Strontium-promoted cobalt-based composite oxide catalysts for hydrogen production by autothermal reforming of acetic acid

A cobalt-based catalyst and autothermal reforming technology, applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical elements of heterogeneous catalysts, etc., can solve the problem of carbon deposition and catalyst deactivation And other issues
CN111450833BActive Publication Date: 2020-10-30CHENGDU UNIVERSITY OF TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHENGDU UNIVERSITY OF TECHNOLOGY
Publication Date
2020-10-30

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Abstract

The invention relates to a cerium dioxide-loaded strontium-promoted cobalt-based composite oxide catalyst for hydrogen production by autothermal reforming of acetic acid. The invention provides a novel catalyst which is stable in structure and high in activity in order to solve the problem that an existing catalyst is inactivated in an acetic acid autothermal reforming reaction. The molar composition of the catalyst is (SrO) a (CoO1.5) b (CeO2) c, wherein a ranges from 0.75 to 1.75, b ranges from 1.05 to 1.15, and c ranges from 1.50 to 2.50. According to the invention, Co is used as an activecomponent; the cerium dioxide-loaded strontium-promoted cobalt-based composite oxide is prepared by adopting a hydrothermal synthesis method; according to the catalyst, cerium dioxide is used as a skeleton, the catalyst contains a small amount of cobaltosic oxide spinel phase, and the Sr-Co-Ce-O mesoporous composite oxide solid solution catalyst is formed; possible migration, aggregation and sintering of an active component cobalt under a high-temperature condition are effectively inhibited, and the hydrogen yield, sintering resistance and carbon deposition resistance in the acetic acid autothermal reforming process are improved.
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Description

technical field

[0001] The invention relates to a strontium-promoted cobalt-based composite oxide catalyst for hydrogen production by autothermal reforming of acetic acid, belonging to the field of hydrogen production by autothermal reforming of acetic acid. Background technique

[0002] Hydrogen is renewable and has high energy density. It is not only an excellent energy carrier, but also a clean secondary energy source. At present, hydrogen mainly comes from fossil fuels such as natural gas, coal and alkanes, but this preparation method will pollute the environment, especially the released carbon dioxide gas will aggravate the greenhouse effect. Therefore, it is particularly important to seek a clean and renewable hydrogen production method. Biomass is a kind of renewable energy, which is abundant in my country. The production of hydrogen from biomass can reduce environmental pollution and reduce dependence on fossil fuels. Biomass hydrogen production can use thermochemi...

Claims

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