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CuVZrLa/ZSM-5 desulphurization denitration catalyst, and preparation method thereof

A desulfurization and denitrification, ZSM-5 technology, applied in the field of flue gas purification, can solve the problems of poor desulfurization and denitrification effects, failure to realize industrial application, etc., and achieve good desulfurization and denitrification effects

Inactive Publication Date: 2017-07-14
湖南云平环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current desulfurization and denitrification catalysts have poor desulfurization and denitrification effects, and have not yet achieved large-scale industrial applications.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A preparation method of CuVZrLa / ZSM-5 desulfurization and denitration catalyst, comprising the steps of:

[0031] Step S1: Calcining 83.8g of the ZSM-5 carrier at 550°C for 4 hours and then cooling it for later use;

[0032] Step S2: Calculate according to the amount of active components and co-catalysts and weigh the pre-materials, dissolve the pre-materials in deionized water, and then add the ZSM-5 carrier obtained in step S1 for mixing;

[0033] Specifically, the active ingredients include 10gCuO and 5g V 2 o 5 , the cocatalyst includes 0.6g Zr and 0.6gLa; correspondingly, take copper nitrate as the pre-material of CuO, weigh 23.5g copper nitrate; 4 VO 3 for V 2 o 5 The front raw material, weigh 3.5g V 2 o 5 ; With Zr(NO 3 ) 4 ·5H 2 O is the front raw material of Zr, weigh 2.8gZr(NO 3 ) 4 ·5H 2 O; with La(NO 3 ) 3 ·6H 2 O is the front raw material of metal La, weigh 2.5gLa; and the copper nitrate, NH 4 VO 3 , Zr(NO 3 ) 4 ·5H 2 O, La(NO 3 ) 3 ·...

Embodiment 2

[0045] A preparation method of CuVZrLa / ZSM-5 desulfurization and denitration catalyst, comprising the steps of:

[0046] Step S1: Calcining 84.5g of the ZSM-5 carrier at 500°C for 6 hours, then cooling for later use;

[0047] Step S2: Calculate according to the amount of active components and co-catalysts and weigh the pre-materials, dissolve the pre-materials in deionized water, and then add the ZSM-5 carrier obtained in step S1 for mixing;

[0048] Specifically, the active ingredients include 8g CuO and 6g V 2 o 5 , the cocatalyst includes 1g Zr and 0.5gLa; correspondingly, copper nitrate is used as the pre-material of CuO, and 18.8g copper nitrate is weighed; 4 VO 3 for V 2 o 5 The front raw material, weigh 3.9gV 2 o 5 ; With Zr(NO 3 ) 4 ·5H 2 O is the front raw material of Zr, weigh 4.7gZr(NO 3 ) 4 ·5H 2 O; with La(NO 3 ) 3 ·6H 2 O is the front raw material of metal La, weigh 2.1gLa; and the copper nitrate, NH 4 VO 3 , Zr(NO 3 ) 4 ·5H 2 O, La(NO 3 ) ...

Embodiment 3

[0060] A preparation method of CuVZrLa / ZSM-5 desulfurization and denitration catalyst, comprising the steps of:

[0061] Step S1: Calcining 81.5g of the ZSM-5 carrier at 600°C for 3 hours, then cooling it for later use;

[0062] Step S2: Calculate according to the amount of active components and co-catalysts and weigh the pre-materials, dissolve the pre-materials in deionized water, and then add the ZSM-5 carrier obtained in step S1 for mixing;

[0063] Specifically, the active ingredients include 15g CuO and 2g V 2 o 5 , the cocatalyst includes 0.5g Zr and 1gLa; correspondingly, take copper nitrate as the pre-material of CuO, weigh 35.3g copper nitrate; 4 VO 3 for V 2 o 5 The front raw material, weigh 1.3gV 2 o 5 ; With Zr(NO 3 ) 4 ·5H 2 O is the front raw material of Zr, weigh 2.4gZr(NO 3 ) 4 ·5H 2 O; with La(NO 3 ) 3 ·6H 2 O is the front raw material of metal La, weigh 4.2gLa; and the copper nitrate, NH 4 VO 3 , Zr(NO 3 ) 4 ·5H 2 O, La(NO 3 ) 3 ·6H 2...

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PUM

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Abstract

The invention discloses a CuVZrLa / ZSM-5 desulphurization denitration catalyst. The CuVZrLa / ZSM-5 desulphurization denitration catalyst comprises, by weight, 80 to 85% of a carrier ZSM-5, an active component comprising 8 to 15% of CuO and 2 to 6% of V2O5, and a cocatalyst comprising 0.5 to 1% of Zr and 0.5 to 1% of La. The CuVZrLa / ZSM-5 desulphurization denitration catalyst is high in desulphurization denitration efficiency. The invention also provides a preparation method of the CuVZrLa / ZSM-5 desulphurization denitration catalyst.

Description

[0001] 【Technical field】 [0002] The invention relates to the field of flue gas purification, in particular to a CuVZrLa / ZSM-5 desulfurization and denitrification catalyst and a preparation method thereof. [0003] 【Background technique】 [0004] The main pollutant in the flue gas released by fossil fuel combustion is SO 2 and NO x , causing serious air pollution. With the rapid development of my country's national economy, SO 2 and NO x Environmental issues have become a key issue affecting the sustainable development of my country's national economy. Therefore, SO 2 and NO x The effective purification of has been widely concerned. [0005] Dust removal, desulfurization, and denitrification in existing flue gas purification technologies at home and abroad are often completed in multiple independent systems, which not only covers a large area, but also has high investment and operating costs. With the popularization of flue gas desulfurization, nitrogen in the atmospher...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/48B01J35/02B01D53/86B01D53/60B01J35/00
CPCB01D53/8637B01J29/48B01J2229/186B01D2258/0283B01J35/00B01J35/30
Inventor 李启云黄书芳
Owner 湖南云平环保科技有限公司