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Catalyst for decomposing ozone in gas and preparation method thereof

An ozone decomposition and catalyst technology, applied in the direction of catalyst activation/preparation, separation methods, chemical instruments and methods, etc., can solve the problems of poor binding force between active ingredients and carriers, complicated preparation process, dust fall off, etc., to avoid risk factors and The effect of unfavorable conditions, simple preparation process and low cost

Active Publication Date: 2022-02-22
QINGDAO GUOLIN ENVIRONMENTAL TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for preparing a catalyst for ozonolysis in gas, aiming to solve the problems of complex preparation process, poor binding force between active components and carrier, and serious dust shedding in ozonolysis catalysts in the prior art

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  • Catalyst for decomposing ozone in gas and preparation method thereof

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preparation example Construction

[0021] The preparation method of ozone decomposition catalyst in a gas of the present invention includes the following steps:

[0022] S1: Preparation of fibrous porous conductive carbon black

[0023] 1) Take the weight of the weight of the following weight: 100 parts of the conductive carbon, 5-10 parts of Tetrafluoroethylene emulsion, 10-15 parts of the pore agent and 40-60 distilled water;

[0024] 2) In the conductive carbon black, add polytetrafluoroethylene emulsion, aperture, and distilled water, mix, and a paste, stir, filtrate, and beam;

[0025] 3) When the slurry is rolled, then the slurry temperature is 40-60 ° C, the rolling time is from 1 to 2 h, extruded, molded, cured, the curing temperature is 300-350 ° C, the curing time is 3- 5h, furnace cold, fibrous porous conductive carbon black;

[0026] S2: Preparation of catalysts for ozone decomposition

[0027] 4) Take the electrolytic solution, the electrolyte includes the following molar concentration of metal ions: di...

Embodiment 1

[0040] The preparation method of ozone decomposition catalyst in a gas of the present invention includes the following steps:

[0041] S1: Preparation of fibrous porous conductive carbon black

[0042] 1) Take the weight of the weight of the following weight: 100 parts of the conductive carbon, 5 parts of the polytetrafluoroethylene emulsion, and 10 of the aperture agent and 40 parts of distilled water;

[0043] 2) In the conductive carbon black, add polytetrafluoroethylene emulsion, aperture, and distilled water, mix, and a paste, stir, filtrate, and beam;

[0044] 3) Repeat the slurry repeatedly, when crushing, the slurry temperature is 40 ° C, the rolling time is 2 h, extruded, molded, cured, the curing temperature is 300 ° C, the curing time is 3 h, the furnace is cold, the fibrous shape Porous conductive carbon black;

[0045] S2: Preparation of catalysts for ozone decomposition

[0046] 4) Take the electrolyte 1L, the electrolyte includes the following molar concentration: m...

Embodiment 2

[0050] The preparation method of ozone decomposition catalyst in a gas of the present invention includes the following steps:

[0051] S1: Preparation of fibrous porous conductive carbon black

[0052] 1) Take the weight of the following weight: 100 parts of the conductive carbon, 10 parts of Polytetrafluoride emulsion, 15 of the aperture agent and 60 distilled water;

[0053] 2) In the conductive carbon black, add polytetrafluoroethylene emulsion, aperture, and distilled water, mix, and a paste, stir, filtrate, and beam;

[0054] 3) Repeat the slurry repeatedly, when crushing, the slurry temperature is 60 ° C, the rolling time is 1 h, extruded, molded, cured, the cure temperature is 350 ° C, the curing time is 5 h, the furnace is cold, the fibrous shape Porous conductive carbon black;

[0055] S2: Preparation of catalysts for ozone decomposition

[0056] 4) Take the electrolyte 1L, the electrolyte comprises the following molar concentration: manganese sulfate 3.0 mol / L, nickel ...

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Abstract

The invention discloses a catalyst for decomposing ozone in gas and a preparation method thereof. The present invention comprises the following steps: S1: preparation of fibrous porous conductive carbon black to obtain fibrous porous conductive carbon black; S2: preparation of catalyst for ozonolysis, taking electrolyte, and depositing the electrolyte on the above obtained In the fibrous porous conductive carbon black, during electrochemical deposition, the temperature is 85-95°C, the voltage is 2-5V, and the power-on time is 1-3h; take it out and cure, the curing temperature is 300-350°C, and the curing time is 30 ‑60min, cut off to obtain a catalyst for ozonolysis. The catalyst for ozone decomposition of the present invention uses fibrous porous conductive carbon black as the carrier, manganese, cerium, iron and nickel as the main active component, and the active component is evenly covered in the pores of the carrier, with high catalytic efficiency, high activity and good thermal stability. Long service life, less dust falling off, simple preparation process, low cost, safe use and no hidden danger.

Description

Technical field [0001] The present invention belongs to the technical field of gas treatment, particularly a catalyst for ozone decomposition in a gas and a preparation method thereof. Background technique [0002] Ozone has been widely used in the purification of drinking water, the sterilization of industrial water and sewage and the desulfurization denitration of the petrochemical industry. With the wide application of ozone, with a large amount of gas emptying, some high-pressure places are constantly producing ozone, and even when the printer works, it also produces and releases ozone. Ozone is a pungent corrosive gas because its oxidation potential is large, so the toxicity is also very large, and the limit ozone allowed concentration of the work area is only 0.05 ppm. Therefore, the treatment of gas containing ozone is especially important. [0003] At present, the method of treating ozone is mainly: thermal dispensing method, activated carbon method, pre-oxidation method,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/889B01J35/06B01J35/10B01J37/08B01J37/34B01D53/86B01D53/66
CPCB01J23/8892B01J37/348B01J37/0018B01D53/8675B01J35/33B01J35/58B01J35/61Y02A50/20
Inventor 丁香鹏胡汉秋
Owner QINGDAO GUOLIN ENVIRONMENTAL TECHNOLOGY CO LTD