Spraying industry waste gas treatment method with ozone catalytic functional ceramic membrane as catalytic separation material

A technology of functional ceramics and ozone catalysis, applied in separation methods, semi-permeable membrane separation, chemical instruments and methods, etc., can solve the problems of inability to clean waste gas, secondary pollution, etc., and achieve high-efficiency separation treatment and catalytic ozone oxidation, large-scale The effect of mechanical strength, good catalytic performance

Pending Publication Date: 2022-04-26
大连海川博创环保科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, if the waste gas from the spraying industry is directly subjected to catalytic ozone oxidation treatment, a large amount of secondary pollution will be generated.
This shows that a single gas-phase oxidation technology cannot clean the waste gas from the spraying industry

Method used

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  • Spraying industry waste gas treatment method with ozone catalytic functional ceramic membrane as catalytic separation material
  • Spraying industry waste gas treatment method with ozone catalytic functional ceramic membrane as catalytic separation material

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Embodiment 1

[0025] This embodiment provides a method for treating waste gas in the spraying industry using an ozone catalytic functional ceramic membrane as a catalytic separation material, including:

[0026] A, preparation of ozone catalytic functional ceramic membrane;

[0027] B. Use the ozone catalytic functional ceramic membrane as a catalytic separation material to treat waste gas from the spraying industry.

[0028] preferred, such as figure 1 As shown, the preparation method of ozone catalytic functional ceramic membrane is as follows:

[0029] (1) Pretreatment of substrate ceramic membrane

[0030] The pore diameter of the base ceramic membrane used in the present invention is about 0.1 μm. Before the preparation, the base ceramic membrane was ultrasonically cleaned several times (at least 3 times) with deionized water and ethanol respectively, so as to remove impurities on the surface of the base ceramic membrane. Then put it into a muffle furnace, bake it at 580-600°C for ...

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Abstract

The invention discloses a spraying industry waste gas treatment method with a ceramic membrane with an ozone catalysis function as a catalytic separation material. The method comprises the following steps: preparing the ceramic membrane with the ozone catalysis function; the ceramic membrane with the ozone catalysis function is used as a catalytic separation material for treating waste gas in the spraying industry. The method for preparing the ceramic membrane with the ozone catalysis function comprises the following steps: pretreating a substrate ceramic membrane; preparing a UiO-66 seed crystal; then preparing a UiO-66 separation layer; and finally, preparing the Co3O4 catalyst layer. The two main components of benzene and pyridine in the waste gas in the spraying industry can be effectively separated by utilizing the ceramic membrane with the ozone catalysis function. Moreover, the substrate ceramic membrane and the catalytic layer provide higher mechanical strength and better catalytic performance for the ceramic membrane with the ozone catalytic function, so that the ceramic membrane with the ozone catalytic function can be applied to a waste gas treatment process for a long time.

Description

technical field [0001] The invention relates to the technical field of advanced oxidation treatment of waste gas, in particular to a method for treating waste gas in the spraying industry using an ozone catalytic functional ceramic membrane as a catalytic separation material. Background technique [0002] Volatile Organic Compounds (Volatile Organic Compounds, VOCs) generally refer to volatile organic compounds with a boiling point lower than 250°C at atmospheric pressure (101.325kPa). Among the VOCs gases emitted by human activities, the VOCs waste gas produced in the industrial production process is the most important source. Moreover, most of the VOCs emitted by industrial production are mixtures, which often contain refractory and highly toxic components such as aromatic hydrocarbons and nitrogen / sulfur compounds. In addition to their strong toxicity and carcinogenicity, such VOCs can also lead to the formation of secondary pollutants such as PM2.5 after being discharge...

Claims

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Application Information

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IPC IPC(8): B01D67/00B01D69/02B01D71/02B01D53/22B01D53/72B01D53/90B01J31/28B01J35/06
CPCB01D53/90B01D53/72B01D53/229B01D53/228B01D71/02B01D69/02B01D67/0093B01D67/0088B01J31/28B01D2258/0258B01D2257/7027B01D2257/708B01D2251/104B01D2325/10B01J35/59
Inventor 杨凤林王燕杨晨
Owner 大连海川博创环保科技有限公司
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