042] The preparation of the non-ionic composite cationic surface active absorption liquid of the present invention:

[0043] a) Dissolve 5g of AEO-9 in 1000g of water;

[0044] b) 0.7g OP-10 is dropped into the solution prepared in a);

[0045] c) 5.5g CTAB is dropped into b) in the prepared solution;

[0046] d) 6g NaCl is dropped into c) in the prepared solution;

[0047] e) add 4g C 2 h 5OH is put into the solution prepared in d) to obtain the nonionic compounded cationic surfactant absorption solution.

[0048] For an umbrella-type dust collector, the carbon black concentration is 5000mg / m 3 , The liquid-gas ratio is 0.4L / m 3 1. Under the condition that the superficial gas velocity is 3.5m / s, the removal efficiency of carbon black in black smoke is 99.2%.

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Abstract

The invention relates to the technical field of environmental protection, in particular relating to carbon black in wet purification black smoke in atmospheric pollution control direction. The invention particularly discloses a non-ionic compound cationic surface activity absorption solution used for efficiently purifying black smoke. The absorption solution is characterized in that a non-ionic surfactant as a main ingredient, and then a cationc surfactant, inorganic salt and a solubilizer are successively dissolved into water at ratio. The absorption solution has the advantages of abundant raw material, simple preparation method, strong water solubility and low operation cost, has no corrosivity on a black smoke purification device, can be reused and is suitable for black smoke discharging enterprises of various scales; and the removal efficiency of the carbon black in fire coal furnace black smoke is above 99%.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to wet purification of carbon black in black smoke in the direction of air pollution control, in particular to a non-ionic compound cationic surface-active absorption liquid for efficient purification of black smoke. Background technique [0002] my country's energy structure is dominated by coal, accounting for about 75% of the total energy structure. my country is still a large ceramics production country with a large number of coal-fired ceramic kilns (according to statistics, the annual energy consumption of the ceramic industry alone is equivalent to tens of millions of tons of standard coal. ), and mainly small and medium-sized enterprises, the production scale is small, the combustion technology level is not high, and the coal cannot be completely burned, and the incomplete combustion of coal will produce a lot of black smoke. The main components of black smok...

Claims

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Application Information

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IPC IPC(8): B01D47/00
Inventor 李彩亭路培赵亚培曾光明谢旭文李珊红
Owner HUNAN UNIV
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