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Method of catalytic combustion for removing volatile organic compounds (VOCs)

An organic compound, catalytic combustion technology, applied in combustion methods, chemical instruments and methods, combustion types, etc., to achieve the effects of stable operation, recycling, and reducing investment and operating costs

Active Publication Date: 2018-06-01
DALIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to ensure the stable combustion, this method is only suitable for purifying exhaust gas with high concentration of combustible and harmful components, or for purifying exhaust gas with high calorific value when harmful components are burned.

Method used

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  • Method of catalytic combustion for removing volatile organic compounds (VOCs)
  • Method of catalytic combustion for removing volatile organic compounds (VOCs)
  • Method of catalytic combustion for removing volatile organic compounds (VOCs)

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Embodiment Construction

[0026] Attached below Figure 1-5 The present invention is described in detail with specific examples, but the protection scope of the present invention is not limited.

[0027] Such as figure 1 As shown, a device for removing volatile organic compounds by catalytic combustion. The device of the present invention is a horizontal box structure. After the raw material gas and air are mixed in the gas mixing section 2a at the entrance of the device, they enter the gas preheating section 2b of the device in turn. , Catalytic reaction I section 2c, catalytic reaction II section 2d, heat exchange section 2e and adsorption section 2f.

[0028] The area where the present invention realizes the removal of volatile organic compounds is mainly the catalytic reaction section I section 2c, the catalytic reaction section II section 2d, the heat exchange section 2e and the adsorption section 2f, wherein the catalytic reaction section I section 2c realizes the preliminary removal of volatile...

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Abstract

The invention relates to a method of catalytic combustion for removing VOCs, and belongs to the field of waste gas purification. A gas raw material containing the VOCs is fed from a raw material gas inlet of a catalytic combustion VOCs removal device, and is subjected to two times of catalytic reactions and one time of adsorption removal; then the reaction tail gas, which reaches emission standard, flows out from the catalytic combustion VOCs removal device via an exhaust gas outlet. The system has a smart design, compact structure and stable operation. The removal method can effectively utilize the energy in the catalytic reactions, so that removal rate of the VOCs can reach more than 97%, wherein the adsorbent can be recycled, thus reducing investment and operation costs.

Description

technical field [0001] The invention relates to a method for removing volatile organic compounds by catalytic combustion, and belongs to the field of waste gas purification treatment. Background technique [0002] The World Health Organization (WHO) defines volatile organic compounds (volatile organic compounds, VOCs) as a general term for volatile organic compounds with a melting point below room temperature and a boiling point range between 50-260 °C. Mainly volatile hydrocarbons and their derivatives, including hydrocarbons, aromatic hydrocarbons, alcohols, aldehydes, ketones, lipids, amines and organic acids, etc., are the pollutants with large emissions at present. [0003] At present, most of the VOCs that urgently need to be purified come from chemical processes that use a large amount of organic solvents. The purification treatment process is basically divided into two categories: the first category is recycling, mainly through physical absorption, adsorption and ot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/04F23G7/07
CPCB01D53/0407B01D2257/708B01D2259/4009B01D2259/401F23G7/063F23G7/07Y02A50/20
Inventor 潘立卫张晶钟和香周毅
Owner DALIAN UNIV
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