Catalytic cracking and catalytic cracking reaction settler stripping system

By employing a combination structure of inner, outer, and middle annular gas baffles and vibration damping rods in the catalytic cracking and catalytic pyrolysis reaction settling tank, the problem of insufficient contact in existing stripping systems under large-capacity conditions has been solved, achieving efficient catalyst-steam contact and meeting the needs of large-scale reactions.

CN122104283APending Publication Date: 2026-05-29SINOPEC ENGINEERING INCORPORATION +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SINOPEC ENGINEERING INCORPORATION
Filing Date
2024-11-29
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

The existing stripping system structure is not suitable for the requirements of large-capacity, large-diameter, and high-temperature catalytic cracking and catalytic pyrolysis reactions, and the contact between catalyst, oil, and gas is insufficient.

Method used

It adopts a combined structure of inner ring annular gas baffle, outer ring annular gas baffle and middle ring annular gas baffle. The middle ring annular gas baffle has a herringbone cross section to form an S-shaped flow path. It is also equipped with multiple sets of vibration damping tie rods, high temperature resistant ceramic fiber pads and steam distribution rings to enhance the contact efficiency between the catalyst and steam.

Benefits of technology

Without increasing the length of the stripping system, the contact efficiency of catalyst, oil, and steam is improved, meeting the requirements of large-scale catalytic cracking and catalytic pyrolysis reactions, and reducing equipment wear and disturbance.

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Abstract

The application provides a catalytic cracking and catalytic cracking reaction settler stripping system, and belongs to the technical field of petroleum refining and coal chemical industry. The system has an inner ring annular vapor baffle, an outer ring annular vapor baffle and a middle ring annular vapor baffle. The middle ring annular vapor baffle is in a herringbone shape. One side of the middle ring annular vapor baffle forms an S-shaped inner ring flow path with the inner ring annular vapor baffle. The other side of the middle ring annular vapor baffle forms an S-shaped outer ring flow path with the outer ring annular vapor baffle. In the case of increasing the diameter of the stripping system, the length of the stripping system does not need to be increased, the catalyst, oil and steam can be more fully contacted, and the requirements of large processing capacity of catalytic cracking and catalytic cracking reaction can be met.
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