Olefin removal catalysts, methods of making and using the same, and methods of removing olefins from aromatic oil

By combining modified HY-type molecular sieves and clay, and loading metal active components, a deolefin removal catalyst with high olefin removal rate and wide applicability was prepared. This solved the problems of low deolefin removal efficiency and poor stability in the existing technology, and achieved efficient and stable olefin removal effect.

CN122298523APending Publication Date: 2026-06-30PETROCHINA CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
PETROCHINA CO LTD
Filing Date
2024-12-31
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing deolefin catalysts have low olefin removal rates, poor stability, and a narrow range of applicable raw materials, resulting in high operating costs, environmental pollution, and substandard product quality.

Method used

By combining HY-type molecular sieves with kaolin and acid-washing modification, and loading them with metal active components, a deolefin removal catalyst with a mesoporous structure is formed. The synergistic effect of this catalyst is used to improve the olefin removal rate and catalytic stability.

Benefits of technology

It achieves efficient removal of olefins from aromatic oils, with an olefin removal rate of up to 95%, and maintains above 85% even after 90 days of continuous use. It is widely applicable to a variety of aromatic oils, reducing equipment operating costs and environmental pollution.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122298523A_ABST
    Figure CN122298523A_ABST
Patent Text Reader

Abstract

This invention relates to the field of petrochemicals, and discloses a deolefin removal catalyst, its preparation method and application, as well as a method for deolefin removal from aromatic oils. The catalyst comprises a HY-type molecular sieve, clay, and a metallic active component, wherein the metallic active component is one or more elements selected from elements VIII and IB; the catalyst has a mesoporous structure, with mesopore volume accounting for 55-70% of the total pore volume. The deolefin removal catalyst provided by this invention exhibits high olefin removal rate and catalytic stability, and has a wide range of applicable feedstocks.
Need to check novelty before this filing date? Find Prior Art