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A kind of copper-containing catalyst and its preparation method and application

A technology of copper catalyst and carbon monoxide, which is applied in catalytic reactions, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of time-consuming and complicated preparation process, and achieve improved activity, low reduction temperature, and large industrial applicability Effect

Active Publication Date: 2022-07-12
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the current research, there are many traditional methods to obtain highly dispersed catalysts, such as sol-gel method, hydrothermal method, deposition precipitation method, etc., but the preparation process of these methods is complicated and time-consuming

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Dissolve 0.60g of copper nitrate in 2mL of deionized water, add 2g of mesoporous microsphere silica gel, stir until fully mixed, dry at 110°C for 12h, roast at 500°C in a muffle furnace, pass through a 20-120 mesh sieve after cooling, Take the material between 20 and 120 mesh, put it into a fixed-bed reactor, and program the temperature to 500 °C at a rate of 8 °C / min under a 30 mL / min helium atmosphere for 0.5 h to obtain a copper-containing catalyst.

Embodiment 2

[0037] Dissolve 1.20g of copper nitrate in 2mL of deionized water, add 2g of mesoporous microsphere silica gel, stir until fully mixed, dry at 90°C for 10h, roast at 500°C in a muffle furnace, pass through a 20-120 mesh sieve after cooling, Take the material between 20 and 120 mesh, put it into a fixed-bed reactor, and program the temperature to 500 °C at a rate of 5 °C / min under a 15 mL / min helium atmosphere for 0.5 h to obtain a copper-containing catalyst.

Embodiment 3

[0039] Dissolve 0.80g of copper nitrate in 2mL of deionized water, add 2g of mesoporous microsphere silica gel, stir until fully mixed, dry at 110°C for 12h, calcinate at 500°C in a muffle furnace, and pass through a 20-120 mesh sieve after cooling. Take the material between 20 and 120 mesh, put it into a fixed-bed reactor, and under a nitrogen atmosphere of 30 mL / min, program the temperature to 500 °C at a rate of 10 °C / min for 0.5 h to obtain a copper-containing catalyst.

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PUM

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Abstract

The invention discloses a copper-containing catalyst and a preparation method and application thereof. The preparation method is as follows: a soluble copper salt is supported on a silicon-based material by an equal volume impregnation method, dried, calcined, put into a reactor after sieving and passed through The gas is flowed, and the temperature is raised to obtain a copper-containing catalyst. When the prepared copper-containing catalyst is used for low-temperature catalytic oxidation of carbon monoxide, the conversion rate of carbon monoxide can be significantly improved. With a simple treatment method, a catalyst with high dispersion and high active components is obtained, which has a good application prospect.

Description

technical field [0001] The invention relates to the field of catalysts, in particular to a copper-containing catalyst and a preparation method and application thereof. Background technique [0002] Nowadays, air pollution is getting more and more attention. Various toxic and harmful gases in the air are becoming a hot topic, and carbon monoxide is one of them. Studies have shown that the affinity of carbon monoxide and hemoglobin is 200 to 300 times that of oxygen. Carbon monoxide and hemoglobin can easily form carboxyhemoglobin after inhalation, thereby preventing the combination of oxygen and hemoglobin, resulting in a decrease in the oxygen-carrying capacity of blood, resulting in a strong poisoning reaction. , causing great harm to the human body. At the same time, with the development of economy and society, the consumption of fossil energy and the number of motor vehicles increase year by year, which will increase the emission of carbon monoxide year by year. Carbon ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/06B01J23/72B01D53/62B01D53/86
CPCB01J31/06B01J23/72B01D53/864B01J2231/70B01D2256/22B01D2257/502B01D2258/06Y02A50/20
Inventor 陆继长赵玉慧罗永明方健张哲玮黄子君
Owner KUNMING UNIV OF SCI & TECH