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Catalyst for decomposition of ozone in gases and preparation method of catalyst

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

Active Publication Date: 2019-11-12
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

Method used

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  • Catalyst for decomposition of ozone in gases and preparation method of catalyst

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preparation example Construction

[0021] A kind of preparation method of catalyst for ozone decomposition in gas of the present invention comprises the following steps:

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

[0023] 1) Take the following raw materials in parts by weight: 100 parts of conductive carbon black, 5-10 parts of polytetrafluoroethylene emulsion, 10-15 parts of pore-forming agent and 40-60 parts of distilled water;

[0024] 2) Add polytetrafluoroethylene emulsion, pore-forming agent and distilled water to the conductive carbon black, mix, adjust into a paste, stir, and filter to obtain a slurry;

[0025] 3) Roll the slurry repeatedly. When rolling, the temperature of the slurry is 40-60°C, and the rolling time is 1-2h. Extrude, shape, and solidify. The curing temperature is 300-350°C, and the curing time is 3- 5h, furnace cooling, to obtain fibrous porous conductive carbon black;

[0026] S2: Preparation of catalyst for ozonolysis

[0027] 4) Take the electrolyte, which i...

Embodiment 1

[0040] A kind of preparation method of catalyst for ozone decomposition in gas of the present invention comprises the following steps:

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

[0042] 1) Take the following raw materials in parts by weight: 100 parts of conductive carbon black, 5 parts of polytetrafluoroethylene emulsion, 10 parts of pore-forming agent and 40 parts of distilled water;

[0043] 2) Add polytetrafluoroethylene emulsion, pore-forming agent and distilled water to the conductive carbon black, mix, adjust into a paste, stir, and filter to obtain a slurry;

[0044] 3) Roll the slurry repeatedly. When rolling, the temperature of the slurry is 40°C, and the rolling time is 2 hours. Extrude, shape, and solidify. The solidification temperature is 300°C, and the solidification time is 3 hours. Cool in a furnace to obtain a fibrous shape Porous conductive carbon black;

[0045] S2: Preparation of catalyst for ozonolysis

[0046] 4) Take 1L of el...

Embodiment 2

[0050] A kind of preparation method of catalyst for ozone decomposition in gas of the present invention comprises the following steps:

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

[0052] 1) Take the following raw materials in parts by weight: 100 parts of conductive carbon black, 10 parts of polytetrafluoroethylene emulsion, 15 parts of pore-forming agent and 60 parts of distilled water;

[0053] 2) Add polytetrafluoroethylene emulsion, pore-forming agent and distilled water to the conductive carbon black, mix, adjust into a paste, stir, and filter to obtain a slurry;

[0054] 3) Roll the slurry repeatedly. When rolling, the temperature of the slurry is 60°C, and the rolling time is 1h. Extrude, shape, and solidify. The solidification temperature is 350°C, and the solidification time is 5h. Cool in a furnace to obtain a fibrous shape Porous conductive carbon black;

[0055] S2: Preparation of catalyst for ozonolysis

[0056] 4) Take 1L of electrolyte...

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Abstract

The invention discloses a catalyst for decomposition of ozone in gases and a preparation method of the catalyst. The preparation method comprises the following steps of S1, preparing fibrous porous graphitized carbon black, and obtaining the fibrous porous graphitized carbon black; S2, preparing the catalyst for the decomposition of the ozone, taking an electrolyte solution, using an electrochemical deposition method to deposit the electrolyte solution in the fibrous porous graphitized carbon black, in electrochemical deposition, a temperature being 85-95 DEG C, voltage being 2-5 V, and conduction time being 1-3h; and taking out and curing, a curing temperature being 300-350DEG C, curing time being 30-60min, cutting off, and obtaining the catalyst for the decomposition of the ozone. According to the catalyst for the decomposition of the ozone in the gases and the preparation method of the catalyst, the fibrous porous graphitized carbon black is regarded as a carrier, cerium, manganese,iron and nickel are regarded as main active components which are evenly covered in holes of the carrier, catalytic efficiency is high, activity is high, heat stability is good, life is long, dust falling off is little, a preparation technology is simple, the cost is low, and use is safe without hidden danger.

Description

technical field [0001] The invention belongs to the technical field of gas treatment, in particular to a catalyst for decomposing ozone in gas and a preparation method thereof. Background technique [0002] Ozone has been widely used in the purification of drinking water, sterilization and disinfection of industrial water and sewage, and desulfurization and denitrification in the petrochemical industry. With the wide application of ozone, along with the evacuation of a large amount of gas, some high-pressure places are constantly generating ozone, and even the printer will generate and release ozone when it is working. Ozone is a pungent and corrosive gas. Because of its high oxidation potential, it is also very toxic. The allowable concentration of ozone in the working area is only 0.05ppm. Therefore, the treatment of gases containing ozone has become particularly important. [0003] At present, the methods for dealing with ozone mainly include: thermal decomposition meth...

Claims

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Application Information

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Patent Type & Authority Applications(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
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