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Preparation method of CuO and TiO2 modified catalyst for desulfurization and denitrification

A technology of desulfurization, denitrification and catalyst, which is applied in the field of desulfurization, can solve the problems of high denitrification activity and few research reports, and achieve high desulfurization and denitrification rate and good effect

Active Publication Date: 2019-02-22
吉林省隆华环保集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Studies have found that NOx will react with volatile organic compounds under the action of light and heat to produce photochemical smog that destroys the ozone layer. Guo Xikun et al. found that HZSM-5 treated with 3mol / L H2SO4 solution was used as a carrier and loaded with 4% Cu (mass fraction) The Cu / HZSM-5 catalyst has the highest denitrification activity; Li Zhe et al. (2006; 2008) aimed at the instability of the Fe-ZSM-5 catalyst to oxygen and water vapor, carried out Fe / ZSM-5 catalyst decomposing NO activity and rare earth element Research on modulation effect. However, there are few research reports on supported catalysts for simultaneous desulfurization and denitrification

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Prepare samples with a mass ratio of TiO2 and CuO of 1:1. 2gTiO2, 2gCuO, 10ml 2mol / L sodium hydroxide, 30ml absolute ethanol, 8ml tetraethyl orthosilicate, 9g aluminum isopropoxide, 200ml deionized water, 5ml morpholine, 5ml tetraethylammonium hydroxide.

[0019] Step 1. First, 2g of copper oxide, 2g of titanium dioxide, 10ml of 2mol / L sodium hydroxide, and 30ml of absolute ethanol are ultrasonically removed in an oil bath at 80°C for 3 hours under ultrasonic vibration;

[0020] Step 2. Put 8ml of tetraethyl orthosilicate, 9g of aluminum isopropoxide, 50ml of deionized water, 5ml of liquid templating agent morpholine, and 5ml of tetraethylammonium hydroxide in an ultrasonic oscillating water bath at 50°C for 2h to remove impurities;

[0021] Step 3. Add tetraethyl orthosilicate dropwise into the flask, then add 50ml of deionized water and absolute ethanol dropwise at a rate of 20 drops per minute, while heating in an oil bath with magnetic stirring for 3 hours;

[0022...

Embodiment 2

[0031] Prepare samples with a mass ratio of TiO2 and CuO of 1:2. 2gTiO2, 4gCuO, 10ml 2mol / L sodium hydroxide, 30ml absolute ethanol, 8ml tetraethyl orthosilicate, 9g aluminum isopropoxide, 200ml deionized water, 5ml morpholine, 5ml tetraethylammonium hydroxide.

[0032] Step 1. First, 4g of copper oxide, 2g of titanium dioxide, 10ml of 2mol / L sodium hydroxide, and 30ml of absolute ethanol are ultrasonically removed in an oil bath at 80°C for 3 hours under ultrasonic vibration;

[0033] Step 2. Put 8ml of tetraethyl orthosilicate, 9g of aluminum isopropoxide, 50ml of deionized water, 5ml of liquid templating agent morpholine, and 5ml of tetraethylammonium hydroxide in an ultrasonic oscillating water bath at 50°C for 2h to remove impurities;

[0034] Step 3. Add tetraethyl orthosilicate dropwise into the flask, then add 50ml of deionized water and absolute ethanol dropwise at a rate of 20 drops per minute, while heating in an oil bath with magnetic stirring for 3 hours;

[0035...

Embodiment 3

[0044]Prepare samples with a mass ratio of TiO2 and CuO of 1:3. 2gTiO2, 6gCuO, 10ml 2mol / L sodium hydroxide, 30ml absolute ethanol, 8ml tetraethyl orthosilicate, 9g aluminum isopropoxide, 200ml deionized water, 5ml morpholine, 5ml tetraethylammonium hydroxide.

[0045] Step 1. First, 6g of copper oxide, 2g of titanium dioxide, 10ml of 2mol / L sodium hydroxide, and 30ml of absolute ethanol are ultrasonically removed in an oil bath at 80°C for 3 hours under ultrasonic vibration;

[0046] Step 2. Put 8ml of tetraethyl orthosilicate, 9g of aluminum isopropoxide, 50ml of deionized water, 5ml of liquid templating agent morpholine, and 5ml of tetraethylammonium hydroxide in an ultrasonic oscillating water bath at 50°C for 2h to remove impurities;

[0047] Step 3. Add tetraethyl orthosilicate dropwise into the flask, then add 50ml of deionized water and absolute ethanol dropwise at a rate of 20 drops per minute, while heating in an oil bath with magnetic stirring for 3 hours;

[0048]...

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PUM

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Abstract

The invention discloses a preparation method of a CuO and TiO2 modified catalyst for desulfurization and denitrification. The catalyst for desulfurization and denitrification is synthetized through modification methodseans such as ultrasonic oscillation, magnetization and oil bath heating, and the prepared catalyst is good in desulfurization effect.

Description

[0001] This application is a divisional application of the following application: the application date is November 3, 2016, the application number is 201610955961.7, and the title of the invention is a preparation method of a CuO, TiO2 modified desulfurization catalyst. technical field [0002] The invention relates to a preparation method of a CuO and TiO2 modified catalyst used for desulfurization and denitrification, and belongs to the technical field of desulfurization. Background technique [0003] For important petroleum resources, deep processing is required, among which fluid catalytic cracking (FCC) is an essential process. However, the regenerated flue gas of FCC often contains part of the nitrogen present in the raw oil, and is discharged into the atmosphere in the form of NOx, together with SO2. A large amount of NOx and SO2 emissions will cause serious environmental pollution, especially the formation of acid rain, which will not only damage the ecosystem, but a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/46B01D53/86B01D53/56B01D53/50
CPCB01D53/8609B01D53/8628B01J29/46B01J2229/186
Inventor 不公告发明人
Owner 吉林省隆华环保集团有限公司