Catalyst for hydrogen production by methanol steam reforming, preparation method and application thereof, and reaction for hydrogen production by methanol steam reforming

A steam reforming and catalyst technology, which is used in catalyst activation/preparation, metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, etc., can solve problems such as poor stability, and achieve stable structure and performance. Effect

Active Publication Date: 2021-08-06
XIAMEN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Although many modified copper-based catalysts have improved a lot compared wi

Method used

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  • Catalyst for hydrogen production by methanol steam reforming, preparation method and application thereof, and reaction for hydrogen production by methanol steam reforming
  • Catalyst for hydrogen production by methanol steam reforming, preparation method and application thereof, and reaction for hydrogen production by methanol steam reforming
  • Catalyst for hydrogen production by methanol steam reforming, preparation method and application thereof, and reaction for hydrogen production by methanol steam reforming

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preparation example Construction

[0040] The present invention also provides a method for preparing a catalyst for steam reforming of methanol described in the above technical solution, comprising the following steps:

[0041] The soluble copper salt, the water-soluble salt corresponding to the oxide carrier, the fullerene C 60 mixed with water to obtain the first mixed solution;

[0042] Mixing the first mixed solution and the precipitant aqueous solution in parallel and aging to obtain a co-precipitate;

[0043]Calcining the co-precipitate to obtain the catalyst for hydrogen production by steam reforming of methanol.

[0044] In the present invention, unless otherwise specified, the raw materials used in the present invention are preferably commercially available products.

[0045] The present invention combines soluble copper salts, water-soluble salts corresponding to oxide carriers, fullerene C 60 Mix with water to obtain the first mixed solution.

[0046] In the present invention, the soluble copper ...

Embodiment 1

[0107] 4.56 g of copper nitrate trihydrate, 3.83 g of zinc nitrate hexahydrate and 3.31 g of aluminum nitrate nonahydrate were dissolved in 100 mL of deionized water to obtain a salt solution. 0.3g fullerene C 60 ultrasonically stirred in 25 mL deionized water to obtain C 60 Dispersion solution. Then the above two solutions were mixed and ultrasonically stirred to obtain the first mixed solution. The ultrasonic power is 40W, the stirring speed is 600r / min, and the ultrasonic stirring time is 30min. After configuring 125mL of 0.45mol / L sodium carbonate solution, add the sodium carbonate solution (6mL / min) and the first mixed solution (6mL / min) into the reactor in parallel, stir and age at 600r / min under heating at 60°C After 4 hours, the aging system was filtered at room temperature, and the filtered solid was washed twice with deionized water, then once with absolute ethanol, and then dried at 100°C for 12 hours after washing until neutral. A coprecipitate was obtained. T...

Embodiment 2

[0109] 4.56 g of copper nitrate trihydrate, 3.66 g of zirconium nitrate pentahydrate and 3.31 g of aluminum nitrate nonahydrate were dissolved in 100 mL of deionized water to obtain a salt solution. 0.3g fullerene C 60 ultrasonically stirred in 25 mL deionized water to obtain C 60 Dispersion solution. Then the above two solutions were mixed and ultrasonically stirred to obtain the first mixed solution. The ultrasonic power is 40W, the stirring speed is 600r / min, and the ultrasonic stirring time is 30min. After configuring 125mL of 0.45mol / L sodium carbonate solution, add the sodium carbonate solution (6mL / min) and the first mixed solution (6mL / min) into the reactor in parallel, stir and age at 600r / min under heating at 60°C After 4 hours, the aging system was filtered at room temperature, and the filtered solid was washed twice with deionized water, then once with absolute ethanol, and then dried at 100°C for 12 hours after washing until neutral. A coprecipitate was obtain...

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Abstract

The invention belongs to the technical field of energy and chemical industry, and provides a catalyst for hydrogen production by methanol steam reforming, a preparation method and application thereof, and a reaction for hydrogen production by methanol steam reforming. The catalyst provided by the invention comprises an oxide carrier, and a copper oxide and fullerene C60 which are loaded on the oxide carrier. The fullerene C60 has excellent electron acceptor properties, can reversibly capture and release electrons, can effectively adjust the electrons on the copper surface, and controls the equilibrium distribution and stability of the copper valence state, thereby ensuring the stability of the catalyst. According to the catalyst provided by the invention, under the conditions that the temperature is 240 DEG C, the pressure is 0.1 MPa, the molar ratio of water to methanol is 1.2: 1, and the mass space velocity of methanol is 4.5 h <-1 >, the hydrogen production rate is 0.4 mol/g/h, the CO selectivity is lower than 0.3%, the structure and performance are kept stable after continuous reaction for 200 h, and the inactivation phenomenon does not occur.

Description

technical field [0001] The invention relates to energy chemical technology [0002] In particular, it relates to a catalyst for hydrogen production by steam reforming of methanol, a preparation method and application thereof, and a hydrogen production reaction by steam reforming of methanol. Background technique [0003] Hydrogen energy is regarded as the clean energy with the most development potential in this century, and it is an important research object for energy storage and conversion. Hydrogen production by steam reforming of methanol has attracted widespread attention due to the advantages of safe and easy-to-obtain raw materials, low reaction temperature, and few by-products. Utilizing methanol and steam reforming, it can be used for on-site hydrogen production to provide hydrogen sources for fuel cells, which not only solves the problem of difficult hydrogen transportation, but also has certain advantages in terms of safety and economy. [0004] The key to hydro...

Claims

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Application Information

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IPC IPC(8): B01J23/80B01J23/83B01J23/72B01J21/18B01J37/03B01J37/08C01B3/32
CPCB01J23/80B01J23/83B01J23/72B01J21/18B01J23/002B01J37/03B01J37/082C01B3/326B01J2523/00C01B2203/1082C01B2203/1076C01B2203/1223C01B2203/1041B01J2523/17B01J2523/27B01J2523/31B01J2523/3712B01J2523/48
Inventor 袁友珠黄乐乐谢素原叶林敏穆亚文梁雪莲
Owner XIAMEN UNIV
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