A perfluorosulfonic acid type solid acid and a metal-loaded catalyst thereof, and a preparation method and application thereof

By loading metal precursors onto perfluorosulfonic acid-modified inorganic oxide supports, composite catalysts with high specific surface area and mesoporous structure were prepared, solving the problems of low conversion rate and easy carbon deposition and deactivation of perfluorosulfonic acid catalysts, and achieving high catalytic performance and long-term stability.

CN122441489APending Publication Date: 2026-07-24SHENZHEN POLYTECHNIC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-29
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing perfluorosulfonic acid catalysts suffer from low conversion rates, excessive byproducts, and easy carbon deposition and deactivation, making it difficult to maintain high conversion rates, high selectivity, and long-term continuous and stable operation in various electrophilic reactions.

Method used

By loading metal precursors onto perfluorosulfonic acid-modified inorganic oxide supports, a composite solid acid catalyst with high specific surface area, mesoporous structure, and uniform active components was constructed. The catalyst was prepared by impregnation, sol-gel and other methods, and its catalytic activity was restored by solvent elution under an inert atmosphere.

Benefits of technology

It achieves high conversion and high selectivity in reactions such as olefin isomerization, and the catalyst maintains its activity during long-term operation, solving the problems of active component loss and carbon deposition deactivation in traditional catalysts.

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Abstract

The present application relates to a kind of perfluorosulfonic acid type solid acid and its metal load catalyst and its preparation method and application.Belong to solid acid catalyst technical field.The catalyst includes at least one perfluorosulfonic acid resin, at least one carrier and optional metal salt or metal precursor;Wherein, perfluorosulfonic acid resin content accounts for 5-35 wt% of the total mass of catalyst, and the loading of metal salt or metal precursor is 0-5 wt%;Carrier particle has 5-20 nm mesoporous pore size, and ≥0.6 cm3 / g of pore volume and 500-1000 m2 / g of specific surface area.The catalyst described in the present application shows excellent catalytic activity and higher reaction selectivity in the isomerization of olefins and other reactions, long catalytic life, can maintain high activity under mild conditions, and is easy to regenerate, with good industrial application prospect.
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