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Organic waste gas catalytic combustion catalyst and its manufacturing method

A catalytic combustion, organic waste gas technology, applied in chemical instruments and methods, separation methods, electrical connection between arms and arms, etc., can solve the problems of complex catalyst preparation process, short service life, high preparation cost, and achieve high The effect of low cost, high mechanical strength and simple manufacturing method

Inactive Publication Date: 2006-09-13
ZHEJIANG NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a catalyst with excellent performance, mechanical and mechanical Catalytic combustion catalyst with high strength, simple manufacturing method and low price and preparation method of the catalyst

Method used

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  • Organic waste gas catalytic combustion catalyst and its manufacturing method

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Effect test

Embodiment 1

[0016] Weigh 10.19g Cu(NO 3 ) 2 ·3H 2 O and 8.84g citric acid were mixed and dissolved in an appropriate amount of deionized water to obtain a precursor solution. Immerse 26.80g of cordierite honeycomb ceramics in the precursor solution for impregnation and adsorption, take it out after 3 to 5 minutes, and blow out the residual solution in the honeycomb channel. At this time, there is still most of the precursor solution remaining. until the surface is dry, then dry at 120°C for 1 hour, and then bake in a muffle furnace at 500°C for 1 hour. Repeat the above process 2 to 3 times to completely impregnate and absorb the precursor solution, and bake it in a muffle furnace at 500°C for 4 hours for the last time to make a catalytic combustion catalyst for organic waste gas purification treatment. The loading amount of copper oxide, the active component of the catalyst, is 10% of the weight of the carrier based on metal copper.

Embodiment 2

[0018] Weigh 17.05g of 50% Mn(NO 3 ) 2 The solution and 10.01 g of citric acid were mixed and dissolved in an appropriate amount of deionized water to obtain a precursor solution. Immerse 26.19g of cordierite honeycomb ceramics in the precursor solution for impregnation and adsorption, take it out after 3 to 5 minutes, and blow out the residual solution in the honeycomb channel. At this time, there is still most of the precursor solution remaining. until the surface is dry, then dry at 120°C for 1 hour, and then bake in a muffle furnace at 500°C for 1 hour. Repeat the above process 2 to 3 times to completely impregnate and absorb the precursor solution, and bake it in a muffle furnace at 500°C for 4 hours for the last time to make a catalytic combustion catalyst for organic waste gas purification treatment. The loading amount of the active component of the catalyst accounts for 10% of the weight of the carrier in terms of metal manganese.

Embodiment 3

[0020] Weigh 2.30g Cu(NO 3 ) 2 ·3H 2 O, 15.80g 50% Mn(NO 3 ) 2 Solution and 11.27g of citric acid were mixed, and an appropriate amount of deionized water was added to dissolve to obtain a precursor solution. Immerse 30.27g of cordierite honeycomb ceramics in the precursor solution for impregnation and adsorption, take it out after 3 to 5 minutes, and blow out the residual solution in the honeycomb channel. At this time, there is still most of the precursor solution remaining. until the surface is dry, then dry at 120°C for 1 hour, and then bake in a muffle furnace at 500°C for 1 hour. Repeat the above process 2 to 3 times to completely impregnate and absorb the precursor solution, and bake it in a muffle furnace at 500°C for 4 hours for the last time to make a catalytic combustion catalyst for organic waste gas purification treatment. The loading amount of copper and manganese oxides of the active components of the catalyst is based on the percentage of metal in the weig...

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Abstract

A catalyst for treating the organic waste gas by catalytic combustion is composed of the cellular ceramic carrier made of cordierite and carried active component. It is prepared through mixing the precursor of active component with organic acid, ethylanediol, or their mixture, dissolving in deionized water, immersing said carrier in it, drying and calcining.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a catalyst containing Cr, Mn, Fe, Co, Ni, Cu and Ag transition metal oxides used for catalytic combustion purification treatment of organic waste gas and a manufacturing method thereof. Background technique [0002] The use and emission of volatile organic compounds (VOCs) are involved in the production process of petrochemical, paint, electroplating, printing, coating, tire manufacturing and other industries. Harmful organic volatiles are usually hydrocarbons, oxygen-containing organic compounds, nitrogen, sulfur, phosphorus and halogen organic compounds. If these volatile organic compounds are directly discharged into the atmosphere without treatment, they will cause serious environmental pollution. Traditional organic waste gas purification treatment methods, such as adsorption method, condensation method, direct combustion method, etc., all have defects, such...

Claims

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Application Information

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IPC IPC(8): B01D53/86B01D53/72
CPCG11B5/4853
Inventor 罗孟飞谢云龙
Owner ZHEJIANG NORMAL UNIVERSITY
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