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A method for purifying exhaust gas

A waste gas purification and waste gas technology, applied in chemical instruments and methods, separation methods, heating methods, etc., can solve the problems of lack of secondary treatment technology of waste liquid, lack of oil fume absorbent, limited development, etc., to increase the maximum oil pollution The effect of increasing the adsorption capacity of oil pollution and improving the adsorption rate

Active Publication Date: 2019-07-05
淄博华岳环保设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the development is limited due to the lack of suitable oil fume absorbent and the lack of waste liquid secondary treatment technology

Method used

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  • A method for purifying exhaust gas

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Effect test

preparation example Construction

[0030] The preparation method of the above exhaust gas purification method comprises the following steps:

[0031] (1) Dissolve polyether-modified silicone oil, modified kapok fiber, and nano-alumina in hot water at 80°C, and cool;

[0032] (2) Add sodium dodecylbenzenesulfonate, nonylphenol polyoxyethylene ether, isopropanol, triethanolamine, sodium silicate, and citric acid to the solution produced in step 1, stir throughout, mix well, and disperse by ultrasonic 10-20min.

Embodiment 1

[0035] In an embodiment, the waste gas purification method, in parts by mass, includes the following raw materials: 7.5 parts by mass of sodium dodecylbenzenesulfonate, 5 parts by mass of nonylphenol polyoxyethylene ether, 3 parts by mass of isopropyl Alcohol, the triethanolamine of 3 mass parts, the sodium silicate of 3 mass parts, the citric acid of 3 mass parts, the polyether modified silicone oil of 3 mass parts, the modified kapok fiber of 7.5 mass parts, the nano-alumina of 2 mass parts , 45 parts by mass of water. The modified kapok fiber is obtained by using 20% ​​hydrogen peroxide to modify the kapok fiber whose length is less than 5mm for 50 minutes. The nano alumina is commercially available alumina with an average particle diameter of 20nm. The polyether-modified silicone oil is a commercially available polyether-modified silicone oil with a viscosity of 30 mPa.s at 25°C.

[0036] The preparation method of the above exhaust gas purification method comprises the f...

Embodiment 2

[0040] In an embodiment, the waste gas purification method, in parts by mass, includes the following raw materials: 10 parts by mass of sodium dodecylbenzenesulfonate, 2 parts by mass of nonylphenol polyoxyethylene ether, 5 parts by mass of isopropyl Alcohol, the triethanolamine of 1 mass part, the sodium silicate of 5 mass parts, the citric acid of 1 mass part, the polyether modified silicone oil of 4 mass parts, the modified kapok fiber of 5 mass parts, the nano-alumina of 3 mass parts , 40 parts by mass of water. The modified kapok fiber is obtained by using 20% ​​hydrogen peroxide to modify the kapok fiber whose length is less than 5mm for 60 minutes. The nano alumina is commercially available alumina with an average particle diameter of 20nm. The polyether-modified silicone oil is a commercially available polyether-modified silicone oil with a viscosity of 30 mPa.s at 25°C.

[0041] The preparation method of the above exhaust gas purification method comprises the follow...

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Abstract

The invention discloses a method for purifying exhaust gas. The method comprises contacting oil fume exhaust gas with an exhaust gas purifying agent, and the exhaust gas purifying agent includes the following raw materials: sodium dodecylbenzene sulfonate, nonylphenol polyoxyethylene ether, isopropyl Alcohol, triethanolamine, sodium silicate, citric acid, polyether modified silicone oil, modified kapok fiber, nano-alumina, water; the mass ratio of the polyether-modified silicone oil, modified kapok fiber, nano-alumina is ( 2‑4): (5‑10): (1‑3); the modified kapok fiber is modified by treating kapok fiber with hydrogen peroxide; the surface tension of the exhaust gas purifying agent is 18‑32 dyne / cm. Compared with the prior art, the product of the invention has been further improved in terms of maximum oil pollution adsorption capacity and adsorption rate.

Description

technical field [0001] The invention belongs to the field of oil fume absorption, and in particular relates to a waste gas purification method. Background technique [0002] At present, the common oil fume treatment methods are as follows: the first is the filtration method, and the working principle of this method is to use a mesh to trap large particles of pollutants. For the filtration of oil fume, the mesh gap is smaller, but it is also easier to clog, and needs to be replaced and cleaned frequently. The removal efficiency of the filter method to remove oil fume reaches 80% to 92%, the pressure drop is large, and the investment is small. However, due to the short protection time of the single layer, the filter material needs to be replaced regularly, so the operating cost is relatively high. The maintenance is simple and the refueling is convenient, but it takes up a lot of space and can only be placed outdoors. Generally speaking, the filter equipment operates stably,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/02B01J20/26B01J20/24B01J20/08B01J20/30
CPCB01D47/00F24C15/20
Inventor 徐雄剑
Owner 淄博华岳环保设备有限公司
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