Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Harmful gas removal medium and preparation method thereof

A technology for harmful gases and media, applied in the field of air purification, can solve the problems of low mechanical strength, small porosity and pore size of solid filter media, affecting performance and effect, etc. In large-scale production and manufacturing, the effect of saving production costs

Pending Publication Date: 2020-12-22
NANJING YUNXIANG NANO TECH CO LTD
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the content of potassium permanganate continues to increase, by-products will be formed due to the reaction with pollutants in the gas, causing the blockage of the pores of the harmful gas removal medium, which will eventually reduce the gas treatment efficiency, thus limiting the promotion and application of this technology. application
In the Chinese patent "CN200380104041.5 high-capacity solid filter medium", 13-25 wt% permanganate (including potassium permanganate, sodium permanganate, magnesium permanganate, barium permanganate, lithium permanganate or a combination thereof), the solid filter medium is manufactured by spraying alumina with a heated aqueous permanganate solution and synchronously granulating, since this method increases the concentration of the permanganate solution, thereby further improving the gas content of the solid filter medium Treatment efficiency, but because the particles in the solid filter medium are dispersed, the porosity and pore size are small, and the mechanical strength of the solid filter medium is low, which affects the performance and effect of long-term use

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

Embodiment 1

[0029] 1) Activated alumina 510g, NaHCO 3130g, 160g of binder composed of 12wt% Portland cement and 88wt% calcium hydroxide, mixed evenly and added to the continuously rotating granulation disc in three batches; the inclination angle of the granulation disc is 30°, 40rpm, spray 300 ml (383g) of sodium permanganate aqueous solution of 32.1wt% concentration on the above-mentioned mixture simultaneously; The injection of sodium permanganate solution adopts metering pump injection, and injection speed is 20ml / min;

[0030] 2) When the above-mentioned mixture becomes a particle with a diameter of 4-6mm, stop the disc granulation and injection work, and take out the particles;

[0031] 3) Weigh the granulated particles and calculate the granulation ratio.

Embodiment 2

[0033] 1) Activated alumina 510g, NaHCO 3 130g, 160g of binder composed of 15wt% Portland cement and 85wt% calcium hydroxide, mixed evenly and added in three batches to the continuously rotating granulation disc; the inclination angle of the granulation disc is 30°, 40rpm, spray 300 ml (383g) of sodium permanganate aqueous solution of 32.1wt% concentration on the above-mentioned mixture simultaneously; The injection of sodium permanganate solution adopts metering pump injection, and injection speed is 20ml / min;

[0034] 2) When the above-mentioned mixture becomes a particle with a diameter of 4-6mm, stop the disc granulation and injection work, and take out the particles;

[0035] 3) Weigh the granulated particles and calculate the granulation ratio.

Embodiment 3

[0037] 1) Activated alumina 510g, NaHCO 3 130g, 160g of binder composed of 18wt% Portland cement and 82wt% calcium hydroxide, mixed evenly and added in three batches to the continuously rotating granulation disc; the inclination angle of the granulation disc is 30°, 40rpm, spray 300 ml (383g) of sodium permanganate aqueous solution of 32.1wt% concentration on the above-mentioned mixture simultaneously; The injection of sodium permanganate solution adopts metering pump injection, and injection speed is 20ml / min;

[0038] 2) When the above-mentioned mixture becomes a particle with a diameter of 4-6mm, stop the disc granulation and injection work, and take out the particles;

[0039] 3) Weigh the granulated particles and calculate the granulation ratio.

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

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Login to View More

Abstract

The invention provides a harmful gas removal medium, and mainly relates to a permanganate harmful gas removal medium. According to the invention, by adding proper types and quantities of a binder anda foaming agent, the mechanical strength of the harmful gas removal medium is ensured, the porosity inside the harmful gas removal medium is improved, and the possibility of gas passage blockage caused by permanganate precipitation is reduced. Therefore, the use amount of permanganate is reduced, the preparation process is simplified, the service life is prolonged, the maintenance cost is reduced,and the preparation method is more suitable for large-scale production and manufacturing.

Description

technical field [0001] The invention belongs to the field of air purification, in particular to a permanganate harmful gas (mainly including sulfide (mainly hydrogen sulfide, sulfur dioxide), ammonia, formaldehyde, urea, nitrogen oxides, mercaptans, amines, Common harmful gases such as ethylene) removal medium and preparation method thereof. Background technique [0002] In recent years, with the continuous development of social economy, a large amount of fossil fuels have been used, and the problem of air pollution is very serious. According to the "2017 China Ecological Environment Status Bulletin" published by the Ministry of Ecology and Environment of the People's Republic of China, the main air pollutants in China are ozone, nitrogen dioxide (NO 2 ) and sulfur dioxide (SO 2 ), among which industrial waste gas is the main source of air pollutants. [0003] The removal of these toxic, harmful and odorous gases is mainly achieved by physical adsorption and chemical adso...

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): B01D53/81B01D53/48B01D53/52B01D53/56B01D53/58B01D53/72B01D53/50
CPCB01D53/48B01D53/523B01D53/56B01D53/58B01D53/72B01D53/81B01D2257/306B01D2257/702B01D2257/708B01D53/50B01D53/52B01J20/08B01J20/10B01J20/32
Inventor 张世著童宁军石欣超
Owner NANJING YUNXIANG NANO TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com