Unlock instant, AI-driven research and patent intelligence for your innovation.

Atmospheric treatment composite fiber filter material loaded with denitration catalyst, and preparation method

The technology of denitration catalyst and composite fiber is applied in the field of atmospheric control composite fiber filter material and preparation field loaded with denitration catalyst, which can solve the problems of low denitration efficiency, easy deactivation at high temperature, unstable properties, etc., and achieves high mechanical strength and adsorption capacity. , The effect of poor high temperature resistance and short service life

Inactive Publication Date: 2019-02-12
CHENDU NEW KELI CHEM SCI CO LTD
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems of unstable properties of traditional denitrification catalysts, high-temperature deactivation, and low denitrification efficiency, as well as the functional defect of single dust removal of existing air purification filter materials, the present invention proposes an air treatment composite fiber filter material loaded with denitrification catalysts and its preparation method, thereby enhancing the loading stability of the denitrification catalyst and carrier, and having excellent denitrification and dust removal performance

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Atmospheric treatment composite fiber filter material loaded with denitration catalyst, and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) After blending polyimide fiber and polytetrafluoroethylene fiber, put it into the calcium hydroxide suspension prepared by mixing quicklime and water, take it out after ultrasonic treatment, and obtain the treated fiber filter material; polyimide The average fineness of amine fiber is 5 dtex, and the average length is 50mm; the average fineness of polytetrafluoroethylene fiber is 5 dtex, and the average length is 50mm; the ultrasonic frequency of ultrasonic treatment is 35kHz, and the ultrasonic treatment is 52min; in the preparation of fiber filter material, The mass ratio of water, quicklime, polyimide fiber and polytetrafluoroethylene fiber is 100:7:23:23;

[0030] (2) Dissolve cerium acetate, manganese nitrate, and ethanol in deionized water to prepare a mixed solution, add hydrogen peroxide with 8% mass of cerium acetate, then add the treated fiber filter material, and slowly add sodium silicate under heating and stirring conditions solution and reacted for 3 h...

Embodiment 2

[0035] (1) After blending polyimide fiber and polytetrafluoroethylene fiber, put it into the calcium hydroxide suspension prepared by mixing quicklime and water, take it out after ultrasonic treatment, and obtain the treated fiber filter material; polyimide The average fineness of amine fiber is 4dtex, and the average length is 30mm; the average fineness of polytetrafluoroethylene fiber is 3dtex, and the average length is 20mm; the ultrasonic frequency of ultrasonic treatment is 30kHz, and the ultrasonic treatment is 60min; in the preparation of fiber filter material, water , quicklime, polyimide fiber, polytetrafluoroethylene fiber mass ratio is 100:4:20:18;

[0036] (2) Dissolve cerium acetate, manganese nitrate, and ethanol in deionized water to prepare a mixed solution, add hydrogen peroxide with 8% mass of cerium acetate, then add the treated fiber filter material, and slowly add sodium silicate under heating and stirring conditions solution and reacted for 2 hours to obtai...

Embodiment 3

[0040] (1) After blending polyimide fiber and polytetrafluoroethylene fiber, put it into the calcium hydroxide suspension prepared by mixing quicklime and water, take it out after ultrasonic treatment, and obtain the treated fiber filter material; polyimide The average fineness of amine fiber is 8 dtex, and the average length is 70mm; the average fineness of polytetrafluoroethylene fiber is 6dtex, and the average length is 80mm; the ultrasonic frequency of ultrasonic treatment is 50kHz, and the ultrasonic treatment is 40min; in the preparation of fiber filter material, The mass ratio of water, quicklime, polyimide fiber and polytetrafluoroethylene fiber is 100: 8: 25: 26;

[0041] (2) Dissolve cerium acetate, manganese nitrate, and ethanol in deionized water to prepare a mixed solution, add hydrogen peroxide with 8% mass of cerium acetate, then add the treated fiber filter material, and slowly add sodium silicate under heating and stirring conditions solution and reacted for 5...

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
Finenessaaaaaaaaaa
Lengthaaaaaaaaaa
Finenessaaaaaaaaaa
Login to View More

Abstract

The invention provides an atmospheric treatment composite fiber filter material loaded with a denitration catalyst, and a preparation method. The preparation method of the composite fiber filter material includes the steps of blending polyimide fibers and polytetrafluoroethylene fibers, adding the mixture into calcium hydroxide suspension liquid for ultrasonic treatment, adding a mixed solution ofcerium acetate, manganese nitrate, ethanol and deionized water after taking out the mixture, adding a sodium silicate solution for reaction while heating and stirring are performed, and performing washing and drying to obtain the composite fiber filter material. The composite fiber filter material has the advantages that the load stability of the denitration catalyst and a carrier is improved greatly; the mechanical strength and the adsorption capacity of the filter material are high, and the filter material has good high-temperature resistance performance; poison of some adhesive and corrosive fine dust to the catalyst can be prevented, and the service life is prolonged.

Description

technical field [0001] The invention relates to the technical field of air purification, in particular to an air treatment composite fiber filter material loaded with a denitrification catalyst and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of China's economy and the implementation of environmental protection industry policies, the country's control of air pollutants has become increasingly strict, especially the emission standards of dust concentration, nitrogen oxides, sulfur oxides and other pollutants in industrial flue gas Increasingly, especially with the increase of coal consumption, nitrogen oxides (NO X ), is one of the main pollutants of air pollution. The country is vigorously advocating the development of clean coal-burning technology and implementing ultra-low emission standards of air pollutants. Therefore, flue gas denitrification technology is very important. [0003] Flue gas denitrification techn...

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): B01D39/14B01D46/00B01D53/88B01D53/56
CPCB01D39/14B01D46/0001B01D46/0027B01D53/8628B01D53/88B01D2239/0216B01D2239/12B01D2255/2065B01D2258/06
Inventor 陈庆高锋曾军堂
Owner CHENDU NEW KELI CHEM SCI CO LTD