Novel processing device and method for enhanced absorption of VOCs (volatile organic matter)

A new technology with enhanced absorption, applied in chemical instruments and methods, separation methods, gas treatment, etc., can solve the problems of affecting the surrounding environment, irritation, carcinogenicity, etc., and achieve the effects of low cost, small droplets, and high humidification intensity.

Active Publication Date: 2019-09-17
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the prescribed method, there are various components of VOCs. It is an important precursor of ozone and secondary organic aerosols. Some components are also toxic, irritating, and carcinogenic, and seriously affect the surrounding environment.

Method used

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  • Novel processing device and method for enhanced absorption of VOCs (volatile organic matter)
  • Novel processing device and method for enhanced absorption of VOCs (volatile organic matter)
  • Novel processing device and method for enhanced absorption of VOCs (volatile organic matter)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] In order to highlight the obvious advantages of the ultrasonic atomization effect, a common absorption tower is added for comparison. In this implementation case, the figure 2 The experimental flow chart.

[0052] The parameters of the ultrasonic atomizer device are: the inner diameter of the humidifying tank 27 is 270 mm, the height is 280 mm, the height of the ultrasonic humidifying high-frequency oscillator 24 is 50 mm, the liquid level in the humidifying tank 27 is 35 mm, the inlet gas temperature is 289.6K, and the inlet is relatively The humidity is 43%, the flow rate is 15.71L / min, the pressure of the humidifying tank 27 is 196kPa, there are 251 transducers, and the power is 35W; Volume 450mL / h.

[0053] The Raschig ring packing layer 14 with a packing layer height of 3 cm is put into the absorption tower. Afterwards, the methanol solution with a mass concentration of 15% is placed in the gaseous pollutant storage bottle 5, and the water pump 18 is opened aft...

Embodiment 2

[0059] The Raschig ring packing layer 14 with a packing layer height of 4 cm is put into the absorption tower. Afterwards, the methanol solution with a mass concentration of 15% is placed in the gaseous pollutant storage bottle 5, and the water pump 18 is opened after mixing evenly, and the water in the pool 19 is injected into the absorption tower through the tee 16 and the liquid flow meter 17, and the liquid Flow meter 17 is adjusted to 45L / h, 59.5L / h, 72L / h, 90L / h, 110L / h respectively.

[0060] Open the nitrogen in the inert gas cylinder 1 and feed it into the gas path through the inert gas flowmeter 3, and the inert gas flowmeter (3) is adjusted to 60L / h. After waiting for the inert gas to be purged in the absorption tower 9, start the air pump 2, The methanol gas in the gaseous pollutant storage bottle 5 is injected into the buffer bottle 6 through the gas flowmeter 4 to mix with nitrogen, and the gas flowmeter 4 is adjusted to 15L / h, 17L / h, 18L / h, 20L / h, 22L / h, the rat...

Embodiment 3

[0065] The Raschig ring packing layer 14 with packing layer height of 5 cm is put into the absorption tower. Afterwards, the methanol solution with a mass concentration of 15% is placed in the gaseous pollutant storage bottle 5, and the water pump 18 is opened after mixing evenly, and the water in the pool 19 is injected into the absorption tower through the tee 16 and the liquid flow meter 17, and the liquid Flow meter 17 is adjusted to 45L / h, 59.5L / h, 72L / h, 90L / h, 110L / h respectively.

[0066] Open the nitrogen in the inert gas cylinder 1 and pass it into the gas path through the inert gas flow meter 3, and the inert gas flow meter 3 is adjusted to 60L / h. The methanol gas in the pollutant storage bottle 5 is pumped into the buffer bottle 6 through the gas flowmeter 4 and mixed with nitrogen, and the gas flowmeter 4 is adjusted to 15L / h, 17L / h, 18L / h, 20L / h, 22L / h h, the ratio of liquid flow to gas flow at this time is 3.00, 3.50, 4.00, 4.50, 5.00. After the two gases are ...

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Abstract

The invention relates to a novel processing device and method for enhanced absorption of VOCs (volatile organic matter). The device is mainly applied to an absorption tower. The device mainly comprises an inert gas cylinder, an air pump, a gaseous pollutant storage bottle, a buffer bottle, an absorption tower, an ultrasonic atomizer, a water pump, a water pool, an ultrasonic atomizer device and the like. According to the principle of electronic high-frequency oscillation, by using high-frequency resonance of an ceramic atomized sheet, a liquid water molecular structure is broken to generate natural and elegant water mist, and to generate a uniformly dispersed micro-scale high-density micro-droplet stream; an ultrasonic atomizing absorption device is added based on the absorption tower to achieve effective 'enhanced absorption' of gaseous pollutants. The device and the method have the advantages of large humidification intensity, small and uniform fogdrops, high humidification efficiency, low cost, simple equipment and remarkable effect.

Description

technical field [0001] The invention relates to the technical field of VOCs gas treatment by absorption towers, in particular to a novel enhanced absorption VOCs treatment device. The invention also relates to a novel enhanced absorption VOCs treatment method. Background technique [0002] In recent years, the fog and haze caused by the emission of a large amount of volatile organic compounds, photochemical smog and air pollution in some areas have had a huge impact on people's bodies. According to the prescribed method, there are various components of VOCs. It is an important precursor of ozone and secondary organic aerosols. Some components are also toxic, irritating, and carcinogenic, and seriously affect the surrounding environment. Ultrasonic atomization technology uses the principle of electronic high-frequency oscillation, through the high-frequency resonance of the ceramic atomization sheet, breaks up the molecular structure of liquid water to produce natural and el...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78B01D53/72
CPCB01D53/78B01D53/72B01D2257/708Y02A50/20
Inventor 郭斌孙嘉祺
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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