Manufacture method of molecular sieve honeycomb body for absorbing volatile organic compounds

A technology for volatile organic compounds and manufacturing methods, applied in separation methods, chemical instruments and methods, inorganic chemistry, etc., can solve the problems of high cost, easy peeling of molecular sieves, low adsorption efficiency, etc., and achieves simple manufacturing process and hydrothermal stability. Good, small pressure drop loss effect

Inactive Publication Date: 2012-03-28
FOSHAN ENVIRONMENTAL PROTECTION TECH & EQUIP RES DEV PROFESSIONAL CENT +3
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a molecular sieve honeycomb body that adsorbs volatile organic compounds and its manufacturing method, aiming to solve the problem that the existing methods for manufacturing honeycomb zeolite molecular sieves easily destroy the lattice of molecular sieves, thereby causing them to lose their adsorption capacity. ; Some preparation procedures are complicated, the cost is expensive, and the molecular sieve is easy to peel off, making its adsorption efficiency lower and lower

Method used

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  • Manufacture method of molecular sieve honeycomb body for absorbing volatile organic compounds
  • Manufacture method of molecular sieve honeycomb body for absorbing volatile organic compounds
  • Manufacture method of molecular sieve honeycomb body for absorbing volatile organic compounds

Examples

Experimental program
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Effect test

Embodiment 1

[0047] At room temperature, add 10g of NaY molecular sieve, 1g of pulp, 1.1g of ceramic fiber, and 3g of attapulgite clay into a 3L glass beaker, then add 300 mL of water to make a suspension, and use a fiber decomposer for 15 minutes to decompose. Add 0.07g of polydimethyldiallyl ammonium chloride under stirring, add 0.15g of anionic polyacrylamide after flocculation, add the suspension to dilute it into a 0.3% suspension, and then weigh 250g / m 2 Wet cardboard, after 5 minutes under pressure at 350kPa, 105 o C baked for 30 minutes to obtain a flat molecular sieve cardboard. Or heat-press the wet paperboard into a corrugated shape, and obtain a corrugated molecular sieve paperboard after drying, with a wave height of 1.8mm and a wave number of 30 / 10cm. Immerse the above-mentioned plane and corrugated molecular sieve paperboards into silica sol for 10 minutes, then alternately stack or roll the plane molecular sieve paperboards and corrugated molecular sieve paperboards into...

Embodiment 2

[0049] At room temperature, add 12g of hydrophobic Y-type molecular sieve, 1.5g of pulp, 1.5g of ceramic fiber, and 3g of attapulgite clay into a 3L glass beaker, then add 500 mL of water to make a suspension, and use a fiber decomposer for 20 minutes , add 0.10g of polydimethyldiallylammonium chloride under slow stirring state, add 0.21g of anionic polyacrylamide after flocculation, add the suspension to dilute it into a 0.5% suspension, and then weigh 300g / m 2 Wet cardboard, after 5 minutes under pressure at 350kPa, 105 o C baked for 30 minutes to obtain a flat molecular sieve cardboard. Or heat-press the wet cardboard into a corrugated shape, and obtain a corrugated molecular sieve cardboard after drying, with a wave height of 1.9mm and a wave number of 32 / 10cm. Immerse the above-mentioned plane and corrugated molecular sieve paperboards into silica sol for 20 minutes, then alternately stack or roll the plane molecular sieve paperboards and corrugated molecular sieve pape...

Embodiment 3

[0051] At room temperature, add 15g of ZSM-5 molecular sieve, 2g of pulp, 2.5g of ceramic fiber, and 3.5g of attapulgite clay into a 3L glass beaker, then add 500 mL of water to make a suspension, and use a fiber decomposer to decompose for 20 minutes. Add 0.25g of polydimethyldiallylammonium chloride under slow stirring state, add 0.41g of anionic polyacrylamide after flocculation phenomenon, add and dilute the suspension into 0.5% suspension, and then the gram weight is 220g / m 2 Wet cardboard, after 5 minutes under pressure at 350kPa, 105 o C baked for 30 minutes to obtain a flat molecular sieve cardboard. Or heat-press the wet cardboard into a corrugated shape, and obtain a corrugated molecular sieve cardboard after drying, with a wave height of 1.7 mm and a wave number of 32 / 10 cm. Immerse the above-mentioned plane and corrugated molecular sieve paperboards into silica sol for 20 minutes, then alternately stack or roll the plane molecular sieve paperboards and corrugated...

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Abstract

The invention discloses a manufacture method of a molecular sieve honeycomb body for absorbing volatile organic compounds, which comprises the steps of: regulating 5-20 percent of ceramic fiber, 5-20 percent of adhesion agent, 5-15 percent of paper pulp and 60-80 percent of zeolite molecular sieve with water into a suspension with concentration of 2-10 percent; defibering and separating the suspension; then slowly stirring and adding poly dimethyl diallyl ammonium chloride, after flocculation occurs, adding anionic polyacrylamide and continuously stirring for 5-15 min and then making a paper plate; and making the made wet paper plate into a planar molecular sieve paper plate and a corrugated molecular sieve paper plate, and alternatively overlapping or coiling the planar molecular sieve paper plate and the corrugated molecular sieve paper plate into a honeycomb structure to obtain the molecular sieve honeycomb body. A zeolite molecular sieve provided by the invention is not easy to peel off, and is easy to process into various shapes; and the molecular sieve honeycomb body can absorb organic matters under different temperatures and humidities.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to a molecular sieve honeycomb body for adsorbing volatile organic compounds and a manufacturing method thereof. Background technique [0002] Volatile Organic Compounds (Volatile Organic Compounds, VOCs) can not only cause serious harm to the environment (for example, destroy the ozone layer, cause the greenhouse effect and pollute the atmosphere), but also can make people feel nauseous, dizzy, limbs weak in a short time, and seriously May damage the brain and nervous system. If the human body is exposed to low concentrations of volatile organic compounds for a long time, there is a potential carcinogenic risk. Volatile organic compounds have numerous pollution emission sources. Outdoor emission sources include factory exhaust gas, vehicle exhaust, combustion of materials containing organic substances, fires, etc.; indoor pollution sources include kitchen cooking, smoking,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/18B01J20/28B01J20/30B01D53/02
CPCY02A50/20
Inventor 刘俊文刘佛傍刘冬薇李军张干邹世春
Owner FOSHAN ENVIRONMENTAL PROTECTION TECH & EQUIP RES DEV PROFESSIONAL CENT
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