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Organic waste gas absorbing liquid and preparing method thereof

A technology of organic waste gas and absorption liquid, applied in the field of waste gas absorption liquid, which can solve the problems of small gas volume, secondary pollution, complicated and dangerous operation, etc.

Inactive Publication Date: 2015-12-09
杨洋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005]The combustion method is not easy to deal with a large amount of waste gas, and the operation is complicated and dangerous
The adsorption capacity of activated carbon will decrease after adsorbing a certain amount of exhaust gas, and it needs to be replaced with new activated carbon or regenerated. Therefore, it is only suitable for exhaust gas with low concentration and small gas volume, and the sustainability is not high, which is easy to cause secondary pollution.
[0006] In Chinese patents 200710032770.4, 201410447382.2 and 201110150485.9, a method for treating waste gas with benzene-containing waste gas spray purification liquid is proposed. Although the above method is simple in operation, low in cost, The effect is stable, but its purification rate needs to be further improved, and when it uses halogen-containing substances, if it is used improperly, it will easily cause environmental pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 1) 10 parts of refined cotton powder, 5 parts of propylene oxide, 4 parts of chloroacetic acid, 50 parts of isopropanol, 100 parts of water, 30 parts of potassium hydroxide, mix the above materials, react at 50 degrees Celsius for 4 hours, and use acetone Precipitate, wash with alcohol solvent, and dry to obtain water-soluble hydroxyethyl carboxymethyl cellulose;

[0021] 2) Take 5 parts of hydroxyethyl carboxymethylcellulose obtained in step 1), add it to 80 parts of water, then add 2 parts of potassium carbonate, 1 part of sodium humate, 2 parts of acetic acid, 12 parts of sepiolite powder, 6 parts of 1 part of cross-linked rectorite, 8 parts of chitosan were stirred and dissolved at 30 degrees Celsius for 30 minutes, then 2 parts of defoamer 664, 1 part of hydrolyzed polymaleic anhydride (HPMA), 1 part of fatty acid polyoxyethylene ether were added to increase the temperature Continue to stir for 1 hour at 40 degrees Celsius, then add 2 parts of polydimethylsiloxane ...

Embodiment 2

[0023] 1) 10 parts of refined cotton powder, 15 parts of propylene oxide, 4 parts of chloroacetic acid, 50 parts of isopropanol, 100 parts of water, 30 parts of potassium hydroxide, mix the above materials, react at 50 degrees Celsius for 4 hours, and use acetone Precipitate, wash with alcohol solvent, and dry to obtain water-soluble hydroxyethyl carboxymethyl cellulose;

[0024] 2) Take 10 parts of hydroxyethyl carboxymethylcellulose obtained in step 1), add it to 95 parts of water, then add 8 parts of potassium carbonate, 3 parts of sodium humate, 5 parts of acetic acid, 15 parts of sepiolite powder, 8 parts of cross-linked rectorite, 12 parts of chitosan were stirred and dissolved at 30 degrees Celsius for 30 minutes, and then 5 parts of defoamer 664, 6 parts of hydrolyzed polymaleic anhydride (HPMA), and 6 parts of fatty acid polyoxyethylene ether were added to increase the temperature Continue to stir for 1 hour at 40 degrees Celsius, then add 3 parts of polydimethylsilox...

Embodiment 3

[0026] 1) 10 parts of refined cotton powder, 20 parts of propylene oxide, 4 parts of chloroacetic acid, 50 parts of isopropanol, 100 parts of water, 30 parts of potassium hydroxide, mix the above materials, react at 50 degrees Celsius for 4 hours, and use acetone Precipitate, wash with alcohol solvent, and dry to obtain water-soluble hydroxyethyl carboxymethyl cellulose;

[0027] 2) Take 15 parts of hydroxyethyl carboxymethylcellulose obtained in step 1), add it to 110 parts of water, then add 12 parts of potassium carbonate, 5 parts of sodium humate, 8 parts of acetic acid, 18 parts of sepiolite powder, 10 parts of cross-linked rectorite, 15 parts of chitosan were stirred and dissolved at 30 degrees Celsius for 30 minutes, and then 8 parts of defoamer 664, 10 parts of hydrolyzed polymaleic anhydride (HPMA), and 10 parts of fatty acid polyoxyethylene ether were added to increase the temperature Continue to stir for 1 hour at 40 degrees Celsius, then add 4 parts of polydimethyl...

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PUM

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Abstract

The invention relates to organic waste gas absorbing liquid and a preparing method thereof. The organic waste gas absorbing liquid is prepared from, by weight, about 80-110 parts of water, 2-12 parts of potassium carbonate, 1-5 parts of sodium humate, 2-8 parts of acetic acid, 2-8 parts of antifoaming agent 664, 1-10 parts of HPMA, 1-10 parts of fatty acid polyoxyethylene ether, 2-4 parts of polydimethylsiloxane, 5-15 parts of hydroxyethyl carboxymethyl cellulose, 2-4 parts of polyethylene glycol, 12-18 parts of sea-foam stone powder, 6-10 parts of cross-linking rectorite and 8-15 parts of chitosan. The raw materials of the absorbing liquid have the advantages of being easy to degrade, cheap in price and the like and have the synergistic effect through the special ratio, the absorbing ratio of the raw materials to organic waste gas is greatly increased, and the benzene series organic waste gas is effectively removed.

Description

technical field [0001] The invention relates to a waste gas absorbing liquid, in particular to a benzene-based organic waste gas absorbing liquid containing hydroxyethyl carboxymethyl cellulose. [0002] The present invention also relates to a method for preparing the above absorbing liquid. Background technique [0003] Toluene, xylene, and benzene, commonly known as "triphenyl" in the industry, are widely used as chemical raw materials or solvents in fuel, pesticide, spice production, paint making, pharmaceutical, furniture manufacturing and other industries. In recent years, with the development of the electronics industry, machinery, automobile manufacturing, printing, shoemaking, and paint industries, more and more occasions use toluene, benzene, etc. as solvents, resulting in the volatilization of a large amount of gas benzene into the atmosphere. Therefore, the pollution of benzene-containing waste gas to the atmosphere is also becoming more and more serious. They a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/14
Inventor 杨洋
Owner 杨洋