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
View PDF6 Cites 8 Cited by
  • 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 econom

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0032] Example 1

[0033] Take 88.89g of cleaned metatitanic acid (40wt% in terms of TiO2), 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 ZrO 2 The weight percentage is 30wt%), make it fully stirred, and then add 12.61g of cerium nitrate (in CeO 2 The weight percentage is 5wt%), niobium oxalate 0.47g (in Nb 2 O 5 The weight percentage is 5wt%), ferric nitrate 25.3g (as Fe 2 O 3 The weight percentage is 5 wt %), and the above materials are thoroughly mixed uniformly by vigorous stirring. Then pour into a kneader, add 21.1g of attapulgite (weight percent based on attapulgite solid content is 20%w), 5g of succulent powder, 0.48g of cotton fiber, 0.8g of polyethylene oxide, carboxymethyl fiber 0.25g of stearic acid, 0.2g of stearic acid, and 1.5g of ethanolamine. After fully kneading to make it have a certain toughness, it is taken out and placed on a small press molding machine, and extruded i...

Example Embodiment

[0034] Example 2

[0035] Take 88.89g of metatitanic acid (40wt% in terms of TiO2) 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 ZrO 2 The weight percentage is 30wt%), make it fully stirred, and then add 17.66g of cerium nitrate (with CeO 2 The weight percentage is 7wt%), niobium oxalate 2.36g (in Nb 2 O 5 The weight percentage is 0.5wt%), ferric nitrate 25.3g (as Fe 2 O 3 The weight percentage is 5 wt %), and the above materials are thoroughly mixed uniformly by vigorous stirring. Then pour into a kneader, add attapulgite 19.4g (weight percentage based on attapulgite solid content is 17.5%w), 5g of sapella powder, 0.48g of cotton fiber, 0.8g of polyethylene oxide, carboxymethyl fiber 0.25 g of stearic acid, 0.2 g of stearic acid and 1.5 g of ethanolamine. After fully kneading to make it tough, it is taken out and placed on a small compression molding machine, and extruded into small pi...

Example Embodiment

[0036] Example 3

[0037] Take 88.89g of metatitanic acid (40wt% in terms of TiO2) 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 ZrO 2 The weight percentage is 30wt%), make it fully stirred, and then add 22.7g of cerium nitrate (with CeO 2 The weight percentage is 9wt%), niobium oxalate 4.73g (in Nb 2 O 5 The weight percentage is 1wt%), ferric nitrate 25.3g (as Fe 2 O 3 The weight percentage is 5 wt %), and the above materials are thoroughly mixed uniformly by vigorous stirring. Then pour it into a kneader, add attapulgite 16.7g (weight percent based on attapulgite solid content is 15wt%), 5g succulent powder, 0.48g cotton fiber, 0.8g polyethylene oxide, carboxymethyl cellulose 0.25g, stearic acid 0.2g and ethanolamine 1.5g. After fully kneading to make it tough, it is taken out and placed on a small compression molding machine, and extruded into small pieces of honeycomb catalyst precu...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products