A hydrocracking catalyst, its preparation method and application, and a method for hydrocracking treatment of residue oil.

By optimizing the catalyst, including molecular sieves, silicon-modified alumina, and active metal components, the problem of insufficient performance of conventional catalysts was solved, achieving efficient hydrocracking of residue oil and improving the selectivity of heavy naphtha and naphtha production.

CN122124849APending Publication Date: 2026-06-02DALIAN ZHONGZHI CHANGXING FINE CHEM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DALIAN ZHONGZHI CHANGXING FINE CHEM CO LTD
Filing Date
2026-03-16
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing conventional hydrocracking catalysts have insufficient hydrogenation performance, low metal utilization, and cannot effectively process heavy feedstocks such as residual oil.

Method used

The catalyst, composed of molecular sieves, silicon-modified alumina, and active metal components, optimizes the support structure and metal distribution through a specific calcination process, thereby increasing the specific surface area, pore volume, and pore size of the catalyst and improving metal utilization.

Benefits of technology

It improved the activity and stability of the catalyst, enhanced the effect of residue hydrocracking, especially the selectivity of heavy naphtha, reduced hydrogen consumption, and increased naphtha production.

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Abstract

This invention relates to the field of hydrocracking catalysts, and discloses a hydrocracking catalyst, its preparation method and application, and a method for hydrocracking treatment of residue oil. The hydrocracking catalyst contains molecular sieves, silicon-modified alumina, and active metal components. Optionally, the hydrocracking catalyst also contains alumina and / or additives. The content of the molecular sieve is 5-25 wt%, the content of the silicon-modified alumina is 30-60 wt%, and the content of the alumina is 0-20 wt%. The content of the active metal components, calculated as oxides, is 5-35 wt%, and the content of the additives, calculated as oxides, is 0-1.0 wt%. The catalyst provided by this invention has the advantages of large specific surface area, large pore volume, large pore size, and high metal content. When used in the hydrocracking treatment of residue oil, it not only exhibits high activity and good stability, but also improves naphtha selectivity, expands feedstock adaptability, and reduces hydrogen consumption.
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