Supported catalyst as well as preparation method and application thereof

By preparing Cu and Ni3N supported carbon catalysts, the problems of high cost and poor stability of Pd-based catalysts were solved, and high conversion and selectivity were achieved in the process of preparing propionic acid by hydrogenation of acrylic acid, which is suitable for large-scale production.

CN122071005APending Publication Date: 2026-05-22DALIAN INSTITUTE OF CHEMICAL PHYSICS CHINESE ACADEMY OF SCIENCES
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Patent Information

Application Number
CN202411668036.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-20
Publication Date
2026-05-22

AI Technical Summary

Technical Problem

Existing Pd-based catalysts for the hydrogenation of acrylic acid to propionic acid suffer from problems such as high catalyst cost, poor stability, and easy polymerization of acrylic acid.

Method used

By using Cu and Ni3N supported carbon catalysts, Cu and Ni3N are generated simultaneously through nitriding in an ammonia atmosphere, and their ratio can be flexibly controlled to prepare a supported catalyst with good activity and high stability.

Benefits of technology

It improves the conversion rate of acrylic acid and the selectivity of propionic acid. The catalyst preparation method is stable and controllable, and is suitable for large-scale production.

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Abstract

The invention discloses a supported catalyst as well as a preparation method and application thereof. The supported catalyst comprises a carbon carrier and an active component supported on the surface of the carbon carrier; the active component comprises a copper simple substance and Ni3N; the catalyst can be applied to a reaction for preparing propionic acid through acrylic acid hydrogenation, and the conversion rate of acrylic acid and the selectivity of generated propionic acid are improved. The preparation method is stable, controllable and good in reproducibility.
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