Denitrifying honeycomb heat accumulator and preparation method thereof

A regenerator and honeycomb technology, which is applied in the field of denitrification honeycomb regenerators, can solve the problems that other methods are in the experimental research stage or pilot test stage, etc., and achieves significant emission reduction effect, improved wear resistance and corrosion resistance, and saves energy. cost effect

Pending Publication Date: 2017-05-31
SHENWU TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many flue gas denitrification methods, but currently only the selective catalytic reduction method and the selective non-catalytic reduction method have been widely used in industry, and other methods are currently in the experimental research stage or pilot stage

Method used

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  • Denitrifying honeycomb heat accumulator and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0090] Utilize the method for the embodiment of the present invention to prepare the nitric acid honeycomb heat accumulator, specifically as follows:

[0091] (1) Refining of heat storage body body

[0092] Mix 28g of burnt gemstone, 30.4g of cordierite, 7.2g of kaolin, 14.4g of quartz, 2.59g of carbide slag powder, 0.5g of methylcellulose and 0.91g of glycerin, and add an appropriate amount of deionized water for kneading and refining to obtain mud Material spare.

[0093] The mud block is aged, the temperature of the aging environment is 30°C, and the aging time is 48 hours. After vacuum refining and vacuum extrusion, it is made into a honeycomb body blank of the required specification.

[0094] Then, the honeycomb body blank is sent to a dryer for shaping and drying, and fired at 1200°C to obtain a heat storage body blank.

[0095] (2)TiO 2 -Al 2 o 3 Preparation of composite oxides

[0096] Take 12.13g of titanyl sulfate and 5.06g of aluminum chloride, dissolve them i...

Embodiment 2

[0110] (1) Refining of heat storage body body

[0111] Mix 21g of burnt gemstone, 28g of cordierite, 7.7g of kaolin, 13.3g of quartz, 5g of carbide slag powder, 1g of methyl cellulose and 2g of glycerin, and add an appropriate amount of deionized water for kneading and refining to obtain mud for later use.

[0112] The mud block is aged, the temperature of the aging environment is 25°C, and the aging time is 48 hours. After vacuum refining and vacuum extrusion, it is made into a honeycomb body blank of the required specification.

[0113] Then, the honeycomb body blank is sent to a dryer for shaping and drying, and fired at 1200°C to obtain a heat storage body blank.

[0114] (2)TiO 2 -Al 2 o 3 Preparation of composite oxides

[0115] Take 10.74g of titanyl sulfate and 8.96g of aluminum chloride, dissolve them in an appropriate amount of deionized water, and stir them evenly to prepare titanium source and aluminum source solutions respectively, and the concentration ratio ...

Embodiment 3

[0129] (1) Refining of heat storage body body

[0130] Mix 17.4g of burnt gemstone, 30g of cordierite, 4.2g of kaolin, 8.4g of quartz, 8.16g of calcium carbide slag powder, 3.79g of methylcellulose and 3.05g of glycerin, and add an appropriate amount of deionized water for kneading and refining to obtain mud Material spare.

[0131] The mud block is aged, the temperature of the aging environment is 30°C, and the aging time is 48 hours. After vacuum refining and vacuum extrusion, it is made into a honeycomb body blank of the required specification.

[0132] Then, the honeycomb body blank is sent to a dryer for shaping, drying, and firing at 1200°C to obtain a finished product.

[0133] (2)TiO 2 -Al 2 o 3 Preparation of composite oxides

[0134] Take 10.99g of titanyl sulfate and 18.32g of aluminum chloride, dissolve them in an appropriate amount of deionized water, and stir them evenly to prepare titanium source and aluminum source solutions respectively, and the concentra...

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Abstract

The invention discloses a denitrifying honeycomb heat accumulator and a preparation method thereof. The denitrifying honeycomb heat accumulator comprises a honeycomb heat accumulator and a loaded mixture, wherein the honeycomb heat accumulator comprises inorganic powder; and the loaded mixture, which is loaded to the honeycomb heat accumulator, comprises a denitrifying catalyst and an additive; the additive comprises carbide slag. The denitrifying honeycomb heat accumulator has the functions of denitrification and heat accumulation without independently arranging the heat accumulator and the denitration catalyst, so that the arranging space can be lowered and the cost is lowered. By means of the heat-accumulating effect of the heat accumulator, the heat accumulator is arranged as required, so that the catalyst in the heat accumulator is stabilized in the optimum temperature range for denitration reaction, and therefore, the denitration efficiency is high and the emission-reducing effect is obvious.

Description

technical field [0001] The invention relates to a denitration honeycomb heat storage body and a method for preparing the denitration honeycomb heat storage body. Background technique [0002] With the rapid development of my country's economy, fossil fuels such as natural gas, oil and coal have been more widely used, making environmental problems increasingly serious, which has caused a series of environmental problems, such as acid rain, ozone layer destruction, greenhouse effect, etc., making us The living environment is becoming more and more severe. my country's coal-based energy structure determines that the emissions of nitrogen oxides and sulfur oxides in our country have always been high. The emission of a large amount of polluting gases has made environmental problems increasingly serious, not only seriously affecting the production and life of our people. , and is not conducive to the sustainable development of my country's economy. Therefore, environmental issues ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/88B01D53/56C04B35/195B01J23/888C09K5/14
CPCY02P20/584B01D53/8628B01D53/88B01D2258/0283B01J23/002B01J23/888B01J2523/00C04B35/195C04B35/62204C04B2235/3418C04B2235/349C09K5/14B01J2523/47B01J2523/31B01J2523/55B01J2523/69
Inventor 吴道洪钟贵全宋敏洁陈珊王志军
Owner SHENWU TECH GRP CO LTD
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