Preparation method of hydrogen production composite catalyst

A composite catalyst and sodium hydroxide technology, which is applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve the problems of poor bond breaking ability, high reaction temperature, and easy Carbon deposition and other issues

Inactive Publication Date: 2013-12-11
TAIYUAN UNIV OF TECH
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Problems solved by technology

[0003] Hydrogen production by steam reforming of bioethanol is one of the most important research topics of low-carbon energy. Catalysts are used in the hydrogen production process of steam reforming of ethanol; there are two types of catalysts, one is noble metal catalysts, such as Pt, Rh, Ru, Ir, etc. are catalysts with active components. These catalysts have high activity and high selectivity, but the reaction temperature is high and expensive, which is not conducive to large-scale industrial production; the other is a common metal catalyst, such as Cu

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  • Preparation method of hydrogen production composite catalyst
  • Preparation method of hydrogen production composite catalyst
  • Preparation method of hydrogen production composite catalyst

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Embodiment 1

[0075] The method of using the hydrogen production composite catalyst is as follows:

[0076] (1) Hydrogen production by steam reforming of ethanol is carried out in an atmospheric fixed-bed micro-reactor, and all parts of the atmospheric-pressure fixed-bed micro-reactor are in a quasi-working state;

[0077] (2) Put 3g of composite catalyst in a fixed-bed microreactor at normal pressure;

[0078] (3) Pass the mixed gas of hydrogen and nitrogen into the fixed bed micro-reactor at normal pressure, the volume ratio of hydrogen and nitrogen is 1:1, and perform reduction treatment on the composite catalyst, the reduction temperature is 550°C±5°C, and the reduction time is 2h ;

[0079] (4) After the reduction is completed, stop feeding the mixed gas of hydrogen and nitrogen, and then input nitrogen at a speed of 70cm 3 / min, control the reaction temperature at 500°C±5°C;

[0080] (5) Inject the mixture of ethanol and deionized water into the fixed-bed micro-reactor device at no...

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Abstract

The invention relates to a preparation method of a hydrogen production composite catalyst. The preparation method is developed for meeting a requirement of a hydrogen production technology by reforming ethanol and water vapor. The preparation method comprises the steps of taking imvite, nickel nitrate and aluminum nitrate as raw materials, taking deionized water as a solvent, taking sodium hydroxide as a pH (potential of hydrogen) value regulator, preparing a solution, mixing, conducting ion exchange, conducting hydrolytic polymerization in situ, crystallizing, washing, leaching, drying, grinding, roasting, and obtaining a composite catalyst product. The composite catalyst is a nano powder particle; the diameter of the particle is less than or equal to 100nm; and the purity of the product is good, and reaches 99.9%. The preparation method of the hydrogen production composite catalyst is advanced in technology, short in technological process, detailed and accurate in data, safe, stable, reliable and very ideal, and does not pollute an environment.

Description

technical field [0001] The invention relates to a method for preparing a composite catalyst for hydrogen production, which belongs to the technical field of preparation and application of hydrogen production catalysts. Background technique [0002] As a new energy source, hydrogen has the advantages of rich sources, high combustion calorific value, convenient use, clean and pollution-free; there are many methods of hydrogen production, such as: hydrogen production by catalytic reforming of organic matter, hydrogen production by metal replacement, solar photolysis of water Hydrogen production, hydrogen production by electrolysis of water, hydrogen production by pyrolysis of organic matter, hydrogen production by high-energy rays, and hydrogen production by plasma arc; among them, low-carbon alcohols such as methanol and ethanol have attracted the attention of researchers because of their high hydrogen content and low cost; However, methanol is highly toxic and has high storag...

Claims

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Application Information

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IPC IPC(8): B01J23/755C01B3/32
Inventor 谢鲜梅李婷婷殷雪梅周景龙
Owner TAIYUAN UNIV OF TECH
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