Catalyst, preparation method and application of carbon dioxide decomposition to prepare carbon monoxide

A carbon monoxide and carbon dioxide technology, applied in the direction of metal/metal oxide/metal hydroxide catalyst, carbon monoxide, physical/chemical process catalyst, etc., can solve the problem of not having high temperature thermal stability, easy collapse of material structure, material sintering deactivation, etc. problems, to achieve the effect of easy industrial scale-up, lower decomposition temperature, and good performance repeatability
CN103464134BActive Publication Date: 2015-08-19SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
Publication Date
2015-08-19

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Abstract

The invention relates to a catalyst for preparing carbon monoxide by decomposing carbon dioxide, which is a composite metal oxide obtained by doping Mg and Ca in a cerium-zirconium solid solution. The chemical composition of the catalyst is expressed by the following general formula: Ce0.8-xZr0.2MxO2-x, wherein x equals 0.02-0.1, M is doping metal Mg or Ca, and x is the molar fraction of the doping metal. The catalyst disclosed by the invention has the advantages of high activity, high thermal stability and long service life.
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Description

technical field

[0001] The invention belongs to a catalyst, a preparation method and an application, in particular to a catalyst for preparing carbon monoxide by decomposing carbon dioxide in a thermochemical cycle reaction, a preparation method and an application. technical background

[0002] The massive consumption of fossil energy has led to massive emissions of CO2. As the most important greenhouse gas, CO2 is also a cheap carbon and oxygen resource, and its chemical utilization has attracted more and more researchers' attention. Thermochemical CO using high temperature solar heat 2 The decomposition cycle reaction can produce CO, and can effectively realize the high-efficiency cascade utilization of solar heat to realize the green synthesis of organic chemicals, so it has gradually become a research hotspot. The reaction principle of this cyclic reaction is: firstly, the thermal reduction reaction of the high-valent metal oxide is carried out at a higher temperature...

Claims

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