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Catalyst for catalytic combustion of industrial organic waste gas and preparation method thereof

An organic waste gas, catalytic combustion technology, applied in catalyst activation/preparation, physical/chemical process catalyst, catalyst carrier, etc., can solve the problems of reducing complete combustion, unfavorable expansion of production, complex catalyst preparation process, etc., to achieve convenient operation, preparation Simple process and high catalytic activity

Inactive Publication Date: 2011-10-05
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As introduced in the invention book with publication number CN1462648, the invention is a Cu-Mn-Zr-Ce-O four-component catalyst, which has low cost and mild operating conditions, compared with the non-metallic catalysts of the prior art , can greatly reduce the reaction temperature of complete combustion, improve catalytic activity, and greatly prolong the life of the catalyst, but the preparation process of the catalyst is complicated, which is not conducive to expanding production

Method used

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  • Catalyst for catalytic combustion of industrial organic waste gas and preparation method thereof
  • Catalyst for catalytic combustion of industrial organic waste gas and preparation method thereof
  • Catalyst for catalytic combustion of industrial organic waste gas and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Preparation and processing of self-made carrier

[0028] Mix magnesium oxide, silicon oxide, aluminum oxide, and titanium oxide in a certain proportion, wherein the mass of magnesium oxide is 10g, the mass of silicon oxide is 45g, the mass number of aluminum oxide is 40g, and titanium oxide is 5g. hours, and then put the carrier into an oxalic acid solution with a mass fraction of 5% in an oven at 60°C for acid treatment for 6 hours, then wash the carrier with distilled water under ultrasonic conditions, and finally dry it.

[0029] (2) Preparation of active component solution

[0030] Take 34.6gCu(NO 3 ) 2 .3H 2 O solid, and 42gCo(NO 3 ) 2 .6H 2 O solid, dissolved in 200g distilled water, dubbed Cu 2+ and Co 2+ A solution in which the ratio of the amount of substances is 1:1.

[0031] (3) Impregnation and roasting of active components

[0032] Immerse the carrier treated in step (1) in the solution in step (2), soak for 10 hours, then filter, put the carr...

Embodiment 2

[0034] (1) Preparation and processing of self-made carrier

[0035] Mix magnesium oxide, silicon oxide, aluminum oxide, and titanium oxide in a certain proportion, wherein the mass of magnesium oxide is 10g, the mass of silicon oxide is 60g, the mass number of aluminum oxide is 25g, and the mass of titanium oxide is 5g. Roast at high temperature for 6 hours, then put the carrier into an oxalic acid solution with a mass fraction of 20% in an oven at 100°C for acid treatment for 10 hours, then wash the carrier with distilled water under ultrasonic conditions, and finally Dry at 110°C.

[0036] (2) Preparation of active component solution

[0037] Take 14.46gCu(NO 3 ) 2 .3H 2 O solid, and 69.8gCo(NO 3 ) 2 .6H 2 O solid, dissolved in 200g distilled water, dubbed Cu 2+ and Co 2+ A solution in which the ratio of the amount of substances is 1:4.

[0038] (3) Impregnation and roasting of active components

[0039] Immerse the carrier treated in step (1) in the solution in s...

Embodiment 3

[0041] (1) Preparation and processing of self-made carrier

[0042] Mix magnesium oxide, silicon oxide, aluminum oxide, and titanium oxide in a certain proportion, wherein the mass of magnesium oxide is 20g, the mass of silicon oxide is 45g, the mass number of aluminum oxide is 20g, and the mass of titanium oxide is 15g. Roast at high temperature for 4 hours, then put the carrier into an oxalic acid solution with a mass fraction of 10% in an oven at 80°C for acid treatment for 10 hours, then wash the carrier with distilled water under ultrasonic conditions, and finally Dry at 100°C.

[0043] (2) Preparation of active component solution

[0044] Take 53.4gCu(NO 3 )2 .3H 2 O solid, and 16gCo(NO 3 ) 2 .6H 2 O solid, dissolved in 200g distilled water, dubbed Cu 2+ and Co 2+ A solution in which the ratio of the amount of substances is 4:1.

[0045] (3) Impregnation and roasting of active components

[0046] Immerse the carrier treated in step (1) in the solution in step (...

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Abstract

The invention relates to a catalyst for catalytic combustion of industrial organic waste gas and, and a preparation method thereof, and belongs to the technical field of environmentally-friendly catalytic materials and atmospheric pollution treatment. The catalyst consists of a self-prepared catalyst carrier and active components loaded on the self-prepared catalyst carrier, wherein the active components consist of copper-cobalt compound metal oxides. In the copper-cobalt compound metal oxides, the mol ratio of copper oxide to cobalt oxide is 1-4:4-1. The mass percentage of the loaded active components of the copper-cobalt compound metal oxide is 5 to 25 percent. The self-prepared catalyst carrier is a honeycomb ceramic carrier which is prepared by taking 10 to 30 mass percent of magnesium oxides, 30 to 60 mass percent of silicon oxides and 20 to 40 mass percent of aluminum oxides as main raw materials, roasting the materials at the high temperature of between 1,360 and 1,400 DEG C, and performing acid treatment.

Description

technical field [0001] The invention relates to a catalytic combustion industrial organic waste gas catalyst and a preparation method thereof, belonging to the technical fields of environmental protection catalytic materials and air pollution control. Background technique [0002] Today, benzene, toluene, xylene, ethyl acetate, Acetone, methanol, formaldehyde and other waste gases containing volatile organic compounds (VOCs). The massive emission of these harmful gases is one of the causes of atmospheric photochemical smog, greenhouse effect and ozone layer destruction. At the same time, these organic waste gases are irritating to human eyes, nose, and respiratory tract, and have harmful effects on internal organs such as the heart, lungs, and liver, and the nervous system, and even cause acute and chronic poisoning, and can cause cancer and mutagenesis. [0003] At present, the VOCs removal technologies that have been applied and are being developed in the world mainly in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/75B01J32/00B01J37/02B01J37/08B01J37/34
Inventor 祝社民张志远黄琼陈英文沈树宝
Owner NANJING TECH UNIV