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Vertically aligned layered double hydroxides (LDHs) film and application thereof in structured catalysis

A structured catalyst, vertical orientation technology, applied in physical/chemical process catalysts, organic compound/hydride/coordination complex catalysts, chemical instruments and methods, etc., to avoid loss, high catalytic activity, rich variety and application range effect

Active Publication Date: 2012-02-08
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there are no literature and patent reports on the preparation of ternary LDHs films on aluminum substrates and the preparation of such ternary films into structural catalysts for the catalytic application of mercaptan systems at home and abroad.

Method used

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  • Vertically aligned layered double hydroxides (LDHs) film and application thereof in structured catalysis
  • Vertically aligned layered double hydroxides (LDHs) film and application thereof in structured catalysis
  • Vertically aligned layered double hydroxides (LDHs) film and application thereof in structured catalysis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Step A: Select 450cm 2 (30cm×15cm×0.2cm) aluminum sheet, then roll the aluminum sheet into a 600ml sealed cup, then ultrasonically clean it with acetone for 15 minutes, then ultrasonically clean it with ethanol for 15 minutes, and finally clean it with deionized water After 10 minutes, take out the cleaned aluminum sheet for later use;

[0037] Step B: 8.20g (0.032mol) of solid Mg(NO 3 ) 2 ·6H 2 O and 11.64g (0.194mol) of urea were dissolved in a 650mL sealed cup, and 600ml of deionized water was added and stirred to fully dissolve and disperse evenly (solution I);

[0038] Step C: 8.20g (0.032mol) of Mg(NO 3 ) 2 ·6H 2 O solid, 1.86g of Ni(NO 3 ) 2 ·6H 2 O and 11.64g (0.194mol) of urea were dissolved in a 650mL sealed cup, and 600ml of deionized water was added and stirred to fully dissolve and disperse evenly (solution II);

[0039] Step D: Immerse the aluminum sheet cleaned in step A into solution I and seal it, then place the sealed cup in a 70°C water bath...

Embodiment 2

[0041] Step A: Select 450cm 2 (30cm×15cm×0.2cm) aluminum sheet, then roll the aluminum sheet into a 600ml sealed cup, then ultrasonically clean it with acetone for 15 minutes, then ultrasonically clean it with ethanol for 15 minutes, and finally clean it with deionized water After 10 minutes, take out the cleaned aluminum sheet for later use;

[0042] Step B: 8.20g (0.032mol) of solid Mg(NO 3 ) 2 ·6H 2 O and 11.64g (0.194mol) of urea were dissolved in a 650mL sealed cup, and 600ml of deionized water was added and stirred to fully dissolve and disperse evenly (solution I);

[0043] Step C: 8.20g (0.032mol) of Mg(NO 3 ) 2 ·6H 2 O solid, 0.47g of Ni(NO 3 ) 2 ·6H 2 O and 11.64g (0.194mol) of urea were dissolved in a 650mL sealed cup, and 600ml of deionized water was added and stirred to fully dissolve and disperse evenly (solution II);

[0044] Step D: Immerse the aluminum sheet cleaned in step A into solution I and seal it, then place the sealed cup in a 70°C water bath...

Embodiment 3

[0046] Step A: Select 450cm 2 (30cm×15cm×0.2cm) aluminum sheet, then roll the aluminum sheet into a 600ml sealed cup, then ultrasonically clean it with acetone for 15 minutes, then ultrasonically clean it with ethanol for 15 minutes, and finally clean it with deionized water After 10 minutes, take out the cleaned aluminum sheet for later use;

[0047] Step B: 9.50g (0.032mol) of solid Zn(NO 3 ) 2 ·6H 2 O and 11.64g (0.194mol) of urea were dissolved in a 650mL sealed cup, and 600ml of deionized water was added and stirred to fully dissolve and disperse evenly (solution I);

[0048] Step C: 9.50g (0.032mol) of Zn(NO 3 ) 2 ·6H 2 O solid, 1.89g of Cu(NO 3 ) 2 ·6H 2 O and 11.64g (0.194mol) of urea were dissolved in a 650mL sealed cup, and 600ml of deionized water was added and stirred to fully dissolve and disperse evenly (solution II);

[0049] Step D: Immerse the aluminum sheet cleaned in step A into solution I and seal it, then place the sealed cup in a 70°C water bath...

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Abstract

The invention discloses a vertically aligned layered double hydroxides (LDHs) film and a preparation method thereof, and belongs to the technical field of an inorganic functional material and controlled preparation thereof. The vertically aligned LDHs film has the characteristics of good stability, high catalysis efficiency, longer catalysis life, easy regeneration procedure and the like in the event that the film is applied to structured catalytic oxidation deodorization of mercaptan. The preparation method of a structured catalyst comprises the following steps: preparing vertically aligned binary and ternary LDHs films on a pure aluminum substrate by an in-situ growth method; calcining the obtained LDHs films at the temperature of 400-500 DEG C to obtain a complex metal oxide film; and then loading cobalt sulfonated phthalocyanine (CoSPc) on the complex metal oxide film to obtain the structured catalyst. The obtained catalyst can be applied to catalytic oxidation of mercaptan and shows the advantages of high catalytic activity and longer catalysis life, thus having potential application prospect in deodorization in petroleum industry.

Description

[0001] Field [0002] The invention belongs to the technical field of inorganic functional materials and their controllable preparation, and specifically relates to a vertically oriented hydrotalcite-like film and a preparation method thereof, which is applied to structural catalytic oxidation of mercaptan deodorization, and has good stability and high catalytic efficiency , longer catalytic life and easy regeneration. Background technique [0003] Mercaptans are weakly acidic organic sulfides that exist in most petroleum products (such as kerosene, naphtha, aviation fuel, liquefied petroleum gas, etc.). Mercaptan is highly corrosive, has a bad smell, and seriously endangers human health. It is also a free radical initiator, which seriously affects the quality and stability of oil products. The removal of mercaptans and conversion to non-toxic and odorless disulfides is commonly referred to as "deodorisation". At present, the most widely used in the oil desulfurization indus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/28B01J31/26C10G27/00
Inventor 卫敏孙智勇靳兰段雪
Owner BEIJING UNIV OF CHEM TECH
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