Homogeneous flow downflow co-current gas-solid fluidized bed reactor.
By using discontinuous obstacles to homogenize catalyst flow in downflow reactors, the issue of non-uniform catalyst distribution is addressed, enhancing the production of light olefins and aromatics through improved mixing and reaction efficiency.
FR3140776B1Active Publication Date: 2026-07-10IFP ENERGIES NOUVELLES
Patent Information
- Authority / Receiving Office
- FR · FR
- Patent Type
- Patents
- Current Assignee / Owner
- IFP ENERGIES NOUVELLES
- Filing Date
- 2022-10-13
- Publication Date
- 2026-07-10
AI Technical Summary
Technical Problem
Conventional downflow gas-solid co-current fluidized bed reactors face challenges with non-homogeneous catalyst flow, leading to segregation and reduced reaction rates due to catalyst accumulation near the reactor walls, which affects the production of light olefins and aromatics.
Method used
Incorporation of discontinuous obstacles within the mixing chamber and downflow reactor to deflect and distribute catalyst particles uniformly, ensuring a homogeneous concentration across the reactor cross-section.
Benefits of technology
The solution enhances catalyst distribution, improving reaction efficiency and product yield by preventing accumulation and promoting uniform mixing, thereby increasing the production of ethylene, propylene, and aromatics.
✦ Generated by Eureka AI based on patent content.
Abstract
Device and method for downflow co-flow catalytic cracking in a fluidized bed comprising / using: a conduit (1) adapted to carry a downflow (4) of catalyst particles; a mixing chamber (2) connected to the conduit (1) and adapted to be fed by the conduit with a downflow, the mixing chamber comprising an inner wall and at least one first injector (5) of hydrocarbon feedstock (6); a downflow co-flow fluidized bed reactor (3) connected to the mixing chamber and adapted to be fed by the mixing chamber with a mixture comprising catalyst particles and hydrocarbon feedstock, the downflow co-flow fluidized bed reactor comprising an inner wall, wherein the inner wall of the mixing chamber and / or the downflow co-flow fluidized bed reactor comprises one or more obstacles (9). Figure 1 to be published
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