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Method for processing exhaust gas containing high-concentration organic pollutant

An organic pollutant, high-concentration technology, used in combustion methods, combustion types, incinerators, etc., can solve problems such as inapplicable waste gas, achieve the effect of small footprint, make up for technical limitations, and high removal rate

Inactive Publication Date: 2015-02-11
上海同济华康环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] What the present invention is to solve is that the current RTO process cannot be applied to 3 ) Exhaust gas of organic pollutants, especially nitrogen oxides (NO x ) The problem of the treatment of exhaust gas

Method used

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  • Method for processing exhaust gas containing high-concentration organic pollutant
  • Method for processing exhaust gas containing high-concentration organic pollutant
  • Method for processing exhaust gas containing high-concentration organic pollutant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] The exhaust gas 10 to be treated, the ammonia gas 20 and the air 30 are all connected to the exhaust gas delivery pipeline 100 and sent to the first heat accumulator 11A.

[0055] The first regenerator 11A is heated to 850-900°C in advance, and the ceramic bed that has accumulated heat in the first regenerator 11A preheats the passing gas (the ceramic regenerator bed is cooled), and the preheated exhaust gas is sent to into the first chamber 121 of the combustion chamber 12.

[0056] At the same time, the auxiliary fuel is sent into the first chamber 121 through the auxiliary fuel inlet 42 on the left side, and the combustion-supporting fan 41 blows oxygen or air into the first chamber 42 to assist combustion. The gas enters the second chamber 122 through the right end of the first chamber 121 to continue combustion. Fully react under high temperature conditions in the combustion chamber 12, and release a large amount of heat, so that the temperature of the combustion ...

Embodiment 2

[0064] refer to image 3 Referring to Embodiment 1, in this embodiment, the combustion chamber 12 includes a first chamber 121 and a second chamber 122, and the second chamber 122 itself is an independent heat storage chamber. The combusted waste gas is conveyed through the bottom of the second chamber into two gas discharge pipes, one of which is a gas discharge pipe 130, and the gas discharge pipe 130 passes through the preheat recovery system 13 to absorb the remaining heat, and a part of the waste gas is directly discharged into the chimney 60, the other part of the exhaust gas passes through the waste heat recovery system 13 and then passes through the branch pipe 131 and the mixer 61 to mix, and then enters the back blowing cleaning system through the back blower 60. Another gas discharge pipe (second branch pipe) 132 is mixed by the mixer 61 and then enters the back blowing cleaning system through the back blower 60 .

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Abstract

The invention provides a method and device for processing exhaust gas containing high-concentration organic pollutant. A combustion chamber of an integrated RTO (Regenerative Thermo Oxidation) device is modified into two integrated or split type combustion chamber devices, and high temperature exhaust gas in one combustion chamber is led out, and with the combination of an external waste heat recovery device of the combustion chamber, waste heat recovery (capable of recovering superheated steam, saturated steam or hot water) and utilization of redundant heat energy of a second high temperature combustion chamber are achieved; moreover, if an ammonia gas replenishing device is additionally arranged at an exhaust gas inlet, with the combination of the SNCR (Selective Non-Catalytic Reduction) technology, the purpose of purifying NOx pollutants to N2 and H2O can be achieved. Under the premise of keeping the advantages (high heat efficiency, high removal rate, low investment and small occupied area) of the traditional RTO technology, the technology limitation that the traditional RTO technology only can be used for processing low concentration volatile organic pollutant exhaust gas can be overcome.

Description

technical field [0001] The invention relates to a method for treating waste gas, in particular to a method for treating waste gas containing high concentrations of organic pollutants and NO x way of exhausting pollutants. Background technique [0002] With the wide application of organic chemical products in industrial production, more and more volatile organic pollutants enter the atmosphere. The discharge of these pollutants not only seriously pollutes the environment, but also deeply endangers the life and health of the earth's organisms. At present, the removal methods or processes of volatile organic pollutants mainly include biological methods, combustion methods, low-temperature plasma decomposition methods and other methods or processes, among which the combustion method is currently the most mature, the most thorough removal of pollutants and the most widely used technology. [0003] The principle of the combustion process is to fully mix the volatile organic pol...

Claims

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Application Information

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IPC IPC(8): F23G7/06
CPCF23G7/06F23G2209/14
Inventor 赵修华王楚玉黄敏
Owner 上海同济华康环境科技有限公司
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