A flexible glass fiber-based catalyst for vocs catalytic combustion and its preparation method and application

A glass fiber, catalytic combustion technology, used in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, etc., can solve the problem of short life, poor dispersion of active components, specific surface area Small and other problems, to achieve the effect of sufficient resources, low price, and large specific surface area

Active Publication Date: 2018-04-17
NANJING TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the field of photocatalysts, glass fiber is also occasionally used. The patent (CN1962036A) uses glass fiber as a carrier to support nano-titanium dioxide as an active component to photocatalytically degrade organic matter, but there are disadvantages such as poor dispersion of active components, small specific surface area, and short life. In the field of industrial organic waste gas treatment, it is rarely involved

Method used

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  • A flexible glass fiber-based catalyst for vocs catalytic combustion and its preparation method and application
  • A flexible glass fiber-based catalyst for vocs catalytic combustion and its preparation method and application
  • A flexible glass fiber-based catalyst for vocs catalytic combustion and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Immerse the glass fiber completely in 10wt.% hydrochloric acid for 1 hour, take it out and wash it with water until neutral, then put it into deionized water for 80 Hz ultrasonication for 10 minutes, dry it and bake it in a muffle furnace at 500°C for 5 hours.

[0028] (2) Mix pseudo-boehmite (calculated as alumina) and cerium nitrate hexahydrate according to the metal atomic ratio of 2:1, dissolve in 100mL distilled water, stir until completely dissolved, add concentrated nitric acid drop by drop to pH =2, continue to stir for 2 hours, then immerse the glass fiber obtained in the above (1) into the solution, after soaking for 2 hours, take it out and blow it with a high-pressure air gun to blow out the excess solution in the three-dimensional micropores of the glass fiber, and age for 24 hours at 80°C Dry, and then bake in a muffle furnace at 500°C for 5h after drying.

[0029] (3) Add the nitrates of lanthanum, chromium, and copper into 150mL of distilled water ac...

Embodiment 2

[0032] (1) Completely immerse the glass fiber in 20 wt.% hydrochloric acid for 1 hour, take it out and wash it until neutral, then put it into deionized water for 80 Hz ultrasonication for 10 minutes, dry it and bake it in a muffle furnace at 500°C for 5 hours.

[0033] (2) Mix pseudo-boehmite (calculated as alumina) and cerium nitrate hexahydrate according to the metal atomic ratio of 2:1, dissolve in 100mL distilled water, stir until completely dissolved, add concentrated nitric acid drop by drop to pH =2, continue to stir for 2 hours, then immerse the glass fiber obtained in the above (1) into the solution, after soaking for 2 hours, take it out and blow it with a high-pressure air gun to blow out the excess solution in the three-dimensional micropores of the glass fiber, and age for 24 hours at 80°C Dry, and then bake in a muffle furnace at 500°C for 5h after drying.

[0034](3) Add the nitrates of lanthanum, iron, and copper into 150mL of distilled water according to the ...

Embodiment 3

[0037] (1) Completely immerse the glass fiber in 20 wt.% hydrochloric acid for 1 hour, take it out and wash it until neutral, then put it into deionized water for 80 Hz ultrasonication for 10 minutes, dry it and bake it in a muffle furnace at 500°C for 5 hours.

[0038] (2) Mix pseudo-boehmite (calculated as alumina) and cerium nitrate hexahydrate according to the metal atomic ratio of 2:1, dissolve in 100mL distilled water, stir until completely dissolved, add concentrated nitric acid drop by drop to pH =2, continue to stir for 2 hours, then immerse the glass fiber obtained in the above (1) into the solution, after soaking for 2 hours, take it out and blow it with a high-pressure air gun to blow out the excess solution in the three-dimensional micropores of the glass fiber, and age for 24 hours at 80°C Dry, and then bake in a muffle furnace at 500°C for 5h after drying.

[0039] (3) Add the nitrates of lanthanum, cobalt, and copper into 150mL of distilled water according to t...

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Abstract

The invention provides a flexible glass fiber base catalyst used for VOCs catalytic combustion and a preparing method and application thereof. The catalyst has high activity, high heat stability and high mechanical performance, and is applied to the field of catalytic combustion for VOCs removal. A skeleton glass fiber of the catalyst is of a three-dimensional hole-like structure, and is high in porosity, and high in flexibility. When a catalytic combustion device operates, heat transfer is good, swelling coefficient is low, the catalyst is not sintered easily, and for some organic waste gas containing smoke, dust does not deposit on the surface of the catalyst easily.

Description

technical field [0001] The invention relates to a catalyst material capable of treating industrial organic waste gas, in particular to a flexible glass fiber-based catalyst used for catalytic combustion of VOCs and its preparation method and application. Background technique [0002] Volatile organic compounds (VOCs) such as benzene, xylene, acetone, ethyl acetate, and chlorobenzene will be released in the production process of furniture manufacturing, packaging and printing, petrochemical, automobile manufacturing and spraying, electronics and other industries. At present, volatile organic compounds are a class of air pollutants and the main source of photochemical smog and fine particulate matter. This pollutant not only damages the ecosystem, but also damages the five major systems of the human body, which can cause sudden poisoning, cancer and other hazards. Therefore, controlling VOCs is an important measure to improve people's living environment and protect ecology. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/86B01J23/83B01J23/889B01D53/86B01D53/72
CPCB01D53/8668B01D2255/2063B01D2255/2065B01D2255/2073B01D2255/20738B01D2255/20746B01D2255/20761B01D2255/20784B01D2255/2092B01D2255/40B01D2255/70B01J23/002B01J23/83B01J23/868B01J23/8892B01J2523/00B01J2523/17B01J2523/31B01J2523/3706B01J2523/3712B01J2523/67B01J2523/842B01J2523/845B01J2523/72Y02A50/20
Inventor 陈英文阚家伟李兵李林何硕沈树宝
Owner NANJING TECH UNIV
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