Unlock instant, AI-driven research and patent intelligence for your innovation.

A method and device for removing vocs in waste gas by light radiation chlorine atoms and hydroxyl groups

A technology of chlorine atoms and light radiation, applied in chemical instruments and methods, separation methods, gas treatment, etc., can solve the problems of limited application range, frequent replacement of activated carbon, increased operating costs, etc., achieve broad development and application prospects, and remove VOCs High efficiency and low initial investment

Active Publication Date: 2018-11-06
JIANGSU UNIV
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The catalytic combustion method is to convert the exhaust gas into harmless and odorless carbon dioxide and water through catalytic combustion. This method has low ignition temperature, energy saving, high purification rate, convenient operation, small footprint, and is suitable for high temperature or high concentration. Organic waste gas, but the catalyst is easily poisoned and deactivated, and the stability is poor
The removal efficiency of the activated carbon adsorption method can reach 95%, the equipment is simple, and the investment is small, but the activated carbon is replaced frequently, which increases the working procedures of loading, unloading, transportation, and replacement, resulting in increased operating costs
Therefore, so far, although a variety of VOCs removal technologies have been developed and utilized, each technology has almost limited application range and many disadvantages.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method and device for removing vocs in waste gas by light radiation chlorine atoms and hydroxyl groups
  • A method and device for removing vocs in waste gas by light radiation chlorine atoms and hydroxyl groups
  • A method and device for removing vocs in waste gas by light radiation chlorine atoms and hydroxyl groups

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The vertical distance A between the adsorption separation column 10 and the ultraviolet lamp 5 is 20 cm, the horizontal distance D between the ultraviolet lamp 5 and the ultraviolet lamp 5 is 20 cm, the distance C between the flue gas inlet 1 is 25 cm, and the chlorine gas aeration pipe 4 bulges out The average diameter of the small bubbles is 50 microns, the vertical distance or depth B of the adsorption and separation column 10 busbars entering the solution is 7cm, the ultraviolet lamp 5 and the quartz sleeve are inserted 15cm below the liquid surface, the ultrasonic transmitter 13 and the bottom of the adsorption separation column 10 are The end face maintains a vertical distance of 3 cm, the adsorption separation column 10 rotates counterclockwise, the diameter of the adsorption separation column 10 is 50 cm, and the rotational speed r is 15 rpm. The temperature of flue gas inlet 1 is 120°C, and the liquid-gas ratio is 8L / m 3 , the dosage of chlorine gas is 2.0L (ch...

Embodiment 2

[0047] The vertical distance A between the adsorption separation column 10 and the ultraviolet lamp 5 is 20 cm, the horizontal distance D between the ultraviolet lamp 5 and the ultraviolet lamp 5 is 20 cm, the distance C between the flue gas inlet 1 is 25 cm, and the chlorine gas aeration pipe 4 bulges out The average diameter of the small bubbles is 50 microns, the vertical distance or depth B of the adsorption and separation column 10 busbars entering the solution is 7cm, the ultraviolet lamp 5 and the quartz sleeve are inserted 15cm below the liquid surface, the ultrasonic transmitter 13 and the bottom of the adsorption separation column 10 are The end face maintains a vertical distance of 3 cm, the adsorption separation column 10 rotates counterclockwise, the diameter of the adsorption separation column 10 is 50 cm, and the rotational speed r is 15 rpm. The flue gas inlet 1 temperature is 120°C, and the liquid-gas ratio is 5L / m 3 , the dosage of chlorine gas is 3.0L (chlor...

Embodiment 3

[0049] The vertical distance A between the adsorption separation column 10 and the ultraviolet lamp 5 is 20 cm, the horizontal distance D between the ultraviolet lamp 5 and the ultraviolet lamp 5 is 20 cm, the distance C between the flue gas inlet 1 is 25 cm, and the chlorine gas aeration pipe 4 bulges out The average diameter of the small bubbles is 50 microns, the vertical distance or depth B of the adsorption and separation column 10 busbars entering the solution is 7cm, the ultraviolet lamp 5 and the quartz sleeve are inserted 15cm below the liquid surface, the ultrasonic transmitter 13 and the bottom of the adsorption separation column 10 are The end face maintains a vertical distance of 3 cm, the adsorption separation column 10 rotates counterclockwise, the diameter of the adsorption separation column 10 is 50 cm, and the rotational speed r is 15 rpm. The flue gas inlet 1 temperature is 120°C, and the liquid-gas ratio is 5L / m 3 , the dosage of chlorine gas is 1.0L (chlor...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a method and device for removing VOCs (Volatile Organic Compounds) in waste gas by light radiation on chlorine atoms and hydroxyl. According to the method, hypochlorous acid is decomposed by ultraviolet light radiation to generate chlorine atoms and hydroxyl, which then are used as an oxidant of the VOCs and are used for oxidizing and removing the VOCs in flue gas in a photolysis desorption bed. The system has an extremely high oxidization property, and can obtain a 100% removing rate of VOCs; and in a removing process, no secondary pollution is caused, and the system has a wide market application prospect.

Description

technical field [0001] The invention relates to the field of combustion flue gas pollutant control, in particular to a method and device for removing VOCs in waste gas by light radiation of chlorine atoms and hydroxyl groups. Background technique [0002] VOCs is the English abbreviation of Volatile Organic Compounds. A large number of studies have shown that after VOCs enter the human body through the respiratory tract and skin, they can cause temporary and permanent lesions in human breathing, blood, liver and other organs (such as causing various blood diseases and cancers). Various organic waste gases are produced in industrial production, mainly including various hydrocarbons, alcohols, aldehydes, acids, ketones and amines, etc. These organic waste gases will cause air pollution and endanger human health. With the rapid development of the economy and the improvement of people's awareness of environmental protection, the problem of VOCs removal in exhaust gas has attrac...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/44B01D53/78B01D53/96
CPCB01D53/44B01D53/78B01D53/96B01D2258/0283Y02A50/20
Inventor 刘杨先王燕王谦潘剑锋唐爱坤刘勇
Owner JIANGSU UNIV