Catalyst for synthesizing methanol from carbon dioxide and preparation method thereof

By using the grinding, molding and roasting methods of glucose and alumina powder to prepare catalysts, the problem of large wastewater volume and unstable catalyst structure in existing technologies can be solved. The process process.

CN119368189APending Publication Date: 2025-01-28BINZHOU ZHONGKE CATALYTIC TECH CO LTD
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Patent Information

Application Number
CN202411570462.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-06
Publication Date
2025-01-28

AI Technical Summary

Technical Problem

The existing methanol catalyst preparation method requires a large amount of water to wash, resulting in large amount of wastewater, and the co-precipitation method leads to loose and irregular catalyst structure, affecting stability and activity.

Method used

The method of glycosate solution and aluminum oxide powder is used for grinding, molding and roasting methods to prepare catalysts, avoiding the washing steps, simplifying the process, forming a carbon/alumina composite carrier, and improving the stability and activity of the catalyst.

Benefits of technology

The high activity and stability of catalysts are achieved, while avoiding the generation of large amounts of wastewater, simplifying the process of process, and reducing the pressure of wastewater treatment.

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Abstract

The invention provides a preparation method of a catalyst for synthesizing methanol from carbon dioxide, which comprises the following steps: dissolving gluconate containing copper gluconate, magnesium gluconate and zinc gluconate in a solvent to obtain a gluconate solution; adding aluminum oxide powder into the gluconate solution, and then grinding, forming and drying to obtain a precursor; and roasting the precursor in an inert atmosphere to obtain the catalyst for synthesizing methanol from carbon dioxide. The preparation method provided by the invention has the advantages of simple process flow, no need of a washing process, no generation of a large amount of wastewater, small wastewater treatment pressure, and good performance of the obtained catalyst.
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Citation Information

Patent Citations

  • A method for preparing a methanol synthesis catalyst

    CN109420501B