Method for purifying waste gas containing water soluble organism

A technology for water-soluble organic matter and waste gas, which is applied in chemical instruments and methods, combustion methods, separation methods, etc., and can solve problems such as exhaust gas pollution

Inactive Publication Date: 2005-04-20
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to solve the pollution problem of exhaust gas in the polyester production process, and to provide a catalytic combustion treatment method for waste gas containing water-soluble organic substances with short process flow, simple equipment, stable operation and high purification rate

Method used

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  • Method for purifying waste gas containing water soluble organism
  • Method for purifying waste gas containing water soluble organism

Examples

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Effect test

Embodiment 1～8

[0016] A polyester production plant emits waste gas, and its waste gas discharge volume is 1000-10000m 3 / h; Exhaust gas contains acetaldehyde, paraldehyde, ethylene glycol, 2-methyl-1,3-dioxolane and other substances, of which acetaldehyde and 2-methyl-1,3-diox The pentane ring is the main one, and its total hydrocarbons range from 3000 to 20000 μl / l. Use a fan to draw the exhaust gas out, and after passing through the absorption homogenizer, ethylene glycol is completely absorbed, and acetaldehyde and 2-methyl-1,3-dioxolane are homogenized in concentration; after preheating to a certain temperature, It enters the catalytic combustion reactor and is completely oxidized and discharged under the action of the catalyst. Table 1 is the operating conditions and treatment results of Examples 1 to 8, wherein the catalytic combustion catalyst in Examples 1 to 4 is a honeycomb catalyst containing Pt0.26wt%, Pd0.13wt%, and the catalytic combustion catalyst in Examples 5 to 8 It is a ...

Embodiment 9

[0018] This example illustrates the homogenization effect of the homogenizing absorber, the homogenization results are shown in figure 1 , the homogenization effect is obvious.

[0019] implement

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Abstract

The invention relates to a method for purifying waste gas containing water-soluble organic substances, in particular to a method for purifying waste gas produced in the polyester production process, and belongs to the technical field of waste gas purification and treatment. In the invention, the exhaust gas produced in the polyester production process first passes through an absorption homogenizer equipped with water, and then undergoes catalytic combustion treatment. The absorption homogenizer absorbs organic matter with high boiling point such as ethylene glycol, and other organic components such as acetaldehyde are stabilized and homogenized due to absorption-gas stripping. The method of the invention can effectively remove the high-boiling point substances of the polyester waste gas, eliminate potential safety hazards, and at the same time, the concentration of organic matter in the waste gas is significantly homogenized, ensuring stable long-term operation of the catalytic combustion device. The invention has short process flow, simple equipment and good purification treatment effect, and can be used for purification treatment of various waste gases with similar components.

Description

1. Technical field [0001] The invention relates to a method for purifying and treating waste gas containing water-soluble organic matter, more specifically, to a kind of waste gas containing acetaldehyde, 2-methyl-1,3-dioxolane, ethylene glycol and Purification treatment method of other organic component waste gas. 2. Background technology [0002] The emissions from the polyester production process mainly contain acetaldehyde, 2-methyl-1,3-dioxolane, ethylene glycol and other low-molecular oxygen-containing organic compounds such as aldehydes, ketones, alcohols, acids, esters, and ethers. The exhaust gas of organic matter has a high concentration of organic matter and has a strong bad smell. If it is not purified, it will pollute the surrounding environment and violate the national environmental protection regulations. [0003] The exhaust gas emitted during the early polyester production process was mostly treated by the method of combustion in a heat medium furnace, but ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/72B01D53/86F23G7/06
Inventor 刘忠生王新陈玉香周旗李花伊曾向东张海波
Owner CHINA PETROLEUM & CHEM CORP
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