Methanol decomposition heating catalyst and preparation method thereof

A methanol decomposition and catalyst technology, which is applied in electrochemical generators, fuel cells, electrical components, etc., can solve the problems of loss of use value of catalyst materials, poor durability of catalysts, and reduced service life of catalysts, and achieve higher cost of improvement. , The effect of improving durability and improving structural strength

Inactive Publication Date: 2021-03-05
江苏优尚环境工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, zeolite catalysts mainly include ZSM-5 and SAPO-34. However, the properties and commercial applications of zeolite catalysts are affected by their structure and crystal morphology (including size, acidity and density, etc.), resulting in poor performance, so they are often used. Platinum-based catalysts for catalytic treatment
[0004] However, the current technology mostly uses platinum / palladium dual-component as the active component to catalyze methanol decomposition. Due to the raw material palladium gold used in the catalyst, in the actual use process, the durability of the catalyst is not good. During the long-term on-off process, it is easy to cause the deactivation of this type of catalyst, which reduces the service life of this type of catalyst, thus making the catalyst material lose its use value

Method used

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  • Methanol decomposition heating catalyst and preparation method thereof
  • Methanol decomposition heating catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Take 0.5mol / L zirconium oxychloride solution and heat it in a water bath at 100°C, adjust the pH to 2.0 with mass fraction 0.05mol / L nitric acid, keep warm and reflux for 240h, centrifuge and collect the lower precipitate, wash with deionized water until After the washing solution is neutral, dry it at 100°C to constant weight, collect the dried particles and place them at 400°C for calcination for 3 hours to obtain the calcined matrix zirconia particles; take the zirconia particles and mass ratio 1:10, Soak it in a 1% nickel nitrate solution by mass fraction, stir and mix it and let it stand for 3 hours, dry the soaked zirconia particles at 100°C, then heat-preserve and calcinate it at 400°C for 3 hours, let it stand and cool to room temperature, crush and grind Pass through a 500-mesh sieve to obtain salt additive granules;

[0034] In terms of parts by weight, weigh 12 parts of water, 3 parts of salt additive particles, 1 part of cerium nitrate solution, 1 part of zirc...

Embodiment 2

[0038] Take 0.6mol / L zirconium oxychloride solution and heat it in a water bath at 105°C, adjust the pH to 2.0 with mass fraction 0.05mol / L nitric acid, keep warm and reflux for 245h, centrifuge and collect the lower precipitate, wash with deionized water until After the washing solution becomes neutral, dry it at 105°C to constant weight, collect the dried particles and place them at 450°C for 4 hours of heat preservation and calcination to obtain calcined matrix zirconia particles; take zirconia particles and mix them in a mass ratio of 1:10 Soak it in 1% iron nitrate solution by mass fraction, stir and mix it and let it stand for 4 hours, dry the soaked zirconia particles at 105°C, then heat-preserve and calcinate at 425°C for 4 hours, let it stand and cool to room temperature, crush and grind Pass through a 500-mesh sieve to obtain salt additive granules;

[0039] In terms of parts by weight, weigh 19 parts of water, 4 parts of salt additive particles, 1 part of cerium nit...

Embodiment 3

[0043] Take 0.8mol / L zirconium oxychloride solution and heat it in a water bath at 110°C, adjust the pH to 2.0 with mass fraction 0.05mol / L nitric acid, keep warm and reflux for 250h, centrifuge and collect the lower precipitate, wash with deionized water until After the washing solution becomes neutral, dry it at 110°C until it reaches a constant weight, collect the dried particles and place them at 500°C for calcination for 5 hours to obtain the calcined matrix zirconia particles; take the zirconia particles and mass ratio 1:10, Soak it in a 1% copper nitrate solution, stir and mix it and let it stand for 5 hours, dry the soaked zirconia particles at 110°C, then heat-preserve and calcinate at 450°C for 5 hours, let it stand and cool to room temperature, crush and grind Pass through a 500-mesh sieve to obtain salt additive granules;

[0044] In parts by weight, weigh 25 parts of water, 6 parts of salt additive particles, 2 parts of cerium nitrate solution, 3 parts of zirconiu...

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PUM

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Abstract

The invention relates to the field of hard coatings, and particularly discloses a methanol decomposition heating catalyst and a preparation method thereof. The methanol decomposition heating catalystcomprises a support carrier and an outer coating, the support carrier is a cordierite honeycomb ceramic carrier, and noble metal particles are uniformly dispersed on the outer coating. Cordierite honeycomb ceramic is selected as a basic supporting carrier, the adsorption performance of a cordierite ceramic material is remarkably improved, then the surface of the carrier is coated with an outer coating, the structural strength of the material is improved, finally, methanol can be effectively catalyzed and decomposed into carbon dioxide and water through the loaded noble metal particles. Throughthe porous structure, decomposed carbon dioxide and water can be effectively desorbed, the service life of the noble metal catalyst for methanol decomposition is prolonged, and the durability of thecatalyst material is improved.

Description

technical field [0001] The application relates to the field of catalysts, more specifically, it relates to a methanol decomposition heat-making catalyst and a preparation method thereof. Background technique [0002] In recent years, the requirements for environmental protection have become higher and higher, and the demand for clean and efficient energy has increased sharply. For the heating needs of some small and medium-sized equipment, natural gas resources are highly dependent on imports, and the price is high and difficult to obtain. The initial investment of electric heating equipment is not high. Large but relatively high energy consumption, so need a relatively cheap and clean energy for use. Methanol, as a green renewable resource, is considered as a suitable substitute for traditional fuels, and it can be obtained from natural gas, coal, and different renewable resources. Methanol has a wide range of applications: it can be decomposed to produce hydrogen and carb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/92H01M4/88H01M4/86H01M8/1011
CPCH01M4/8663H01M4/8803H01M4/8842H01M4/8885H01M4/925H01M8/1011Y02E60/50
Inventor 陆勇兵侯涛胡飞
Owner 江苏优尚环境工程有限公司
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