A kind of honeycomb ceramic catalyst carrier and preparation method thereof

A technology of catalyst carrier and honeycomb ceramics, which is applied in the field of honeycomb ceramic materials, can solve the problems of long firing cycle and low qualified rate of finished products, and achieve the effects of improving the qualified rate of firing, inhibiting the combustion of organic matter, and shortening the time

Active Publication Date: 2021-08-31
SHANDONG AOFU ENVIRONMENTAL PROTECTION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] For this reason, the technical problem to be solved by the present invention is to provide a kind of honeycomb ceramic catalyst carrier, to solve the problems of low qualified rate of finished products of the honeycomb ceramic catalyst carrier and too long firing cycle in the prior art;

Method used

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  • A kind of honeycomb ceramic catalyst carrier and preparation method thereof
  • A kind of honeycomb ceramic catalyst carrier and preparation method thereof
  • A kind of honeycomb ceramic catalyst carrier and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0072] The preparation raw material of the honeycomb ceramic catalyst carrier described in this embodiment includes inorganic main materials and additives;

[0073] The total amount of the inorganic main material includes the following components in mass content:

[0074] 20.17wt% flaky alumina with D50=20μm and an aspect ratio of 4:1;

[0075] Highly active magnesium oxide 4.11wt% of D50=2.0 μm;

[0076] Fused quartz 15.24wt% of D50=4.0um;

[0077] D50=15um flake talc 27.12wt%;

[0078] Raw kaolin 33.36wt% of D50=6μm;

[0079] Based on the total amount of the inorganic main material, the additive includes components in the following mass content ratios:

[0080] Decabromodiphenylethane flame retardant 1.5wt%;

[0081] Methylcellulose 4wt%;

[0082] Silicone polyether copolymer 0.5wt%;

[0083] soybean oil 1wt%;

[0084] Water 35wt%.

[0085] The preparation method of the honeycomb ceramic catalyst carrier described in the present embodiment comprises the following st...

Embodiment 2

[0092] The preparation raw material of the honeycomb ceramic catalyst carrier described in this embodiment includes inorganic main materials and additives;

[0093] The total amount of the inorganic main material includes the following components in mass content:

[0094] 20.17wt% of flaky alumina with D50=20 μm and an aspect ratio of 4:1;

[0095] Highly active magnesium oxide 4.11wt% of D50=2.0 μm;

[0096] Fused quartz 15.24wt% of D50=4.0um;

[0097] D50=15um flake talc 27.12wt%;

[0098] Raw kaolin 33.36wt% of D50=6μm;

[0099] Based on the total amount of the inorganic main material, the additive includes components in the following mass content ratios:

[0100] Brominated epoxy resin flame retardant 0.5wt%;

[0101] Methylcellulose 4wt%;

[0102] Silicone polyether copolymer 0.5wt%;

[0103] soybean oil 1wt%;

[0104] Water 35wt%.

[0105] The preparation method of the honeycomb ceramic catalyst carrier described in the present embodiment comprises the following...

Embodiment 3

[0110] The preparation raw material of the honeycomb ceramic catalyst carrier described in this embodiment includes inorganic main materials and additives;

[0111] The total amount of the inorganic main material includes the following components in mass content:

[0112] 20.17wt% flaky alumina with D50=20μm and an aspect ratio of 4:1;

[0113] Highly active magnesium oxide 4.11wt% of D50=2.0 μm;

[0114] Fused quartz 15.24wt% of D50=4.0um;

[0115] D50=15um flake talc 27.12wt%;

[0116] Raw kaolin 33.36wt% of D50=6μm;

[0117] Based on the total amount of the inorganic main material, the additive includes components in the following mass content ratios:

[0118] Brominated polystyrene flame retardant 2.0wt%;

[0119] Methylcellulose 4wt%;

[0120] Silicone polyether copolymer 0.5wt%;

[0121] soybean oil 1wt%;

[0122] Water 35wt%.

[0123] The preparation method of the honeycomb ceramic catalyst carrier described in the present embodiment comprises the following ste...

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Abstract

The invention belongs to the technical field of honeycomb ceramic materials, and in particular relates to a honeycomb ceramic catalyst carrier and a preparation method thereof. The honeycomb ceramic catalyst carrier of the present invention uses alumina, magnesia, fused quartz, talc, and raw kaolin as inorganic main materials, and adds methyl cellulose, bromobenzene flame retardant, organosilicon polyether copolymer, soybean oil And water as a catalyst, especially the addition of low-smoke, low-toxic bromobenzene flame retardant, is a functional additive that imparts flame retardancy to flammable polymers. It can provide flame retardancy of polymer materials and can effectively inhibit The organic matter in the honeycomb ceramic carrier burns, avoiding the temperature difference between the inside and outside of the carrier, and improving the firing pass rate; at the same time, the inhibitory effect of the flame retardant can make the honeycomb ceramic carrier heat up rapidly during the firing process, which helps to improve production efficiency, and has the advantages of energy saving and environmental protection. Advantage.

Description

technical field [0001] The invention belongs to the technical field of honeycomb ceramic materials, and in particular relates to a honeycomb ceramic catalyst carrier and a preparation method thereof. Harmless treatment of chemical NOx. Background technique [0002] The increasingly stringent emission regulations have made the exhaust aftertreatment system a standard component of motor vehicles and ships. The exhaust aftertreatment system uses a catalyst with redox capability to convert the pollutants carbon monoxide CO, hydrocarbons HC and nitrogen oxides NOx in the engine exhaust into harmless carbon dioxide CO 2 , Nitrogen N 2 and water H 2 O, so that the exhaust gas meets the emission standards. [0003] In the prior art, the exhaust post-treatment systems of motor vehicles and ships mostly use honeycomb ceramic materials to carry catalysts (catalyst carriers) to treat pollutants, such as selective catalytic reduction SCR catalyst carriers, oxidation catalytic convers...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/13C04B33/04C04B33/32B01J32/00B01J35/04B01J37/08
CPCB01J35/04B01J37/0018C04B33/04C04B33/13C04B33/32C04B2235/3206C04B2235/3217C04B2235/3418C04B2235/6562
Inventor 黄妃慧张兆合潘吉庆尚磊刘洪月江涛程国园牛思浔王勇伟邢延岭
Owner SHANDONG AOFU ENVIRONMENTAL PROTECTION SCI & TECH
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