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Methanol steam reforming hydrogen production catalyst and its preparation method, hydrogen production method
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A steam reforming and catalyst technology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve the problem of low catalytic activity and achieve high activity Effect
Active Publication Date: 2017-01-18
SHANGHAI HYDROGEN MOBILE REFRMER INSTR
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[0005] All methanol hydrogen production catalysts currently on the market, whether they are copper catalysts, noble metal catalysts or other catalysts, have their own activity temperature, either at 200-300°C, or at 350-450°C, or above 400°C, so the temperature distribution is uneven When the catalysts on the market are applied in the system, the catalytic activity will be low and the catalyst efficiency will be low.
That is, the catalysts on the market will have limitations in the application of non-uniform temperature systems
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[0044] The catalyst specifically includes: oxides of Pt, oxides of Pd, CuO, Fe 2 o 3 , ZnO, rare earth metal oxides, transition metal oxides. Among them, the noble metal Pt content accounts for 0.5% to 2% of the total mass of the catalyst, the content of Pd accounts for 1% to 5% of the total mass of the catalyst, CuO accounts for 5% to 15% of the total mass of the catalyst, Fe 2 o 3 It accounts for 2% to 10% of the total mass of the catalyst, ZnO accounts for 10% to 25% of the total mass of the catalyst, rare earth metal oxides account for 5% to 45% of the total mass of the catalyst, and the rest are transition...
Embodiment 2
[0048] In this embodiment, Pt oxide accounts for 2% of the total mass of the catalyst, Pd oxide accounts for 5% of the total mass of the catalyst, CuO accounts for 15% of the total mass of the catalyst, Fe2O3 accounts for 10% of the total mass of the catalyst, and ZnO accounts for 10% of the total mass of the catalyst. 15%, the rare earth metal oxide accounts for 5% of the total mass of the catalyst, and the transition metal oxide accounts for 48% of the total mass of the catalyst.
Embodiment 3
[0050] In this embodiment, Pt oxide accounts for 0.5% of the total mass of the catalyst, Pd oxide accounts for 1% of the total mass of the catalyst, CuO accounts for 5% of the total mass of the catalyst, Fe2O3 accounts for 2% of the total mass of the catalyst, and ZnO accounts for 2% of the total mass of the catalyst. 25%, the rare earth metal oxide accounts for 5% of the total mass of the catalyst, and the transition metal oxide accounts for 48% of the total mass of the catalyst.
[0051] The hydrogen production process is carried out in a reforming chamber with a temperature change range of 250°C to 550°C. The test data of the above examples are as follows,
[0052]
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Abstract
The invention discloses a multi-active-ingredient catalyst for hydrogen production via methanolsteam reforming and a preparing method of the multi-active-ingredient catalyst. The catalyst comprises the following materials by mass: 0.5-2% of a Pt oxide, 1-5% of a Pd oxide, 5-15% of a Cu oxide, 2-10% of a Fe oxide, 10-25% of a Zn oxide, 5-45% of a rare earthmetal oxide and the rest of a transition metal oxide. The catalyst which is prepared by a dipping process, a co-precipitation process and a gel-sol process through a special technology can be used in a wide temperature range between 250 DEG C and 550 DEG C, the conversion rate of methanol is bigger than 90%, and the hydrogen content in reformed gas is bigger than 70mol%. The catalyst has high activity, great reforming performance and strong operability and is suitable for being used in a non-mean temperature methanolsteam reformingsystem for producing hydrogen.
Description
technical field [0001] The invention belongs to the technical field of hydrogen production technology, and relates to a catalyst, in particular to a multi-active component methanol steam reforminghydrogen production catalyst; at the same time, the invention relates to the preparation of the aforementioned methanol steam reforming hydrogen production catalyst Method; In addition, the present invention also relates to a hydrogen production method using the above methanol steam reforming hydrogen production catalyst. Background technique [0002] In recent years, with the development of proton exchange membrane fuel cells, especially their application in automobiles and distributed power generation, there is an urgent need for small, efficient, and decentralized mobile hydrogen production systems to supply raw hydrogen. As a result, various hydrogen production systems have emerged, as well as various hydrogen production methods. [0003] For example, Chinese patent CN20251902...
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