Zinc-nickel-zirconium mesoporous composite oxide catalyst for hydrogen production by autothermal reforming of acetic acid

A composite oxide and autothermal reforming technology, applied in the direction of metal/metal oxide/metal hydroxide catalyst, physical/chemical process catalyst, chemical/physical process, etc., can solve catalyst deactivation, easy to be oxidized, Not resistant to sintering and other problems, to achieve the effect of improving catalytic activity, inhibiting oxidation, and improving anti-sintering
CN109718784AActive Publication Date: 2019-05-07CHENGDU UNIVERSITY OF TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHENGDU UNIVERSITY OF TECHNOLOGY
Publication Date
2019-05-07

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Abstract

The invention relates to a zinc-nickel-zirconium mesoporous composite oxide catalyst for hydrogen production by autothermal reforming of acetic acid. Directed at the problem that catalyst structure change and the oxidation and sintering of active components can cause catalyst deactivation in existing catalysts during the autothermal reforming reaction of acetic acid, the invention provides a new catalyst characterized by stable structure, sintering resistance, carbon deposition resistance, oxidation resistance, and high activity. The chemical composition of the catalyst is (ZnO)a(NiO)b(ZrO2)c,wherein a is 0.60-2.25, b is 0.40-0.75 and c is 1.00. The invention adopts Ni as the active component, uses ZnO and ZrO2 as the carrier, and adopts coprecipitation method to prepare the Ni / ZnO-ZrO 2composite oxide catalyst, which effectively inhibits the formation of ketene, acetone and other by-products in the reaction process, improves the yield and selectivity of hydrogen, and improves the carbon deposition resistance, sintering resistance and oxidation resistance of the catalyst.
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Description

technical field

[0001] The invention relates to a zinc-nickel-zirconium mesoporous composite oxide catalyst for hydrogen production by autothermal reforming of acetic acid and a preparation method thereof, belonging to the field of hydrogen production by autothermal reforming of acetic acid. Background technique

[0002] So far, most of the fuels used by countries in the world are still fossil fuels, but the problem of environmental pollution still exists. Hydrogen energy is considered by many scientists as an important secondary energy source on the world energy stage because of its high combustion calorific value, wide range of sources, and environmental friendliness. Hydrogen production from biomass is one of the important ways to obtain hydrogen from nature sustainably. However, the energy density of biomass is low, and it is not easy to produce hydrogen on a large scale. Therefore, biomass is usually pyrolyzed into biomass oil with high energy density, easy storage and...

Claims

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