Supercritical carbon dioxide catalytic cracking slurry oil mixing device

By employing a dispersion cylinder and dispersion plate design in the mixing equipment, the problems of difficult flow and large pressure drop between oil slurry and supercritical carbon dioxide are solved, achieving a high-efficiency and low-energy-consumption mixing effect, which is suitable for long-term operation under high-pressure conditions.

CN117181039BActive Publication Date: 2026-06-05SINOPEC LUOYANG PETROCHEM ENG CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SINOPEC LUOYANG PETROCHEM ENG CORP
Filing Date
2023-09-25
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing mixing equipment suffers from problems such as flow difficulties, large pressure drop, and difficulty in long-term continuous operation when mixing oil slurry and supercritical carbon dioxide.

Method used

A supercritical carbon dioxide catalytic cracking slurry mixing device was designed, which adopts a dispersion cylinder structure inside a horizontal tank. The dispersion cylinders are nested layer by layer from the inside out, and the dispersion holes are gradually enlarged. Annular channels and dispersion plates are set up to achieve layered and segmented mixing, gradually reducing viscosity, and without stirring elements.

Benefits of technology

It achieves smooth mixing of oil slurry and supercritical carbon dioxide, reduces flow pressure drop, improves mixing efficiency, is suitable for high-pressure long-cycle operation, and has low energy consumption.

✦ Generated by Eureka AI based on patent content.

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    Figure CN117181039B_ABST
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Abstract

The application discloses a supercritical carbon dioxide catalytic cracking oil slurry mixing device, which comprises a horizontal tank body, a dispersion cylinder, a supercritical carbon dioxide outlet and a mixture outlet; the dispersion cylinder is coaxially arranged with the horizontal tank body, and is fixedly connected with the left side head of the horizontal tank body at the left end and is closed and a free end at the right end; the dispersion cylinder is multiple, is nested layer by layer from inside to outside along the radial direction of the horizontal tank body, the inner diameter of the dispersion cylinder is increased layer by layer, and the length is increased layer by layer, and at the same time, annular channels equal to the number of the dispersion cylinder are arranged from inside to outside; dispersion holes are formed on the cylinder wall of the innermost layer of the dispersion cylinder, and an oil slurry inlet is communicated with the innermost layer of the dispersion cylinder; except the innermost layer of the dispersion cylinder, the dispersion holes on the cylinder wall of each layer of the dispersion cylinder are arranged on the non-overlapping part of the cylinder wall of the adjacent inner layer of the dispersion cylinder; and a supercritical carbon dioxide inlet is communicated with each annular channel. The application overcomes the mixing difficulty problem caused by the large viscosity and poor flowability of the oil slurry, and realizes the full mixing of the oil slurry and the supercritical carbon dioxide.
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