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Catalyst for methanol steam reforming hydrogen production, and preparation and use methods thereof

A steam reforming and catalyst technology, applied in chemical instruments and methods, physical/chemical process catalysts, hydrogen, etc., to achieve the effects of maintaining hydrogen production efficiency, preventing sintering and aggregation, and improving activity

Active Publication Date: 2020-02-28
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is difficult for conventional copper-based catalysts to maintain a constant hydrogen production efficiency under a wide range of reaction conditions

Method used

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  • Catalyst for methanol steam reforming hydrogen production, and preparation and use methods thereof
  • Catalyst for methanol steam reforming hydrogen production, and preparation and use methods thereof
  • Catalyst for methanol steam reforming hydrogen production, and preparation and use methods thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0017] A methanol steam reforming hydrogen production catalyst, the catalyst is a component comprising Cu-Mn-N-C / Al 2 o 3 The method compound, in which the molar ratio of metal Cu:Mn:Al is 1:0.05:2. The preparation method is:

[0018] (1) Get 2.42kg copper nitrate trihydrate, 0.126kg manganese nitrate tetrahydrate and 0.28kg urotropine mixture, slowly join in the solid mixture in deionized water, stir and dissolve while adding water, until reaching clear transparent solution; (2) get 7.5kg aluminum nitrate nonahydrate and make saturated solution, in preparing sodium hydroxide solution, under mechanical stirring, sodium hydroxide solution is added dropwise in the aluminum nitrate solution, until the aluminum nitrate solution is neutral , generate colloidal aluminum hydroxide; (3) the mixed solution in step (1) is added in the aluminum hydroxide suspension obtained in step (2); (4) the suspension obtained in step (3) is heated to Stir at 60°C until the solution is completely ...

Embodiment 2

[0021] A methanol steam reforming hydrogen production catalyst, the catalyst is a component comprising Cu-Mn-N-C / Al 2 o 3 The method compound, in which the molar ratio of metal Cu:Mn:Al is 1:0.15:4. The preparation method is:

[0022] (1) Get 2.42kg copper nitrate trihydrate, 0.378kg manganese nitrate tetrahydrate and 0.56kg urotropine mixture, slowly add deionized water into the solid mixture, stir and dissolve while adding water until reaching a clear and transparent solution; (2) get 15kg aluminum nitrate nonahydrate and be made into saturated solution, in preparation sodium hydroxide solution, under mechanical stirring, sodium hydroxide solution is added dropwise in the aluminum nitrate solution, until aluminum nitrate solution is neutral, Generate colloidal aluminum hydroxide; (3) the mixed solution in step (1) is added in the aluminum hydroxide suspension obtained in step (2); (4) the suspension obtained in step (3) is heated to 60 ℃, stirred until the solution was co...

Embodiment 3

[0025] A methanol steam reforming hydrogen production catalyst, the catalyst is a component comprising Cu-Mn-N-C / Al 2 o 3 The legal complex, in which the molar ratio of metal Cu:Mn:Al is 1:0.3:5. The preparation method is:

[0026] (1) Get 2.42kg copper nitrate trihydrate, 0.756kg manganese nitrate tetrahydrate and 0.7kg urotropine mixture, slowly join in the solid mixture in deionized water, stir and dissolve while adding water, until reaching clear transparent solution; (2) get 18.75kg aluminum nitrate nonahydrate and make saturated solution, in preparing sodium hydroxide solution, under mechanical stirring, sodium hydroxide solution is added dropwise in the aluminum nitrate solution, until the aluminum nitrate solution is neutral , generate colloidal aluminum hydroxide; (3) the mixed solution in step (1) is added in the aluminum hydroxide suspension obtained in step (2); (4) the suspension obtained in step (3) is heated to Stir at 60°C until the solution is completely ev...

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Abstract

The invention discloses a catalyst for methanol steam reforming hydrogen production, and preparation and use methods of the catalyst. The catalyst is a compound containing Cu-Mn-N-C / Al2O3, and the molar ratio of Cu to Mn to Al is 1: (0.05-0.3): (2-5). According to the copper-based catalyst disclosed by the invention, a Cu-Mn-N active compound can be generated by doping nitrogen, and catalyst activity can be remarkably improved by the Cu-Mn-N active compound; meanwhile, a carbon layer which is used for coating a confinement structure is generated, an obtained coated structure can effectively prevent sintering aggregation of active component copper nanoparticles, improve catalyst stability, maintain the constant hydrogen production efficiency of the catalyst in a wide reaction condition range, improve catalyst high stability and high activity. The catalyst has a potential market value.

Description

technical field [0001] The invention relates to the field of transition metal catalysts, in particular to a methanol steam reforming hydrogen production catalyst and a preparation and use method. Background technique [0002] Hydrogen is an ideal clean fuel, which has some advantages that fossil fuels cannot match, such as: high heat release efficiency; only water is the waste produced in the combustion process, and basically zero emissions can be achieved when used as fuel cell fuel; strong versatility , can be used in most terminal combustion equipment; it is also a renewable cycle fuel that can be transported and stored. As one of the ideal new alternative energy sources, hydrogen energy has attracted widespread attention. [0003] Methanol is considered to be an ideal liquid hydrogen storage platform molecule due to its many advantages such as high hydrogen storage capacity per unit volume, low activation temperature, few by-products, low cost and easy availability. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24C01B3/32
CPCB01J27/24C01B3/326C01B2203/0233C01B2203/1076C01B2203/1223Y02P20/52Y02E60/50
Inventor 刘迪
Owner SHANDONG UNIV OF SCI & TECH