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Denitration catalyst for activated carbon-supported iron-manganese-titanium and preparation method and application thereof

A denitration catalyst, activated carbon technology, applied in chemical instruments and methods, heterogeneous catalyst chemical elements, physical/chemical process catalysts, etc., can solve the problem of insufficient activity, and achieve improved stability, good denitration effect and low cost. Effect

Pending Publication Date: 2019-01-11
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Such as Wu et al. (Wu Z, Jin R, Liu Y, et al. Ceramodified MnO x / TiO 2 as a superior catalyst for NO reduction with NH 3 at low-temperature. Catalysis Communication, 2008, 9(13): 2217-2220. ) prepared a series of Ce-modified MnOx / TiO2 catalysts by sol-gel method, and the experimental results showed that after Ce modification, The denitrification efficiency of the catalyst can be increased from 39% to 84% at 80°C, but its activity is still not high enough

Method used

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  • Denitration catalyst for activated carbon-supported iron-manganese-titanium and preparation method and application thereof
  • Denitration catalyst for activated carbon-supported iron-manganese-titanium and preparation method and application thereof
  • Denitration catalyst for activated carbon-supported iron-manganese-titanium and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Weigh 50g of activated carbon, wash it with deionized water, put it into a 100mL beaker filled with 60 mL of water and soak it for 24 hours, stir it every 1 hour, take the activated carbon out of the water and dry it at 80°C 4h, packaged to obtain pretreated activated carbon, and set aside.

[0033] Weigh 71.91 g of potassium permanganate and dissolve it in 20 mL of 95% ethanol to prepare a solution of potassium permanganate in ethanol. Weigh Fe(NO 3 ) 3 9H 2 Dissolve 36.07g of O powder in 60 mL of water to make an aqueous solution of iron salt, stir for 15 minutes, and prepare TiCl with a mass fraction of 18%.4 aqueous solution, weigh the TiCl 4 57.40 mL of the aqueous solution was slowly added dropwise to the aqueous solution of the iron salt at a rate of 1 drop / s, and stirred. After stirring for 45 minutes, the pretreated activated carbon obtained above was added, and ultrasonication was performed. The ultrasonic power was 550W, and ultrasonication was performed f...

Embodiment 2

[0035] Weigh 50g of activated carbon, wash it with deionized water, put it into a 100mL beaker filled with 60mL of water and soak it for 24 hours, stir it every 1 hour, take the activated carbon out of the water and dry it at 80°C for 4 hours , packaged to obtain pretreated activated carbon, and set aside.

[0036] Weigh 71.91 g of potassium permanganate and dissolve it in 20 mL of 95% ethanol solution to prepare an ethanol solution to form potassium permanganate. Weigh Fe(NO 3 ) 3 9H 2 Dissolve 36.07 g of O powder in 60 mL of water to make an aqueous solution of iron salt, stir for 15 min, and prepare Ti(C 4 h 9 O) 4 aqueous solution, weigh the Ti(C 4 h 9 O) 4 177.76 mL of aqueous solution was slowly added dropwise to the aqueous solution of iron salt at a rate of 1 drop / s. After stirring for 45 minutes, the pretreated activated carbon obtained above was added, and ultrasonication was performed. The ultrasonic power was 550W. After ultrasonication for 30 minutes, the ...

Embodiment 3

[0038] Weigh 75g of activated carbon, wash it with deionized water, put it into a 100mL beaker filled with 90 mL of water and soak it for 24 h, stir it every 1 h, take the activated carbon out of the water and dry it at 80°C 4h, packaged to obtain pretreated activated carbon, and set aside.

[0039] Weigh 107.87 g of potassium permanganate and dissolve it in 30 mL of 95% ethanol solution to prepare an ethanol solution to form potassium permanganate. Weigh Fe(NO 3 ) 3 9H 2 Dissolve 54.11g of O powder in 90mL of water to make an aqueous solution of iron salt, stir for 15min, and prepare TiCl with a mass fraction of 18%. 4 aqueous solution, weigh the TiCl 4 86.1 mL of aqueous solution was slowly added dropwise into the aqueous solution of iron salt at a rate of 1 drop / s. After stirring for 45 minutes, the pretreated activated carbon obtained above was added, and ultrasonication was performed. The ultrasonic power was 550W. After ultrasonication for 30 minutes, the The above-...

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Abstract

The invention discloses a denitration catalyst for activated carbon-supported iron-manganese-titanium and a preparation method and application thereof. The denitration catalyst is composed of a carrier and an active component supported on the carrier. The carrier is activated carbon. The active component is an iron-manganese-titanium oxide. The mass ratio of the active component to the carrier is3-30%. The denitration catalyst utilizes the activated carbon as the carrier, has a developed pore structure and promotes active component loading and gas molecule absorption. The active component mainly comprises an iron-manganese oxide. The preparation method realizes a low production cost. The denitration catalyst has good denitration performances. The titanium oxide as an aid can improve the stability of the catalyst.

Description

technical field [0001] The invention belongs to the technical field of material preparation, and in particular relates to an activated carbon-supported iron-manganese-titanium denitration catalyst and a preparation method and application thereof. Background technique [0002] With the continuous development of modern science and technology, the living standards of human beings are also constantly improving. The reason is that various industries and technologies have promoted the progress of society. These industries and technologies have brought material satisfaction to human beings. , has also brought many problems to people. In recent years, a large amount of greenhouse gas emissions and the "reckless behavior" of smog have gradually entered people's lives and affected human health. Environmental issues have become a part of people's social conversations. An important topic that has aroused great attention across the country. [0003] Various thermal power plants, ironwor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/889B01D53/86B01D53/56
CPCB01D53/8628B01J23/002B01J23/8892B01D2258/0283B01J2523/00B01J35/399B01J35/393B01J35/23B01J2523/47B01J2523/72B01J2523/842
Inventor 王建国张世杰钟兴邵方君张乐乐
Owner ZHEJIANG UNIV OF TECH
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