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Denitration catalyst for ship and preparation method of denitration catalyst

A denitration catalyst and technology for ships, applied in the field of flue gas denitration, can solve the problems of aggravating air pollution in ports and surrounding areas, and achieve the effects of high denitration efficiency, simple and reliable process

Inactive Publication Date: 2016-11-16
SANLONG CATALYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, every ship and truck that enters the port, while bringing goods and economic development, also contributes to air pollution in the port and surrounding areas

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Get the metatitanic acid 88.89g after cleaning (in terms of TiO2 weight percent is 40wt%) and put into 500ml burner, add a small amount of deionized water to make a slurry, then add zirconium oxychloride 78.6g (in the form of ZrO 2 Percentage by weight is 30wt%), make it fully stirred, then add cerium nitrate 12.61g (in the form of CeO 2 The weight percentage is 5wt%), niobium oxalate 0.47g (as Nb 2 o 5 Weight percentage is 5wt%), iron nitrate 25.3g (as Fe 2 o 3 The percentage by weight is 5wt%), and the above materials are fully mixed evenly by vigorous stirring. Pour into kneader afterwards, add attapulgite 21.1g (the percentage by weight is 20% w based on attapulgite solid content), scallop powder 5g, cotton fiber 0.48g, polyethylene oxide 0.8g, carboxymethyl fiber Sodium 0.25g, stearic acid 0.2g, ethanolamine 1.5g. After fully kneading to make it have a certain toughness, take it out and put it on a small compression molding machine, and extrude it into a small...

Embodiment 2

[0035] Get metatitanic acid 88.89g (in terms of TiO 40wt% by weight) and put it into a 500ml burner, add a small amount of deionized water to make a slurry, then add 78.6g of zirconium oxychloride (in terms of ZrO 2 Percentage by weight is 30wt%), make it fully stirred, then add cerium nitrate 17.66g (in the form of CeO 2 The weight percentage is 7wt%), niobium oxalate 2.36g (as Nb 2 o 5 The percentage by weight is 0.5wt%), iron nitrate 25.3g (as Fe 2 o 3 The percentage by weight is 5wt%), and the above materials are fully mixed evenly by vigorous stirring. Pour into kneader afterwards, add attapulgite 19.4g (the percentage by weight is 17.5%w based on attapulgite solid content), scallop powder 5g, cotton fiber 0.48g, polyethylene oxide 0.8g, carboxymethyl fiber Sodium 0.25g, stearic acid 0.2g and ethanolamine 1.5g. After fully kneading to make it tough, take it out and put it on a small compression molding machine, and extrude it into a small honeycomb catalyst precursor...

Embodiment 3

[0037] Get metatitanic acid 88.89g (in terms of TiO 40wt% by weight) and put it into a 500ml burner, add a small amount of deionized water to make a slurry, then add 78.6g of zirconium oxychloride (in terms of ZrO 2 Percentage by weight is 30wt%), make it fully stirred, then add cerium nitrate 22.7g (in the form of CeO 2 The weight percentage is 9wt%), niobium oxalate 4.73g (as Nb 2 o 5 Weight percent is 1wt%), iron nitrate 25.3g (as Fe 2 o 3 The percentage by weight is 5wt%), and the above materials are fully mixed evenly by vigorous stirring. Pour into kneader afterwards, add attapulgite 16.7g (the weight percentage is 15wt% in terms of attapulgite solid content), scallop powder 5g, cotton fiber 0.48g, polyethylene oxide 0.8g, carboxymethyl cellulose 0.25g, stearic acid 0.2g and ethanolamine 1.5g. After fully kneading to make it tough, take it out and put it on a small compression molding machine, and extrude it into a small honeycomb catalyst precursor. The catalyst p...

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PUM

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Abstract

The invention belongs to the technical field of smoke denitration, and relates to a denitration catalyst for a ship and a preparation method of the denitration catalyst. The preparation method comprises the following steps of 1, catalyst precursor preparation, wherein metatitanic acid, zirconium oxychloride, cerous nitrate or CeO2, oxalic acid and oxalic acid are mixed to be uniform, after attapulgite is added, kneading and extrusion molding are carried out, and a catalyst precursor is obtained; 2, catalyst precursor activation, wherein the catalyst precursor is calcined at high temperature after being dried, and the catalyst is obtained. The catalyst is high in denitration efficiency and suitable for large-scale production.

Description

technical field [0001] The invention belongs to the technical field of flue gas denitrification, and relates to a preparation method of a denitrification catalyst for ships. Background technique [0002] The air pollution prevention and control plan that has attracted the attention of all walks of life across the country has been launched. Heavy polluting industries such as steel, chemicals, and building materials (including the glass industry) will also face the grim fate of a new reshuffle under the "world's strictest" air pollution prevention and control policy! Under this pressure and background, various denitrification technologies and corresponding catalysts have also emerged one after another. [0003] Among many denitrification technologies, selective catalytic reduction (SCR) is the mainstream technology. [0004] As we all know, wherever there is high temperature, harmful nitrogen oxides will be produced. The control of nitrogen oxides from stationary sources has...

Claims

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Application Information

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IPC IPC(8): B01J23/847B01D53/94B01D53/56
CPCB01D53/9413B01J23/002B01J23/8474B01J2523/00B01J2523/3712B01J2523/47B01J2523/48B01J2523/56B01J2523/842
Inventor 沈雁军沈炳龙沈雁鸣沈雁来王忠英
Owner SANLONG CATALYST
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