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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 low qualified rate of finished products and long firing cycle, and achieve the effects of improving the qualified rate of firing, inhibiting the combustion of organic matter, and avoiding the temperature difference between inside and outside

Active Publication Date: 2019-01-04
SHANDONG AOFU ENVIRONMENTAL PROTECTION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Honeycomb ceramic catalyst carrier and preparation method thereof
  • Honeycomb ceramic catalyst carrier and preparation method thereof
  • Honeycomb ceramic catalyst carrier and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0073] The preparation raw material of the honeycomb ceramic catalyst carrier described in this embodiment includes inorganic main materials and additives;

[0074] The total amount of the inorganic main material includes the following components in mass content:

[0075] 20.17wt% flaky alumina with D50=20μm and an aspect ratio of 4:1;

[0076] Highly active magnesium oxide 4.11wt% of D50=2.0 μm;

[0077] Fused quartz 15.24wt% of D50=4.0um;

[0078] D50=15um flake talc 27.12wt%;

[0079] Raw kaolin 33.36wt% of D50=6μm;

[0080] Based on the total amount of the inorganic main material, the additive includes components in the following mass content ratios:

[0081] Decabromodiphenylethane flame retardant 1.5wt%;

[0082] Methylcellulose 4wt%;

[0083] Silicone polyether copolymer 0.5wt%;

[0084] soybean oil 1wt%;

[0085] Water 35wt%.

[0086] The preparation method of the honeycomb ceramic catalyst carrier described in the present embodiment comprises the following st...

Embodiment 2

[0093] The preparation raw material of the honeycomb ceramic catalyst carrier described in this embodiment includes inorganic main materials and additives;

[0094] The total amount of the inorganic main material includes the following components in mass content:

[0095] 20.17wt% of flaky alumina with D50=20 μm and an aspect ratio of 4:1;

[0096] Highly active magnesium oxide 4.11wt% of D50=2.0 μm;

[0097] Fused quartz 15.24wt% of D50=4.0um;

[0098] D50=15um flake talc 27.12wt%;

[0099] Raw kaolin 33.36wt% of D50=6μm;

[0100] Based on the total amount of the inorganic main material, the additive includes components in the following mass content ratios:

[0101] Brominated epoxy resin flame retardant 0.5wt%;

[0102] Methylcellulose 4wt%;

[0103] Silicone polyether copolymer 0.5wt%;

[0104] soybean oil 1wt%;

[0105] Water 35wt%.

[0106] The preparation method of the honeycomb ceramic catalyst carrier described in the present embodiment comprises the following...

Embodiment 3

[0111] The preparation raw material of the honeycomb ceramic catalyst carrier described in this embodiment includes inorganic main materials and additives;

[0112] The total amount of the inorganic main material includes the following components in mass content:

[0113] 20.17wt% flaky alumina with D50=20μm and an aspect ratio of 4:1;

[0114] Highly active magnesium oxide 4.11wt% of D50=2.0 μm;

[0115] Fused quartz 15.24wt% of D50=4.0um;

[0116] D50=15um flake talc 27.12wt%;

[0117] Raw kaolin 33.36wt% of D50=6μm;

[0118] Based on the total amount of the inorganic main material, the additive includes components in the following mass content ratios:

[0119] Brominated polystyrene flame retardant 2.0wt%;

[0120] Methylcellulose 4wt%;

[0121] Silicone polyether copolymer 0.5wt%;

[0122] soybean oil 1wt%;

[0123] Water 35wt%.

[0124] 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 particularly relates to a honeycomb ceramic catalyst carrier and a preparation method of the catalyst carrier. The honeycomb ceramic catalyst carrier takes aluminum oxide, magnesium oxide, electroquartz, talcum and raw kaoline as inorganic main materials; methylcellulose, a bromobenzene fire retardant, an organosilicon polyether copolymer, bean oil and water are added as catalysts; particularly, the halogen-free, low-smoke and low-toxicity bromobenzene fire retardant is added, and is a functional assistant endowing a flammable polymer with flame retardance; the flame retardance can be provided for a high polymer material; combustion of organic matter in the honeycomb ceramic carrier can be effectively inhibited; a temperature difference inside and outside the carrier is avoided; a qualified rate of firing is increased; at the same time, due to an inhibiting effect of the fire retardant, the temperature ofthe honeycomb ceramic carrier rises quickly in a firing process to contribute to improving production efficiency; and the carrier has the advantages of energy conservation and environmental protection.

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 Applications(China)
IPC IPC(8): C04B33/13C04B33/04C04B33/32B01J32/00B01J35/04B01J37/08
CPCC04B33/04C04B33/13C04B33/32B01J37/0018C04B2235/3206C04B2235/3217C04B2235/6562C04B2235/3418B01J35/56
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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