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Device for concentrating malodorous organic pollution waste gas by using adsorption method

A gas adsorption and concentration technology, applied in gas treatment, air quality improvement, separation methods, etc., can solve problems such as odor pollution, and achieve the effect of reducing comprehensive energy consumption and significant economic and social benefits

Active Publication Date: 2020-02-11
SHANGHAI SHENCHENG ENVIRONMENTAL PROTECTION EQUIP ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention discloses a gas adsorption and concentration device, which can solve the problem of large flow and low concentration odor pollution with relatively low-cost equipment

Method used

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  • Device for concentrating malodorous organic pollution waste gas by using adsorption method
  • Device for concentrating malodorous organic pollution waste gas by using adsorption method
  • Device for concentrating malodorous organic pollution waste gas by using adsorption method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] For the most basic technical scheme of the gas adsorption concentration device, please refer to the attached figure 1 .

[0029] It includes a housing 1 , an adsorption gas inlet 2 , an adsorption gas outlet 3 , a plurality of adsorption units 4 and a set of mobile desorption devices 5 . The adsorption unit is a small fixed-bed adsorber, which includes two head ends 41 that allow the adsorbed gas and desorbed gas to enter and exit the adsorber, and there are adsorbent 42 and insulating material 43 inside. All the adsorption units are arranged side by side and connected by a supporting connection structure to form a closed adsorption core 40, so that the adsorption gas entering the shell 1 from the adsorption gas inlet 2 must pass through the adsorption unit 4 on the adsorption core 40 to reach the adsorption gas discharge. Mouth 3. The mobile desorption device is composed of a hot air desorption device 51 and a mechanical moving device 52 . The hot air desorption dev...

Embodiment 2

[0036] Adsorption unit group 43 composed of two adsorption units, as the functional unit of the desorption process, see attached image 3 .

[0037]On the basis of Example 1, an adsorption unit group 43 composed of two adsorption units 4-1 and 4-2 is used as the functional unit of the desorption process. The hot air desorption device 51 can respectively connect the two head ends 411 and 412 on one side of the adsorption unit group with the desorption gas supply device 01 and the desorption gas treatment device 02 through a flexible pipe 511. One part is called the IO terminal. The two head ends 413 and 414 on the other side of the above-mentioned adsorption unit group are connected by a short communication pipe 5110 containing a gas heating device 512, and this part of the hot air desorption device is called the CA end.

[0038] During device work, adsorption process is identical with embodiment 1.

[0039] See attached for desorption state Figure 4 , see the desorption p...

Embodiment 3

[0043] The hot air desorption unit is equipped with a heat exchange device, see attached Figure 6-7 , 8a-d.

[0044] In the desorption process of the previous two embodiments, when the adsorption unit is about to complete the desorption, the desorption gas sent from the head end 41 of the adsorption unit and the flexible pipe 511 to the desorption gas treatment device 02 is a high-temperature gas, and this part of the gas The heat carried in is wasted energy and will keep the flexible pipe 511 at a high temperature. The solution is to arrange a heat exchanger between the two flexible pipes 511 that enter and exit the head end 412 of the adsorption unit of the hot air desorption device. The simpler solution is to arrange a partition heat exchanger 5131, such as Image 6 .

[0045] A solution with a higher heat utilization rate is to set up a regenerative heat exchanger. These also include valve switching regenerative heat exchangers or regenerator rotating regenerative heat...

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Abstract

The invention relates to a device for concentrating malodorous organic pollution waste gas by using an adsorption method. According to the specific scheme, a plurality of parallel fixed bed adsorbersand a set of movable hot air desorption device capable of being sequentially connected to at least one of the parallel fixed bed adsorbers are arranged, and the desorption of all the parallel fixed adsorption beds is completed through the movable hot air desorption device. According to the improved scheme, a movable hot air desorption device is connected to two adsorption units, and a heat accumulating type heat exchange device is arranged on the inlet pipeline and the outlet pipeline of the hot air desorption device. According to the invention, the desorption process of the regenerative fixedbed adsorber is converted into the step-by-step desorption with low power consumption from the centralized desorption with high power consumption; and in the desorption process, the heat energy is fully utilized by recovering the adsorbent and using the heat in the discharged desorption gas, so that the power requirement of gas adsorption and concentration equipment on matched energy supply is reduced, and the comprehensive energy consumption can be reduced.

Description

technical field [0001] The invention relates to a gas adsorption concentration device, and further relates to a device for concentration of malodorous organic pollution waste gas by adsorption method. Background technique [0002] Adsorption gas concentration technology has been more and more widely used in the field of atmospheric volatile organic compounds (VOCs) pollution control. Common gas adsorption and concentration devices include rotary adsorbers and regenerative fixed-bed adsorbers. The purpose of these methods is to concentrate the adsorbable pollutants, and oxidize the adsorbable pollutants into harmless simple compounds such as water and carbon dioxide with supporting destruction devices such as thermal oxidation destruction devices (TO), or to decompose these adsorbable pollutants Further separation and collection for recycling. These adsorption and concentration technologies are currently mostly used in industrial application scenarios with continuous operat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/04
CPCB01D53/0407B01D2257/708B01D53/0462B01D2258/06Y02A50/20B01D2257/90B01D53/0438B01D2259/4009B01D2259/404
Inventor 张传忠陈健
Owner SHANGHAI SHENCHENG ENVIRONMENTAL PROTECTION EQUIP ENG