A praseodymium-zirconium composite oxide cobalt-based catalyst for hydrogen production by autothermal reforming of acetic acid

A technology of composite oxides and cobalt-based catalysts, applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical/physical processes, etc., can solve catalyst deactivation, poor stability, intolerance Sintering and other problems to achieve the effect of improving catalytic activity, promoting migration, and inhibiting the production of acetone
CN112916018BActive Publication Date: 2022-06-28CHENGDU 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
2022-06-28

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Abstract

The invention relates to a praseodymium-zirconium composite oxide cobalt-based catalyst for producing hydrogen by autothermal reforming of acetic acid. Aiming at the deactivation problems such as the change of catalyst structure, sintering and carbon deposition in the existing catalyst in the autothermal reforming reaction of acetic acid, the present invention adopts the sol-gel method to prepare Co 3 o 4 and Pr-doped t‑ZrO 2 The Zr-Pr-O composite oxide cobalt-based catalyst limits the aggregation of active components and the growth of grains, and significantly improves the catalyst's anti-coking, anti-sintering ability and hydrogen production rate. Catalyst chemical composition of the present invention is (PrO 1.5 ) a (ZrO 2 ) b (CoO 1.5 ) c , where a is 0‑0.19 and not 0, b is 0.43‑0.69, and c is 0.17‑0.21.
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Description

technical field

[0001] The invention relates to the application of a praseodymium zirconium composite oxide cobalt-based catalyst in the process of producing hydrogen by autothermal reforming of acetic acid, and belongs to the field of producing hydrogen by autothermal reforming of acetic acid. Background technique

[0002] Hydrogen is a clean energy carrier and an important chemical raw material. At present, hydrogen is mainly obtained through the transformation of non-renewable fossil resources such as coal, oil and natural gas, resulting in a large amount of greenhouse gas emissions. As a renewable resource, biomass has the characteristics of abundant sources and environmental friendliness; biomass oil can be obtained by rapid pyrolysis, and the main component of the water phase component of bio-oil is acetic acid, which can be catalyzed by acetic acid, a biomass derivative Reforming large-scale production of cheap hydrogen.

[0003] Usually, in the process of hydrogen ...

Claims

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