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Device for neutralizing treatment of chlorine-containing gas

A treatment device and gas technology, applied in the field of neutralization treatment device for chlorine-containing gas, can solve the problems of complex equipment, high cost, unsuitable for neutralization treatment, etc., and achieve the effect of good effect and increase of contact area.

Inactive Publication Date: 2012-10-10
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Above-mentioned these inventions are all aimed at flow big (generally all in 1000m 3 / h above) chlorine-containing gas or waste gas with relatively high chlorine concentration, the equipment is complex and expensive, and is not suitable for small flow (≤1m 3 / h) Neutralization of chlorine-containing gases

Method used

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  • Device for neutralizing treatment of chlorine-containing gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The high-temperature reaction exhaust gas discharged from the reactor has a flow rate of 150ml / min, Cl 2 Concentration (volume) 14%, the air flow of fans 41, 42, 61, 62 is 0.1m 3 / min. During the process of collecting and conveying the high-temperature reaction waste gas to the neutralization treatment device, the fan sucks in a large amount of air at the same time, so that the gas flow rate of the chlorine-containing gas entering the neutralization treatment device becomes the flow rate of the fan 0.1m 3 / min, Cl 2 The concentration (volume) is then:

[0027] (14%*150ml / min*1min) / (0.1m 3 / min*1min)=0.021%

[0028] This concentration far exceeds the maximum emission concentration allowed by the country of 85mg / m 3 (about 28ppm).

[0029] For the neutralization treatment equipment II in the neutralization treatment device, select a container 10 of 1000 × 2000 to fill with 18% NaOH solution 14, the liquid level 16 is 100mm away from the top of the container 10, and s...

Embodiment 2

[0031] The gas flow rate of the high-temperature reaction waste gas discharged from the reactor is 2500ml / min, Cl 2 Concentration (volume) 27%, the setting of chlorine-containing gas conveying equipment 1 in the neutralization treatment device is the same as embodiment one, under blower blower 4 and fan 6 effects, enters the chlorine-containing gas of neutralization treatment device, and its gas flow is fan's Flow 0.1m 3 / min, Cl 2 The concentration (volume) is then:

[0032] (27%*2500ml / min*1min) / (0.1m 3 / min*1min)=0.675%

[0033] The neutralization treatment equipment II of the neutralization treatment device is adjusted to use five layers of 150mm sponge partitions, the spacing between each layer of sponge partitions is 220mm, the distance between the bottom sponge partition and the bottom of the container 10 is 200mm, and the top layer The distance between the sponge partition plate and the liquid surface 16 of the NaOH solution is 70mm, and all the others are the same...

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Abstract

The invention relates to a device of neutralizing treatment of chlorine-containing gas, which is simple and economic, and can be used for the neutralizing treatment of the chlorine-containing gas in small flow rate(less than or equal to 1 m3 / h). The device comprises conveying equipment and neutralizing treatment equipment, wherein a gas output end of the conveying equipment is connected to the neutralizing treatment equipment; and the neutralizing treatment equipment comprises a container and a gas conveying tube, one end of the gas conveying tube is connected with the gas output end of the conveying equipment, the other end of the gas conveying tube is inserted to the bottom part of the container, the gas conveying tube is in sealed connection with the container, the middle part of the container is provided with sponge-shaped dividing plates by which the container is divided into an upper part and a lower part. The device has the advantages that: the neutralizing treatment of the chlorine-containing gas in small flow rate can be safely and continuously performed; the neutral reaction is performed more fully, and the effect is better; and after the chlorine-containing gas in smallflow rate is treated by the device, the content of C12 in exhaust gases is less than 1mg / m3 or 0.3mmp, and the emission meets the standard.

Description

technical field [0001] The invention relates to a neutralization treatment device for chlorine-containing gas. Background technique [0002] Chlorine (Cl 2 ) as a strong oxidizing gas with high activity is widely used in industrial production and chemical experiments, such as for tap water disinfection, industrial bleaching, high temperature gasification reaction and many chemical fields, but because chlorine is a kind of Strong irritating toxic gas, long-term activities in the environment containing chlorine can easily cause respiratory diseases, and when the chlorine content is high, it may even be life-threatening. Therefore, the treatment of chlorine-containing gases has always been widely concerned. [0003] CN1865127, applied by Zhejiang Weihua Chemical Co., Ltd., is a separation and purification method for mixed waste gas containing chlorine and hydrogen chloride. By using a chemical solvent, the chlorine in the mixed waste gas is absorbed in the liquid phase, separa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/78B01D53/68
Inventor 陈博陈小明赵良
Owner NANJING UNIV
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