Copper-zinc-aluminum catalytic material prepared by alkaline atmosphere ball milling method and application thereof

The preparation of copper-zinc-aluminum catalysts by ball milling under an alkaline atmosphere solves the problems of cumbersome processes and high costs in existing technologies, and realizes the preparation of high-activity catalysts with simple and low cost, which are suitable for methanol-water reforming to produce hydrogen.

CN118437337BActive Publication Date: 2026-08-28GUANGXI NORMAL UNIV FOR NATITIES
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Patent Information

Application Number
CN202410549542.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-05-06
Publication Date
2026-08-28
Estimated Expiration
2044-05-06

AI Technical Summary

Technical Problem

The existing preparation process of copper-zinc-aluminum catalysts for methanol reforming to hydrogen is complicated and costly, and there are also problems with waste gas and wastewater treatment.

Method used

Copper-zinc-aluminum catalytic materials were prepared by ball milling under an alkaline atmosphere. The process involved mixing metal powders in a ball mill jar, filling it with alkaline gas, ball milling, followed by drying and calcination, and finally pressing the powder into graphite tablets. This method avoids the generation of waste gas and wastewater.

Benefits of technology

A copper-zinc-aluminum catalyst with simple preparation process, low cost, and high catalyst activity and stability has been developed, which is suitable for low-temperature methanol-water reforming to produce hydrogen.

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Abstract

The application discloses a copper-zinc-aluminum catalytic material prepared by a ball milling method in an alkaline atmosphere and application thereof, and belongs to the field of catalytic technology. The preparation method of the copper-zinc-aluminum catalytic material comprises the following steps: (1) mixing a copper powder, a zinc powder and an aluminum source to obtain a mixed powder, and adding the mixed powder into a ball milling tank provided with zirconium oxide ball milling beads; (2) after air in the ball milling tank is removed, alkaline mixed gas is filled into the ball milling tank, and the ball milling tank is placed into a ball mill; (3) after ball milling, the obtained precursor powder is dried; (4) the dried precursor powder is calcined to obtain a catalyst powder, the catalyst powder is mixed with graphite, and tabletting is performed to form a copper-zinc-aluminum catalytic material. The preparation process is simple, the preparation cost is relatively low, waste gas and waste water are not generated in the preparation process, high cost of environmental protection treatment is avoided, and the copper-zinc-aluminum catalytic material prepared has high activity and stability in a methanol water reforming hydrogen reaction.
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