Polymer carrier supported catalyst composite material, application and preparation method thereof

Abstract

The invention discloses a polymer carrier supported catalyst composite material as well as application and a preparation method thereof. According to the present invention, a powder catalyst is supported and fixed on the waste or product polymer material by using an impregnation-melting method so as to prepare the molded easily-circulating supported catalyst, such that various defects existing in the direct use of the powder catalyst are solved; the catalyst material has the advantages of high quality, guaranteed catalytic capability, simple preparation process, easy control and low cost. According to the method, recycling of the waste plastics can be achieved, the waste plastics and conventional chemical raw materials are used for preparing the catalytic material for wastewater or waste gas treatment, so that environmental friendliness is achieved, waste is treated with waste, and maximization of material resource utilization is achieved. The supported catalyst is large in specific surface area, low in bulk density, high in mechanical strength, high in porosity, large in fluid flux, large in loading capacity, good in chemical stability and low in production cost, and can be applied to the fields of Fenton reaction, Fenton-like reaction, SCR catalytic reduction and catalytic combustion.

Description

technical field

[0001] The invention relates to a powder catalyst, its application and its preparation method, in particular to a carrier-loaded composite catalyst, its application and its preparation method, and is applied in the technical field of catalyst composite materials. Background technique

[0002] The powder catalyst is directly used for waste water and waste gas treatment, and the catalyst is easy to lose, resulting in waste of materials and adverse effects on the environment. At the same time, nano-powder catalysts are easy to agglomerate, resulting in reduced catalytic activity, and because of the difficulty in recycling nano-powder catalysts, it is difficult to reuse them, which leads to obstacles in practical application.

[0003] Traditional carriers used for powder catalyst immobilization mainly include glass, ceramics, stainless steel mesh, metal titanium sheets, etc. However, the surface of glass and stainless steel carriers is too smooth, and the cataly...

Examples

Embodiment 1

[0039] In this embodiment, a polymer carrier-supported catalyst composite material has a block shape, and the polymer block is used as a carrier matrix, and the catalyst particles are partially combined with the surface of the polymer block to distribute the catalyst particles on the surface of the polymer block. The surface of the polymer block forms a uniformly distributed array of catalytically active sites; the polymer block adopts a cavity block with a through-channel, so that the fluid can pass through the through-channel smoothly, and the outer surface of the polymer block, The inner surface of the penetrating channel forms the surface of the carrier matrix; the shape of the outer surface of the polymer block satisfies the following conditions: when the polymer carrier-loaded catalyst composite material is stacked in modules, any polymer carrier-loaded catalyst composite material block Openings at both ends of the through channel are kept open without being closed, so th...

Embodiment 2

[0054] This embodiment is basically the same as Embodiment 1, especially in that:

[0055] In this embodiment, a preparation method of powdered catalyst / polymer shaped catalyst is prepared by dipping-melting method into shaped catalyst Mn 3 o 4 / EPE, including the following steps:

[0056] Step 1: Mn 3 o 4 The preparation process of: this step is identical with embodiment one;

[0057] The second step: Mn 3 o 4 / EPE preparation process:

[0058] a. This step is the same as in Embodiment 1;

[0059] b. This step is the same as in Embodiment 1;

[0060] c. After completing the continuous multiple immersion-drying treatments in the above step b, use Mn 3 o 4 Fusion method of nanoparticles and polymers, the built-in powder catalyst Mn 3 o 4 / EPE polymer molding material precursor oven temperature is raised to 125 ° C, and at this temperature, the powder catalyst Mn 3 o 4 / EPE polymer molding material precursor is subjected to heat preservation and heat treatment for ...

Embodiment 3

[0066] This embodiment is basically the same as the previous embodiment, and the special features are:

[0067] In this embodiment, a preparation method of powdered catalyst / polymer shaped catalyst is prepared by dipping-melting method into shaped catalyst Mn 3 o 4 / EPE, including the following steps:

[0068] Step 1: Mn 3 o 4 The preparation process of: this step is identical with embodiment one;

[0069] The second step: Mn 3 o 4 / EPE preparation process:

[0070] a. This step is the same as in Embodiment 1;

[0071] b. This step is the same as in Embodiment 1;

[0072] c. After completing the continuous multiple immersion-drying treatments in the above step b, use Mn 3 o 4 Fusion method of nanoparticles and polymers, the built-in powder catalyst Mn 3 o 4 / EPE polymer molding material precursor oven temperature is raised to 155 ° C, and at this temperature, the powder catalyst Mn 3 o 4 / EPE polymer molding material precursor is subjected to heat preservation an...

technical field

[0001] The invention relates to a powder catalyst, its application and its preparation method, in particular to a carrier-loaded composite catalyst, its application and its preparation method, and is applied in the technical field of catalyst composite materials. Background technique

[0002] The powder catalyst is directly used for waste water and waste gas treatment, and the catalyst is easy to lose, resulting in waste of materials and adverse effects on the environment. At the same time, nano-powder catalysts are easy to agglomerate, resulting in reduced catalytic activity, and because of the difficulty in recycling nano-powder catalysts, it is difficult to reuse them, which leads to obstacles in practical application.

[0003] Traditional carriers used for powder catalyst immobilization mainly include glass, ceramics, stainless steel mesh, metal titanium sheets, etc. However, the surface of glass and stainless steel carriers is too smooth, and the cataly...

Examples

Embodiment 1

[0039] In this embodiment, a polymer carrier-supported catalyst composite material has a block shape, and the polymer block is used as a carrier matrix, and the catalyst particles are partially combined with the surface of the polymer block to distribute the catalyst particles on the surface of the polymer block. The surface of the polymer block forms a uniformly distributed array of catalytically active sites; the polymer block adopts a cavity block with a through-channel, so that the fluid can pass through the through-channel smoothly, and the outer surface of the polymer block, The inner surface of the penetrating channel forms the surface of the carrier matrix; the shape of the outer surface of the polymer block satisfies the following conditions: when the polymer carrier-loaded catalyst composite material is stacked in modules, any polymer carrier-loaded catalyst composite material block Openings at both ends of the through channel are kept open without being closed, so th...

Embodiment 2

[0054] This embodiment is basically the same as Embodiment 1, especially in that:

[0055] In this embodiment, a preparation method of powdered catalyst / polymer shaped catalyst is prepared by dipping-melting method into shaped catalyst Mn 3 o 4 / EPE, including the following steps:

[0056] Step 1: Mn 3 o 4 The preparation process of: this step is identical with embodiment one;

[0057] The second step: Mn 3 o 4 / EPE preparation process:

[0058] a. This step is the same as in Embodiment 1;

[0059] b. This step is the same as in Embodiment 1;

[0060] c. After completing the continuous multiple immersion-drying treatments in the above step b, use Mn 3 o 4 Fusion method of nanoparticles and polymers, the built-in powder catalyst Mn 3 o 4 / EPE polymer molding material precursor oven temperature is raised to 125 ° C, and at this temperature, the powder catalyst Mn 3 o 4 / EPE polymer molding material precursor is subjected to heat preservation and heat treatment for ...

Embodiment 3

[0066] This embodiment is basically the same as the previous embodiment, and the special features are:

[0067] In this embodiment, a preparation method of powdered catalyst / polymer shaped catalyst is prepared by dipping-melting method into shaped catalyst Mn 3 o 4 / EPE, including the following steps:

[0068] Step 1: Mn 3 o 4 The preparation process of: this step is identical with embodiment one;

[0069] The second step: Mn 3 o 4 / EPE preparation process:

[0070] a. This step is the same as in Embodiment 1;

[0071] b. This step is the same as in Embodiment 1;

[0072] c. After completing the continuous multiple immersion-drying treatments in the above step b, use Mn 3 o 4 Fusion method of nanoparticles and polymers, the built-in powder catalyst Mn 3 o 4 / EPE polymer molding material precursor oven temperature is raised to 155 ° C, and at this temperature, the powder catalyst Mn 3 o 4 / EPE polymer molding material precursor is subjected to heat preservation an...

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