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VOCs (voltaic organic chemical) catalytic combustion catalyst with anti-sulfur poisoning function and preparation method thereof

A catalytic combustion and catalyst technology, applied in the direction of catalyst activation/preparation, physical/chemical process catalyst, metal/metal oxide/metal hydroxide catalyst, etc., can solve the problems of high cost and complicated catalyst preparation process, and achieve cost Low, excellent anti-sulfur poisoning ability, the effect of simple process

Inactive Publication Date: 2018-06-19
DATANG NANJING ENVIRONMENTAL PROTECTION TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The preparation method is to first load perovskite on Ce 1-y Zr y o 2 On the composite oxide, the precious metal additives are loaded on it, the catalyst preparation process is relatively complicated, and involves precious metals, and the cost is high

Method used

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  • VOCs (voltaic organic chemical) catalytic combustion catalyst with anti-sulfur poisoning function and preparation method thereof
  • VOCs (voltaic organic chemical) catalytic combustion catalyst with anti-sulfur poisoning function and preparation method thereof
  • VOCs (voltaic organic chemical) catalytic combustion catalyst with anti-sulfur poisoning function and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Preparation:

[0025] (1) Preparation of active components

[0026] Weigh 3.04g of cerium nitrate, 0.89g of antimony acetate, 0.75g of copper nitrate and 1.75g ​​of cobalt nitrate according to the molar ratio of 0.7:0.3:0.4:0.6 and dissolve them in 25.8g of absolute ethanol, stir well to obtain mixed active component solution Ⅰ ;

[0027] (2) Co-catalyst precursor ion solution configuration

[0028] Weigh 1.28g of tetrabutyl titanate and 0.79g of zirconium oxychloride, dissolve in 9.15g of absolute ethanol, and stir evenly to obtain co-catalyst precursor solution II;

[0029] (3) Mix the active component solution prepared in step (1) with the co-catalyst precursor solution prepared in step (2), and stir evenly to obtain solution III;

[0030] (4) Weigh 40.5g TiO 2 , blended with solution Ⅲ, according to: the mass ratio of active component oxides: promoter oxides: carrier oxides is 0.08:0.015:1, prepare catalyst samples, dry in an oven at 80°C for 5h, and place in a ...

Embodiment 2

[0033] Preparation:

[0034] (1) Preparation of active components

[0035] Weigh and dissolve 2.83g of cerium sulfate, 1.27g of ethylene glycol antimony, and 1.88g of copper nitrate in 18.0g of absolute ethanol according to the molar ratio of 0.7:0.3:1, and stir evenly to obtain mixed active component solution I;

[0036] (2) Co-catalyst precursor ion solution configuration

[0037] Weigh 0.73g of tetrabutyl titanate, dissolve it in 3.65g of absolute ethanol, and stir evenly to obtain co-catalyst precursor solution II;

[0038] (3) Mix the active component solution prepared in step (1) with the co-catalyst precursor solution prepared in step (2), and stir evenly to obtain solution III;

[0039] (4) Weigh 17.2g TiO 2, blended with solution Ⅲ, according to: the mass ratio of active component oxide: promoter oxide: carrier oxide is 0.1:0.01:1, prepare the catalyst sample, dry it in an oven at 100°C for 10h, and then place it in a muffle furnace for calcination at 550°C 3h, th...

Embodiment 3

[0042] Preparation:

[0043] (1) Preparation of active components

[0044] Weigh 2.22g of cerium acetate, 0.92g of antimony acetate, 0.32g of copper sulfate and 2.33g of cobalt nitrate according to the molar ratio of 0.7:0.3:0.2:0.8 and dissolve them in 23.16g of absolute ethanol, stir well to obtain mixed active component solution Ⅰ ;

[0045] (2) Co-catalyst precursor ion solution configuration

[0046] Weigh 1.09g of zirconium oxychloride, dissolve it in 6.06g of absolute ethanol, and stir evenly to obtain co-catalyst precursor solution II;

[0047] (3) Mix the active component solution prepared in step (1) with the co-catalyst precursor solution prepared in step (2), and stir evenly to obtain solution III;

[0048] (4) Weigh 20.9g TiO 2 , blended with solution Ⅲ, according to: the mass ratio of active component oxides: promoter oxides: carrier oxides is 0.15:0.02:1, prepare catalyst samples, dry in an oven at 90°C for 8 hours, and place them in a muffle furnace for cal...

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Abstract

The invention discloses a VOCs (voltaic organic chemical) catalytic combustion catalyst with anti-sulfur poisoning function and a preparation method thereof. The catalyst is prepared from an active component and a TiO2 (titanium dioxide) carrier, wherein the active component is CexSbyAzO2; A is selected from at least one of Cu (copper), Co (cobalt) and Mn (manganese); x is greater than or equal to0.6, and is smaller than or equal to 1.0; y is greater than or equal to 0.2, and is smaller than or equal to 0.4; z is greater than 0, and is smaller than or equal to 1. The preparation method comprises the following steps of firstly, preparing the active component; then, preparing a catalyst additive precursor solution; mixing the active component and the catalyst additive precursor solution, drying, and calcining, so as to obtain the catalyst. The prepared VOCs catalytic combustion catalyst has the characteristics that the anti-sulfur poisoning ability is excellent, and the conversion rateof toluene can reach 94%; the cost is low, the technology is simple, the catalyst is suitable for industrialized production, and the like.

Description

technical field [0001] The invention relates to a VOCs catalytic combustion catalyst, in particular to a VOCs catalytic combustion catalyst with anti-sulfur poisoning performance and a preparation method thereof. Background technique [0002] At present, VOCs (Volatile Organic Compounds) is a general term for volatile organic compounds, and emissions come from many industries, including printing, petrochemical and so on. Due to different raw materials and processes, the VOCs emission characteristics of these industries are also quite different. Compared with traditional air pollutants, VOCs have a wide range of pollution sources, involving different pollutants in multiple industries, and their components are complex. [0003] Catalytic combustion technology uses catalysts to make organic waste gas burn flamelessly at a lower ignition temperature, decompose into carbon dioxide and water vapor, and release a large amount of heat to achieve self-heating of the reaction. Compa...

Claims

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Application Information

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IPC IPC(8): B01J23/34B01J23/843B01J23/889B01J37/04B01J37/08
CPCB01J23/002B01J23/34B01J23/8435B01J23/8892B01J37/04B01J37/08B01J2523/00B01J2523/17B01J2523/3712B01J2523/47B01J2523/53B01J2523/845B01J2523/48B01J2523/72
Inventor 严巍王虎李倩董晓真
Owner DATANG NANJING ENVIRONMENTAL PROTECTION TECH
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