A microwave-driven infinite ultraviolet combined catalytic combustion method and equipment for treating vocs gas

A catalytic combustion, electrodeless ultraviolet technology, applied in the combustion method, lighting and heating equipment, combustion type and other directions, can solve the problem of energy consumption and no better solution, achieve good catalytic decomposition effect, reduce secondary pollutants Emissions and the effect of improving the service life

Active Publication Date: 2020-11-03
SHANGHAI SECOND POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method focuses on practical applications and has a good purification effect, but there is no good solution to the energy consumption problem caused by catalytic combustion of low-concentration organic waste gas

Method used

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  • A microwave-driven infinite ultraviolet combined catalytic combustion method and equipment for treating vocs gas

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Exhaust gas parameters: flow rate 800~1000m 3 / h, the pollutant component is toluene, the concentration is 30~60ppm;

[0044] Equipment parameters: The ultraviolet photolysis module contains 11 185nm electrodeless ultraviolet lamps, each with a rated power of 65w, the output power of the microwave generator 1 is 300~420w, and the gas residence time is 2~5s; the temperature of the preheated bed layer 6 in the catalytic combustion module 220~300℃, the temperature of the catalytic combustion bed 7 is 220~300℃, and the gas residence time is 0.4~1.2s;

[0045] When the exhaust gas treatment device is running, the microwave generator 1 in the ultraviolet photolysis module operates stably at the set power, and the output power of the microwave generator 1 in the catalytic combustion module transmits the electrical signal to the control device through the infrared temperature sensor 9, and finally the frequency conversion high voltage The driver 2 is adjusted to control the te...

Embodiment 2

[0047] Exhaust gas parameters: flow rate 400~600m 3 / h, the pollutant component is toluene, the concentration is 480~520ppm;

[0048] Equipment parameters: The ultraviolet photolysis module contains 11 185nm electrodeless ultraviolet lamps, each with a rated power of 65w, the output power of the microwave generator 1 is 300~420w, and the gas residence time is 4~8.5s; the preheating bed layer 6 in the catalytic combustion module The temperature is 220~300°C, the temperature of the catalytic combustion bed 7 is 220~300°C, and the gas residence time is 0.8~2s;

[0049] When the exhaust gas treatment device is running, the microwave generator 1 in the ultraviolet photolysis module operates stably at the set power, and the output power of the microwave generator 1 in the catalytic combustion module transmits the electrical signal to the control device through the infrared temperature sensor 9, and finally the frequency conversion high voltage The driver 2 is adjusted to control th...

Embodiment 3

[0055] Exhaust gas parameters: flow rate 800~1000m 3 / h, the pollutant component is isopropanol, the concentration is 120~1500ppm;

[0056] Equipment parameters: The ultraviolet photolysis module contains 11 185nm electrodeless ultraviolet lamps, each with a rated power of 65w, the output power of the microwave generator 1 is 300~420w, and the gas residence time is 2~5s; the temperature of the preheated bed layer 6 in the catalytic combustion module 220~300℃, the temperature of the catalytic combustion bed 7 is 220~300℃, and the gas residence time is 0.4~1.2s;

[0057] When the exhaust gas treatment device is running, the microwave generator 1 in the ultraviolet photolysis module operates stably at the set power, and the output power of the microwave generator 1 in the catalytic combustion module transmits the electrical signal to the control device through the infrared temperature sensor 9, and finally the frequency conversion high voltage The driver 2 is adjusted to control...

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Abstract

The invention discloses a method and equipment for treating VOCs gas by microwave-driven non-polar ultraviolet-combined catalytic combustion. The equipment comprises a reaction chamber, an ultravioletphotolysis module and a catalytic combustion module, wherein the ultraviolet photolysis module is composed of a microwave generator, a non-polar ultraviolet light source, a microwave protective screen and the like, and the catalytic combustion module is composed of multiple microwave generators, a preheating bed layer, a catalytic combustion bed layer and the like. The method and equipment for treating the VOCs gas by the microwave-driven non-polar ultraviolet-combined catalytic combustion have the advantages that an ultraviolet photolysis combined catalytic combustion technology is utilized,the non-polar ultraviolet light source is driven by microwave and serves as a heat source of catalytic combustion, the energy utilization efficiency is high in the treating process, no shadow effectoccurs, the defects in the prior art that degradation is incomplete, the energy consumption is large, and the accident rate is high are overcome, the degradation rate is high, the service life is long, and no secondary pollution occurs.

Description

technical field [0001] The invention relates to the technical field of volatile organic compound treatment, in particular to a microwave-driven infinite ultraviolet combined catalytic combustion device for treating VOCs gas, and a method for treating VOCs waste gas based on the device. Background technique [0002] Volatile organic compounds (VOCs) are typical pollutants in the atmospheric environment. Because of their pathogenic, harmful, and carcinogenic hazards to the human body, these pollutants are easily derived into secondary atmospheres such as photochemical smog in the atmospheric environment. Pollutants have become the focus of attention of the whole society in recent years. Volatile organic compounds can be divided into natural sources and man-made sources according to their sources. Man-made sources include various vehicles and factories, including chemical manufacturing, thermal power generation, pharmaceutical industry, petrochemical storage and transportation,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23G7/07F23G5/44F23G5/50F23J15/04F23J15/06
CPCF23G5/44F23G5/50F23G7/07F23J15/04F23J15/06
Inventor 袁昊吴鸿铖关杰郭耀广戴珏苏瑞景杨佃华朱瑞省刘永李锋
Owner SHANGHAI SECOND POLYTECHNIC UNIVERSITY
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