Method for generating multi-stage bubbles in slurry bed reactor

By combining a micro bubble generator and a gas distribution plate in a slurry bed reactor, the generation of multi-stage bubbles is achieved, and the problem of single bubble size distribution in the prior art is solved, and the liquid phase volume mass transfer coefficient and reaction efficiency are improved.

CN119926302AActive Publication Date: 2025-05-06PETROCHINA CO LTD +1
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Patent Information

Application Number
CN202311446098.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-11-02
Publication Date
2025-05-06
Estimated Expiration
2043-11-02

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Abstract

The invention provides a method for generating multi-stage bubbles in a slurry bed reactor, which comprises the following steps: slurry enters a microbubble generator, a low-pressure area is formed through a special structure, gas is self-sucked into the microbubble generator and is sheared and broken so as to generate microbubbles, and gas which is not sucked into the microbubble generator generates large bubbles through a gas distribution plate; bubbles coming out of the microbubble generator and the gas distribution plate enter the slurry bed, so that bubbles with ultra-wide size distribution exist in the reactor, the gas-liquid mass transfer rate is improved, meanwhile, uniform dispersion and mixing of gas-liquid-solid three phases are achieved, and the reaction efficiency is remarkably improved.
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Citation Information

Patent Citations

  • Cyclone type micro-bubble generator and gas-liquid reactor

    CN109550418A

  • Multi-scale bubble generating method and device suitable for enhancing mass transfer in slurry bed

    CN110270280A

  • Micro-nano bubble gas-liquid reactor

    CN111346589A

  • Microbubble generator and hydrocarbon oil hydrogenation reactor

    CN213644075U

  • Apparatus for making minute bubbles and method ofmaking therof

    KR1020020089647A

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