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Preparation method of denitration-catalyst-supported polyphenylene sulfide (PPS) filter material

A technology of denitrification catalyst and polyphenylene sulfide, applied in chemical instruments and methods, physical/chemical process catalysts, separation methods, etc., can solve the problems of low NOx adsorption and removal rate, achieve long service life, high denitrification rate, Good water resistance

Inactive Publication Date: 2011-08-10
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the flue gas tail gas contains a large amount of NOx that pollutes the atmosphere, and although the PPS filter material has a high dust removal rate, it only has a very low adsorption and removal rate for NOx

Method used

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  • Preparation method of denitration-catalyst-supported polyphenylene sulfide (PPS) filter material
  • Preparation method of denitration-catalyst-supported polyphenylene sulfide (PPS) filter material

Examples

Experimental program
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Effect test

Embodiment 1

[0040] Take 2g of PPS filter material and immerse in 30% nitric acid at 80°C for 1 hour to acidify, and use 500ml of deionized water to neutralize it to obtain PPSN with a volume of 15mL; dry it in air at 105°C for 5 hours; Manganese acetate and 0.042g citric acid were prepared into a 15mL aqueous solution, and magnetically stirred at room temperature for 1 hour; PPSN was immersed in manganese acetate and citric acid solution for 2 hours; dried in a water bath at 60°C, and then dried in air at 65°C for 5 hours , and finally dried in air at 105°C for 12 hours; calcined in nitrogen atmosphere at 350°C for 6 hours to obtain loaded MnO x Polyphenylene sulfide (PPS) filter material.

Embodiment 2

[0042] Take 2g of PPS filter material and immerse in 30% nitric acid at 80°C for 1 hour to acidify, and wash with 500ml of deionized water until neutral to obtain PPSN with a volume of 15mL; dry in air at 105°C for 5 hours; dissolve 0.245g of tetrahydrate Manganese acetate and 0.210g citric acid were mixed into 15mL aqueous solution, and magnetically stirred at room temperature for 1 hour; PPSN was immersed in manganese acetate and citric acid solution for 2 hours; dried in a water bath at 60°C, and then dried in air at 65°C for 5 hours , and finally dried in air at 105°C for 12 hours; calcined in nitrogen atmosphere at 350°C for 6 hours to obtain loaded MnO x Polyphenylene sulfide (PPS) filter material.

Embodiment 3

[0044] Take 2g of PPS filter material and immerse in 30% nitric acid at 80°C for 1 hour to acidify, and wash with 500ml of deionized water until neutral to obtain PPSN with a volume of 15mL; dry in air at 105°C for 5 hours; dissolve 0.49g of tetrahydrate Manganese acetate and 0.42g of citric acid were prepared into 15mL aqueous solution, and magnetically stirred at room temperature for 1 hour; PPSN was immersed in manganese acetate and citric acid solution for 2 hours; dried in a water bath at 60°C, and then dried in air at 65°C for 5 hours , and finally dried in air at 105°C for 12 hours; calcined in nitrogen atmosphere at 350°C for 6 hours to obtain loaded MnO x Polyphenylene sulfide (PPS) filter material.

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Abstract

The invention provides a supported polyphenylene sulfide (PPS) filter material which belongs to the field of filter materials. The supported PPS filter material is prepared by the following method: making a PPS fiber into a PPS filter material; performing water bath acidification in nitric acid, and washing with deionized water to neutrality; drying to obtain acidified polyphenylene sulfide nitride (PPSN); preparing a catalyst into a solution and stirring; soaking PPSN in the solution; performing water bath baking, and drying in air; and calcining in a nitrogen atmosphere to obtain the supported PPS filter material with denitration function. The denitration-catalyst-supported PPS filter material provided by the invention can be used as a dedusting agent and a denitration agent at the sametime, is prepared by simple steps, realizes dedusting and denitration functions as well, and has the advantages of high denitration rate, high temperature resistance, acid-base resistance, good waterresistance, long service life and the like; and a new application field of the filter-bag catalytic denitration is created.

Description

technical field [0001] The invention belongs to the technical field of material preparation, and in particular relates to a polyphenylene sulfide filter material prepared by loading a denitrification catalyst on a polyphenylene sulfide filter material. Background technique [0002] In the field of flue gas dust removal, the bag filter has become the first choice for flue gas dust removal, and the filter material has the advantages of simple process flow, fast production speed, high output and labor productivity, low cost, wide source of available fiber, and easy process control. , product variety and other advantages, in recent years, the output has grown rapidly all over the world. [0003] Polyphenylene sulfide (PPS) filter material is a filter material with excellent high temperature resistance, acid and alkali resistance, and hydrolysis resistance. It has various characteristics as a high-performance fiber and is especially suitable for use in high-humidity flue gas. Ho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/16B01D53/86B01D53/56B01D46/02B01J31/32B01J31/26B01J31/28
Inventor 林锦贤郑玉婴蔡伟龙
Owner FUZHOU UNIV
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