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Solid catalyst, preparation method and applications thereof

A technology of solid catalysts and substrates, applied in chemical instruments and methods, chemical elements of heterogeneous catalysts, physical/chemical process catalysts, etc., can solve problems such as shedding, reduced activity, and difficulty in coating nano-powders

Inactive Publication Date: 2017-11-24
傅国琳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Various spraying methods such as room temperature spraying, flame spraying and plasma spraying can be used to coat nanomaterials on the substrate more uniformly, but such methods are relatively complicated and require corresponding equipment, but the nanocatalysts obtained by such methods are in the In some harsh environments with high humidity and high flow rate, it will fall off and reduce the activity; the impregnation method is relatively simple and convenient, but it is very difficult to evenly and firmly coat the nano powder on the substrate

Method used

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  • Solid catalyst, preparation method and applications thereof
  • Solid catalyst, preparation method and applications thereof

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Embodiment 1

[0108] Embodiment 1, a kind of solid catalyst, it is characterized in that: be coated with transition metal nano-oxide on the porous ceramic substrate, the nano particle distribution of its coating is uniform, and diameter is lower than 50nm on average, and does not agglomerate, is evenly coated on The surface and interior of porous ceramic substrates.

Embodiment 2

[0109] Embodiment 2, a kind of solid catalyst as described in embodiment 1, is characterized in that:

[0110] The porous ceramic matrix is ​​respiratory ring fragments or ceramic balls, and the specific surface area is greater than or equal to 1 square meter per gram.

Embodiment 3

[0111] Embodiment 3, a solid catalyst as described in Embodiment 1, is characterized in that: it can be used stably in the environment where the flow rate of gas or liquid is 0 to 6 meters per second.

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Abstract

The present invention relates to a solid catalyst, a preparation method and applications thereof, wherein the preparation method comprises: coating a porous ceramic substrate with a transition metal nanometer oxide. A main purpose of the present invention is to provide a novel solid catalyst and a preparation method thereof so as to solve the ozone escaping problem in different industrial environments. According to the present invention, the solid catalyst is used to efficiently and catalytically decompose ozone so as to eliminate the ozone, wherein the solid catalysts coated with different coating substances are tried to eliminate the ozone; and the solid catalyst cannot shed and can maintain the efficiently catalytic decomposition of ozone in the continuously-harsh industrial environments (such as high temperature, high flow rate, high pressure and high humidity).

Description

(1) Technical field: [0001] The invention relates to a solid catalyst, especially a solid catalyst comprising one or more transition metal nano-oxides coated on a porous ceramic composite material, a preparation method and an application in decomposing ozone. (two) background technology: [0002] Among industrial catalysts, transition metal oxide catalysts occupy an important position and can be used as catalysts for many reactions, especially widely used in catalytic reactions of redox mechanisms. [0003] Ozone escape is a problem that often occurs when ozone is used as a raw material in industrial production and industrial pollution control. Since ozone is harmful to the environment and human body, it is of great significance to deal with ozone escape. Ozone is a light blue gas with a special smell. It has strong oxidizing, antibacterial and antiviral properties. It is widely used in nature, industrial production and daily life. Ozone is also a toxic substance commonly f...

Claims

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Application Information

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IPC IPC(8): B01J23/889B01J23/75B01D53/86B01D53/66
CPCB01D53/8675B01J23/002B01J23/75B01J23/8892B01J2523/00Y02A50/20
Inventor 傅国琳维杰彭美芳
Owner 傅国琳
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